JP2000209698A - Sound correction device and mobile set with sound correction function - Google Patents
Sound correction device and mobile set with sound correction functionInfo
- Publication number
- JP2000209698A JP2000209698A JP642899A JP642899A JP2000209698A JP 2000209698 A JP2000209698 A JP 2000209698A JP 642899 A JP642899 A JP 642899A JP 642899 A JP642899 A JP 642899A JP 2000209698 A JP2000209698 A JP 2000209698A
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- JP
- Japan
- Prior art keywords
- age
- reception
- parameter
- correction
- audio
- 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.)
- Granted
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ＰＨＳや携帯電話
機等の移動無線通信機器、またはテレビやステレオ等の
オーディオ機器を使用する使用者の年齢による聴覚の変
化に合わせて、レシーバ等から出力される音声の周波数
特性及びレベルを補正できる音声補正装置及び音声補正
機能付き移動機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile radio communication device such as a PHS or a portable telephone, or an audio device such as a television or a stereo, which is output from a receiver or the like in accordance with a change in hearing due to the age of a user. TECHNICAL FIELD The present invention relates to a voice correction device and a mobile device with a voice correction function that can correct the frequency characteristics and level of a voice.
【０００２】[0002]
【従来の技術】近年、ＰＨＳや携帯電話機及び自動車電
話機など無線移動機の普及に伴い、これらの無線移動機
を利用する所有者は、聴感の良い若年者や成年者に限ら
ず、聴力の低下した年輩者にも多く利用され、所有され
るようになってきている。2. Description of the Related Art In recent years, with the spread of wireless mobile devices such as PHS, portable telephones, and automobile telephones, owners who use these wireless mobile devices are not limited to young people and adults with good hearing, but also suffer from hearing loss. It is increasingly used and owned by older people.
【０００３】一般に人間の持つ聴覚は、年齢が増加する
につれて鼓膜や耳小骨の関節、筋などの伝音系の硬化や
蝸牛基部の細胞の損失などにより音が聞こえくなくなる
レベル（以下、最小可聴限という）が上昇する。図７
は、年齢による最小可聴限の平均的な上昇を２０歳前後
の最小可聴限を基準にして表した受話特性を示してい
る。この図７から明らかなように、年齢が増加するにつ
れて、２ｋＨｚ以上の高域の受話音声に対する最小可聴
限が上昇し、移動機のレシーバから出力される音声の品
質、即ち明瞭度が悪化して音が聞き取り難くなる。特
に、４０歳から５０歳での最小可聴限の上昇が著しくな
ることが認められる。そこで、年齢による受話音声の最
小可聴限がゼロレベルまで下がるように受話音声の周波
数特性を補正してやれば、４０世代以上の使用者におい
てもレシーバからの音声を明瞭に聞き取ることが可能に
なる。[0003] In general, human hearing has a level (hereinafter referred to as minimum audible level) at which sound cannot be heard due to stiffening of the sound transmission system such as joints and muscles of the eardrum and ossicles and loss of cells at the base of the cochlea as the age increases. Limit) rises. FIG.
Shows the receiving characteristic in which the average increase in the minimum audibility due to age is represented on the basis of the minimum audibility around the age of 20 years. As is apparent from FIG. 7, as the age increases, the minimum audibility of the received voice in the high frequency range of 2 kHz or more increases, and the quality of voice output from the receiver of the mobile device, that is, the intelligibility deteriorates. Sound is difficult to hear. In particular, it is recognized that the minimum audibility increases significantly between the ages of 40 and 50. Therefore, if the frequency characteristics of the received voice are corrected so that the minimum audible limit of the received voice depending on the age falls to zero level, it becomes possible for users of 40 generations or more to clearly hear the voice from the receiver.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
ＰＨＳや携帯電話機などの移動機では、使用者の年齢に
よる聴覚変化を考慮して設計されていないのがほとんど
であり、このため、携帯電話機などの移動機のレシーバ
から出力される音声が聞き取り難かったり、音が小さく
感じたりする等の問題があった。また、近年では、上記
のような問題を解決するために、レシーバから出力され
る音声の周波数特性を補正するイコライザ機能を持たせ
た移動機が市販されている。しかし、このような移動機
に使用されるイコライザの設定パラメータは十分ではな
く、その結果、使用者の年齢による聴覚変化に合わせて
明瞭な音声が得られるように、音声の周波数特性等を調
整することが極めて面倒であるとともに、実用性にも乏
しいという問題がある。However, most mobile devices such as conventional PHSs and mobile phones are not designed in consideration of changes in hearing due to the age of the user. However, there is a problem that the sound output from the receiver of the mobile device is difficult to hear or the sound feels small. In recent years, in order to solve the above-described problem, a mobile device having an equalizer function for correcting a frequency characteristic of audio output from a receiver is commercially available. However, the setting parameters of the equalizer used in such a mobile device are not sufficient, and as a result, the frequency characteristics and the like of the sound are adjusted so that a clear sound can be obtained according to the auditory change due to the age of the user. However, there is a problem that this is extremely troublesome and poor in practicality.
