WO2011069357A1 - Procédé et appareil permettant un réglage dynamique du volume - Google Patents

Procédé et appareil permettant un réglage dynamique du volume Download PDF

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Publication number
WO2011069357A1
WO2011069357A1 PCT/CN2010/073418 CN2010073418W WO2011069357A1 WO 2011069357 A1 WO2011069357 A1 WO 2011069357A1 CN 2010073418 W CN2010073418 W CN 2010073418W WO 2011069357 A1 WO2011069357 A1 WO 2011069357A1
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WO
WIPO (PCT)
Prior art keywords
volume
output
preset
step size
dynamic adjustment
Prior art date
Application number
PCT/CN2010/073418
Other languages
English (en)
Chinese (zh)
Inventor
郑焕德
Original Assignee
腾讯科技（深圳）有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 腾讯科技（深圳）有限公司 filed Critical 腾讯科技（深圳）有限公司
Priority to BR112012009101A priority Critical patent/BR112012009101A8/pt
Priority to RU2012109205/08A priority patent/RU2012109205A/ru
Priority to CA2773279A priority patent/CA2773279A1/fr
Priority to MX2012004675A priority patent/MX2012004675A/es
Priority to US13/395,335 priority patent/US20120170772A1/en
Publication of WO2011069357A1 publication Critical patent/WO2011069357A1/fr
Priority to IN2799DEN2012 priority patent/IN2012DN02799A/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements

