JPH0946400A - Voice input and output device provided with automatic adjusting function of sound volume - Google Patents
Voice input and output device provided with automatic adjusting function of sound volumeInfo
- Publication number
- JPH0946400A JPH0946400A JP19133395A JP19133395A JPH0946400A JP H0946400 A JPH0946400 A JP H0946400A JP 19133395 A JP19133395 A JP 19133395A JP 19133395 A JP19133395 A JP 19133395A JP H0946400 A JPH0946400 A JP H0946400A
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- JP
- Japan
- Prior art keywords
- volume
- voice
- transmitting
- measuring
- transmission volume
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電話回線などに音声を
入出力する音声入出力装置に関し、特に電話回線に出力
する音量を調整する音声出力レベル自動調整機能を備え
た音声入出力装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice input / output device for inputting / outputting voice to / from a telephone line, and more particularly to a voice input / output device having a voice output level automatic adjusting function for adjusting a volume output to a telephone line. .
【０００２】[0002]
【従来の技術】従来、電話回線に音声を入出力する音声
入出力装置は、異なる地点間を回線で結び、その地点間
での音声のやりとりをするために用いられている。その
音声入出力装置は、受話器、ヘッドセット、マイクとス
ピーカー、等で構成される。2. Description of the Related Art Conventionally, a voice input / output device for inputting / outputting voice to / from a telephone line has been used for connecting different points with a line and exchanging voice between the points. The audio input / output device includes a handset, a headset, a microphone and a speaker, and the like.
【０００３】この種音声入出力装置において、音声通信
をするときに、相手にどれくらいの音量で音が出ている
のかわからないという問題点がある。特に、マイクとス
ピーカーを用いた場合、毎回自分とマイクとの距離が異
なると、毎回相手に伝わる音量が異なることになる。そ
のため、相手との会話の中で自分の声の大きさを探り、
マイクとの距離や、回線への出力のボリュームを変更す
る、等の操作の必要が出てくる。In this type of voice input / output device, there is a problem that at the time of voice communication, it is impossible to know how loud the other party is making a sound. In particular, when a microphone and a speaker are used, if the distance between the user and the microphone is different each time, the volume transmitted to the other party is different each time. Therefore, in conversation with the other person, you can find out how loud your voice is,
It will be necessary to change the distance to the microphone and the volume of the output to the line.
【０００４】それを防ぐためには、送話音量を適切な大
きさに増幅あるいは減衰すればよい。例えば、特開平２
−１９２２９４号公報に開示されている送受信音声レベ
ル変換器では、通話の開始を検出し、一定時間の平均音
声レベルを測定し、その値と規定値を比較して適切な増
幅率を求める音声調整方法が採用される。To prevent this, it is sufficient to amplify or attenuate the transmission sound volume to an appropriate level. For example, Japanese Patent Laid-Open No.
In the transmission / reception voice level converter disclosed in Japanese Patent Laid-Open No. 192294, voice adjustment is performed by detecting the start of a call, measuring an average voice level for a certain period of time, and comparing the value with a prescribed value to obtain an appropriate amplification factor. The method is adopted.
【０００５】[0005]
【発明が解決しようとする課題】しかし、その方法で
は、通話中に音声の平均音量が変化した場合、音量を調
整する必要がある。However, in that method, when the average volume of voice changes during a call, it is necessary to adjust the volume.
【０００６】それを防ぐためには、通話中、常に送話音
量を適切な大きさに増幅あるいは減衰すればよい。例え
ば、特開昭６２−２７８８５８号公報に開示されている
電話機では、上限閾値より大きい音は小さくし、下限閾
値より小さい音は大きくする音声調整方法が採用されて
いる。しかし、その方法では、閾値を越えた音だけに調
整が働き、違和感のある音になってしまう。さらに、音
声全体が閾値を越えている場合は、全体的に平坦な音声
になり、感情・意志がうまく伝わらないと言う問題が発
生する。In order to prevent this, it is necessary to always amplify or attenuate the transmission volume to an appropriate level during a call. For example, the telephone disclosed in Japanese Unexamined Patent Publication No. 62-278858 employs a voice adjusting method in which sounds larger than the upper threshold are reduced and sounds smaller than the lower threshold are enlarged. However, in that method, the adjustment works only on the sound exceeding the threshold value, and the sound becomes uncomfortable. Further, when the whole voice exceeds the threshold, the voice becomes flat as a whole, and the problem that the emotion / will cannot be transmitted well occurs.
