CN101600132B - Method and device for adjusting audio file play effect on portable handheld device - Google Patents
Method and device for adjusting audio file play effect on portable handheld device Download PDFInfo
- Publication number
- CN101600132B CN101600132B CN200910086493.4A CN200910086493A CN101600132B CN 101600132 B CN101600132 B CN 101600132B CN 200910086493 A CN200910086493 A CN 200910086493A CN 101600132 B CN101600132 B CN 101600132B
- Authority
- CN
- China
- Prior art keywords
- audio file
- frequency response
- pressure level
- sound pressure
- frequency
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000000694 effects Effects 0.000 title claims abstract description 19
- 230000005236 sound signal Effects 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention provides a method and a device for adjusting audio file play effect on a portable handheld device. The method comprises the following steps: acquiring a first frequency response of a first audio file and a second frequency response of a loudspeaker of the portable handheld device; comparing sound pressure level differential values between the first frequency response and the second frequency response on each frequency range, and reducing the sound pressure level differential values by balancedly adjusting the first audio file, and obtaining the second a second audio file; and raising a set value of the sound pressure level amplitude of the second audio file under a preset frequency, and obtaining a third audio file. According to the invention, the play effect of the audio files and listening experience of users can be improved.
Description
Technical field
The present invention relates to audio signal processing technique field, be specifically related to a kind of method and device that regulates audio file play effect on portable handheld device.
Background technology
Nowadays various portable handheld devices, as mobile phone, MP3/MP4 player, PSP game machine etc., have greatly enriched daily life.For consideration easy to carry, the common machine volume of these handheld devices is less.
Be limited to the size of equipment cavity, the loud speaker of installing in these handheld devices (Speaker) and sound chamber are conventionally all smaller, and then cause the sound effect that these handheld devices are play can not be fully up to expectations.For example, when displaying audio file, conventionally all can there is the shortcoming of bass deficiency, have influence on user's experience.
Summary of the invention
Embodiment of the present invention technical problem to be solved is to provide a kind of method and device that regulates audio file play effect on portable handheld device, for improving the result of broadcast of audio file, improves user's experience.
For solving the problems of the technologies described above, the embodiment of the present invention provides scheme as follows:
A method that regulates audio file play effect on portable handheld device, comprises the following steps:
Obtain the second frequency response of the first frequency response of the first audio file and the loud speaker of described portable handheld device;
More described first frequency response and the sound pressure level difference of described second frequency response in each frequency range, and regulate by described the first audio file being carried out to equilibrium, reduce described sound pressure level difference, obtain the second audio file;
Sound pressure level amplitude by described the second audio file under preset frequency improves predetermined value, obtains the 3rd audio file.
Preferably, in said method, also comprise:
Described the 3rd audio file is decoded and digital-to-analogue conversion processing, obtain simulated audio signal and export described loud speaker to.
Preferably, in said method, before described balanced adjusting, further judge whether described sound pressure level difference exceeds reservation threshold, if so, carry out described balanced adjusting; Otherwise, do not carry out described balanced adjusting, directly using described the first audio file as described the second audio file.
Preferably, in said method, described predetermined value is more than or equal to 3dB and is less than or equal to 6dB.
Preferably, in said method, the power output of described simulated audio signal is no more than the power output of described loud speaker.
The embodiment of the present invention also provides a kind of device that regulates audio file play effect, comprising:
Frequency response acquiring unit, for obtaining the second frequency response of the first frequency response of the first audio file and the loud speaker of portable handheld device;
Balanced regulon, the sound pressure level difference in each frequency range for more described first frequency response and the response of described second frequency, and regulate by described the first audio file being carried out to equilibrium, reduce described sound pressure level difference, obtain the second audio file;
Low frequency regulon, for the sound pressure level amplitude under preset frequency improves predetermined value by described the second audio file, obtains the 3rd audio file.
Preferably, in said apparatus, also comprise:
Output unit, for described the 3rd audio file being decoded and digital-to-analogue conversion processing, obtains simulated audio signal and exports described loud speaker to.
Preferably, in said apparatus, described balanced regulon, also, for before described balanced adjusting, judges whether described sound pressure level difference exceeds reservation threshold, if so, carries out described balanced adjusting; Otherwise, do not carry out described balanced adjusting, directly using described the first audio file as described the second audio file.
