CN105307086A - Method and system for simulating surround sound for two-channel headset - Google Patents
Method and system for simulating surround sound for two-channel headset Download PDFInfo
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- CN105307086A CN105307086A CN201510795023.0A CN201510795023A CN105307086A CN 105307086 A CN105307086 A CN 105307086A CN 201510795023 A CN201510795023 A CN 201510795023A CN 105307086 A CN105307086 A CN 105307086A
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Abstract
The invention relates to a method and a system for simulating surround sounds for a two-channel headset. The method specifically comprises the following steps of: step 1, acquiring headset position information and transmitted audio information; step 2, processing the audio information according to the headset position information; step 3, outputting the processed audio information through the two-channel headset. The method and the system realize the effect of surround sounds through simple headset simulation, thus, the cost is reduced greatly; and the method and the system are used in games and daily life, users can have immersive experience.
Description
Technical field
The present invention relates to a kind of dual-channel headphone analog loop around stereosonic method and system.
Background technology
In real life, people can pass through rotation head, mobile space location aware sound source.Mono headset a: sound channel, with a microphone pickup sound, carries out the process of playback, is referred to as monophony with a loud speaker.Monophony refers to be recorded it by recording equipment from unified after the audio signal mixing of different azimuth, then is reset by an earphone or audio amplifier.In monaural sound appliances, you can only experience the size of sound, the front and back position of music and tone color, volume, and can not experience sound and from left to right wait horizontal movement.Two-channel sound system refers to that to the source of sound of voice pickup (recording) be left and right two-way, and stereo set amplifies sound source signal, transmit and playback is also two-way, to embody the left and right direction feeling of sound, namely stereo.
Existing dual-channel headphone is low due to cost, and compare again the ears physiological structure of laminating people, popularization degree is higher, but can not sound position in space that is virtually reality like reality and level.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of lower cost and solves existing dual-channel headphone and play sound the dual-channel headphone analog loop of spatial impression and level problem around stereosonic method and system.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of dual-channel headphone analog loop, around stereosonic method, specifically comprises the following steps:
Step 1: the audio-frequency information obtaining earphone position information and transmission;
Step 2: the process according to earphone position information, audio-frequency information being carried out to track extraction and mixing;
Step 3: the audio-frequency information after process is exported by dual-channel headphone.
The invention has the beneficial effects as follows: by simple earphone simulated implementation surround sound effect, greatly reduce cost, be applied to game and daily in, user has impression on the spot in person.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described step 2 specifically comprises the following steps:
Step 2.1: the track in audio frequency is extracted as multiple track according to direction and frequency response according to earphone position information;
Step 2.2: respectively the track that each extraction obtains is mixed according to after earphone position information adjustment volume, obtain the audio-frequency information after processing.
Track: (Baidupedia) track is exactly parallel one by one " track " seen in sequencer software.Every bar track respectively defines the attribute of this track, as the tone color of track, and bank, port number, input/output end port, volume etc.
Further, gyroscope built-in in earphone and electronic compass is adopted to carry out judging that earphone change in location in space obtains earphone position information in described step 1;
Or judge that earphone change in location in space obtains earphone position information by external device.
Gyroscope: angular movement checkout gear, now volume production, can judgment object angle in space and change in location.(drawing from Baidupedia) gyroscope is around the angular movement checkout gear of one or two axle being orthogonal to the axis of rotation with the responsive housing relative inertness space of the moment of momentum of high-speed rotator.The angular movement checkout gear utilizing other principles to make plays the also title gyroscope of said function.
Electronic compass: (drawing from Baidupedia), electronic compass was widely used as navigation instrument or attitude transducer in modern technologies condition also known as digital compass.Electronic compass and tradition pointer-type and balance that shelf structure compass phase specific energy consumption is low, volume is little, lightweight, precision is high, Miniaturized, its output signal can realize digital-scroll technique by process, not only can be used to refer to, its digital signal directly can deliver to autopilot, controls the manipulation of boats and ships.At present, widely use three axle strapdown reluctance type Digital Magnetic Compass, this compass have anti-shake and vibration resistance, course precision higher, interference field had to electronic compensation, can be integrated in control loop and carry out the advantages such as data link, be thus widely used in the fields such as Aeronautics and Astronautics, robot, navigation, vehicular autonomous navigation.
