CN109803208A - A kind of audio file processing method and electronic device - Google Patents
A kind of audio file processing method and electronic device Download PDFInfo
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- CN109803208A CN109803208A CN201910100710.4A CN201910100710A CN109803208A CN 109803208 A CN109803208 A CN 109803208A CN 201910100710 A CN201910100710 A CN 201910100710A CN 109803208 A CN109803208 A CN 109803208A
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Abstract
The present invention provides a kind of audio file processing method, comprising the following steps: obtains the first recording of the predetermined sound effect of the first audio file；The first audio file, which is adjusted, using balanced device obtains the second audio file；Second audio file is played using the first audio playing module and records the second recording；Compare the first recording and the second recording, if the two is coincide, the second audio file is that the audio file that can reach predetermined sound effect is played using the first audio playing module.The present invention also provides a kind of electronic devices.Audio file processing method provided by the invention and electronic device, audio file adjusted is played using the audio playing module of low cost, obtain the second recording, compare the first recording and the second recording of the predetermined sound effect of the audio file, if the two is coincide, audio file adjusted is played using the audio playing module of low cost, the cost of audio playing module can be reduced, predetermined sound effect can be reached again, improve user experience.
Description
Technical field
The present invention relates to automotive fields, and in particular to a kind of audio file processing method and electronic device.
Background technique
Audio frequency range can be generally divided into four frequency ranges, i.e. low-frequency range (30~150Hz)；Mid Frequency (150~
500Hz)；Medium-high frequency section (500~5000Hz)；High band (5000~20000Hz).Wherein, 30~150Hz frequency range: Neng Goubiao
The low-frequency component of existing music, makes appreciator experience strong and powerful innervation；150~500Hz frequency range: single strike can be showed
Expressive force of the musical instrument in music is the part that dynamics is expressed in low frequency；500~5000Hz frequency range: mainly representation language is clear
The expressive force of clear degree and string music；5000~20000Hz frequency range: the brightness of main expression music, but can excessively make sound hair broken.
The automobile of different class would generally select the sound equipment (audio playing module) of different class to arrange in pairs or groups therewith, such as low-grade
Automobile would generally configure low-grade sound equipment, cover 150-15KHz, total power is distorted > 20%；The automobile of middle-grade would generally match
The sound equipment of middle-grade is set, 80-18KHz is covered, total power is distorted > 5%；High-grade automobile would generally configure high-grade sound equipment,
45-20KHz is covered, total power is distorted > 2%.
The different sound equipment of class is in terms of frequency coverage, and especially low-frequency range, the expressive force of Mid Frequency have apparent poor
It is different, this point can be experienced when appreciating music using sound equipment from everyone.
No matter the sound equipment of what class is selected, and automaker must consider from safety and cost angle, function and sound
Matter can be all restricted, but automaker also wishes under the conditions of cost is limited, provide better sound effect for user
Fruit, to improve user experience.
Summary of the invention
Aiming at the problems existing in the prior art, the problem to be solved in the present invention is to provide a kind of audio file processing sides
Method plays audio adjusted using the audio playing module of low cost using the different frequency range of balanced device adjustment audio file
File obtains the second recording, compares the first recording and the second recording of the predetermined sound effect of the audio file, if the two is kissed
It closes, in the actual use of electronic device, plays audio file adjusted using the audio playing module of low cost, can drop
The cost of bass playing module, and predetermined sound effect can be reached, improve user experience.
The present invention provides a kind of audio file processing method, comprising the following steps:
Obtain the first recording for playing the first audio file predetermined sound effect to be achieved；
The first audio file is adjusted using balanced device, obtains the second audio file；
Second audio file is played using the first audio playing module and records the second recording；
Compare the first recording and the second recording, if the first recording coincide with the second recording, the second audio file is to use
First audio playing module plays the audio file that can reach predetermined sound effect.
Further, the method also includes following steps:
Compare the first recording and the second recording, if the first recording is misfitted with the second recording, re-uses balanced device tune
Whole first audio file.
Further in obtain broadcasting the first audio file sound effect to be achieved first is recorded, including following step
It is rapid:
The first audio file, the sound of the second audio playing module are played using one or more second audio playing modules
It is of fine quality in the first audio playing module and record first recording；
Determine that one of those or the first recording play the first audio file as the first audio playing module and to reach pre-
Fixed sound effect.
Further, the first audio file is adjusted using balanced device, comprising the following steps:
The entire frequency range of first audio file is divided into multiple frequency ranges；
Gain process and/or attenuation processing are carried out to different frequency range.
Further, gain process and/or attenuation processing are carried out to different frequency range, comprising the following steps:
Frequency range for belonging to the recommended work frequency range of the first audio playing module carries out gain process,
And/or
Frequency range for being not belonging to the recommended work frequency range of the first audio playing module carries out attenuation processing.
Further, gain process and/or attenuation processing are carried out to different frequency range, further comprising the steps of:
Attenuation processing is carried out for the frequency range less than or equal to lower limit FL；
Frequency range for being higher than the upper limit FH of recommended work frequency range and less than or equal to first frequency F1 increases
Benefit reason.