Definitions

  • the present invention relates to the field of multimedia technologies, and in particular, to a method and an apparatus for dynamically adjusting volume. Background technique
  • PCM Pulse-code Modulation
  • audio data is a digital method of analog signals. It divides the intensity of the signal into segments at the same spacing and then quantizes it with a unique digit (usually a binary). PCM is the audio data format supported in general sound cards.
  • the main purpose is to perform attenuation coefficient processing on the original audio data, and the gradation of the output volume is achieved by the gradation of the coefficients.
  • the original audio data PCM encoded audio data
  • the padding data in each format is multiplied by an attenuation coefficient, which can be achieved.
  • the effect of the sound is smaller or larger than the original data.
  • the audio data fill format is as follows:
  • the fade-in effect when the music starts playing can be achieved by multiplying the data segmentation at the end of the audio by a step by 1.0.
  • By increasing the coefficient to 0.0 you can achieve the fade-out effect before the end of music playback.
  • the problem to be solved by the present invention is to provide a method and a device for dynamically adjusting the volume, which can realize the effect of output volume gradation in various situations such as music playing, pause, stop or drag, and can also switch music or adjust.
  • the gentle transition of the volume at the volume makes the music play smoother and more feminine.
  • an embodiment of the present invention provides a method for dynamically adjusting a volume, including: a duration according to a preset volume gradation T, and a preset frequency gradation frequency? And a difference between the volume VI of the current output and the preset output volume V2, determining a step size I for dynamically adjusting the volume of the current output, and determining the manner of the dynamic adjustment according to the step length I;
  • the volume of the current output is dynamically adjusted to the preset output volume V2 in accordance with the dynamically adjusted step size I and the manner of dynamic adjustment.
  • the embodiment of the present invention further provides a device for dynamically adjusting the volume, comprising: a first determining unit, configured to: according to a preset volume grading time ⁇ , a preset volume grading frequency F, and a current output a difference between the volume VI and the preset output volume V2, determining a step size I for dynamically adjusting the volume of the current output, and determining the manner of the dynamic adjustment according to the step length I;
  • a second determining unit configured to determine, according to the preset frequency F of the volume gradation, a period for dynamically adjusting the volume of the current output
  • a timing unit configured to time the period of the dynamic adjustment determined by the second determining unit; When the time is up, the volume of the current output is dynamically adjusted to the preset output volume V2 according to the step size I of the dynamic adjustment determined by the first determining unit and the manner of the dynamic adjustment.
  • the invention does not need to perform coefficient processing on the audio data filled in the sound card before playing, but performs periodic equal dynamic adjustment on the volume of the current output, thereby realizing music playing, pause, stop or drag, etc.
  • FIG. 1 is a schematic structural view of an embodiment of a device for dynamically adjusting volume of a sound according to the present invention
  • FIG. 2 is a schematic structural view of a first determining unit of an embodiment of the apparatus for dynamically adjusting the volume of the present invention
  • FIG. 3 is a schematic structural view of a dynamic adjustment unit of an embodiment of the apparatus for dynamically adjusting the volume of the present invention
  • FIG. 4 is a flow chart of a first embodiment of a method for dynamically adjusting volume volume according to the present invention
  • FIG. 5 is a schematic diagram of a fourth embodiment of a method for dynamically adjusting volume volume according to the present invention.
  • FIG. 6 is a schematic diagram showing a volume change of a fourth embodiment of the method for dynamically adjusting the volume of the present invention
  • FIG. 7 is a schematic diagram of a fifth embodiment of the method for adjusting the volume of the volume according to the present invention.
  • FIG. 1 is a schematic structural diagram of an embodiment of a device for dynamically adjusting a volume according to the present invention. As shown in FIG. 1, the device includes: a first determining unit 10, a second determining unit 20, a timing unit 30, and a dynamic adjusting unit. 40.
  • the first determining unit 10 is configured to determine the current output according to the preset time T of the volume gradation, the frequency F of the preset volume grading, and the difference between the currently output volume VI and the preset output volume V2.
  • the volume is dynamically adjusted by a step size I, and the manner of the dynamic adjustment is determined according to the step size I;
  • FIG. 2 is a schematic structural diagram of a first determining unit of an apparatus for dynamically adjusting a volume according to the present invention.
  • the first determining unit 10 includes: a step determining unit 101 and Mode determination unit 102.
  • the volume VI of the current output currently set by the user is 100%, and the preset output volume V2 is 0 when the playback is stopped, assuming that the volume of the preset sound is elapsed.
  • the mode determining unit 102 is configured to determine, when the step size I calculated by the step determining unit 101 is a positive value, that the dynamic adjustment mode is an incremental adjustment, and the step size I calculated by the step determining unit 101 is negative.
  • the way to determine the dynamic adjustment is the decrement adjustment.
  • the step size is calculated according to the formula as described above.
  • the mode determining unit 102 can determine that the dynamic adjustment mode is incremental adjustment; if the step length is -1% according to the formula, and the step length I is a negative value, The mode determining unit 102 can determine that the dynamic adjustment mode is a degressive adjustment.
  • the volume of the current output is dynamically adjusted, wherein the volume of the current output includes: a volume output when the audio starts playing, a volume output when the audio is paused or ended, and a volume that is output when the audio playback progress is changed, and the switch is performed. Any one or more of the volume output when the song is played and the volume output when the audio volume is changed.
  • the second determining unit 20 is configured to determine a period for dynamically adjusting the volume of the current output according to the frequency F of the preset volume gradation;
  • the timing unit 30 is configured to time the period of the dynamic adjustment determined by the second determining unit 20; specifically, the timing unit 30 can be a timer, and the timing is performed according to the period of the dynamic adjustment.
  • the setting is that the timing of each cycle arrives once. Upon arrival, according to the dynamically adjusted step I of the first determining unit 10 and the dynamically adjusted The mode dynamically adjusts the volume of the current output to the preset output volume V2.
  • FIG. 3 is a schematic structural diagram of a dynamic adjustment unit according to an embodiment of a device for dynamically adjusting the volume of the present invention.
  • the dynamic adjustment unit 40 includes: an incremental adjustment unit 401 and a decreasing adjustment unit. 402.
  • the increment adjustment unit 401 is configured to: when the timing of the period of each of the dynamic adjustments is reached by the timing unit 30, increase the volume of the current output by an absolute value of the step size I, and output until the current The volume of the output is adjusted to the preset output volume V2.
  • the frequency F of the fade-in is changed every 10 milliseconds, and the period of the dynamic adjustment can be determined to be 10 In milliseconds
  • the step size I calculated according to the formula is 1%
  • the increment adjusting unit 401 increases the volume of the output by 1% every 10 milliseconds, and outputs it until the volume of the output reaches V2.
  • the decrement adjustment unit 402 is configured to: when the timing of the period of each of the dynamic adjustments is reached by the timing unit 30, reduce the volume of the current output by an absolute value of the step size I, and output the result until the current The volume of the output is adjusted to the preset output volume V2.