Preferably, in said apparatus, described predetermined value is more than or equal to 3dB and is less than or equal to 6dB.
Preferably, in said apparatus, the power output of described simulated audio signal is no more than the power output of described loud speaker.
From the above, can find out, the method that regulates audio file play effect on portable handheld device and device that the embodiment of the present invention provides, by audio file being carried out to equilibrium, regulate, difference between its frequency response and the frequency response of loud speaker is reduced, thereby make to be more matched with described loud speaker according to the resulting simulated audio signal of audio file after regulating, improved the result of broadcast of audio file.And, the embodiment of the present invention also sound pressure level of the low frequency part by the audio file after equilibrium is regulated is carried out the raising of a predetermined value, make the low frequency part of audio file when being play by portable handheld device more full, improved user's the sense of hearing and experienced.
Accompanying drawing explanation
Fig. 1 is the flow chart that regulates the method for audio file play effect described in the embodiment of the present invention;
Fig. 2 is the structural representation that regulates the device of audio file play effect described in the embodiment of the present invention.
Embodiment
The embodiment of the present invention is by analyzing in advance the frequency response that obtains audio file to be played, then by audio file is carried out to equilibrium (EQ, Equalization) regulate, make the frequency response of this audio file and the frequency response of loud speaker consistent as much as possible, reach the object of improving audio file play effect.Below in conjunction with accompanying drawing, by specific embodiment, the present invention will be further described.
As shown in Figure 1, a kind of method that regulates audio file play effect on portable handheld device that the embodiment of the present invention provides, specifically comprises the following steps:
Step 11, obtains the frequency response of the first audio file to be played and the frequency response of the loud speaker of described portable handheld device.
For calling conveniently, below all the frequency response of audio file is called to first frequency response, the frequency response of loud speaker is called to second frequency response.Wherein, second frequency response has reflected the main frequency scope of speaker operation.When giving in addition constant voltage signal source while changing signal source frequency by low frequency to high frequency of loud speaker, the sound pressure level of loud speaker generation changes the variation with frequency, can draw thus sound pressure level-frequency curve, i.e. the frequency response of loud speaker.Here, in order more to approach actual service condition, when the response of test second frequency, can carry out frequency response test to the loud speaker being arranged in sound chamber, to obtain the frequency response of loud speaker under actual working environment.
When the frequency response of test audio file to be played, can utilize music editor's software, as CoolEdit Pro, Sound Forge, and the software such as the Wavelab frequency response of measuring this audio file, concrete can be the envelope that gathers the frequency response of this audio file during whole broadcasting, and this envelope is responded as described first frequency.
Here, the response of first/second frequency is sound pressure level-frequency curve, and sound pressure level is the result obtaining after the ratio of acoustic pressure and a certain reference value is taken the logarithm, and the unit of sound pressure level is decibel (dB).
Step 12, more described first frequency response and the sound pressure level difference of described second frequency response in each frequency range, and regulate by described the first audio file being carried out to equilibrium, reduce described sound pressure level difference,, obtain the second audio file.
After getting described first frequency response and the response of described second frequency, can utilize various music editor's software to carry out equilibrium to audio file to be played and regulate processing, reduce first frequency response and the sound pressure level difference of first frequency response in each frequency range, make described first frequency response consistent as much as possible with first frequency response.
Step 13, the sound pressure level amplitude by described the second audio file under preset frequency improves predetermined value, obtains the 3rd audio file.
Here, after having completed described balanced adjusting, the present embodiment can also further by described the second audio file, the sound pressure level amplitude under preset frequency (as 50Hz) improves predetermined value, as improves 3～6dB, and then preserves resulting audio file.The object of doing is like this, because portable set is by there being the shortcoming of bass deficiency, by improving the sound pressure level of low frequency part, can improve bass result of broadcast.
Step 14, decodes and digital-to-analogue conversion processing to described the 3rd audio file, obtains simulated audio signal and exports described loud speaker to.
Here, the power output of described simulated audio signal is no more than the power output of described loud speaker.Like this, the resulting simulated audio signal of audio file according to after equilibrium adjusting and bass boost processing, is more matched with described loud speaker, and its low frequency part is also more full, thereby audio file can obtain good result of broadcast, greatly improved user's the sense of hearing and experienced.