【０００７】このような点に鑑み本発明は、通信時の入
力音声の大きさの変化や回線の状態による減衰率の変化
等が起こり、相手に伝わる音声の大きさが変化したとき
に、適切な音量で回線に出力することを可能とする音声
出力レベル自動調整機能を備えた音声入出力装置を提供
することを目的とする。In view of such a point, the present invention is suitable when the volume of the voice transmitted to the other party changes due to a change in the volume of the input voice during communication or a change in the attenuation rate due to the state of the line. It is an object of the present invention to provide a voice input / output device having a voice output level automatic adjustment function that enables output to a line at a constant volume.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に、本発明の音声出力レベル自動調整方式は、ある特定
の言葉を受信するごとに送話音量を最適に調整すること
を特徴とする。例えば、通話の開始時にはほとんどの場
合「もしもし」という言葉が発せられるので、「もしも
し」を比較する言葉として登録しておけば、通話開始時
に送話音量の自動調整が行われる。相手に伝わる音量が
小さくなって聞き取りづらくなったときも、たいていの
場合、相手が「もしもし」と言ってくるので、その言葉
をこちら側が検知して、こちら側の送話音量レベルを上
げることで、適切な音量が相手に届くことになる。その
他いくつかの言葉を登録しておくことで、必要なときに
自動的に送話音量が調整される。たとえ、会話の中で偶
然それらの言葉が現れたとしても、たいていの場合、音
量の平均レベルに大きな変化はないので、増幅率・減衰
率が大きく変化することはないと考えられる。In order to achieve the above object, the automatic audio output level adjusting method of the present invention is characterized in that the transmission volume is optimally adjusted each time a specific word is received. . For example, the word "Hello" is often issued at the beginning of a call, so if "Hello" is registered as a comparison word, the transmission volume is automatically adjusted at the start of the call. Even when the volume transmitted to the other party becomes low and it becomes difficult to hear, in most cases, the other party will say "Hello", so this side can detect that word and raise the transmission volume level of this side. , Appropriate volume will reach the other party. By registering some other words, the transmission volume is automatically adjusted when necessary. Even if those words happen to occur in the conversation, it is considered that the amplification factor and the attenuation factor do not change greatly in most cases because the average volume level does not change significantly.
【０００９】具体的に、本発明の音声出力レベル自動調
整機能付き音声入出力装置は、電話回線との間で音声信
号を送受信する回線接続手段と、送話者の音声を電気信
号に変換する送話器と、電話回線から受信した音声信号
を解析し音韻の特徴を抽出する音声解析手段と、抽出し
た特徴をある特定の言葉の音韻の特徴と比較し、一致す
るか否かを判定する音声比較手段と、一致すると判定さ
れたときに送話器からの送話音量を測定する送話音量測
定手段と、測定された送話音量のレベルに応じて電話回
線に送出する送話音量を調整する送話音量調整手段と、
を含む。Specifically, the voice input / output device with the automatic voice output level adjusting function of the present invention converts the voice of the talker into an electric signal and a line connecting means for transmitting / receiving a voice signal to / from a telephone line. A transmitter, a voice analysis means for analyzing a voice signal received from a telephone line and extracting a phoneme feature, and comparing the extracted feature with a phoneme feature of a specific word to determine whether or not they match. The voice comparison means, the transmission volume measuring means for measuring the transmission volume from the transmitter when it is determined that they match, and the transmission volume to be transmitted to the telephone line according to the level of the measured transmission volume. A transmission volume adjusting means for adjusting,
including.
【００１０】送話音量測定手段は、送話音量の平均値を
求めても良い。この場合、送話音量調整手段は、送話音
量を測定する時間をカウントする時間測定手段と、測定
時間内の送話音量の平均値と規定値を比較し、比較結果
に応じて送話音量を増幅または減衰させる調整手段とを
有する。The transmitting volume measuring means may obtain an average value of the transmitting volume. In this case, the transmission volume adjusting means compares the transmission volume with the time measurement means for counting the time for measuring the transmission volume and the average value of the transmission volume within the measurement time and the specified value, and according to the comparison result. And an adjusting means for amplifying or attenuating.