【０００５】本発明は、上記従来の課題を解決するため
になされたもので、使用者の簡単な操作で、レシーバ等
から出力される音声の周波数特性及びレベルを年齢によ
る聴覚変化に合わせて容易に補正することができる音声
補正装置及び及び音声補正機能付き移機を提供すること
を目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and the frequency characteristics and level of sound output from a receiver or the like can be easily adjusted in accordance with age-related auditory changes by a simple operation of a user. It is an object of the present invention to provide a voice correction device and a transfer device with a voice correction function, which can correct a voice signal.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に本発明は、レシーバから出力される音声の周波数特性
及びレベルを使用者の年齢層による聴力の劣化に合わせ
て補正する音声補正装置であって、前記レシーバへの受
信用音声信号の可聴周波数範囲を心理音響学における聴
覚の臨界帯域幅に基づいて作られたバルク尺度を用いて
複数の帯域に分割する周波数帯域分割手段と、前記周波
数帯域分割手段で分割された各帯域に対して、該帯域毎
に使用者の年齢の増加につれて音が聞こえなくなる最小
可聴限の変化を音が聞こえる可聴域に補正するための重
み付け関数を受信パラメータとして使用者の世代別に記
憶する記憶手段と、使用者の年齢情報を入力する入力手
段と、前記入力手段から入力された年齢情報に基づいて
前記記憶手段から年齢の世代に対応する各帯域の受信パ
ラメータを選択し決定するパラメータ決定手段と、前記
レシーバへの受信用音声信号の受信特性を前記パラメー
タ決定手段で決定された受信パラメータに基づき各帯域
毎に重み付け処理して前記年齢の増加に伴う最小可聴限
の変化を補正する補正手段とを備えることを特徴とす
る。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a sound correcting apparatus for correcting the frequency characteristics and level of sound output from a receiver in accordance with the deterioration of hearing due to the age group of the user. Frequency band dividing means for dividing an audible frequency range of the audio signal for reception to the receiver into a plurality of bands using a bulk scale created based on a critical bandwidth of hearing in psychoacoustics; and For each band divided by the band dividing means, a weighting function for correcting a minimum audible change in which sound cannot be heard as the user's age increases for each band to an audible region in which sound can be heard as a reception parameter. Storage means for storing user generations, input means for inputting age information of the user, and storage means based on the age information input from the input means. Parameter determining means for selecting and determining a reception parameter of each band corresponding to the age generation, and weighting the reception characteristic of the audio signal for reception to the receiver for each band based on the reception parameter determined by the parameter determination means. Correcting means for correcting a change in minimum audibility with the increase of the age by processing.
【０００７】本発明によれば、入力手段からのコマンド
によりパラメータ決定手段を動作させ、入力手段からの
年齢情報に基づいて記憶手段から年齢層に対応する各帯
域の受信パラメータを選択し決定する。そして、補正手
段はパラメータ決定手段で決定された受信パラメータを
基づき各帯域毎に重み付け処理して年齢の増加に伴う最
小可聴限の変化を補正する。従って、使用者の簡単な操
作で、レシーバ等から出力される音声の周波数特性及び
レベルを年齢による聴覚変化に合わせて容易に補正する
ことができる。According to the present invention, the parameter determining means is operated by a command from the input means, and the reception parameters of each band corresponding to the age group are selected and determined from the storage means based on the age information from the input means. Then, the correction unit performs weighting processing for each band based on the reception parameter determined by the parameter determination unit to correct a change in the minimum audible limit accompanying an increase in age. Therefore, with a simple operation of the user, the frequency characteristics and the level of the sound output from the receiver or the like can be easily corrected in accordance with the auditory change due to age.
【０００８】本発明は、基地局等との無線通信を行う無
線部と、受信用レシーバ及び送話用マイクロホンと、基
地局等との無線回線接続・通話チャネルの切替え・無線
部とレシーバ及びマイクロホン間での音声信号処理など
を行う制御部を有し、前記制御部によりレシーバから出
力される音声の周波数特性及びレベルを使用者の年齢層
による聴力の劣化に合わせて補正する音声補正機能付き
の移動機であって、前記制御部は、前記レシーバへの受
信用音声信号の可聴周波数範囲を心理音響学における聴
覚の臨界帯域幅に基づいて作られたバルク尺度を用いて
複数の帯域に分割する周波数帯域分割手段と、前記周波
数帯域分割手段で分割された各帯域に対して、該帯域毎
に使用者の年齢の増加につれて音が聞こえなくなる最小
可聴限の変化を音が聞こえる可聴域に補正するための重
み付け関数を受信パラメータとして使用者の世代別に記
憶する記憶手段と、使用者の年齢情報を入力する入力手
段と、前記入力手段から入力された年齢情報に基づいて
前記記憶手段から年齢の世代に対応する各帯域の受信パ
ラメータを選択し決定するパラメータ決定手段と、前記
レシーバへの受信用音声信号の受信特性を前記パラメー
タ決定手段で決定された受信パラメータに基づき各帯域
毎に重み付け処理して前記年齢の増加に伴う最小可聴限
の変化を補正する補正手段とを備えることを特徴とす
る。The present invention relates to a radio unit for performing radio communication with a base station or the like, a reception receiver and a transmission microphone, connection of a radio line with a base station or the like, switching of a communication channel, a radio unit, a receiver and a microphone. With a voice correction function that corrects the frequency characteristics and level of voice output from the receiver by the control unit in accordance with the deterioration of hearing due to the age group of the user. The mobile device, wherein the control unit divides an audible frequency range of an audio signal to be received to the receiver into a plurality of bands using a bulk scale created based on a critical bandwidth of hearing in psychoacoustics. Frequency band dividing means, and for each band divided by the frequency band dividing means, change in minimum audible level at which sound cannot be heard as the user's age increases for each band. Storage means for storing a weighting function for correcting to the audible range as a reception parameter for each generation of the user, input means for inputting the age information of the user, and based on the age information input from the input means, Parameter determining means for selecting and determining a reception parameter of each band corresponding to the age generation from the storage means; and receiving characteristics of the audio signal for reception to the receiver based on the reception parameters determined by the parameter determination means. Correction means for weighting each time and correcting a change in the minimum audibility with the increase of the age.
