WO2016151721A1 - 管理装置及び音響調整管理方法、並びに、音響装置及び楽曲再生方法 - Google Patents
管理装置及び音響調整管理方法、並びに、音響装置及び楽曲再生方法 Download PDFInfo
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- WO2016151721A1 WO2016151721A1 PCT/JP2015/058678 JP2015058678W WO2016151721A1 WO 2016151721 A1 WO2016151721 A1 WO 2016151721A1 JP 2015058678 W JP2015058678 W JP 2015058678W WO 2016151721 A1 WO2016151721 A1 WO 2016151721A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/005—Tone control or bandwidth control in amplifiers of digital signals
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/16—Automatic control
- H03G5/165—Equalizers; Volume or gain control in limited frequency bands
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
- H04S7/307—Frequency adjustment, e.g. tone control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/03—Synergistic effects of band splitting and sub-band processing
Definitions
- the present invention includes a management device, an acoustic adjustment management method, an acoustic adjustment management program, a recording medium on which the acoustic adjustment management program is recorded, and an acoustic device, a music reproduction method, a music reproduction program, and the music reproduction program.
- the present invention relates to a recording medium.
- Patent Document 1 a technique for reproducing and outputting music suitable for the user's preference in consideration of the nationality of the user.
- a sound engineer generates a plurality of sound processing parameters according to various environments or user preferences in advance.
- the server device receives the user profile or the like indicated by the nationality, race, age, type, etc. of the user sent from the terminal device in a state where a plurality of such voice processing parameters are generated, Analyzing user preferences and selecting speech processing parameters based on the analysis results. Subsequently, the server device recommends the terminal device to use the voice processing parameter. Then, the terminal device executes the audio processing using the recommended audio processing parameter, and the reproduction device reproduces the audio processing result.
- the inventors research has revealed that the tendency of the characteristics of music differs depending on the country or region in which the music was produced.
- a specific example will be described with reference to FIGS.
- the inventors of the present application independently analyzed a plurality of pieces of music produced in different countries, and the results are shown as octave band information.
- the octave band information indicates an average value obtained as a result of analyzing a plurality of music pieces, and is expressed as a relative value when the level [dB] is set to “0” at 1000 [Hz]. ing.
- the music produced in the country corresponding to FIG. 1 (A) is lower than the music produced in the country corresponding to FIG. 1 (B). It can be seen that the band (band of 100 Hz or less) tends to be strong. In addition, the music produced in the country corresponding to FIG. 1B tends to be stronger in the midrange (around 500 Hz to 1 kHz) than the music produced in the country corresponding to FIG. I understand. Thus, it has been found from the inventor's research that the tendency of the characteristics of the music differs depending on the country or region in which the music is produced, and when the music is played back, the sound adjustment according to the country or area is performed. It is considered necessary.
- the region attribute corresponding to the music to be reproduced such as the country or region in which the music to be reproduced is created, is not considered.
- the sound cannot be adjusted in accordance with the music features associated with the regional attributes of the music.
- a storage unit that associates and stores attribute information including area information and adjustment information related to music reproduction; first to acquire designated area information relating to a designated area from an audio device; An acquisition unit; and a deriving unit that derives the setting update information of the acoustic device based on the information stored in the storage unit and the designated area information, and transmits the setting update information to the acoustic device. It is the management apparatus characterized by this.
- the invention according to claim 9 is a first acquisition unit that acquires attribute information including area information about an area corresponding to a music to be reproduced; a transmission unit that transmits the attribute information as designated attribute information to a management apparatus; A second acquisition unit that acquires from the management device setting update information related to the reproduction of the music derived based on the designated attribute information; and the music based on the setting update information acquired by the second acquisition unit. And a control unit for controlling the reproduction of the audio device.
- the invention according to claim 12 is an acoustic adjustment management method used in a management apparatus including a storage unit that stores attribute information including area information and adjustment information related to music reproduction in association with each other. Obtaining a designated area information relating to the designated area; deriving step for deriving setting update information of the acoustic device based on the information stored in the storage unit and the designated area information; and the setting A transmission step of transmitting update information to the acoustic device.
- the invention described in claim 13 is an acoustic adjustment management program that causes a computer included in the management apparatus to execute the acoustic adjustment management method according to claim 12.
- the invention described in claim 14 is a recording medium in which the sound adjustment management program according to claim 13 is recorded so as to be readable by a computer included in the management apparatus.
- the invention according to claim 15 is a music playback method used in an audio device for playing back music, the first acquisition step of acquiring attribute information including area information related to the area corresponding to the music to be played back; A transmission step of transmitting attribute information as designated attribute information to the management device; a second acquisition step of obtaining setting update information relating to the reproduction of the music derived based on the designated attribute information from the management device; And a control step of controlling reproduction of the music based on the setting update information acquired in the 2 acquisition step.
- the invention described in claim 16 is a music reproduction program characterized by causing a computer of an audio device to execute the music reproduction method according to claim 15.
- the invention according to claim 17 is a recording medium on which the music reproduction program according to claim 16 is recorded so as to be readable by a computer included in the audio device.