Preferably, the present embodiment, in above-mentioned steps 12, before carrying out described balanced adjusting, further judges whether described sound pressure level difference exceeds reservation threshold, if so, carries out described balanced adjusting; Otherwise, do not carry out described balanced adjusting, directly using described the first audio file as described the second audio file.
Method based on above-mentioned adjusting audio file play effect, the present embodiment also provides a kind of device that regulates audio file play effect, this device can be arranged in portable handheld device, can improve the result of broadcast of audio file, improves user's sense of hearing and experiences.As shown in Figure 2, this device specifically comprises:
Frequency response acquiring unit 21, for obtaining the second frequency response of the first frequency response of the first audio file and the loud speaker of portable handheld device;
Balanced regulon 22, the sound pressure level difference in each frequency range for more described first frequency response and the response of described second frequency, and regulate by described the first audio file being carried out to equilibrium, reduce described sound pressure level difference, obtain the second audio file;
Low frequency regulon 23, for the sound pressure level amplitude under preset frequency improves predetermined value by described the second audio file, obtains the 3rd audio file;
Output unit 24, for described the 3rd audio file being decoded and digital-to-analogue conversion processing, obtains simulated audio signal and exports described loud speaker to.
Here, described predetermined value is more than or equal to 3dB and is less than or equal to 6dB.The power output of described simulated audio signal is no more than the power output of described loud speaker.
Preferably, above-mentioned balanced regulon 22, can also judge whether described sound pressure level difference exceeds reservation threshold for before described balanced adjusting, if so, carries out described balanced adjusting; Otherwise, do not carry out described balanced adjusting, directly using described the first audio file as described the second audio file.
In sum, the method that regulates audio file play effect on portable handheld device and device that the embodiment of the present invention provides, by audio file being carried out to equilibrium, regulate, make its frequency response consistent with the frequency response of loud speaker, thereby improved the result of broadcast of audio file and user's sense of hearing experience.
The above is only embodiments of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. on portable handheld device, regulate a method for audio file play effect, it is characterized in that, comprise the following steps:
Obtain the second frequency response of the first frequency response of the first audio file and the loud speaker of described portable handheld device;
More described first frequency response and the sound pressure level difference of described second frequency response in each frequency range, and regulate by described the first audio file being carried out to equilibrium, reduce described sound pressure level difference, obtain the second audio file;
Sound pressure level amplitude by described the second audio file under preset frequency improves predetermined value, obtains the 3rd audio file.
2. the method for claim 1, is characterized in that, also comprises:
Described the 3rd audio file is decoded and digital-to-analogue conversion processing, obtain simulated audio signal and export described loud speaker to.
3. the method for claim 1, is characterized in that, before described balanced adjusting, further judges whether described sound pressure level difference exceeds reservation threshold, if so, carries out described balanced adjusting; Otherwise, do not carry out described balanced adjusting, directly using described the first audio file as described the second audio file.
4. the method for claim 1, is characterized in that, described predetermined value is more than or equal to 3dB and is less than or equal to 6dB.
5. method as claimed in claim 2, is characterized in that, the power output of described simulated audio signal is no more than the power output of described loud speaker.
6. a device that regulates audio file play effect, is characterized in that, comprising:
Frequency response acquiring unit, for obtaining the second frequency response of the first frequency response of the first audio file and the loud speaker of portable handheld device;
Balanced regulon, the sound pressure level difference in each frequency range for more described first frequency response and the response of described second frequency, and regulate by described the first audio file being carried out to equilibrium, reduce described sound pressure level difference, obtain the second audio file;
Low frequency regulon, for the sound pressure level amplitude under preset frequency improves predetermined value by described the second audio file, obtains the 3rd audio file.
7. device as claimed in claim 6, is characterized in that, also comprises:
Output unit, for described the 3rd audio file being decoded and digital-to-analogue conversion processing, obtains simulated audio signal and exports described loud speaker to.
8. device as claimed in claim 6, is characterized in that,
Described balanced regulon, also, for before described balanced adjusting, judges whether described sound pressure level difference exceeds reservation threshold, if so, carries out described balanced adjusting; Otherwise, do not carry out described balanced adjusting, directly using described the first audio file as described the second audio file.