【００１１】[0011]
【作用】上記のように構成することによって本発明は、
回線接続手段で受信した音声信号を常に音声解析手段で
解析し音韻の特徴を抽出する。抽出された特徴（音声パ
ターン）は、音声比較手段であらかじめ登録してある言
葉の特徴と比較され、同一の特徴が検出された場合、送
話音量測定手段に音量を調整する指示が送られる。送話
音量測定手段では送話器から送られる音声信号の音量が
ある一定以上であるときは、こちら側がしゃべっている
と判断し、例えば、その時の平均レベルを求める。送話
音量の平均レベルがある規定値になるように増幅率ある
いは減衰率が計算され、送話音量調整手段では、送話器
から送られてくる音声信号を増幅あるいは減衰させ、回
線接続手段を通して回線へ出力する。これにより、ある
特定の言葉を受信する毎に、送話音量が最適に調整さ
れ、特定の言葉として、音声の変化によって発せられる
言葉や通話の始めに発せられる言葉、等を選択すること
で、相手に伝わる音声が変化したときに適切な送話音声
に調整される。With the above-mentioned structure, the present invention provides
The voice signal received by the line connection means is always analyzed by the voice analysis means to extract phoneme features. The extracted feature (speech pattern) is compared with the feature of the word registered in advance by the voice comparison unit, and if the same feature is detected, an instruction to adjust the volume is sent to the transmission volume measuring unit. When the volume of the voice signal transmitted from the transmitter is above a certain level, the transmission volume measuring means determines that this side is speaking and, for example, obtains the average level at that time. The amplification factor or attenuation factor is calculated so that the average level of the transmission volume becomes a certain specified value, and the transmission volume adjustment means amplifies or attenuates the voice signal sent from the transmitter, and then the line connection means is used. Output to the line. With this, each time a certain specific word is received, the transmission volume is optimally adjusted, and by selecting, as the specific word, a word emitted by a change in voice, a word emitted at the beginning of a call, or the like, When the voice transmitted to the other party changes, it is adjusted to the appropriate transmission voice.
【００１２】[0012]
【実施例】次に、本発明の実施例について図面を参照し
て詳細に説明する。Next, embodiments of the present invention will be described in detail with reference to the drawings.
【００１３】図１は本発明の実施例の音声入出力装置を
示すブロック図であり、図２は図１の音声入出力装置の
動作を示すフローチャートである。FIG. 1 is a block diagram showing a voice input / output device of an embodiment of the present invention, and FIG. 2 is a flow chart showing the operation of the voice input / output device of FIG.
【００１４】図１に示すように、音声入出力装置は、電
話回線との間で音声信号を送受信する回線接続回路１
と、送話者の音声を電気信号に変換する送話器２と、電
話回線から受信した音声信号を音に変換する受話器３
と、電話回線から受信した音声信号を解析し音韻の特徴
を抽出する音声解析回路４と、その特徴を予め登録され
たある特定の言葉の音韻の特徴と比較し、一致するか否
かを判定する音声比較回路５と、一致すると判定された
とき送話器２からの送話音量を測定する送話音量測定回
路６と、送話音量測定回路６の送話音量測定時間をカウ
ントする時間測定回路７と、測定時間内の送話音量と規
定値を比較し増幅率あるいは減衰率を計算する増幅率・
減衰率計算回路８と、計算された増幅率あるいは減衰率
に応じて送話音量を増幅または減衰させる送話音量調整
回路９とを備えている。As shown in FIG. 1, the voice input / output device is a line connection circuit 1 for transmitting / receiving a voice signal to / from a telephone line.
, A transmitter 2 for converting a speaker's voice into an electric signal, and a receiver 3 for converting a voice signal received from a telephone line into a sound
And a voice analysis circuit 4 for extracting a phoneme feature by analyzing a voice signal received from a telephone line, and comparing the feature with a phoneme feature of a specific word registered in advance to determine whether or not they match. Voice comparison circuit 5, a transmission volume measurement circuit 6 that measures the transmission volume from the transmitter 2 when it is determined that they match, and a time measurement that counts the transmission volume measurement time of the transmission volume measurement circuit 6. Amplification factor that calculates the amplification factor or attenuation factor by comparing the circuit 7 and the transmission volume within the measurement time with the specified value.
An attenuation rate calculation circuit 8 and a transmission volume adjusting circuit 9 for amplifying or attenuating the transmission volume according to the calculated amplification rate or attenuation rate are provided.