- FIG. 2 It is a figure which shows the example of the octave band information obtained by analyzing the music produced in each different country. It is a block diagram which shows roughly the structure of the management apparatus which concerns on one Embodiment of this invention, and an audio equipment. It is a figure for demonstrating the content of the analysis information memorize
- management device 110 ... transmission / reception unit (first acquisition unit, second acquisition unit of management device) DESCRIPTION OF SYMBOLS 120 ... Memory
- FIG. 2 is a block diagram illustrating schematic configurations of the management device 100 and the audio device 200 according to an embodiment.
- the management apparatus 100 is arrange
- the acoustic device 200 is disposed in the vehicle.
- the management device 100 and the audio device 200 can communicate with each other via a network.
- the management apparatus 100 and the music content server 300 can communicate with each other via a network.
- the management device 100 can communicate with other acoustic devices configured in the same manner as the acoustic device 200, but only the acoustic device 200 is representatively shown in FIG.
- the management device 100 includes a transmission / reception unit 110 and a storage unit 120, as shown in FIG.
- the management device 100 includes a generation unit 130 and a derivation unit 140.
- the music attribute information PPM # p is periodically received.
- the transmission / reception unit 110 sends the music content MUI # p and the music attribute information PPM # p to the generation unit 130.
- the “music attribute information PPM # p” includes information related to the region corresponding to the music content MUI # p and the production year information of the music content MUI # p.
- the transmission / reception unit 110 receives the designated attribute information PPD from the audio device 200 via the network. Then, the transmission / reception unit 110 sends the designated attribute information PPD to the derivation unit 140.
- the “designated attribute information PPD” includes information (designated area information) relating to the area (designated area) corresponding to the music played back by the audio device 200, and the year of creation of the song. Yes.
- the transmission / reception unit 110 receives the setting update information SEI sent from the derivation unit 140. Then, the transmission / reception unit 110 transmits the setting update information SEI to the acoustic device 200 via the network. That is, the transmission / reception unit 110 functions as a first acquisition unit and a second acquisition unit.
- the storage unit 120 includes a non-volatile storage device such as a hard disk device. Various information data used in the management apparatus 100 is stored in the storage unit 120. Such information data includes analysis information ANI and adjustment information TUI. The storage unit 120 can be accessed by the generation unit 130 and the derivation unit 140.
- the music analysis information MAI # p includes octave band information OCB # p, instrument appearance frequency information APF # p, and L / R phase difference information PHD # p together with music attribute information PPM # p.
- the analysis information ANI is generated by the generation unit 130 and stored in the storage unit 120.
- the octave band information OCB # p is a result of performing a 1/3 octave band analysis on the music corresponding to the music content MUI # p, and is information on frequency characteristics.
- the octave band information OCB # p is information expressed as a relative value when the level [dB] is set to “0” at 1000 [Hz].
- the musical instrument appearance frequency information APF # p is a result of calculating the appearance frequency of the reproduction sound of a predetermined instrument such as a piano or bass for the music corresponding to the music content MUI # p, and the appearance frequency of the predetermined instrument. It is information about.
- the predetermined musical instrument is a piano and a bass.
- the L / R phase difference information PHD # p is a result of performing a phase difference analysis of the left audio signal and the right audio signal for the music corresponding to the music content MUI # p. Information about the phase difference.
- Octave band information OCB j, k instrument appearance frequency information APF j, k and L / R phase difference information PHD j, k are included.
- the adjustment information TUI is generated by the generation unit 130 and stored in the storage unit 120.
- the generation unit 130 uses the generated octave band information OCB # p, instrument appearance frequency information APF # p, and L / R phase difference information PHD # p together with the music attribute information PPM # p, and music analysis information MAI #. p is stored in the storage area of the analysis information ANI in the storage unit 120.
- the generation unit 130 generates adjustment information TUI.
- the generation unit 130 accesses the analysis information ANI in the storage unit 120 and reads the octave band information OCB # p and the music attribute information PPM # p of the music analysis information MAI # p.
- the generation unit 130 generates the above-described octave band information OCB j, k by averaging the extracted octave band information.
- the generation unit 130 generates adjustment information TUI including the generated octave band information OCB j, k , instrument appearance frequency information APF j, k, and L / R phase difference information PHD j, k . Then, the generation unit 130 stores the adjustment information TUI in the storage unit 120.
- the derivation unit 140 receives the designated attribute information PPD sent from the transmission / reception unit 110. Upon receipt of the designated attribute information PPD, the derivation unit 140 accesses the storage unit 120 to write octave band information (hereinafter, “setting octave band information OCB” corresponding to the designated attribute information PPD) from the adjustment information TUI. ), Instrument appearance frequency information (hereinafter also referred to as “setting instrument appearance frequency information APF”) and L / R phase difference information (hereinafter also referred to as “setting L / R phase difference information PHD”).
