WO2010148694A1 - Audio input device for preventing noise interference and method for eliminating audio noise interference - Google Patents

Audio input device for preventing noise interference and method for eliminating audio noise interference Download PDF

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Publication number
WO2010148694A1
WO2010148694A1 PCT/CN2010/071495 CN2010071495W WO2010148694A1 WO 2010148694 A1 WO2010148694 A1 WO 2010148694A1 CN 2010071495 W CN2010071495 W CN 2010071495W WO 2010148694 A1 WO2010148694 A1 WO 2010148694A1
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Prior art keywords
audio
sheep
letter
same
noise interference
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PCT/CN2010/071495
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French (fr)
Chinese (zh)
Inventor
张驰俊
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中兴通讯股份有限公司
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Publication of WO2010148694A1 publication Critical patent/WO2010148694A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor

Definitions

  • the intelligent third-generation (3G, 3 d Ge e a o ) terminal has many functions in addition to the functions of various ordinary handwritings.
  • the audio-like way of the sheep that is, only the audio of the road goes to the audio and thoughts, and the received signals on the way are the same.
  • the audio device in the existing wooden handwriting shows, as shown in 1 , the audio device includes audio, audio channel and audio science, audio to generate audio, audio
  • Audio Ricky by audio, the audio is mainly caused by the audio channel, so the audio from the existing audio device to the audio Rise is with a noise letter. .
  • the main purpose of this is to provide audio devices and audio cancellation methods that eliminate noise in the audio.
  • Audio device including audio generation sheep and the first, the device includes reference to the letter to generate the sheep, the second and the sheep.
  • the first and second letter characteristics are exactly the same.
  • the sheep generates the repaired audio, large, and generates the repaired audio.
  • the method of eliminating audio includes, working on audio.
  • the audio-like reference letter has the same characteristics.
  • the audio is similar to the reference letter and the repaired audio is generated.
  • the audio is parallel to the reference letter.
  • the reference audio frequency is exactly the same, so that in the middle of the household
  • composition of the audio device of Liben, shown in 2, the audio device of this audio includes the audio generation sheep 20,
  • the walking and walking are arranged in parallel and are similar.
  • the characteristics of walking and walking are the same, that is, the length and the same used for walking and walking are exactly the same, and they are exactly the same.
  • the user of the general-handed audio is mainly caused by the lead, and the original reference channel is added to the original audio for the reference of the household, and the audio is walked flat, that is, the audio of the reference letter is made.
  • the reference is the same in intensity and phase as the received audio. That is, the characteristics of the signals are completely the same, and the characteristics of the letters are exactly the same.
  • the main force of the road is to receive the news that the winner's person is offset, and the repaired voice is the most audio.
  • the big device is about to refer to the audio reference, but then the reference, the large phase of the nuclear, and then the audio phase, due to the elimination of the large, so the message will be very clear. It is a very important part of audio performance, and it is also the most important item of audio. With the Ming technology solution, the phenomenon of audio in this Ming is basically solved. The comparison results of Hugh 1 and Table 2. 1 audio and audio test results
  • the method for canceling the audio in the present invention includes the identical audio of the reference, and the reference to the plain signal, the same including the in-path, the length, and the external, etc. are all the same, and the audio-like reference to the letter is further increased. Audio. Among them, the audio reference will be sent to the letter, and the audio will be referred to as a flat letter, and then the audio will be as high as before.
  • the phase of the audio device is no longer available.
  • a terminal with functions such as , , and fixed A terminal with functions such as , , and fixed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)

Abstract

An audio input device for preventing noise interference is provided, which includes an audio signal source generation unit (20), and a first transmission line (21), said device also includes: a reference level signal generation unit (22), a second transmission line (23) and a voltage detection unit (24), wherein, said audio signal source generation unit (20) receives and generates an audio analog signal, then sends it to said voltage detection unit (24) through said first transmission line (21); said reference level signal generation unit (22) generates a reference level signal, then sends it to said voltage detection unit (24) through said second transmission line (23); based on said audio analog signal and said reference level signal, said voltage detection unit (24) generates an amended audio signal as an audio input signal. A method for eliminating audio noise interference is also disclosed in the present invention. By using the present invention, the interference generated by the audio transmission line is eliminated efficiently, the pure speech signal is inputted to an audio chip for processing, and the definition of the speech communication is guaranteed.