Further, described external device comprises bluetooth equipment or WIFI equipment etc.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of dual-channel headphone analog loop, around stereosonic system, comprises audio collection module, multitone rail adjustment module and output module;
Described audio collection module is for obtaining the audio-frequency information of earphone position information and transmission;
Described multitone rail adjustment module is used for the process according to earphone position information, audio-frequency information being carried out to track extraction and mixing, and the audio-frequency information after process is sent to output module;
Described output module is used for the audio-frequency information after by process and is exported by dual-channel headphone.
The invention has the beneficial effects as follows: by simple earphone simulated implementation surround sound effect, greatly reduce cost, be applied to game and daily in, user has impression on the spot in person.
On the basis of technique scheme, the present invention can also do following improvement.
Further, the track in audio frequency is extracted as multiple track according to direction and frequency response according to earphone position information by described multitone rail adjustment module; Respectively the track that each extraction obtains is mixed according to after earphone position information adjustment volume, and the audio-frequency information after process is sent to output module.
Further, described audio collection module adopts built-in gyroscope and electronic compass in earphone to carry out judging that earphone change in location in space obtains earphone position information;
Or judge that earphone change in location in space obtains earphone position information by external device.
Further, described external device comprises bluetooth equipment or WIFI equipment etc.
Accompanying drawing explanation
Fig. 1 is that a kind of dual-channel headphone analog loop of the present invention is around stereosonic method flow diagram;
Fig. 2 is that a kind of dual-channel headphone analog loop of the present invention is around stereosonic system architecture diagram;
Fig. 3 is the location diagram of gyroscope in earphone in embodiment of the present invention;
Fig. 4 is the track extraction schematic diagram described in the specific embodiment of the invention;
Fig. 5 is track schematic diagram when earphone rotates in space in the specific embodiment of the invention;
Fig. 6 is track schematic diagram when earphone moves in space in the specific embodiment of the invention;
Fig. 7 is the track schematic diagram of example 2 of the present invention;
Fig. 8 is when earphone turns clockwise the track schematic diagram of 60 degree in example 2 of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1, audio collection module, 2, multitone rail adjustment module, 3, output module.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, for a kind of dual-channel headphone analog loop of the present invention is around stereosonic method, specifically comprise the following steps:
Step 1: the audio-frequency information obtaining earphone position information and transmission;
Step 2: the process according to earphone position information, audio-frequency information being carried out to track extraction and mixing;
Step 3: the audio-frequency information after process is exported by dual-channel headphone.
Described step 2 specifically comprises the following steps:
Step 2.1: the track in audio frequency is extracted as multiple track according to direction and frequency response according to earphone position information;
Step 2.2: respectively the track that each extraction obtains is mixed according to after earphone position information adjustment volume, obtain the audio-frequency information after processing.
Gyroscope built-in in earphone and electronic compass is adopted to carry out judging that earphone change in location in space obtains earphone position information in described step 1; The position of gyroscope in earphone as shown in Figure 3;
Or judge that earphone change in location in space obtains earphone position information by external device.
Described external device comprises bluetooth equipment or WIFI equipment etc.
As shown in Figure 2, for a kind of dual-channel headphone analog loop of the present invention is around stereosonic system, audio collection module 1, multitone rail adjustment module 2 and output module 3 is comprised;
Described audio collection module 1 is for obtaining the audio-frequency information of earphone position information and transmission;
Audio-frequency information after process for carrying out the process of track extraction and mixing to audio-frequency information according to earphone position information, and is sent to output module 3 by described multitone rail adjustment module 2;
Described output module 3 is for exporting the audio-frequency information after process by dual-channel headphone.