- octave band information hereinafter, “setting octave band information OCB” corresponding to the designated attribute information PPD
- Instrument appearance frequency information hereinafter also referred to as “setting instrument appearance frequency information APF”
- L / R phase difference information PHD L / R phase difference information
- the derivation unit 140 When these pieces of information are read, the derivation unit 140 first specifies the frequency characteristic indicated by the setting octave band information OCB as the sound quality adjustment setting value. Subsequently, the derivation unit 140 reads the appearance frequency of the piano and the bass from the setting instrument appearance frequency information APF. Then, when the appearance frequency of the piano is equal to or higher than the first predetermined value AP1, the deriving unit 140 increases the gain by the first predetermined amount GP1 with respect to the frequency band of the piano sound at the specified sound quality adjustment setting value. In addition, when the appearance frequency of the piano is equal to or lower than the second predetermined value AP2, the deriving unit 140 decreases the gain by the second predetermined amount GP2 with respect to the frequency band of the piano sound at the specified sound quality adjustment setting value.
- the deriving unit 140 increases the gain by the first predetermined amount GB1 with respect to the frequency band of the base sound at the specified sound quality adjustment setting value. Further, when the appearance frequency of the bass is equal to or lower than the second predetermined value AB2, the deriving unit 140 decreases the gain by the second predetermined amount GB2 with respect to the frequency band of the base sound at the specified sound quality adjustment setting value.
- the first predetermined value AP1, the second predetermined value AP2, the first predetermined amount GP1, and the second predetermined amount GP2 appropriately change the volume of the piano sound according to the appearance frequency of the piano sound.
- the first predetermined value AB1, the second predetermined value AB2, the first predetermined amount GB1, and the second predetermined amount GB2 are appropriately changed in accordance with the appearance frequency of the base sound. It is determined in advance based on experiments, simulations, experiences, and the like.
- the deriving unit 140 generates a speaker setting for turning on the use of the subwoofer speaker when the level of the predetermined low frequency range indicated by the setting octave band information OCB is equal to or higher than the predetermined level value.
- the deriving unit 140 generates a speaker setting that turns off the use of the subwoofer speaker when the level of the predetermined low frequency range is smaller than the predetermined level value.
- the range of the predetermined low frequency range and the predetermined level value are determined in advance based on experiments, simulations, experiences, and the like from the viewpoint of appropriately enjoying the low frequency range sound.
- the derivation unit 140 generates a signal processing setting for performing reverberation processing from the setting L / R phase difference information PHD when the phase difference between the left audio signal and the right audio signal is smaller than the predetermined phase difference.
- the deriving unit 140 when the phase difference is equal to or larger than the predetermined phase difference, the deriving unit 140 generates a signal processing setting indicating that the reverberation process is not performed.
- the predetermined phase difference is determined in advance based on experiments, simulations, experiences, and the like from the viewpoint of providing a sense of breadth when the monaural feeling is strong between the left voice and the right voice as they are.
- the derivation unit 140 transmits / receives the sound quality adjustment setting update information regarding the sound quality adjustment setting value subjected to gain adjustment, the speaker setting update information regarding the speaker setting, and the signal processing setting update information regarding the signal processing setting as setting update information SEI. Send to section 110.
- the acoustic device 200 includes a music information supply unit 220, an adjustment setting unit 230, and a sound output unit 250.
- the audio device 200 includes an input unit 260, an attribute information acquisition unit 270, and a transmission / reception unit 280.
- the music information supply unit 220 generates the music signal MUD based on the music content data for reproduction. Then, the music information supply unit 220 sends the generated music signal MUD to the adjustment setting unit 230.
- the music information supply unit 220 is configured to send the music signal MUD to the adjustment setting unit 230 when receiving a supply instruction sent from the attribute information acquisition unit 270 or the adjustment setting unit 230.
- the music information supply unit 220 reads the area corresponding to the music of the music content data and the year of production of the music from the music content data. Information regarding the region corresponding to the music read in this way and the year information of the music are sent to the attribute information acquisition unit 270 as reproduction music attribute information.
- the above-described adjustment setting unit 230 receives the setting update information SEI transmitted from the management apparatus 100 via the transmission / reception unit 280, and performs setting update related to the acoustic processing based on the setting update information SEI.
- the adjustment setting unit 230 receives the music signal MUD sent from the music information supply unit 220, the adjustment setting unit 230 performs acoustic processing on the music signal MUD and generates a reproduced audio signal to be sent to the sound output unit 250. Details of the configuration of the adjustment setting unit 230 will be described later.
- the sound output unit 250 includes a tweeter speaker SP TW that is a high-frequency speaker, a mid-range speaker SP MR that is a medium-frequency speaker, and a subwoofer speaker SP SW that is a very low-frequency speaker. ing.
- the sound output unit 250 receives the reproduced audio signal sent from the adjustment setting unit 230.
- the sound output unit 250 outputs the music sound in accordance with the reproduced audio signal loudspeaker SP TW, SP MR, from SP SW.
- the input unit 260 includes a key unit provided in the audio device 200 and / or a remote input device including the key unit.
- the operation content of the acoustic device 200 is set and an operation command is performed.
- the user uses the input unit 260 to specify playback of music content.