【００１５】次に、図２を用いて、図１の実施例の動作
を説明する。通話開始後（ステップ１０１；以下及び図
２ではＳ１０１と記述する）、回線接続回路１によって
受信された音声信号は、受話器３に送られて音として出
力されると共に、常に、音声解析回路４で解析され、音
韻の特徴が抽出される（Ｓ１０２）。具体的には、次の
ような方法で音韻の特徴が抽出される。まず受信音声を
ある時間単位に分割し、それぞれに対してフーリエ変換
をかけ、パワースペクトルを求める。次にパワースペク
トルの対数をとり、フーリエ逆変換をかけ、その低域成
分をフーリエ変換すると、音韻の特徴を表すパワースペ
クトルの包絡線が得られる。Next, the operation of the embodiment shown in FIG. 1 will be described with reference to FIG. After the call is started (step 101; hereinafter, described as S101 in FIG. 2), the voice signal received by the line connection circuit 1 is sent to the handset 3 and output as a sound, and the voice analysis circuit 4 always outputs the voice signal. The characteristics of the phoneme are analyzed and extracted (S102). Specifically, phonological features are extracted by the following method. First, the received voice is divided into certain time units, and Fourier transform is applied to each to obtain a power spectrum. Next, the logarithm of the power spectrum is taken, the inverse Fourier transform is applied, and the low-frequency component thereof is subjected to the Fourier transform, whereby the envelope of the power spectrum representing the characteristics of the phoneme is obtained.
【００１６】抽出された音韻の特徴（パワースペクトル
の包絡線）は、音声比較回路５で、あらかじめ登録して
ある言葉、例えば「もしもし」の音韻の特徴と比較され
（Ｓ１０３）、音韻の特徴の一致が検出された場合の比
較出力によって送話音量の調整を行う（Ｓ１０４）。The extracted phonological features (envelope of the power spectrum) are compared by the voice comparison circuit 5 with the phonological features of a pre-registered word, for example, "Hello" (S103), to determine the phonological features. The transmission volume is adjusted by the comparison output when a match is detected (S104).
【００１７】送話音量の調整では、まず送話音量測定回
路６が送話器２からの送話音量を測定し（Ｓ１０５）、
ある閾値以上の場合はしゃべっていると判断し（Ｓ１０
６）、その判断結果によって時間測定回路７が音量測定
時間のカウントを開始する（Ｓ１０７）。送話音量測定
回路６は、また時間測定回路７が規定時間までカウント
する間、送話音量の平均レベルを測定する（Ｓ１０８，
Ｓ１０９）。増幅率・減衰率計算回路８は、測定された
平均レベルを基に、その値がある規定値になるような増
幅率あるいは減衰率を計算し（Ｓ１１０）、その増幅率
あるいは減衰率で送話音量調整回路９は、送話器２から
の送話音量を調整する（Ｓ１１１）。In adjusting the transmission volume, first, the transmission volume measuring circuit 6 measures the transmission volume from the transmitter 2 (S105),
If it is equal to or more than a certain threshold, it is determined that the user is speaking (S10).
6) Then, the time measurement circuit 7 starts counting the sound volume measurement time according to the determination result (S107). The speaking volume measuring circuit 6 also measures the average level of the speaking volume while the time measuring circuit 7 counts up to the specified time (S108,
S109). Based on the measured average level, the amplification factor / attenuation factor calculation circuit 8 calculates an amplification factor or an attenuation factor such that the value becomes a predetermined value (S110), and transmits at the amplification factor or the attenuation factor. The volume adjustment circuit 9 adjusts the transmission volume from the transmitter 2 (S111).
【００１８】したがって、送話音量が小さくなった場
合、相手がこちらからの音声が聞きづらくなり、「もし
もし」を発声することで、音声比較回路５がその音声信
号の音韻の特徴を予め記憶された「もしもし」の音韻の
特徴との一致を検出し、これにより送話器２からの送話
音量を調整するよう動作する。Therefore, when the transmission volume becomes low, it becomes difficult for the other party to hear the voice from here, and when "Hello" is uttered, the voice comparison circuit 5 stores the phonological features of the voice signal in advance. A match with the phoneme characteristics of "Hello" is detected, and the operation is performed to adjust the transmission volume from the transmitter 2.