Described multitone rail adjustment module 2 according to earphone position information by the track in audio frequency according to direction and frequency response be extracted as multiple track (point out in the embodiment of the present invention into bass, front left, front in, front right, the middle right side, rear right, rear left and middle left eight tracks); Respectively each track is mixed (described mixing mixes volume) according to after earphone position information adjustment volume, and the audio-frequency information after process is sent to output module.
Described audio collection module 1 adopts gyroscope built-in in earphone and electronic compass to carry out judging that earphone change in location in space obtains earphone position information;
Or judge that earphone change in location in space obtains earphone position information by external device.
Described external device comprises bluetooth equipment or WIFI equipment etc.
8 tracks, softwares are had only to regulate volume for sound source below.Each cylindricality represents a track, and cylindricality height represents volume.
As shown in Figure 4, the track in audio frequency is extracted as bass, front left, front in, front right, the middle right side, rear right, rear left, a middle left side, 8 tracks, after initialization, each track volume is 80$.After adjusting volume to each track respectively, mixed transport is to left and right earphone.
As shown in Figure 5, (slightly rotate clockwise) when earphone has change in location in space,
When earphone turn clockwise 30 degree time bass 80%, front left 85%, before in 90%, front right 85%, middle right 80%, rear right 75%, rear left 80%, middle left 85% mixed transport is to the left side track of earphone, bass 80%, front left 75%, before in 85%, front right 90%, middle right 85%, rear right 75%, rear left 70%, middle left 75% mixed transport is to the right track of earphone, for the track mixed method that the present invention proposes, this track mixed process creates impact according to the dynamic track on extracting of earphone, very changing of different track is affected according to this, track after change is mixed and imports earphone into.
As shown in Figure 6, earphone has change in location (overall space displacement, as: initialization points mobile 3 meters backward) in space.
(1): obtain the initial position of earphone and towards.
(2): according to earphone position change information the track in audio frequency is extracted as bass, front left, front in, front right, the middle right side, rear right, rear left, a middle left side.(be 7.1 sound channels for source of sound) 8 tracks, respectively to mixed transport after each track adjustment volume to left and right earphone.See Fig. 4.
(3): algorithm example:
After initialization, bass, front left, front in, front right, the middle right side, rear right, rear left, middle left volume be 80%, when earphone turn clockwise 30 degree time bass 80%, front left 85%, front in 90%, front right 85%, middle right 80%, rear right 75%, rear left 80%, middle left 85% mixed transport to the left side track of earphone, bass 80%, front left 75%, front in 85%, front right 90%, middle right 85%, rear right 75%, rear left 70%, middle left 75% mixed transport be to the right track of earphone.See accompanying drawing 5.
(4): multitone rail adjustment module can in two places:
A: computer software is as a point rail volume adjusting module, and according to earphone change in space, the volume of eight tracks in real time in adjustment audio frequency and tone color, be mixed into two channel transfer in left and right to earphone.
B: earphone carries a point rail volume adjusting module, according to earphone change in space, the volume of eight tracks in real time in adjustment audio frequency and tone color, be mixed into two channel transfer in left and right to earphone.
As shown in Figure 7, a kind of dual-channel headphone analog loop of the present invention is around stereosonic method example 2, biphone simulates 4 sound channel implementations, and sound is divided into left front, left back, right front, right back, and each 25% mixing of lower four tracks of normal condition exports left and right loudspeaker to as shown in Figure 7.
As shown in Figure 8, in example 2, when earphone turn clockwise 60 degree time, left front and right back volume is heightened, left back and right front turning down sound volume.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. dual-channel headphone analog loop is around a stereosonic method, it is characterized in that, specifically comprises the following steps:
Step 1: the audio-frequency information obtaining earphone position information and transmission;
Step 2: the process according to earphone position information, audio-frequency information being carried out to track extraction and mixing;
Step 3: the audio-frequency information after process is exported by dual-channel headphone.