Description

的音頻 裝置及音頻 的消除方法 木領域  Audio device and audio elimination method
本 涉及音頻 木， 尤其涉及 終端中 的音頻 裝置及音頻 的消除方法。 背景 木  This relates to audio wood, especially to audio devices and audio cancellation methods in terminals. Background
看 的迅猛 ， 有力地 看 向智能 、 小型 以及高性能方向 。 例 ， 智能第三代 (3G, 3 d Ge e a o ) 終端 除了 各普通手札的許多功能外， 更具各了許多附 功能， 高速  Look at the rapid, powerful look at the direction of intelligence, small and high performance. For example, the intelligent third-generation (3G, 3 d Ge e a o ) terminal has many functions in addition to the functions of various ordinary handwritings.
、 、 全球定位 統 (GPS, Goba os o g Syse )、 可 等。 看3G智能 終端的集成 越 越高， 功能 的不 增 ， 使 得 終端 身戶生的 也越 越多， 何有效地防止 同的 ， 統 常有序的工作， 是各大 終端制造商 的 大 。 目前 終端中 比較 重的、 也容易 的是音頻 部分。 果音頻 受到 ， 用戶就 直 在 中感受到 的噪音， 直接 終端的性能。  , Global Positioning System (GPS, Goba os o g Syse), OK, etc. Seeing that the integration of 3G intelligent terminals is higher, the functions are not increased, so that more and more terminal users are born. How to effectively prevent the same and orderly work is the big terminal manufacturers. At present, the more important and easy part of the terminal is the audio part. If the audio is received, the user will feel the noise directly in the direct terminal performance.
音頻 路 般 羊 方式， 即只有 路音頻走 到 音頻 理思 ， 將途中受到的 引 音信 同 ， 。 1 現有 木中手札中的音頻 裝置 示意 ， 1 所示， 音頻 裝置包括音頻 、 音頻 路 以及音頻 理思 ， 音頻 于生成音頻 ， 音頻  The audio-like way of the sheep, that is, only the audio of the road goes to the audio and thoughts, and the received signals on the way are the same. 1 The audio device in the existing wooden handwriting shows, as shown in 1 , the audio device includes audio, audio channel and audio science, audio to generate audio, audio
音頻 理思 ， 由音頻 理思 相 ， 音頻 的 戶主要是由于音頻 路上 的引 而造成的， 因此， 現有的 音頻 裝置 到音頻 理思 中的音頻 ， 是 帶有噪音信 。 Audio Ricky, by audio, the audio is mainly caused by the audio channel, so the audio from the existing audio device to the audio Rise is with a noise letter. .
目前， 上述問題， 沒有較 合的解決方案。  At present, there is no better solution to the above problems.
內容  Content
有 于此， 本 的主要目的在于提供 的音頻 裝 置及音頻 的消除方法， 消除音頻 中的噪音。  In this regard, the main purpose of this is to provide audio devices and audio cancellation methods that eliminate noise in the audio.
到上 目的， 本 的 木 是 的  For the purpose of the purpose, the wood of this is
的音頻 裝置， 包括音頻 生成羊元和第 ， 裝置近包括 參考 平信 生成羊 、 第二 和 羊 其中，  Audio device, including audio generation sheep and the first, the device includes reference to the letter to generate the sheep, the second and the sheep.
音頻 生成羊 生成音頻 似 ， 通 第 羊  Audio generation sheep to generate audio like, pass the sheep
參考 平信 生成羊 生成參考 平信 ， 通 第二  Reference, generating a sheep, generating a reference, a letter, a second
羊 的音頻 ， 作力音頻 。  Sheep's audio, effort audio.
， 第 和 第二 的信 特性完全 相同。  The first and second letter characteristics are exactly the same.
， 第 和 第二 同的同 在0． 5 至 m 同。  , the second and the same with 0. 5 to m with.
， 第 和 第二 路平行。  , the second and the second parallel.
， 羊 生成修 的音頻 ， 大， 生成修 的音頻 。  The sheep generates the repaired audio, large, and generates the repaired audio.
， 羊 大器。  , sheep big.
， 參考 平信 生成羊 包括 的第 和第二 第 和 第二 同的 作力參考 平信 ， 音頻 生成羊 凡。 , refer to the letter to generate the sheep including the second and second The first and second efforts are based on the letter, and the audio is generated by Yang Fan.
音頻 的消除方法， 方法包括 ， 作力音頻 。  The method of eliminating audio, the method includes, working on audio.
， 音頻 似 的 參考 平信 的 特性相同。  The audio-like reference letter has the same characteristics.
， 生成修 的音頻 ，  , generating the repaired audio,
將 音頻 似 參考 平信 再 大， 生成修 的音頻 。  The audio is similar to the reference letter and the repaired audio is generated.
， 音頻 的 和 參考 平信 的 路平行。  The audio is parallel to the reference letter.
， 音頻 的 和 參考 平信 的 同的同 在0． 5 至 同。  , the audio and the reference letter of the same with 0. 5 to the same.