- the attribute information acquisition unit 270 receives the reproduction music attribute information sent from the music information supply unit 220. When the attribute information acquisition unit 270 does not hold the holding attribute information inside, the attribute information acquisition unit 270 holds the acquired reproduction music piece attribute information as holding attribute information. Then, the attribute information acquisition unit 270 sends the reproduction music piece attribute information to the transmission / reception unit 280 as designated attribute information PPD.
- the attribute information acquisition unit 270 holds the holding attribute information therein, the attribute information for holding and the reproduced music attribute information acquired this time are the same each time the reproduced music attribute information is received. The identity is determined. If the result of the identity determination is affirmative, the attribute information acquisition unit 270 sends a supply instruction to the music information supply unit 220.
- the attribute information acquisition unit 270 sends a supply standby instruction to the music information supply unit 220 and transmits / receives the playback music attribute information as designated attribute information PPD. Send to 280. Then, the attribute information acquisition unit 270 holds the reproduction music piece attribute information acquired this time as holding attribute information. That is, the attribute information acquisition unit 270 functions as a first acquisition unit.
- the transmission / reception unit 280 receives the designated attribute information PPD sent from the attribute information acquisition unit 270. Then, the transmission / reception unit 280 transmits the designated attribute information PPD to the management apparatus 100 via the network.
- the transmission / reception unit 280 receives the setting update information SEI from the management apparatus 100 via the network. Then, the transmission / reception unit 280 sends the setting update information SEI to the adjustment setting unit 230. That is, the transmission / reception unit 280 functions as a transmission unit and a second acquisition unit.
- the adjustment setting unit 230 includes a sound quality adjustment unit 231, a reverberation sound signal generation unit 232, and an addition unit 233.
- the adjustment setting unit 230 includes a speaker setting unit 234 and a control unit 239.
- the sound quality adjustment unit 231 receives the sound quality adjustment setting update information sent from the control unit 239. Then, the sound quality adjustment unit 231 sets the value indicated by the sound quality adjustment setting update information as the sound quality adjustment setting value EQ. When the sound quality adjustment setting value EQ is set in this way, the sound quality adjustment unit 231 performs a sound quality adjustment process on the music signal MUD sent from the music information supply unit 220 to generate a sound quality adjustment signal AFD. The sound quality adjustment signal AFD generated in this way is sent to the reverberation sound signal generation unit 232 and the addition unit 233.
- the reverberation sound signal generation unit 232 receives the sound quality adjustment signal AFD sent from the sound quality adjustment unit 231. Then, the reverberation signal generation unit 232 performs a predetermined process such as a reverberation signal generation process using a comb filter and an all-pass filter on the sound quality adjustment signal AFD to generate a reverberation signal RVD. . The reverberation signal RVD thus generated is sent to the adding unit 233.
- the addition unit 233 receives the sound quality adjustment signal AFD sent from the sound quality adjustment unit 231 and the reverberation sound signal RVD sent from the reverberation sound signal generation unit 232. Further, the adding unit 233 receives the signal processing setting update information sent from the control unit 239. Then, when the content of the signal processing setting update information performs reverb processing, the adding unit 233 generates a processed signal PRD obtained by adding the sound quality adjustment signal AFD and the reverberation signal RVD, and sends the processed signal PRD to the speaker setting unit 234. . On the other hand, when the content of the signal processing setting update information does not perform reverb processing, the adding unit 233 sends the sound quality adjustment signal AFD to the speaker setting unit 234 as the processing signal PRD.
- the speaker setting unit 234 receives the processed signal PRD sent from the adding unit 233. Also, the speaker setting unit 234 receives the speaker setting update information sent from the control unit 239. Then, when the content of the speaker setting update information sets the use of the subwoofer speaker to “ON”, the speaker setting unit 234 outputs a reproduction audio signal to which music sound is to be output from all speakers to the sound output unit 250. send. On the other hand, when the content of the speaker setting update information sets the use of the subwoofer speaker to “OFF”, the speaker setting unit 234 outputs a playback audio signal to which music sound is output from a speaker other than the subwoofer speaker SP SW. The data is sent to the output unit 250.
- the control unit 239 controls the reproduction of the music sound based on the music content data.
- the control unit 239 receives the setting update information SEI sent from the transmission / reception unit 280.
- the control unit 239 Upon receiving the setting update information SEI, the control unit 239 sends the sound quality adjustment setting update information included in the setting update information SEI to the sound quality adjustment unit 231.
- the control unit 239 transmits the signal processing setting update information included in the setting update information SEI to the adding unit 233, and transmits the speaker setting update information included in the setting update information SEI to the speaker setting unit 234.
- control unit 239 sends a supply instruction to the music information supply unit 220.
- the generation unit 130 of the management apparatus 100 generates the adjustment information TUI and stores it in the storage unit 120.
- step S11 the attribute information acquisition unit 270 plays the playback music attribute sent from the music information supply unit 220 when playing a new music. It is determined whether or not information has been received. If the result of this determination is negative (step S11: N), the process of step S11 is repeated.