Further, compare the first recording and the second recording, comprising the following steps:
It is compared using human ear；Or
Compare the first recording and the second recording using frequency response curve, if the frequency response curve of the first recording and the second recording
Frequency response curve maximum difference or mean difference be less than or equal to first threshold, first recording with second recording coincide, otherwise
First recording is misfitted with the second recording.
The present invention also provides a kind of electronic device, including processor, memory and the first audio playing module, memories
In be stored with using above-mentioned audio file processing method obtain the second audio file, the first audio playing module is in processor
Control is lower to play second audio file, to reach predetermined sound effect.
Further, electronic device is combination instrument or information entertainment.
Compared with prior art, audio file processing method provided by the invention and electronic device have below beneficial to effect
Fruit: using the different frequency range of balanced device adjustment audio file, audio adjusted is played using the audio playing module of low cost
File obtains the second recording, compares the first recording and the second recording of the predetermined sound effect of the audio file, if the two is kissed
It closes, in the actual use of electronic device, plays audio file adjusted using the audio playing module of low cost, can drop
The cost of bass playing module, and predetermined sound effect can be reached, improve user experience.
Detailed description of the invention
Fig. 1 is the sound pressure levels schematic diagram of the audio playing module of one embodiment of the present of invention；
Fig. 2 is the waveform diagram for the audio (the first audio file) that audio-source issues；
Fig. 3 is the frequency response curve figure for the audio that audio-source issues；
Fig. 4 is the waveform diagram of audio adjusted；
Fig. 5 is the frequency response curve figure of audio adjusted.
Specific embodiment
The electronic device of one embodiment of the present of invention, such as combination instrument, including processor, memory and the first sound
Frequency playing module.In the course of work of combination instrument, need to play the audio being stored in advance in memory.
Electronic device is also possible to information entertainment in other examples.
For low and middle-grade vehicles, from a cost perspective, automaker usually selects lower-cost first audio to play
Module.
If the first audio file is directly stored in memory, lower-cost first audio playing module plays the
One audio file is extremely difficult to scheduled sound effect.
In order to obtain better sound effect, it can select in audio playing module-luxury car of multiple higher costs and select
With the-the second audio playing module, plays the first audio file and record the first recording, therefrom select one or more first and record
Sound, scheduled sound effect will be reached by playing the first audio file as the first audio playing module.
Audio file processing method in the present embodiment, comprising the following steps:
Obtain the first recording for playing the first audio file predetermined sound effect to be achieved；
The first audio file is adjusted using balanced device, obtains the second audio file；
Second audio file is played using the first audio playing module and records the second recording；
Compare the first recording and the second recording, if the first recording coincide with the second recording, the second audio file is to use
First audio playing module plays the audio file that can reach predetermined sound effect.
Audio file processing method in the present embodiment, further comprising the steps of:
Compare the first recording and the second recording, if the first recording is misfitted with the second recording, re-uses balanced device tune
Whole first audio file.
In actual application, it usually needs adjust and compare repeatedly, can be only achieved satisfied sound effect.
Specifically, the audio-source used when adjustment, the first sound of sending are 400Hz, rising tone 800Hz and subsequent double
Sound lag effect, waveform diagram is as shown in Fig. 2, frequency response curve such as Fig. 3 shows.
Obtain the first recording for playing the first audio file sound effect to be achieved, comprising the following steps:
The first audio file, the sound of the second audio playing module are played using one or more second audio playing modules
It is of fine quality in the first audio playing module and record first recording；
Determine that one of those or the first recording play the first audio file as the first audio playing module and to reach pre-
Fixed sound effect.
The first audio file is adjusted using balanced device, comprising the following steps:
The entire frequency range of first audio file is divided into multiple frequency ranges；
Gain process and/or attenuation processing are carried out to different frequency range.
In the present embodiment, sound pressure levels (sound the pressure level, SPL) such as Fig. 1 of the first audio playing module
Shown, recommended work frequency range is 400Hz -12000Hz, and lower limit FL is 400Hz, and upper limit FH is 12000Hz.
In one embodiment, gain process and/or attenuation processing are carried out to different frequency range, comprising the following steps:
Frequency range for belonging to the recommended work frequency range of the first audio playing module carries out gain process, and/or
Frequency range for being not belonging to the recommended work frequency range of the first audio playing module carries out attenuation processing.
In another embodiment, the entire frequency range of the first audio file is divided into following frequency range:
(1) F < lower limit FL
(2) lower limit FL≤F <upper limit FH
(3) upper limit FH≤F < first frequency F1
(4) first frequency F1≤F
Gain process and/or attenuation processing are carried out to different frequency range, further comprising the steps of:
For being less than or equal to the frequency range of lower limit FL, i.e. frequency range (1), attenuation processing is carried out, this first audio of frequency range plays
Module response effect does not protrude, and volume promotion be easy to cause resonance；
For being higher than the upper limit FH of recommended work frequency range and being less than or equal to the frequency range of first frequency F1, i.e. frequency range
(4), gain process is carried out, this frequency range loudspeaker response effect is good, and sense of hearing volume, which is promoted, to be protruded.