  • the frequency F that is gradually faded out is changed every 10 milliseconds, and the period of the dynamic adjustment can be determined to be 10 milliseconds, and the step length I calculated according to the formula is -1%. Then, the decrement adjustment unit 402 reduces the volume of the output by 1% every 10 milliseconds, and outputs it until the volume of the output reaches V2.
  • the dynamic adjustment of the volume is substantially a gradual processing of the volume, including fade-in processing or fade-out processing of the volume.
  • the incremental adjustment unit 401 is used for fade-in processing of the volume, the decrementing.
  • the adjustment unit 402 is used for the fade-out processing of the volume.
  • the invention does not need to perform coefficient processing on the audio data filled in the sound card before playing, but by periodically and equally adjusting the volume of the output, which can realize music playing, pause, stop or drag.
  • the output volume gradient effect at the same time, it can also achieve a smooth transition effect of the volume when switching music or adjusting the volume, so that the music is played more smoothly and softly.
  • FIG. 4 is a flowchart of a first embodiment of a method for dynamically adjusting volume volume according to the present invention, as shown in FIG. 4, the method includes:
  • the S101 includes:
  • step size I is a positive value
  • determining the manner of the dynamic adjustment is an incremental adjustment
  • the manner of determining the dynamic adjustment is a degressive adjustment.
  • the S103 includes:
  • the volume of the current output is increased by the absolute value of the step size I and output until the volume of the current output is adjusted to the preset output volume V2.
  • the volume of the current output is decreased by the absolute value of the step size I and output until the volume of the current output is adjusted to the preset output volume V2.
  • the volume of the current output is dynamically adjusted, wherein the volume of the current output includes: a volume output when the audio starts playing, a volume output when the audio is paused or ended, and a volume that is output when the audio playback progress is changed, and the switch is performed. Any one or more of the volume output when the song is played and the volume output when the audio volume is changed.
  • the dynamic adjustment of the volume is essentially a gradual processing of the volume, including fade-in processing or fade-out processing of the volume.
  • the incremental adjustment of the volume is generally a progressive processing of the volume, for the volume
  • the decrementing adjustment is generally a gradual processing of the volume.
  • the invention does not need to perform coefficient processing on the audio data filled in the sound card before playing, but performs periodic equal dynamic adjustment on the volume of the current output, thereby realizing music playing, pause, stop or drag, etc.
  • This embodiment is a progressive process for the volume outputted when the audio starts playing.
  • the invention does not need to perform coefficient processing on the audio data filled in the sound card in advance before playing, but realizes the gradual effect of the output volume when the music starts playing by periodically and equally adjusting the volume of the output. The music is played more smoothly and softly.
  • the following is a third embodiment of the method for dynamically adjusting the volume of the present invention.
  • This embodiment is a gradual processing of the volume output when the audio is paused or ended.
  • the set sound has a time T of 1000 milliseconds, and the frequency F of the volume is changed every 10 milliseconds, that is, 1/10, the current output of the current play set by the user.
  • a timer of 10 millisecond intervals can be used to change the volume of the sound output when the timing arrives, reducing the volume by 1% every 10 milliseconds until it reaches zero. until.
  • the fade-out processing can be performed 1000 milliseconds before the song is about to end. For example, if the audio duration is 30 seconds (30000 milliseconds) and the fade-out duration is 1000 milliseconds, then the playback will start to 29 minutes (29000 milliseconds).
  • the invention does not need to perform coefficient processing on the audio data filled in the sound card in advance before playing, but realizes the volume fade-out output when the music pauses or stops playing by periodically and equally adjusting the volume of the output.
  • the effect is to make the music play more smooth and soft.
  • FIG. 5 it is a schematic diagram of a fourth embodiment of the method for dynamically adjusting the volume of the present invention.
  • the present embodiment is a progressive and fade-in process for changing the volume of the audio playback progress.
  • the AE segment is the sound circular buffer
  • W is the audio data write position
  • the audio data is filled from the A position until the E position, after the buffer is filled, and then returned to the A position to continue to fill in the data.
  • P is the position where the sound card plays the data.
  • the sound card output takes the data from the A position to the E position. After the buffer data is played, it returns to the A position and continues to fetch the data until the E position. Assume that the data is filled in to the C position.
  • the user changes the playback progress at this time and wants to listen to another progress music.
  • the sound card buffer stores 1000 milliseconds of audio data, that is, the AE segment is played.
  • the audio data takes 1000 milliseconds.
  • the time T of the sound is required to be 300 milliseconds, and the calculation can be started from the A position for 300 milliseconds to stop at the B position, that is, the audio data of the AB segment is the sound to be gradually faded.
  • the position W of the write data can be located at the B position, and the new audio data after the progress is changed from the B position; assuming that the length of the sound that needs to be faded in is 500 milliseconds, the B position can be started to play for 500 milliseconds.
  • the D position that is, the audio data of the BD segment is the sound to be faded in.
  • the audio data of the AB segment currently being played is first faded out for 300 milliseconds, and the volume is gradually determined according to the setting.
  • the step size is reduced.
  • the output volume reaches 0, the fade-in of the sound starts.
  • the step size of the volume increase during fade-in is determined according to the setting, so that the output volume is gradually increased to the volume value set by the user.
  • . 6 is a schematic diagram of the volume change of the fourth embodiment of the method for adjusting the volume of the volume according to the present invention.
  • the ordinate of FIG. 6 is the volume coordinate
  • the abscissa is the time coordinate (corresponding to the user changing progress); It can be seen that when the playback progress is changed, the music is smoother when switching to new audio data.
  • the invention does not need to perform coefficient processing on the audio data filled in the sound card in advance before playing, but realizes the effect of volume grading output when the music is dragged by periodically and equally adjusting the volume of the output. The music is played more smoothly and softly.
  • FIG. 7 a schematic diagram of a fifth embodiment of a method for dynamically adjusting the volume of the present invention is provided.
  • the present embodiment is a progressive and fade-in cross-integration process for switching songs during playback.
  • each song is played in its own independent thread, such as QQ music.
  • the thread where the song A is located is At the end of the playback, the sound of the song A is gradually ended, and the thread where the song B is located is gradually playing the song B.
  • the song A is on the thread
  • the A' segment is evolving
  • the song B is on the thread
  • the B segment is gradually entering.
  • the volume settings for the buffers are also independent, so that the cross-integration effect of the sound of the song A slowly disappears while the sound of the song B slowly appears.
  • the invention does not need to perform coefficient processing on the audio data filled in the sound card before playing, but By periodically and equally adjusting the volume of the output, a smooth transition effect of the output volume when switching music is achieved, and the music is played more smoothly and softly.
  • the invention does not need to perform coefficient processing on the audio data filled in the sound card before playing, but by periodically and equally adjusting the volume of the output, which can realize music playing, pause, stop or drag.
  • the output volume gradient effect at the same time, it can also achieve a smooth transition effect of the volume when switching music or adjusting the volume, so that the music is played more smoothly and softly.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)