- step S11 the attribute information acquisition unit 270 determines whether or not the newly received reproduction music attribute information is the same as the holding attribute information held inside. Note that the attribute information acquisition unit 270 makes a negative determination in step S12 when the holding attribute information is not held therein. If the result of this determination is affirmative (step S12: Y), the attribute information acquisition unit 270 sends a supply instruction to the music information supply unit 220. And a process progresses to step S16 mentioned later.
- step S12 If the result of the determination in step S12 is negative (step S12: N), the process proceeds to step S13.
- step S13 the music information supply unit 220 sends the reproduction music attribute information to the transmission / reception unit 280 as designated attribute information PPD. Further, the music information supply unit 220 holds the reproduction music attribute information acquired this time as holding attribute information. Then, the transmission / reception unit 280 transmits the designated attribute information PPD to the management apparatus 100 via the network.
- step S14 the control unit 239 determines whether or not the setting update information SEI has been received. If the result of this determination is negative (step S14: N), the process of step S14 is repeated.
- the management apparatus 100 When the management apparatus 100 receives the designated attribute information PPD transmitted from the audio device 200 in step S13, the management apparatus 100 executes a “setting update information derivation process” described later. When the setting update information SEI is derived, the management apparatus 100 transmits the setting update information SEI to the acoustic apparatus 200 via the network.
- step S14 When the setting update information SEI is received and the result of determination in step S14 is affirmative (step S14: Y), the process proceeds to step S15.
- step S ⁇ b> 15 the control unit 239 sends the sound quality adjustment setting update information included in the setting update information SEI to the sound quality adjustment unit 231.
- the control unit 239 transmits the signal processing setting update information included in the setting update information SEI to the adding unit 233, and transmits the speaker setting update information included in the setting update information SEI to the speaker setting unit 234.
- the control unit 239 sends a supply instruction to the music information supply unit 220.
- step S16 the music information supply unit 220 starts supplying the music signal MUD to the sound quality adjustment unit 231 of the adjustment setting unit 230. Thereafter, the process returns to step S11.
- the sound quality adjustment unit 231 performs a sound quality adjustment process on the music signal MUD based on the updated sound quality adjustment setting value EQ to generate a sound quality adjustment signal AFD. Then, the sound quality adjustment unit 231 sends the generated sound quality adjustment signal AFD to the reverberation sound signal generation unit 232 and the addition unit 233. Upon receiving the sound quality adjustment signal AFD, the reverberation sound signal generation unit 232 generates a reverberation sound signal RVD of the sound quality adjustment signal AFD and sends it to the addition unit 233.
- the adding unit 233 sends the signal obtained by adding the reverberation signal RVD to the sound quality adjustment signal AFD or the sound quality adjustment signal AFD itself to the speaker setting unit 234 as the processed signal PRD according to the signal processing setting update information.
- the speaker setting unit 234 generates a playback audio signal according to the speaker setting update information and sends it to the sound output unit 250.
- the music sound suitable for the adjustment setting of the region and production year corresponding to the music is output from the selected speaker of the sound output unit 250.
- step S21 whether or not the derivation unit 140 has received the designated attribute information PPD transmitted from the acoustic device 200. Determine whether. If the result of this determination is negative (step S21: N), the process of step S21 is repeated.
- step S21 If the deriving unit 140 receives new specified attribute information PPD during the repetition of step S21 and the determination result in step S21 is affirmative (step S21: Y), the process proceeds to step S22.
- step S22 the derivation unit 140 accesses the storage unit 120, and from the adjustment information TUI, setting octave band information OCB, setting instrument appearance frequency information APF, and setting L / R positions corresponding to the specified attribute information PPD.
- the phase difference information PHD is read. Thereafter, the process proceeds to step S23.
- step S23 the derivation unit 140 generates update information of the sound quality adjustment setting.
- the deriving unit 140 first specifies the frequency characteristic indicated by the setting octave band information OCB as the sound quality adjustment setting value. Subsequently, when the appearance frequency of the piano included in the setting instrument appearance frequency information APF is equal to or higher than the first predetermined value AP1, the deriving unit 140 uses the first predetermined amount for the frequency band of the piano sound at the specified sound quality adjustment setting value. Increase the gain by GP1. In addition, when the appearance frequency of the piano is equal to or lower than the second predetermined value AP2, the deriving unit 140 decreases the gain by the second predetermined amount GP2 with respect to the frequency band of the piano sound at the specified sound quality adjustment setting value.
- the deriving unit 140 increases the gain by the first predetermined amount GB1 with respect to the frequency band of the base sound at the specified sound quality adjustment setting value. Further, when the appearance frequency of the bass is equal to or lower than the second predetermined value AB2, the deriving unit 140 decreases the gain by the second predetermined amount GB2 with respect to the frequency band of the base sound at the specified sound quality adjustment setting value.
- step S24 the deriving unit 140 generates speaker setting update information.
- the deriving unit 140 turns “ON” the use of the subwoofer speaker when the level of the predetermined bass range of the frequency characteristic indicated by the setting octave band information OCB is equal to or higher than the predetermined level value.
- the deriving unit 140 generates a speaker setting that turns off the use of the subwoofer speaker when the level of the predetermined low frequency range is smaller than the predetermined level value.