9. device as claimed in claim 6, is characterized in that, described predetermined value is more than or equal to 3dB and is less than or equal to 6dB.
10. device as claimed in claim 7, is characterized in that, the power output of described simulated audio signal is no more than the power output of described loud speaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910086493.4A CN101600132B (en) | 2009-06-05 | 2009-06-05 | Method and device for adjusting audio file play effect on portable handheld device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910086493.4A CN101600132B (en) | 2009-06-05 | 2009-06-05 | Method and device for adjusting audio file play effect on portable handheld device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101600132A CN101600132A (en) | 2009-12-09 |
| CN101600132B true CN101600132B (en) | 2014-11-19 |
Family
ID=41421334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910086493.4A Expired - Fee Related CN101600132B (en) | 2009-06-05 | 2009-06-05 | Method and device for adjusting audio file play effect on portable handheld device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101600132B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103744666A (en) * | 2013-12-23 | 2014-04-23 | 乐视致新电子科技（天津）有限公司 | Method and device for adjusting audio frequencies in Android device |
| US9843862B2 (en) | 2015-08-05 | 2017-12-12 | Infineon Technologies Ag | System and method for a pumping speaker |
| CN107566951B (en) * | 2016-07-01 | 2020-02-07 | 北京小米移动软件有限公司 | Audio signal processing method and device |
| CN110838210A (en) * | 2018-08-16 | 2020-02-25 | 北汽福田汽车股份有限公司 | Alarm method, alarm device and storage medium |
| CN109274909B (en) * | 2018-09-19 | 2021-04-16 | 深圳创维－Rgb电子有限公司 | Television sound adjusting method, television and storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1388726A (en) * | 2001-05-30 | 2003-01-01 | 英业达股份有限公司 | Automatic loudspeaker frequency response equating regulation system and method |
-
2009
- 2009-06-05 CN CN200910086493.4A patent/CN101600132B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1388726A (en) * | 2001-05-30 | 2003-01-01 | 英业达股份有限公司 | Automatic loudspeaker frequency response equating regulation system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101600132A (en) | 2009-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102893633B (en) | Audio system equalization for portable media playback devices | |
| CN202841468U (en) | Bluetooth earphone with hearing-aid and anti-noise functions | |
| CN105554674A (en) | Microphone calibration method, device and mobile terminal | |
| CN102610229B (en) | Method, apparatus and device for audio dynamic range compression | |
| CN106713794B (en) | Method for adjusting audio balance and audio system for providing balance adjustment | |
| KR20120036854A (en) | Method and circuit for controlling an output of an audio signal of a battery-powered device | |
| CN103702253B (en) | A kind of information processing method and electronic equipment | |
| CN101600132B (en) | Method and device for adjusting audio file play effect on portable handheld device | |
| CN101667814A (en) | Audio playing method and audio player | |
| CN104811155A (en) | Balance device adjusting method and device | |
| US10506323B2 (en) | User customizable headphone system | |
| CN101641965A (en) | Acoustic processing system and method for electronic device and mobile telephone terminal | |
| CN101162894A (en) | Sound-effect processing equipment and method | |
| CN110324751A (en) | Pleasant structural recognition method, sound quality adjusting method and the earphone of earphone | |
| CN105262887B (en) | Mobile terminal and audio setting method thereof | |
| JP2013083983A (en) | Device and method for reproducing audio signal | |
| CN105276751A (en) | Voice playing method and system | |
| CN107479852B (en) | Volume adjusting method, device, terminal device and storage medium | |
| JP2019176477A (en) | Arrangement method of wireless loudspeaker, wireless loudspeaker, and terminal device | |
| CN113553022A (en) | Equipment adjusting method and device, mobile terminal and storage medium | |
| CN105764008B (en) | A kind of method and device for debugging sound reinforcement system transmission frequency characteristic | |
| CN101257533A (en) | Mobile terminal for intellectualized controlling sound volume of loudspeaker and its implementing method | |
| CN102568512A (en) | Method and device of volume control | |
| CN108235215B (en) | Wire control earphone testing device and testing circuit thereof | |
| CN103297896B (en) | A kind of audio-frequency inputting method and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20170605 |