【０００９】本発明によれば、入力手段からのコマンド
により制御部を年齢補正モードに設定してパラメータ決
定手段を動作させ、入力手段からの年齢情報に基づいて
記憶手段から年齢層に対応する各帯域の受信パラメータ
を選択し決定する。そして、補正手段はパラメータ決定
手段で決定された受信パラメータに基づき各帯域毎に重
み付け処理して年齢の増加に伴う最小可聴限の変化を補
正する。従って、使用者の簡単な操作で、レシーバから
出力される音声の周波数特性及びレベルを年齢による聴
覚変化に合わせて容易に補正することができる。According to the present invention, the control unit is set to the age correction mode by a command from the input means, the parameter determining means is operated, and each of the age information corresponding to the age group is stored in the storage means based on the age information from the input means. Select and determine band reception parameters. Then, the correction unit performs weighting processing for each band based on the reception parameter determined by the parameter determination unit to correct a change in the minimum audible limit accompanying an increase in age. Therefore, with a simple operation of the user, the frequency characteristics and the level of the sound output from the receiver can be easily corrected according to the auditory change due to age.
【００１０】[0010]
【発明の実施の形態】図１は本発明の音声補正機能を備
える携帯電話機の構成を示すブロック図であり、図２は
本発明にかかる音声補正装置の構成を示す機能ブロック
図である。図１において、携帯電話機は、携帯電話機全
体を制御するとともに通話に関係する種々の演算処理及
び音声補正に関係する処理を行うＣＰＵ（中央制御部）
１と、図示省略した基地局との通信を行う無線部２と、
ＣＰＵ１に接続され、キーボード等からなる操作部（入
力手段）３と、ＣＰＵ１に接続され、ＬＣＤ等からなる
表示部４と、ＣＰＵ１及び無線部２に接続され、受信信
号の周波数特性及びレベルを年齢による聴覚変化に合わ
せて補正する処理機能及び受信信号の補正分に応じて送
話キャンセル処理するとともに基地局等との無線回線接
続・通話チャネルの切替え・無線部とレシーバ及びマイ
クロホン間での音声信号処理などを行うＤＳＰ（デジタ
ル信号処理部）５と、ＣＰＵ１及びＤＳＰ５に接続さ
れ、受信信号特性を変化させるための受信パラメータ及
びノイズキャンセラ・エコーキャンセラに用いられる送
話パラメータやＣＰＵ１での演算結果等のデータを格納
するメモリ（記憶手段）６と、ＤＳＰ５に接続され、Ｄ
ＳＰ５からの音声データをアナログ信号に変換してレシ
ーバ（スピーカ）１１に出力するとともに、マイクロホ
ン９からの音声信号をデジタル信号に変換してＤＳＰ５
に出力するＡ／Ｄ・Ｄ／Ａコンバータ７と、Ａ／Ｄ・Ｄ
／Ａコンバータ７に接続され、マイクロホン９からの音
声信号を増幅するマイクアンプ８と、Ａ／Ｄ・Ｄ／Ａコ
ンバータ７に接続され、アナログ変換された音声信号を
増幅してレシーバ１１に出力するレシーバアンプ１０を
備えている。なお、ＣＰＵ１とＤＳＰ５は、請求項に示
す制御部を構成する。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing a configuration of a portable telephone having a voice correction function of the present invention, and FIG. 2 is a functional block diagram showing a configuration of a voice correction device according to the present invention. In FIG. 1, a mobile phone controls the entire mobile phone and performs various arithmetic processing related to a telephone call and processing related to voice correction (CPU (central control unit)).
1, a radio unit 2 for communicating with a base station not shown,
An operation unit (input means) 3 which is connected to the CPU 1 and comprises a keyboard, etc., a display unit 4 which is connected to the CPU 1 and comprises an LCD, etc., and which is connected to the CPU 1 and the radio unit 2 to change the frequency characteristics and the level of the received signal. Processing function to correct according to the change in hearing caused by the transmission and transmission cancellation processing according to the correction of the received signal, and connection to the wireless line with the base station, switching of the communication channel, audio signal between the wireless unit and the receiver and microphone A DSP (Digital Signal Processing Unit) 5 for performing processing and the like, connected to the CPU 1 and the DSP 5 and receiving parameters for changing received signal characteristics, transmission parameters used for a noise canceller / echo canceller, and calculation results of the CPU 1 A memory (storage means) 6 for storing data and a DSP 5
The audio data from the SP 5 is converted into an analog signal and output to the receiver (speaker) 11, and the audio signal from the microphone 9 is converted into a digital signal to
A / D / D / A converter 7 for outputting to A / D / D
A / A converter 7 connected to microphone amplifier 8 for amplifying an audio signal from microphone 9 and A / D / D / A converter 7 for amplifying an analog-converted audio signal and outputting it to receiver 11 A receiver amplifier 10 is provided. Note that the CPU 1 and the DSP 5 constitute a control unit described in claims.