本 明中， 在音頻 裝置中 音頻 的 路旁， 再 介參考 平信 的 ， 參考 平信 的 音 頻 的 完全相同， 以使 在 中戶生的  In the present invention, in the audio device, the roadside of the audio, and then refer to the letter of the letter, the reference audio frequency is exactly the same, so that in the middle of the household
完全相同， ， 通 介 羊 的 ， 將 ， 再 大到音頻 前的 水平， ， 即消除了音頻 中的 。 本 硬件 角度 ， 能使音頻 路上受到的 有效消除， 而將 的 音信 音頻 ， 了 的清晰 。 說明 It's exactly the same, the general introduction of the sheep, will, and then to the level before the audio, that is, eliminate the audio. This hardware angle can effectively eliminate the audio channel, and the audio and audio of the audio is clear. Description
1 現有 木中手札中的音頻 裝置 示意 1 Existing audio equipment in the wooden handwriting
2力本 的音頻 裝置的組成 示意 休 方式 2 composition of the audio device Hugh way
本 的基本思想是 在音頻 裝置中 音頻 的 路旁， 再 介參考 平信 的 ， 參考 平信 的  The basic idea of this is to be on the roadside of the audio in the audio device, and then refer to the letter, refer to the letter
音頻 的 完全相同， 以使 在 中戶 生的 完全相同， ， 通 介 羊 的 ， 將  The audio is exactly the same, so that the students in the middle of the same are the same,
， 再 大到音頻 前的 水平， ， 即消除了音頻 中的 。  , then to the level before the audio, that is, the audio is eliminated.
本 的目的、 木方案和 更 清楚 ， 以下奉 參照 ， 本 步 細說明。 The purpose of this, the wood plan and more clearly, the following reference, this step is detailed.
2 力本 的音頻 裝置的組成 示意 ， 2 所示， 本 的音頻 裝置包括音頻 生成羊 20、 第 2 The composition of the audio device of Liben, shown in 2, the audio device of this audio includes the audio generation sheep 20,
21、 參考 平信 生成羊 22、 第二 23和 羊 24， 其中， 音頻 生成羊 20 生成音頻 似 ， 通 21, reference to the letter to generate sheep 22, the second 23 and the sheep 24, wherein the audio generation sheep 20 generate audio like
21 羊 24 參考 平信 生成羊 22生成參 考 平信 ，通 第二 23 羊 24 羊 24 音頻 似 和 參考 平信 生成修 的音頻 ， 作 力音頻 。 21 sheep 24 reference letter to generate sheep 22 to generate reference to the letter, pass the second 23 sheep 24 sheep 24 audio and reference to the letter to generate the repaired audio, force audio.
3 力本 的音頻 裝置的 示意 ， 3 所示， 本 的音頻 裝置中， 音頻 (音頻 生 成羊 20) 休 凡等具有 功能的器件 參考 平信 生成 羊 22包括 的 ， 即第 及第二 。 羊 24 休 大器。 音頻 戶生 原始 音信 ， 走  3 The indication of the audio device of Liben, 3, in the audio device, the audio (audio generation sheep 20) Hugh Fan and other functional devices refer to the plain letter generation sheep 22 included, namely the second and the second. Sheep 24 rest. Audio, original, original message, go
到差 大器的 ， 中， 走 上將引 的 音信 。 ， 走 上的音頻 音頻 似 ， 即 平信 。 參考 路通 第 、 第二 ， 原始參考 ， 通 走 In the middle of the difference, go to the letter that will be quoted. , the audio audio that goes on, that is, the letter. Reference Lutong first, second, original reference, pass
到差 大器的 ， 中， 走 上將引 的參考 。 本 明中， 將走 和走 平行布置且 得相 近。 走 和走 的 特性相同， 即走 和走 二所使用的 的 、 長度及 等完全相同， 且其所 的 也完全相同。 走 和走 同的 同 在 0． 5 至 同， 的同 0． 、 ． 5 、 0．2m 0.25 0.3 0.35 .5 0.6 0.7 0.8 .g . 大器依 和 上的 平信 的 修 的 音信 ， 即去除 的 音信 。 最終將 路 大器 得到的修 的 音信 直接 到音頻 理思 。 In the middle of the difference, go to the reference that will be cited. In the present invention, the walking and walking are arranged in parallel and are similar. The characteristics of walking and walking are the same, that is, the length and the same used for walking and walking are exactly the same, and they are exactly the same. Walking and walking with the same 0. 5 to the same, the same 0. , . 5, 0.2m 0.25 0.3 0.35 .5 0.6 0.7 0.8 .g . The message of the repair of the flat letter and the letter, that is, the removed message. Eventually, the repaired message from the router will be directly sent to the audio.
般手札音頻的 戶主要是由于走 上 的引 造成的， 本 在 原先音頻 上增 了 路參考 路用于戶生參考 ， 伴隨音頻走 平行走 ， 即， 使 參考 平信 的 音頻 的  The user of the general-handed audio is mainly caused by the lead, and the original reference channel is added to the original audio for the reference of the household, and the audio is walked flat, that is, the audio of the reference letter is made.