Abstract

La présente invention se rapporte à un procédé permettant un réglage dynamique du volume. Ledit procédé consiste à : déterminer une taille (I) de progrès de réglage dynamique du volume de sortie selon l'intervalle de temps (T) prédéterminé du volume faiblissant, la fréquence (F) prédéterminée du volume faiblissant et la différence entre le volume de sortie prédéterminé (V2) et l'actuel volume de sortie (V1), et déterminer un mode de réglage dynamique sur la base de la taille (I) de progrès; déterminer la période de réglage dynamique de l'actuel volume de sortie sous forme de fréquence (F) prédéterminée du volume faiblissant; régler dynamiquement l'actuel volume de sortie au volume de sortie prédéterminé (V2) selon la taille (I) de progrès de réglage dynamique et le mode de réglage dynamique lorsque chaque période arrive. Par conséquent, la présente invention se rapporte également à un appareil permettant un réglage dynamique du volume. L'invention permet l'effet de fondu du volume de sortie pendant la lecture, la mise sur pause, l'arrêt ou l'entraînement de la musique, etc. et l'effet fluide de la transition de volume pendant un changement de musique ou un réglage du volume, ce qui permet de rendre la lecture de la musique plus confortable et plus mélodieuse.
PCT/CN2010/073418 2009-12-10 2010-06-01 Procédé et appareil permettant un réglage dynamique du volume WO2011069357A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BR112012009101A BR112012009101A8 (pt) 2009-12-10 2010-06-01 Método e aparelho para ajustar o volume dinamicamente
RU2012109205/08A RU2012109205A (ru) 2009-12-10 2010-06-01 Способ и устройство для динамической регулировки громкости
CA2773279A CA2773279A1 (fr) 2009-12-10 2010-06-01 Procede et appareil permettant un reglage dynamique du volume
MX2012004675A MX2012004675A (es) 2009-12-10 2010-06-01 Metodo y aparato para ajustar dinamicamente el volumen.
US13/395,335 US20120170772A1 (en) 2009-12-10 2010-06-01 Method and apparatus for dynamically adjusting volume
IN2799DEN2012 IN2012DN02799A (fr) 2009-12-10 2012-04-02

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2009101888067A CN102098606A (zh) 2009-12-10 2009-12-10 一种音量动态调节的方法及装置
CN2009101888067 2009-12-10

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WO2011069357A1 true WO2011069357A1 (fr) 2011-06-16

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US (1) US20120170772A1 (fr)
CN (1) CN102098606A (fr)
BR (1) BR112012009101A8 (fr)
CA (1) CA2773279A1 (fr)
IN (1) IN2012DN02799A (fr)
MX (1) MX2012004675A (fr)
RU (1) RU2012109205A (fr)
WO (1) WO2011069357A1 (fr)

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WO2015024409A1 (fr) * 2013-08-20 2015-02-26 Tencent Technology (Shenzhen) Company Limited Procédé d'appel audio et dispositif associé
CN104538047A (zh) * 2015-02-03 2015-04-22 环旭电子股份有限公司 携带式电子装置的音频控制方法
CN111640446B (zh) * 2020-06-24 2023-03-10 北京百瑞互联技术有限公司 一种基于音频编码器的响度均衡方法、编码器及蓝牙设备
CN116095361A (zh) * 2023-01-16 2023-05-09 珠海金山数字网络科技有限公司 音频处理方法及装置

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RU2012109205A (ru) 2013-09-20
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CA2773279A1 (fr) 2011-06-16
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