2. a kind of dual-channel headphone analog loop according to claim 1 is around stereosonic method, and it is characterized in that, described step 2 specifically comprises the following steps:
Step 2.1: the track in audio frequency is extracted as multiple track according to direction and frequency response according to earphone position information;
Step 2.2: respectively the track that each extraction obtains is mixed according to after earphone position information adjustment volume, obtain the audio-frequency information after processing.
3. a kind of dual-channel headphone analog loop according to claim 1 and 2 is around stereosonic method, it is characterized in that, in described step 1, adopt gyroscope built-in in earphone and electronic compass to carry out judging that earphone change in location in space obtains earphone position information;
Or judge that earphone change in location in space obtains earphone position information by external device.
4. a kind of dual-channel headphone analog loop according to claim 3 is around stereosonic method, it is characterized in that, described external device comprises bluetooth equipment or WIFI equipment.
5. dual-channel headphone analog loop is around a stereosonic system, it is characterized in that, comprises audio collection module, multitone rail adjustment module and output module;
Described audio collection module is for obtaining the audio-frequency information of earphone position information and transmission;
Described multitone rail adjustment module is used for the process according to earphone position information, audio-frequency information being carried out to track extraction and mixing, and the audio-frequency information after process is sent to output module;
Described output module is used for the audio-frequency information after by process and is exported by dual-channel headphone.
6. a kind of dual-channel headphone analog loop according to claim 5 is around stereosonic system, it is characterized in that, the track in audio frequency is extracted as multiple track according to direction and frequency response according to earphone position information by described multitone rail adjustment module; Respectively the track that each extraction obtains is mixed according to after earphone position information adjustment volume, and the audio-frequency information after process is sent to output module.
7. a kind of dual-channel headphone analog loop according to claim 5 or 6 is around stereosonic system, it is characterized in that, described audio collection module adopts built-in gyroscope and electronic compass in earphone to carry out judging that earphone change in location in space obtains earphone position information;
Or judge that earphone change in location in space obtains earphone position information by external device.
8. a kind of dual-channel headphone analog loop according to claim 7 is around stereosonic system, it is characterized in that, described external device comprises bluetooth equipment or WIFI equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510795023.0A CN105307086A (en) | 2015-11-18 | 2015-11-18 | Method and system for simulating surround sound for two-channel headset |
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| CN201510795023.0A CN105307086A (en) | 2015-11-18 | 2015-11-18 | Method and system for simulating surround sound for two-channel headset |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105898656A (en) * | 2016-04-28 | 2016-08-24 | 青岛歌尔声学科技有限公司 | Audio processing unit, headset, virtual reality equipment, and audio processing method |
| CN106412751A (en) * | 2016-11-14 | 2017-02-15 | 惠州Tcl移动通信有限公司 | Earphone capable of discriminating direction and realization method thereof |
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| CN102855116A (en) * | 2011-06-13 | 2013-01-02 | 索尼公司 | Information processing apparatus, information processing method, and program |
| CN104734829A (en) * | 2013-12-20 | 2015-06-24 | 大北公司 | An audio communication system with merging and demerging communications zones |
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Patent Citations (5)
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| CN1108083C (en) * | 1995-05-22 | 2003-05-07 | 日本胜利株式会社 | Headphone reproducing apparatus |
| WO2001055833A1 (en) * | 2000-01-28 | 2001-08-02 | Lake Technology Limited | Spatialized audio system for use in a geographical environment |
| US20020164037A1 (en) * | 2000-07-21 | 2002-11-07 | Satoshi Sekine | Sound image localization apparatus and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105898656A (en) * | 2016-04-28 | 2016-08-24 | 青岛歌尔声学科技有限公司 | Audio processing unit, headset, virtual reality equipment, and audio processing method |
| CN106412751A (en) * | 2016-11-14 | 2017-02-15 | 惠州Tcl移动通信有限公司 | Earphone capable of discriminating direction and realization method thereof |
| CN106412751B (en) * | 2016-11-14 | 2019-08-20 | 惠州Tcl移动通信有限公司 | A kind of earphone taken one's bearings and its implementation |
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Application publication date: 20160203 |