【００１１】次に、図２によりＤＳＰ５の構成について
説明する。この図２において、ＤＳＰ５は、ＣＰＵ１の
制御下で動作するＢＰＦ（帯域通過フィルタ：周波数帯
域分割手段）５１、パラメータ決定手段５２、補正手段
５３、キャンセル手段５４を備える。ＢＰＦ５１は、レ
シーバ１１への受信用音声信号の可聴周波数範囲を心理
音響学における聴覚の臨界帯域幅に基づいて作られたバ
ルク尺度を用いて複数の帯域に分割する。例えば、図６
に示すように、音声信号の可聴周波数範囲である３００
Ｈｚから３７００Ｈｚの使用周波数範囲を心理音響学で
用いられる聴覚の臨界帯域幅に基づいて作られたバルク
尺度を用いて１５個の帯域に分割し、そして、聴覚の持
つ０から２４バルクまでの臨界帯域のうち、３から１７
バルクまでを疑似的に構成している。このようにＢＰＦ
５１で分割された各帯域に対して、該帯域毎に使用者の
年齢の増加につれて音が聞こえなくなる最小可聴限の変
化を音が聞こえる可聴域に補正するための重み付け関数
が受信パラメータとして使用者の世代別に、例えば図７
に示すように、３０代、４０代、５０代、６０代に分け
て設定され、この受信パラメータはメモリ６に記憶され
る。ここでいう受信パラメータとしての重み付け関数
は、例えば、４０代のバルク１５と１６に対応する各境
界周波数２７００Ｈｚと３１５０Ｈｚの臨界帯域幅に対
して、その最小可聴限がほぼゼロとなるようにするもの
である。Next, the configuration of the DSP 5 will be described with reference to FIG. 2, the DSP 5 includes a BPF (band-pass filter: frequency band dividing unit) 51 operating under the control of the CPU 1, a parameter determining unit 52, a correcting unit 53, and a canceling unit 54. The BPF 51 divides the audible frequency range of the audio signal to be received by the receiver 11 into a plurality of bands using a bulk scale created based on the critical auditory bandwidth in psychoacoustics. For example, FIG.
As shown in FIG.
The working frequency range from 3 Hz to 3700 Hz is divided into 15 bands using a bulk scale built on the critical bandwidth of hearing used in psychoacoustics, and the criticality of hearing from 0 to 24 bulk Of the band, 3 to 17
The structure up to the bulk is simulated. Thus, BPF
For each band divided by 51, a weighting function for correcting a change in minimum audible limit at which sound cannot be heard as the user's age increases for each band into an audible range where sound can be heard is used as a reception parameter by the user. For example, in FIG.
As shown in FIG. 7, the parameters are set for 30s, 40s, 50s, and 60s, and the reception parameters are stored in the memory 6. The weighting function as the reception parameter here is, for example, such that the minimum audible limit becomes almost zero for the critical bandwidths of 2700 Hz and 3150 Hz corresponding to the bulks 15 and 16 in the forties. It is.
【００１２】また、メモリ６には送信パラメータが記憶
されている。この送信パラメータは、ノイズ及び受信信
号の送信への廻り込みを防止するノイズ及びエコーキャ
ンセル用のパラメータであって、上記受信パラメータに
よる受信用音声信号への補正分に対じて変化し、上記分
割された各帯域に対応して使用者の世代別に設定され
る。上記パラメータ決定手段５２は、操作部３から入力
されるコマンドによりＣＰＵ１を年齢補正モードに設定
することで動作され、そして、操作部３から入力された
年齢情報に基づいてメモリ６から年齢に対応する世代の
各帯域の受信パラメータを選択し決定する。さらに、パ
ラメータ決定手段５２は、操作部３から入力された年齢
情報に基づいてメモリ６から年齢に対応する世代の各帯
域の送信パラメータを選択し決定する。The transmission parameters are stored in the memory 6. The transmission parameter is a noise and echo canceling parameter for preventing the noise and the reception signal from wrapping around in the transmission, and changes according to the correction to the reception audio signal by the reception parameter. It is set for each generation of the user corresponding to each of the set bands. The parameter determination means 52 is operated by setting the CPU 1 to the age correction mode by a command input from the operation unit 3, and corresponds to the age from the memory 6 based on the age information input from the operation unit 3. The reception parameters of each band of the generation are selected and determined. Further, the parameter determining means 52 selects and determines the transmission parameter of each band of the generation corresponding to the age from the memory 6 based on the age information input from the operation unit 3.
【００１３】上記補正手段５３は、レシーバ１１への受
信用音声信号の受信特性をパラメータ決定手段５２で決
定された受信パラメータを基づき各帯域毎に重み付け処
理して年齢の増加に伴う最小可聴限の変化を音が聞こえ
る可聴域に補正する。また、キャンセル手段５４は、パ
ラメータ決定手段５２で決定された送信パラメータを基
づいてノイズ及びエコーが送信（送話）へ廻り込むのを
低減する処理を行う。The correction means 53 weights the reception characteristics of the audio signal for reception to the receiver 11 for each band on the basis of the reception parameters determined by the parameter determination means 52, and sets the minimum audible limit as the age increases. Correct the change to the audible range where sound can be heard. Further, the canceling unit 54 performs a process of reducing noise and echo from being transmitted to transmission (transmission) based on the transmission parameters determined by the parameter determination unit 52.