- step S25 the derivation unit 140 generates update information of signal processing settings.
- the deriving unit 140 performs reverberation processing when the phase difference between the left audio signal and the right audio signal is smaller than the predetermined phase difference from the setting L / R phase difference information PHD. A signal processing setting is generated.
- the deriving unit 140 when the phase difference is equal to or larger than the predetermined phase difference, the deriving unit 140 generates a signal processing setting indicating that the reverberation process is not performed. Thereafter, the process proceeds to step S26.
- step S26 the deriving unit 140 sends the sound quality adjustment setting value update information, the speaker setting update information, and the signal processing setting update information to the transmission / reception unit 110 as setting update information SEI. Then, the transmission / reception unit 110 transmits the setting update information SEI to the audio device 200 via the network. Thereafter, the process returns to step S21. Thereafter, the processes of steps S21 to S26 are repeated.
- the attribute information acquisition unit 270 plays the music to be played. Music attribute information is acquired from the music information supply unit 220. Then, the attribute information acquisition unit 270 performs the same determination as to whether or not the newly acquired reproduction music attribute information is the same as the holding attribute information held therein, and the result of the determination is affirmative. If it is, the supply instruction is sent to the music information supply unit 220. On the other hand, when the result of the same determination is negative, the attribute information acquisition unit 270 transmits the reproduction music piece attribute information to the management apparatus 100 as the designated attribute information PPD.
- the derivation unit 140 when the designated attribute information PPD is received, the derivation unit 140, from the adjustment information TUI in the storage unit 120, sets octave band information OCB, setting instrument appearance frequency information APF, and settings corresponding to the designated attribute information PPD. L / R phase difference information PHD is obtained. Subsequently, the deriving unit 140 specifies the frequency characteristic indicated by the setting octave band information OCB as the sound quality adjustment setting value. Further, the deriving unit 140 performs gain adjustment on the frequency band of the piano sound and the bass sound in the specified sound quality adjustment setting value based on the appearance frequency of the piano and the bass included in the setting instrument appearance frequency information APF.
- the deriving unit 140 generates a speaker setting that specifies “ON / OFF” of the subwoofer speaker based on the level of a predetermined low frequency range of the frequency characteristic indicated by the setting octave band information OCB. Further, the derivation unit 140 generates a signal processing setting that specifies execution or non-execution of the reverb process based on the setting L / R phase difference information PHD. Then, the derivation unit 140 transmits the update information of the sound quality adjustment setting value, the update information of the speaker setting, and the update information of the signal processing setting to the audio device 200 as the setting update information SEI.
- the control unit 239 of the adjustment setting unit 230 sends update information of the sound quality adjustment setting value to the sound quality adjustment unit 231.
- the control unit 239 sends update information of signal processing settings to the addition unit 233 and sends update information of speaker settings to the speaker setting unit 234.
- the music information supply unit 220 supplies the music signal MUD to the sound quality adjustment unit 231, and the sound quality adjustment unit 231 performs the music signal based on the updated sound quality adjustment setting value EQ.
- a sound quality adjustment signal AFD is generated by performing a sound quality adjustment process on the MUD.
- the sound quality adjustment unit 231 sends the generated sound quality adjustment signal AFD to the reverberation sound signal generation unit 232 and the addition unit 233.
- the adding unit 233 sends a signal obtained by adding the reverberation signal RVD to the sound quality adjustment signal AFD or the sound quality adjustment signal AFD itself to the speaker setting unit 234 as the processed signal PRD according to the signal processing setting.
- the speaker setting unit 234 generates a playback audio signal according to the speaker setting and sends it to the sound output unit 250.
- the sound quality adjustment setting according to the sound quality characteristics of the region corresponding to the music to be reproduced and output and the year of production can be set for the audio device 200.
- the frequency band gain of the musical instrument is increased for musical instruments having a high appearance frequency in accordance with the appearance frequency of the musical instrument in the region corresponding to the music to be reproduced and output and the average musical composition of the production year.
- the sound quality adjustment setting in a manner of lowering the gain of the frequency band of the musical instrument can be set for the acoustic device 200.
- the adjustment information stored in the management device is information for each region and for each year of production of the music associated with the region.
- the adjustment information may be information for each region and for each music production year and genre of music associated with the region.
- the designated attribute information can include the production year information of the music and the genre information of the music associated with the information about the area corresponding to the music to be reproduced. .
- the adjustment information in the storage unit may be information for each region and for each genre of music associated with the region.
- the specified attribute information (reproduced music attribute information) can include the genre information of the music associated with the information regarding the area corresponding to the music.
- the adjustment information in the storage unit may be information associated with each region.
- the designated attribute information (reproduced music attribute information) can be made up of information related to the area corresponding to the music.
- the derivation unit when generating the update information of the sound quality adjustment setting, specifies the frequency characteristic indicated by the setting octave band information as the sound quality adjustment setting value, and then the specified sound quality adjustment setting. The gain was adjusted according to the appearance frequency of the piano and bass for the value.