完全相同， 參考 在 所受的 和音頻 在 中受到的 強度和相位 乎相同。 即， 使 的信 特性完 全相同， ， 的信 特性完全相同是指 路中的  Exactly the same, the reference is the same in intensity and phase as the received audio. That is, the characteristics of the signals are completely the same, and the characteristics of the letters are exactly the same.
、 的 、 長度， 以及 的外部 溫度、 等都相 同。 路 大器作力接收 將 者 的 ， 者 的 即 者受到的 相抵消、 而得到修 的 音信 ， 最 音頻 理思 。  , , length, and external temperature, etc. are the same. The main force of the road is to receive the news that the winner's person is offset, and the repaired voice is the most audio.
本 的 大器即將音頻 參考 平信 ， 然 再 參考 的 ， 核作 的 相 的 大 ， 再 至音頻 理思 中 相 ， 由于 大器的 消除， 因此， 得的 音信 將 非常清晰。 是音頻性能中非常重要的 介 ， 也是音頻 最 以 的 項。 用本 明技木方案 ， 本 明中的音頻 的 現 象基本得到解決。 休可 1及表2的 比結果。 1 音頻 音頻 的 測試結果 The big device is about to refer to the audio reference, but then the reference, the large phase of the nuclear, and then the audio phase, due to the elimination of the large, so the message will be very clear. It is a very important part of audio performance, and it is also the most important item of audio. With the Ming technology solution, the phenomenon of audio in this Ming is basically solved. The comparison results of Hugh 1 and Table 2. 1 audio and audio test results
Ga s.S (1 結果  Ga s.S (1 result
-35.0dB 8.24dB (38.70% o O  -35.0dB 8.24dB (38.70% o O
-30.0dB 13.24dB (21.77% o O  -30.0dB 13.24dB (21.77% o O
-25.0dB 22.36dB (7.62% o O  -25.0dB 22.36dB (7.62% o O
-20.0dB 27.37dB (4.28% o O  -20.0dB 27.37dB (4.28% o O
-15.0dB 31.35dB (2.71% o O  -15.0dB 31.35dB (2.71% o O
-10.0dB 35.76dB (1.63% O  -10.0dB 35.76dB (1.63% O
-5.0dB 40.76dB (0.92% O  -5.0dB 40.76dB (0.92% O
0 B 41.96dB (0.80% O  0 B 41.96dB (0.80% O
3.3dB (5.0dB 43.58dB (0.66% O  3.3dB (5.0dB 43.58dB (0.66% O
3.3dB ( . dB 42.91dB (0.72% O 3.3dB ( . dB 42.91dB (0.72% O
1 1中 "Ga " 音頻 的增益， " s.(S ( ))" 。 2 本 的音頻 裝置 的 音頻 的 測試結果  The gain of "Ga" audio in 1 1 , " s.(S ( ))" . 2 audio test results of the audio device
Ga s.(S (1 結果  Ga s.(S (1 result)
-35.0dB 20.18dB (9.79% O  -35.0dB 20.18dB (9.79% O
-30.0dB 25.24dB (5.47% O  -30.0dB 25.24dB (5.47% O
-25.0dB 28.95dB (3.57% O  -25.0dB 28.95dB (3.57% O
-20.0dB 33.79dB (2.04% O  -20.0dB 33.79dB (2.04% O
-15.0dB 38.04dB (1.25% O  -15.0dB 38.04dB (1.25% O
-10.0dB 41.58dB (0.83% O  -10.0dB 41.58dB (0.83% O
-5.0dB 45.11dB (0.56% O  -5.0dB 45.11dB (0.56% O
-0.5dB (0.0dB 45.26dB (0.55% O  -0.5dB (0.0dB 45.26dB (0.55% O
-0.5dB (5.0dB 45.84dB (0.51% O  -0.5dB (5.0dB 45.84dB (0.51% O
-0.5dB ( . dB 45.37dB (0.54% O -0.5dB ( . dB 45.37dB (0.54% O
2 2中 "Ga " 音頻 的增益， " s.(S ( ))" 。 本 明中的音頻 的消除方法包括 置 音頻 的 完全相同的 ， 參考 平信 其中， 相同的 包括 路中的 、 的 、 長度， 以及 的外部 等都相同 將上 出的音頻 似 參考 平信 再 大， 作力音頻 。 其中， 將上 出的 音頻 參考 平信 大， 將音頻 似 參考 平信 ， 再 大到 音頻 似 前的 。 2 2 "Ga" audio gain, " s.(S ( ))" . The method for canceling the audio in the present invention includes the identical audio of the reference, and the reference to the plain signal, the same including the in-path, the length, and the external, etc. are all the same, and the audio-like reference to the letter is further increased. Audio. Among them, the audio reference will be sent to the letter, and the audio will be referred to as a flat letter, and then the audio will be as high as before.
。 ， 音頻 的 和 參考 平信 的 同的同 在0． 5 至 同。  . , the audio and the reference letter of the same with 0. 5 to the same.
本 明中的音頻 的消除方法的 休 方式 前述本  The method of canceling the audio in the present invention
的音頻 裝置中相 ， 里不再 。  The phase of the audio device is no longer available.
本 于 、 固定 等具有 功能的終端。  A terminal with functions such as , , and fixed.
以上 ， 力本 的較佳 而已， 非 于限定本 的保  Above, the best of the power, not the limit