【００１４】次に、本実施の形態における年齢による音
声補正の動作について、図３ないし図５を参照して説明
する。図３は、待ち受け状態にある携帯電話機を年齢補
正モード及び年齢補正後の待ち受け状態に移行させる場
合の動作手順を示すフローチャートである。この図３に
示すステップＳ１において、待ち受け状態にある携帯電
話機の操作部３上の特定キーが押下されることにより、
年齢補正のためのコマンドが入力されたかを判定する
（ステップＳ２）。ここで、コマンド入力がない場合
は、既に決定されている受信パラメータ、送信パラメー
タを保持する（ステップＳ３）。また、コマンド入力が
ある場合は、携帯電話機を使用する使用者の年齢に対す
る受信パラメータ及び送信パラメータの選択、決定ため
の処理ルーチンを実行する（ステップＳ４）。このステ
ップＳ４の処理が終了した後は、携帯電話機は再び待ち
受け状態に移行し（ステップＳ５）、終了となる。Next, the operation of voice correction according to age in the present embodiment will be described with reference to FIGS. FIG. 3 is a flowchart showing an operation procedure when the mobile phone in the standby state is shifted to the age correction mode and the standby state after the age correction. In step S1 shown in FIG. 3, when a specific key on operation unit 3 of the mobile phone in a standby state is pressed,
It is determined whether a command for correcting the age has been input (step S2). Here, if there is no command input, the reception parameters and transmission parameters that have already been determined are held (step S3). If there is a command input, a processing routine for selecting and determining reception parameters and transmission parameters for the age of the user using the mobile phone is executed (step S4). After the processing in step S4 ends, the mobile phone shifts to the standby state again (step S5), and ends.
【００１５】次に、受信パラメータ及び送信パラメータ
の選択、決定のための処理ルーチンの動作を図４を用い
て説明する。図４において、携帯電話機のコマンド入力
待ち状態（ステップＳ１１）から、使用者が操作部３上
の特定キーが押下されると（ステップＳ１２）、受信音
声の補正命令が入力され、年齢補正モードに移行する
（ステップＳ１３）。次いで、携帯電話機の使用者は自
身の年齢を操作部３から入力する（ステップＳ１４）。
この年齢情報を取り込んだＣＰＵ１は、入力された年齢
について世代判定を行い世代別に分類する（ステップＳ
１５）。続いて、パラメータ決定手段５２では、分類さ
れた世代別の情報を基にメモリ６に予め記憶されている
受信パラメータデータを検索し（ステップＳ１６）、入
力された年齢に最も近い年代の受話パラメータを選択・
決定し（ステップＳ１７）、この選択・決定した受信パ
ラメータをメモリ６に記憶する（ステップＳ１８）。Next, the operation of a processing routine for selecting and determining a reception parameter and a transmission parameter will be described with reference to FIG. In FIG. 4, when the user presses a specific key on the operation unit 3 (step S12) from a command input waiting state of the mobile phone (step S11), a received voice correction command is input, and the age correction mode is set. The process proceeds (step S13). Next, the user of the mobile phone inputs his / her age from the operation unit 3 (step S14).
The CPU 1, which has taken in the age information, performs a generation determination on the inputted age and classifies it by generation (Step S).
15). Subsequently, the parameter determination means 52 searches the reception parameter data stored in the memory 6 in advance based on the classified information of each generation (step S16), and determines the received reception parameter of the age closest to the input age. Choice·
It is determined (step S17), and the selected and determined reception parameters are stored in the memory 6 (step S18).
【００１６】次に、パラメータ決定手段５２では、メモ
リ６から年齢に対応する世代の各帯域の送信パラメータ
を選択・決定し（ステップＳ１９）、この選択・決定し
た送信パラメータをメモリ６に記憶する（ステップＳ２
０）。この送信パラメータは、周囲騒音及び受話音声が
送話音声に廻り込むことを防ぐ、ノイズキャンセラ及び
エコーキャンセラのためのもので、受信パラメータによ
る受話音声の補正分が送話特性へ影響するのを低減する
ように決定される。次いで、パラメータ決定手段５２に
より受信パラメータ及び送信パラメータが決定された
後、操作部３上の特定キーが押下されると（ステップＳ
２１）、携帯電話機の年齢補正モードが解除され（ステ
ップＳ２２）、終了する。そして、図３に示す待ち受け
状態のステップＳ５に移行する。Next, the parameter determining means 52 selects and determines transmission parameters for each band of the generation corresponding to the age from the memory 6 (step S19), and stores the selected and determined transmission parameters in the memory 6 (step S19). Step S2
0). This transmission parameter is for a noise canceller and an echo canceller that prevent the ambient noise and the received voice from entering the transmitted voice, and reduces the influence of the correction of the received voice by the received parameter on the transmission characteristics. Is determined as follows. Next, after the reception parameter and the transmission parameter are determined by the parameter determination unit 52, when a specific key on the operation unit 3 is pressed (Step S).