【００１９】[0019]
【発明の効果】以上説明したように本発明の音声出力レ
ベル自動調整機能を備えた音声入出力装置は、ある特定
の言葉を受信するごとに送話音量を最適に調整すること
で、通信時の入力音声の大きさの変化や回線の状態によ
る減衰率の変化等が起こり、相手に伝わる音声の大きさ
が変化したときに、適切な音量で回線に出力することを
可能とするという効果を有する。As described above, the voice input / output device equipped with the voice output level automatic adjustment function of the present invention adjusts the transmission volume optimally each time a certain specific word is received, so that it can be used during communication. When the volume of the voice input to the other party changes or the attenuation rate changes depending on the state of the line and the volume of the voice transmitted to the other party changes, it is possible to output to the line at an appropriate volume. Have.
【図１】本発明の実施例を示すブロック図である。FIG. 1 is a block diagram showing an embodiment of the present invention.
【図２】本発明の実施例の動作を示すフローチャートで
ある。FIG. 2 is a flowchart showing the operation of the embodiment of the present invention.
１ 回線接続回路 ２ 送話器 ３ 受話器 ４ 音声解析回路 ５ 音声比較回路 ６ 送話音量測定回路 ７ 時間測定回路 ８ 増幅率・減衰率計算回路 ９ 送話音声調整回路 1 line connection circuit 2 transmitter 3 receiver 4 voice analysis circuit 5 voice comparison circuit 6 transmission volume measurement circuit 7 time measurement circuit 8 amplification factor / attenuation ratio calculation circuit 9 transmission voice adjustment circuit
Claims (2)
回線接続手段と、送話者の音声を電気信号に変換する送
話器と、前記電話回線から受信した音声信号を解析し音
韻の特徴を抽出する音声解析手段と、抽出した特徴をあ
る特定の言葉の音韻の特徴と比較し、一致するか否かを
判定する音声比較手段と、一致すると判定されたときに
前記送話器からの送話音量を測定する送話音量測定手段
と、測定された送話音量のレベルに応じて前記電話回線
に送出する送話音量を調整する送話音量調整手段と、を
含む音声出力レベル自動調整機能を備えた音声入出力装
置。1. A line connecting means for transmitting and receiving a voice signal to and from a telephone line, a transmitter for converting a voice of a speaker into an electric signal, and a voice signal received from the telephone line for analyzing a phoneme. A voice analysis unit that extracts a feature, a voice comparison unit that compares the extracted feature with a feature of a phoneme of a specific word and determines whether or not there is a match, and a voice comparison unit from the transmitter when a match is determined. A voice output level automatic means including: a transmission volume measuring unit for measuring a transmission volume of the transmission line; and a transmission volume adjusting unit for adjusting a transmission volume to be transmitted to the telephone line according to the measured level of the transmission volume. Audio input / output device with adjustment function.
の平均値を求め、前記送話音量調整手段は、前記送話音
量を測定する時間をカウントする時間測定手段と、測定
時間内の送話音量の平均値と規定値を比較し、比較結果
に応じて送話音量を増幅または減衰する調整手段とを有
することを特徴とする請求項１の音声出力レベル自動調
整機能を備えた音声入出力装置。2. The transmitting volume measuring means obtains an average value of the transmitting volume, and the transmitting volume adjusting means measures time for measuring the transmitting volume, and a time measuring means for measuring the time. 2. The automatic output level adjusting function according to claim 1, further comprising: an adjusting unit that compares an average value of the transmission volume with a specified value and that amplifies or attenuates the transmission volume according to the comparison result. Audio input / output device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19133395A JPH0946400A (en) | 1995-07-27 | 1995-07-27 | Voice input and output device provided with automatic adjusting function of sound volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19133395A JPH0946400A (en) | 1995-07-27 | 1995-07-27 | Voice input and output device provided with automatic adjusting function of sound volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0946400A true JPH0946400A (en) | 1997-02-14 |
Family
ID=16272819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19133395A Pending JPH0946400A (en) | 1995-07-27 | 1995-07-27 | Voice input and output device provided with automatic adjusting function of sound volume |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0946400A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10499156B2 (en) | 2015-05-06 | 2019-12-03 | Xiaomi Inc. | Method and device of optimizing sound signal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02243045A (en) * | 1989-03-15 | 1990-09-27 | Toshiba Corp | Telephone system |
-
1995
- 1995-07-27 JP JP19133395A patent/JPH0946400A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02243045A (en) * | 1989-03-15 | 1990-09-27 | Toshiba Corp | Telephone system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10499156B2 (en) | 2015-05-06 | 2019-12-03 | Xiaomi Inc. | Method and device of optimizing sound signal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19980414 |