Claims

要求 Claim
1、 的音頻 裝置， 包括音頻 生成羊元和第 ， 其特 在于， 裝置近包括 參考 平信 生成羊 、 第二 和 羊 其中，  1, the audio device, including the audio generation sheep and the first, the special is that the device includes reference to the letter generating sheep, the second and the sheep,
所述音頻 生成羊 生成音頻 似 ， 通 第  The audio generation sheep generates audio like
羊  Sheep
所述參考 平信 生成羊 生成參考 平信 ， 通 第二  The reference letter generates a sheep to generate a reference letter, the second
羊 的音頻 ， 作力音頻 。  Sheep's audio, effort audio.
2、 要求 1 的裝置， 其特 在于， 第 和 第二 的信 特性完全相同。  2. The device of claim 1 is characterized in that the first and second letter characteristics are identical.
3、 要求2 的裝置， 其特 在于， 第 和 第二 同的同 在0． 5 至 m 同。 3. The device of claim 2, characterized in that the second and the same are at 0. 5 to m with.
4、 要求 1 的裝置， 其特 在于， 第 和 第二 路平行。  4. The device of claim 1 is characterized in that the first and second paths are parallel.
5、 要求 1 的裝置， 其特 在于， 羊 生成 修 的音頻 ， 大， 生成修 的音頻 。  5. The device of claim 1 is characterized in that the sheep generates the repaired audio, which is large, and generates the repaired audio.
6、 要求 1至5任 項 的裝置， 其特 在于，  6. A device requiring any of items 1 to 5, characterized in that
羊 大器。  Large sheep.
7、 要求 1至5任 項 的裝置， 其特 在于， 參考 平信 生成羊 包括 的第 和第二 ， 第 和  7. The device of claim 1 to 5, which is characterized by reference to the first and second, and
同的 作力參考 平信 所述參考 平信 的 值不 等于 音頻 似 的 。 The same effort refers to the value of the reference letter mentioned in the letter. Equal to audio.
8、 要求7 的裝置， 其特 在于， 音頻 生成羊 凡。  8. The device of claim 7, which is characterized in that the audio is generated by the sheep.
9、 音頻 的消除方法， 其特 在于， 方法包括 ， 作力音頻 。  9. Audio cancellation method, the method comprising: working with audio.
10、 要求 9 的方法， 其特 在于， 音頻 似  10. The method of claim 9, which is characterized by audio
11、 要求 10 的方法， 其特 在于， 生成修 的 ， 11. The method of claim 10, which is characterized by the generation of repairs,
將 音頻 似 參考 平信 再 大， 生成修 的音頻 。  The audio is similar to the reference letter and the repaired audio is generated.
12、 要求 10或 11 的方法， 其特 在于， 13、 要求 12 的方法， 其特 在于， 音頻 的 和 參考 平信 的 同的同 在 0． 5 至 同。  12. The method of claim 10 or 11, which is characterized in that, the method of claim 12 is characterized in that the audio and the reference letter are the same. 5 to the same.
PCT/CN2010/071495 2009-12-24 2010-04-01 Audio input device for preventing noise interference and method for eliminating audio noise interference WO2010148694A1 (en)

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