21), the age correction mode of the mobile phone is released (step S22), and the process ends. Then, the process proceeds to step S5 in the standby state shown in FIG.
【００１７】次に、音声補正のための受信パラメータ及
びノイズとエコーキャンセラのための送信パラメータが
使用者の年齢に応じて決定された後の待ち受け状態にあ
る携帯電話機が発呼または着呼動作する場合について、
図５を用いて説明する。携帯電話機が待ち受け状態にあ
る時（ステップＳ３１）、この携帯電話機が発呼動作又
は着呼動作すると（ステップＳ３２）、携帯電話機は通
話状態に移行する（ステップＳ３３）。携帯電話機が通
話状態に移行し使用者が通話を行っている場合は、年齢
補正モード処理で決定された受話パラメータを用いて、
ＤＳＰ５内の補正手段５３で受話信号の重み付け処理を
行い（ステップＳ３４）、使用者の年齢にあった補正が
行われる。すなわち、受話パラメータを基に、ある周波
数帯を強調または低減させる等の重み付け処理がなされ
ることにより受話特性を変化させ、年齢の増加に伴う最
小可聴限の変化を音が聞こえる可聴域に補正する。重み
付け処理された受話用の音声信号は、Ａ／Ｄ・Ｄ／Ａコ
ンバータ７でデジタル信号からアナログ信号に変換さ
れ、レシーバアンプ１０で増幅された後、レシーバ１１
から音声として出力される。この時、レシーバ１１から
出力される受話音声は、使用者の年齢による最小可聴限
が音が聞こえる可聴域に補正されることで、明瞭性のあ
る聞き取り易いものとなる。Next, the mobile phone in the standby state after the reception parameters for voice correction and the transmission parameters for noise and echo canceller are determined according to the age of the user performs a call or call operation. About the case
This will be described with reference to FIG. When the mobile phone is in the standby state (step S31), when the mobile phone performs a calling operation or an incoming call operation (step S32), the mobile phone shifts to a talking state (step S33). If the mobile phone is in a call state and the user is talking, using the reception parameters determined in the age correction mode process,
A weighting process of the received signal is performed by the correction means 53 in the DSP 5 (step S34), and correction according to the age of the user is performed. That is, the receiving characteristic is changed by performing a weighting process such as emphasizing or reducing a certain frequency band based on the receiving parameter, and the change in the minimum audibility with the increase in age is corrected to an audible range where sound can be heard. . The weighted speech signal for reception is converted from a digital signal to an analog signal by an A / D / D / A converter 7, amplified by a receiver amplifier 10, and then received by a receiver 11.
Is output as audio. At this time, the received voice output from the receiver 11 becomes clear and easy to hear because the minimum audibility limit according to the age of the user is corrected to the audible range where the sound can be heard.
【００１８】また、キャンセル手段５４では、年齢補正
モード処理で決定された送信パラメータを用いて、ノイ
ズキャンセル及びエコーキャンセルの送話キャンセル処
理を行い（ステップＳ３５）、これにより、周囲騒音及
び受話音声が送話音声に廻り込むことを防止する。そし
て、携帯電話機が通話終了し（ステップＳ３６）、これ
により、携帯電話機は待ち受け状態に移行する（ステッ
プＳ３７）。The canceling means 54 performs a transmission cancellation process of noise cancellation and echo cancellation using the transmission parameters determined in the age correction mode process (step S35), whereby the ambient noise and the received voice are reduced. Prevents sneaking into transmitted voice. Then, the mobile phone ends the call (step S36), whereby the mobile phone shifts to a standby state (step S37).
【００１９】なお、上記の実施の形態においては、本発
明の本性補正機能をＰＨＳや携帯電話機等の移動無線機
器に適用した場合について説明したが、本発明はこれに
限定されず、テレビ、ステレオなどのオーディオ機器に
利用することができ、これにより、オーディオ機器のス
ピーカから出力される音声に対して、年齢による聴覚の
変化を簡単な操作で補正でき、会話、音楽等の明瞭性を
高めることができる。In the above-described embodiment, a case has been described where the intrinsic correction function of the present invention is applied to a mobile radio device such as a PHS or a portable telephone. However, the present invention is not limited to this, and the present invention is not limited to this. The audio output from the speaker of the audio device can be corrected by a simple operation to improve the clarity of conversation, music, etc. Can be.
【００２０】[0020]
【発明の効果】以上のように本発明の音声補正装置及び
音声補正機能付き移動機によれば、使用者の簡単な操作
で、レシーバから出力される音声の周波数特性及びレベ
ルを年齢による聴覚変化に合わせて容易に補正すること
ができる。これにより、受話音声を明瞭にすることがで
きるとともに、聴力の衰えが大きくなる中高年齢者の受
話に好適となる効果を有する。As described above, according to the voice correcting apparatus and the mobile device with the voice correcting function of the present invention, the frequency characteristic and the level of the voice output from the receiver can be changed by the auditory change with age by a simple operation of the user. Can be easily corrected according to As a result, the received voice can be clarified, and an effect that is suitable for the reception of middle-aged and elderly persons whose hearing loss is large is obtained.
【図１】本発明の音声補正機能を備える携帯電話機の構
成を示すブロック図である。FIG. 1 is a block diagram showing a configuration of a mobile phone having an audio correction function of the present invention.