- the derivation unit specifies the frequency characteristic indicated by the setting octave band information as the sound quality adjustment setting value to be transmitted to the audio device, and does not perform gain adjustment according to the appearance frequency of the subsequent instrument. Also good.
- the gain corresponding to the appearance frequency of the piano or bass is determined with respect to the specified sound quality adjustment setting value. Adjustment was made.
- the frequency of appearance of musical instruments other than piano and bass is analyzed. For musical instruments with a high frequency of appearance, the gain of the frequency band of the musical instrument is increased. You may make it perform the sound quality adjustment setting of the aspect which makes a gain low.
- the frequency of appearance of voice quality is analyzed, not limited to musical instruments, and the frequency band gain of the voice quality is increased for the voice quality, and the frequency band gain of the voice quality is determined for the voice quality with a lower frequency of appearance.
- the sound quality adjustment setting may be performed in such a manner that the sound quality is lowered.
- the content of the speaker setting update information is “ON” or “OFF” for using the subwoofer speaker.
- the use of the subwoofer speaker is “ON” or “OFF ”And“ ON ”or“ OFF ”combination of use of the tweeter speaker, and the determination result may be used as the content of the speaker setting update information.
- the crossover frequency of the network in the speaker system may be determined from the balance of all bands of the frequency characteristics indicated by the setting octave band information, and the determination result may be reflected in the setting of the audio device.
- the management device is provided with a storage unit that stores the adjustment information, and the management device derives the setting update information.
- the acoustic device may include a storage unit that stores the adjustment information, and derive the setting update information based on the designated attribute information.
- the content of the designated attribute information is information related to the music to be played.
- the contents of the designated attribute information may be attributes such as the nationality of the user, the country or region where the user resides. In this case, it is possible to perform a sound adjustment process suitable for attributes such as the nationality of the user and the country or region where the user resides.
- the present invention is applied to an acoustic device arranged in a vehicle.
- the present invention can also be applied to an acoustic device arranged in a moving body other than the vehicle.
- the present invention can also be applied to an acoustic device disposed in a home.
- a part or all of the above management device is configured as a computer as a calculation means including a central processing unit (CPU: Central Processing Unit), and the above-described implementation is performed by executing a program prepared in advance on the computer. You may make it implement
- This program is recorded on a computer-readable recording medium such as a hard disk, CD-ROM, or DVD, and is read from the recording medium and executed by the computer.
- the program may be acquired in a form recorded on a portable recording medium such as a CD-ROM or DVD, or may be acquired in a form distributed via a network such as the Internet. Also good.
- a part or all of the above-described acoustic device (excluding the input unit and the sound output unit) is configured as a computer as a calculation means including a central processing unit (CPU: Central Processing Unit), and a program prepared in advance is You may make it implement
- This program is recorded on a computer-readable recording medium such as a hard disk, CD-ROM, or DVD, and is read from the recording medium and executed by the computer.