4khz keeps gain effect with super band, increases the sense of hearing clarity of sound.
Waveform diagram after adjustment is as shown in figure 4, frequency response curve is as shown in Figure 5.
Compare the first recording and the second recording, comprising the following steps:
It is compared using human ear；Or
Compare the first recording and the second recording using frequency response curve, if the maximum difference of the frequency response curve of the two or flat
Equal difference is less than or equal to first threshold, and the first recording coincide with the second recording, and otherwise the first recording is misfitted with the second recording.
It in some applications, is compared using human ear, when the sound effect phase for thinking the first recording with the second recording
Closely, can receive, then the first recording coincide with the second recording.
In other applications, judges that the first recording coincide with the second recording by the way of quantization, utilize frequency response song
Line compares the first recording and the second recording, if the maximum difference or mean difference of the frequency response curve of the two are less than or equal to first
Threshold value, the first recording coincide with the second recording, and otherwise the first recording is misfitted with the second recording.
Although the present invention has been disclosed in the preferred embodiments as above, present invention is not limited to this.Any art technology
Personnel, made various changes and modification, should all be included in protection model of the invention without departing from the spirit and scope of the present invention
In enclosing, therefore protection scope of the present invention should be defined by the scope defined by the claims..
Claims (9)
1. a kind of audio file processing method, which is characterized in that the described method comprises the following steps:
Obtain the first recording for playing the first audio file predetermined sound effect to be achieved；
The first audio file is adjusted using balanced device, obtains the second audio file；
Second audio file is played using the first audio playing module and records the second recording；
Compare the first recording and the second recording, if the first recording coincide with the second recording, the second audio file is to use first
Audio playing module plays the audio file that can reach predetermined sound effect.
2. audio file processing method as described in claim 1, which is characterized in that the method also includes following steps:
Compare the first recording and the second recording, if the first recording is misfitted with the second recording, re-uses balanced device and adjust the
One audio file.
3. audio file processing method as described in claim 1, which is characterized in that obtaining the first audio file of broadcasting will reach
Sound effect first recording, comprising the following steps:
The first audio file is played using one or more second audio playing modules, the sound quality of the second audio playing module is excellent
In the first audio playing module and the first recording of recording；
Determine that one of those or the first recording play the first audio file as the first audio playing module and to reach scheduled
Sound effect.
4. audio file processing method as described in claim 1, which is characterized in that adjust the first audio text using balanced device
Part, comprising the following steps:
The entire frequency range of first audio file is divided into multiple frequency ranges；
Gain process and/or attenuation processing are carried out to different frequency range.
5. audio file processing method as claimed in claim 4, which is characterized in that different frequency range carry out gain process and/
Or attenuation processing, comprising the following steps:
Frequency range for belonging to the recommended work frequency range of the first audio playing module carries out gain process, and/or
Frequency range for being not belonging to the recommended work frequency range of the first audio playing module carries out attenuation processing.
6. audio file processing method as described in claim 1, which is characterized in that different frequency range carry out gain process and/
Or attenuation processing, it is further comprising the steps of:
Attenuation processing is carried out for the frequency range less than or equal to lower limit FL；
Frequency range for being higher than the upper limit FH of recommended work frequency range and less than or equal to first frequency F1 carries out at gain
Reason.
7. audio file processing method as described in claim 1, which is characterized in that compare the first recording and the second recording, packet
Include following steps:
It is compared using human ear；Or
Compare the first recording and the second recording using frequency response curve, if the frequency of the frequency response curve of the first recording and the second recording
The maximum difference or mean difference for ringing curve are less than or equal to first threshold, and the first recording coincide with the second recording, and otherwise first
Recording is misfitted with the second recording.
8. a kind of electronic device, which is characterized in that electronic device includes processor, memory and the first audio playing module,
The second audio file obtained using the described in any item audio file processing methods of claim 1-7 is stored in memory,
First audio playing module plays second audio file under the control of a processor, to reach predetermined sound effect.
9. electronic device as claimed in claim 8, which is characterized in that the electronic device is combination instrument or Infotainment system
System.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910100710.4A CN109803208B (en) | 2019-01-31 | 2019-01-31 | Audio file processing method and electronic device |
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| CN201910100710.4A CN109803208B (en) | 2019-01-31 | 2019-01-31 | Audio file processing method and electronic device |
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| CN109803208A true CN109803208A (en) | 2019-05-24 |
| CN109803208B CN109803208B (en) | 2021-06-11 |
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Cited By (1)
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| CN111312289A (en) * | 2020-03-05 | 2020-06-19 | 公安部第三研究所 | Preprocessing method and system for audio test |
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| CN106792365A (en) * | 2016-11-23 | 2017-05-31 | 广东小天才科技有限公司 | A kind of audio frequency playing method and device |
| CN106817656A (en) * | 2017-03-22 | 2017-06-09 | 维沃移动通信有限公司 | A kind of outer method and mobile terminal for putting sound system audio calibration |
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| CN109803208B (en) | 2021-06-11 |
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