【図２】本発明にかかる音声補正装置の構成を示す機能
ブロック図である。FIG. 2 is a functional block diagram illustrating a configuration of a voice correction device according to the present invention.
【図３】本発明の待ち受け状態にある携帯電話機を年齢
補正モード及び年齢補正後の待ち受け状態に移行させる
場合の動作手順を示すフローチャートである。FIG. 3 is a flowchart illustrating an operation procedure when the mobile phone in a standby state according to the present invention is shifted to an age correction mode and a standby state after the age correction.
【図４】本発明の実施の形態における受信パラメータ及
び送信パラメータの選択、決定処理ルーチンの処理手順
を示すフローチャートである。FIG. 4 is a flowchart showing a processing procedure of a reception and transmission parameter selection and determination processing routine according to the embodiment of the present invention.
【図５】本発明の実施の形態における発呼または着呼時
の受信パラメータによる音声補正と送信パラメータによ
るノイズ及びエコーキャンセラの動作手順を示すフロー
チャートである。FIG. 5 is a flowchart showing an operation procedure of noise and echo canceller based on transmission parameters and voice correction based on reception parameters at the time of calling or receiving a call according to the embodiment of the present invention.
【図６】本発明の実施の形態におけるＢＰＦの帯域と臨
界帯域の関係を示す図である。FIG. 6 is a diagram illustrating a relationship between a BPF band and a critical band according to the embodiment of the present invention.
【図７】可聴周波数に対する年齢による最小可聴限の変
化を示す特性図である。FIG. 7 is a characteristic diagram showing a change of a minimum audibility limit according to an age with respect to an audible frequency.
１……ＣＰＵ、２……無線部、３……操作部（入力手
段）、４……表示部、５……ＤＳＰ（デジタル信号処理
部）、６……メモリ（記憶手段）、７……Ａ／Ｄ・Ｄ／
Ａコンバータ、９……マイクロホン、１１……レシー
バ、５１……ＢＰＦ（周波数帯域分割手段）、５２……
パラメータ決定手段、５３……補正手段、５４……キャ
ンセル手段。1 ... CPU, 2 ... Wireless unit, 3 ... Operation unit (input unit), 4 ... Display unit, 5 ... DSP (digital signal processing unit), 6 ... Memory (storage unit), 7 ... A / D ・ D /
A converter, 9 microphone, 11 receiver, 51 BPF (frequency band dividing means), 52
Parameter determination means, 53... Correction means, 54.
Claims (8)
性及びレベルを使用者の年齢層による聴力の劣化に合わ
せて補正する音声補正装置であって、 前記レシーバへの受信用音声信号の可聴周波数範囲を心
理音響学における聴覚の臨界帯域幅に基づいて作られた
バルク尺度を用いて複数の帯域に分割する周波数帯域分
割手段と、 前記周波数帯域分割手段で分割された各帯域に対して、
該帯域毎に使用者の年齢の増加につれて音が聞こえなく
なる最小可聴限の変化を音が聞こえる可聴域に補正する
ための重み付け関数を受信パラメータとして使用者の世
代別に記憶する記憶手段と、 使用者の年齢情報を入力する入力手段と、 前記入力手段から入力された年齢情報に基づいて前記記
憶手段から年齢の世代に対応する各帯域の受信パラメー
タを選択し決定するパラメータ決定手段と、 前記レシーバへの受信用音声信号の受信特性を前記パラ
メータ決定手段で決定された受信パラメータを基づき各
帯域毎に重み付け処理して前記年齢の増加に伴う最小可
聴限の変化を補正する補正手段と、 を備えることを特徴とする音声補正装置。An audio correction device for correcting the frequency characteristics and level of audio output from a receiver in accordance with the deterioration of hearing due to a user's age group, wherein an audio frequency range of an audio signal to be received by the receiver is provided. A frequency band dividing unit that divides into a plurality of bands using a bulk scale created based on the critical bandwidth of hearing in psychoacoustics, and for each band divided by the frequency band dividing unit,
Storage means for storing, as a reception parameter, a weighting function for correcting a change in minimum audibility at which sound cannot be heard as the user's age increases for each band to an audible range in which sound can be heard, as a reception parameter for each generation of the user; Input means for inputting the age information of the following; parameter determination means for selecting and determining reception parameters of each band corresponding to the age generation from the storage means based on the age information input from the input means; and Correction means for weighting the reception characteristics of the reception audio signal for each band for each band based on the reception parameters determined by the parameter determination means, and correcting a change in the minimum audible limit with an increase in the age. An audio correction device characterized by the following.
マンドを入力することにより、年齢補正モードに設定し
て前記パラメータ設定手段を動作させるように構成され
ていることを特徴とする請求項１記載の音声補正装置。2. The apparatus according to claim 1, wherein said input means is operated to input a command during standby, thereby setting an age correction mode and operating said parameter setting means. An audio correction device as described.
操作してコマンドを入力することにより解除されること
を特徴とする請求項２記載の音声補正装置。3. The audio correction device according to claim 2, wherein the age correction mode is canceled by operating the input means and inputting a command.
カであることを特徴とする請求項１記載の音声補正装
置。4. The audio correction device according to claim 1, wherein the receiver is a speaker of an audio device.