- the program may be acquired in a form recorded on a portable recording medium such as a CD-ROM or DVD, or may be acquired in a form distributed via a network such as the Internet. Also good.
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- Acoustics & Sound (AREA)
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
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Abstract
Description
110 … 送受信部(管理装置の第1取得部、第2取得部)
120 … 記憶部
130 … 生成部
140 … 導出部
200 … 音響装置
239 … 制御部
270 … 属性情報取得部(音響装置の第1取得部)
280 … 送受信部(送信部、音響装置の第2取得部)
図2には、一実施形態に係る管理装置100及び音響装置200の概略的な構成がブロック図にて示されている。本実施形態では、管理装置100は、例えば、建屋内の固定的な位置に配置されている。また、音響装置200は、車両内に配置されている。そして、管理装置100と音響装置200とは、ネットワークを介して、通信可能となっている。また、管理装置100と楽曲コンテンツサーバ300とは、ネットワークを介して、通信可能となっている。
上記の管理装置100の構成について、説明する。
上記の音響装置200の構成について、説明する。
調整設定部230の構成について、説明する。
以上のようにして構成された管理装置100及び音響装置200が協働して実行する動作について、音響装置200による楽曲再生処理及び管理装置100による音響調整管理処理(設定更新情報の導出処理)に主に着目して説明する。
まず、音響装置200による楽曲再生処理について、説明する。
次に、管理装置100による設定更新情報の導出処理について、説明する。
本発明は、上記の実施形態に限定されるものではなく、様々な変形が可能である。
Claims (17)
- 地域情報を含む属性情報と、楽曲の再生に関する調整情報とを関連付けて記憶する記憶部と;
音響装置から、指定された地域に関する指定地域情報を取得する第1取得部と;
前記記憶部に記憶されている情報及び前記指定地域情報に基づいて、前記音響装置の設定更新情報を導出し、前記設定更新情報を前記音響装置に送信する導出部と;
を備えることを特徴とする管理装置。 - 楽曲情報と、前記楽曲情報に対応付けられている楽曲属性情報とを取得する第2取得部と;
前記第2取得部により取得された楽曲情報を解析して前記楽曲情報の特性を示す楽曲特性情報を生成し、前記楽曲特性情報及び前記第2取得部により取得された楽曲属性情報に基づいて、前記属性情報と関連付けて前記記憶部に記憶される前記調整情報を生成する生成部と;を更に備える、
ことを特徴とする請求項1に記載の管理装置。 - 前記指定地域情報に含まれる指定地域は、前記音響装置において再生される楽曲に対応する地域である、ことを特徴とする請求項1に記載の管理装置。
- 前記調整情報は、周波数特性に関する情報であり、
前記導出部は、前記指定地域情報に対応する前記周波数特性を反映した音質更新情報を、前記設定更新情報として導出する、
ことを特徴とする請求項1に記載の管理装置。 - 前記調整情報は、所定の楽器の出現頻度であり、
前記導出部は、前記指定地域情報に対応する前記所定の楽器の出現頻度を反映した音質更新情報を、前記設定更新情報として導出する、
ことを特徴とする請求項1に記載の管理装置。 - 前記調整情報は、周波数特性に関する情報であり、
前記導出部は、前記指定地域情報に対応する前記周波数特性を反映した最適スピーカ構成の更新情報を、前記設定更新情報として導出する、
ことを特徴とする請求項1に記載の管理装置。 - 前記調整情報は、左音声信号と左音声信号との位相差であり、
前記導出部は、前記指定地域情報に対応する前記位相差を反映した拡がり感付加処理の更新情報を、前記設定更新情報として導出する、
ことを特徴とする請求項1に記載の管理装置。 - 前記属性情報には、作製年情報及びジャンル情報の少なくとも一方が含まれ、
前記第1取得部は、前記音響装置において再生される楽曲の作製年情報及びジャンル情報の少なくとも一方を更に取得し、
前記導出部は、前記指定地域情報に加え、前記第1取得部により取得された前記作成年情報及びジャンル情報の少なくとも一方に更に基づいて、前記更新設定情報を導出する、
ことを特徴とする請求項1に記載の管理装置。 - 再生する楽曲に対応する地域に関する地域情報を含む属性情報を取得する第1取得部と;
前記属性情報を指定属性情報として、管理装置へ送信する送信部と;
前記指定属性情報に基づいて導出された楽曲の再生に関する設定更新情報を、前記管理装置から取得する第2取得部と;
前記第2取得部により取得された前記設定更新情報に基づいて、前記楽曲の再生を制御する制御部と;
を備えることを特徴とする音響装置。 - 前記指定属性情報には指定地域が含まれ、前記指定地域は、再生する楽曲に対応する地域である、ことを特徴とする請求項9に記載の音響装置。
- 前記指定属性情報には、前記再生する楽曲の作製年情報及びジャンル情報の少なくとも一方が含まれる、ことを特徴とする請求項9に記載の音響装置。
- 地域情報を含む属性情報と、楽曲の再生に関する調整情報とを関連付けて記憶する記憶部を備える管理装置において使用される音響調整管理方法であって、
音響装置から、指定された地域に関する指定地域情報を取得する取得工程と;
前記記憶部に記憶されている情報及び前記指定地域情報に基づいて、前記音響装置の設定更新情報を導出する導出工程と;
前記設定更新情報を前記音響装置に送信する送信工程と;
を備えることを特徴とする音響調整管理方法。 - 管理装置が有するコンピュータに、請求項12に記載の音響調整管理方法を実行させる、ことを特徴とする音響調整管理プログラム。
- 管理装置が有するコンピュータにより読み取り可能に、請求項13に記載の音響調整管理プログラムが記録されている、ことを特徴とする記録媒体。
- 楽曲を再生する音響装置において使用される楽曲再生方法であって、
再生する楽曲に対応する地域に関する地域情報を含む属性情報を取得する第1取得工程と;
前記属性情報を指定属性情報として、管理装置へ送信する送信工程と;
前記指定属性情報に基づいて導出された楽曲の再生に関する設定更新情報を、前記管理装置から取得する第2取得工程と;
前記第2取得工程において取得された前記設定更新情報に基づいて、前記楽曲の再生を制御する制御工程と;
を備えることを特徴とする楽曲再生方法。 - 音響装置が有するコンピュータに、請求項15に記載の楽曲再生方法を実行させる、ことを特徴とする楽曲再生プログラム。
- 音響装置が有するコンピュータにより読み取り可能に、請求項16に記載の楽曲再生プログラムが記録されている、ことを特徴とする記録媒体。
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JP2017507184A JPWO2016151721A1 (ja) | 2015-03-23 | 2015-03-23 | 管理装置及び音響調整管理方法、並びに、音響装置及び楽曲再生方法 |
PCT/JP2015/058678 WO2016151721A1 (ja) | 2015-03-23 | 2015-03-23 | 管理装置及び音響調整管理方法、並びに、音響装置及び楽曲再生方法 |
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US7273978B2 (en) * | 2004-05-07 | 2007-09-25 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Device and method for characterizing a tone signal |
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US9319019B2 (en) * | 2013-02-11 | 2016-04-19 | Symphonic Audio Technologies Corp. | Method for augmenting a listening experience |
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