受信用レシーバ及び送話用マイクロホンと、基地局等と
の無線回線接続・通話チャネルの切替え・無線部とレシ
ーバ及びマイクロホン間での音声信号処理などを行う制
御部を有し、前記制御部によりレシーバから出力される
音声の周波数特性及びレベルを使用者の年齢層による聴
力の劣化に合わせて補正する音声補正機能付きの移動機
であって、 前記制御部は、 前記レシーバへの受信用音声信号の可聴周波数範囲を心
理音響学における聴覚の臨界帯域幅に基づいて作られた
バルク尺度を用いて複数の帯域に分割する周波数帯域分
割手段と、 前記周波数帯域分割手段で分割された各帯域に対して、
該帯域毎に使用者の年齢の増加につれて音が聞こえなく
なる最小可聴限の変化を音が聞こえる可聴域に補正する
ための重み付け関数を受信パラメータとして使用者の世
代別に記憶する記憶手段と、 使用者の年齢情報を入力する入力手段と、 前記入力手段から入力された年齢情報に基づいて前記記
憶手段から年齢の世代に対応する各帯域の受信パラメー
タを選択し決定するパラメータ決定手段と、 前記レシーバへの受信用音声信号の受信特性を前記パラ
メータ決定手段で決定された受信パラメータに基づき各
帯域毎に重み付け処理して前記年齢の増加に伴う最小可
聴限の変化を補正する補正手段と、 を備えることを特徴とする音声補正機能付き移動機。5. A wireless unit for performing wireless communication with a base station or the like,
A receiver for receiving and transmitting microphones, a controller for performing wireless line connection with base stations and the like, switching of communication channels, audio signal processing between the wireless unit and the receiver and the microphone, and the like. A mobile device with a voice correction function for correcting the frequency characteristics and level of the voice output from the user according to the deterioration of hearing due to the age group of the user, wherein the control unit is configured to transmit a voice signal for reception to the receiver. A frequency band dividing unit that divides the audible frequency range into a plurality of bands using a bulk scale created based on the critical bandwidth of hearing in psychoacoustics, and for each band divided by the frequency band dividing unit. ,
Storage means for storing, as a reception parameter, a weighting function for correcting a change in minimum audibility at which sound cannot be heard as the user's age increases for each band to an audible range in which sound can be heard, as a reception parameter for each generation of the user; Input means for inputting the age information of the following; parameter determination means for selecting and determining reception parameters of each band corresponding to the age generation from the storage means based on the age information input from the input means; and Correction means for weighting the reception characteristic of the reception audio signal for each band based on the reception parameter determined by the parameter determination means to correct a change in the minimum audible limit with an increase in the age. A mobile device with an audio correction function.
信への廻り込みを防止するノイズ及びエコーキャンセル
用の送信パラメータを前記受信パラメータによる受信用
音声信号への補正分に対じて変化させ、該送信パラメー
タを前記分割された各帯域に対応して使用者の世代別に
記憶する記憶手段と、前記入力手段から入力された年齢
情報に基づいて前記記憶手段から年齢の世代に対応する
各帯域の送信パラメータを選択し決定するパラメータ決
定手段と、前記パラメータ決定手段で決定された送信パ
ラメータに基づいてノイズ及びエコーが送信へ廻り込む
のを防止するキャンセル手段を更に備えることを特徴と
する請求項５記載の音声補正機能付き移動機。6. The control unit changes a transmission parameter for noise and echo cancellation for preventing noise and a reception signal from wrapping into transmission in accordance with a correction to a reception audio signal by the reception parameter. Storage means for storing the transmission parameters for each generation of the user corresponding to each of the divided bands; and each band corresponding to the age generation from the storage means based on the age information input from the input means. Further comprising: parameter determining means for selecting and determining the transmission parameters of the above, and canceling means for preventing noise and echo from entering the transmission based on the transmission parameters determined by the parameter determining means. 5. A mobile device with a voice correction function according to 5.
マンドを入力することにより、前記制御部を年齢補正モ
ードに設定して前記パラメータ設定手段が動作されるよ
うに構成されていることを特徴とする請求項５または６
記載の音声補正機能付き移動機。7. The apparatus according to claim 1, wherein the controller is set to an age correction mode and the parameter setting means is operated by operating the input means and inputting a command during standby. Claim 5 or 6
Mobile unit with voice correction function as described.
力手段を操作してコマンドを入力することにより解除さ
れ、待ち受け状態に移行されるように構成されているこ
とを特徴とする請求項５または６記載の音声補正機能付
き移動機。8. The age correction mode of the control unit is configured to be released by operating the input means and inputting a command, and to shift to a standby state. Or a mobile device with an audio correction function according to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP642899A JP3236268B2 (en) | 1999-01-13 | 1999-01-13 | Voice correction device and mobile device with voice correction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP642899A JP3236268B2 (en) | 1999-01-13 | 1999-01-13 | Voice correction device and mobile device with voice correction function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000209698A true JP2000209698A (en) | 2000-07-28 |
| JP3236268B2 JP3236268B2 (en) | 2001-12-10 |
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ID=11638130
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP642899A Expired - Fee Related JP3236268B2 (en) | 1999-01-13 | 1999-01-13 | Voice correction device and mobile device with voice correction function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3236268B2 (en) |
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