CN103188585B - Audio frequency adjusting device and method of adjustment thereof - Google Patents
Audio frequency adjusting device and method of adjustment thereof Download PDFInfo
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Abstract
A kind of audio frequency adjusting device, comprises a memory and a processor.This memory previously inputted audio sample for storing one.This processor is electrically connected on this memory and inputs audio sample at present for receiving one, and the environment audio sample that reception one is relevant to ambient sound, and this stored by this memory previously inputted audio sample and this environment audio sample, obtain an audio distortion sample, and input audio sample at present according to this audio distortion sample and this, obtain a processed audio sample.
Description
Technical field
The present invention relates to a kind of audio frequency adjusting device and method of adjustment thereof, particularly relate to a kind of audio frequency adjusting device and the method for adjustment thereof that automatically relatively can reduce noise.
Background technology
The size of the audio frequency that the devices such as TV general at present, sound equipment export all must via user from Row sum-equal matrix, and cannot environmentally the power of background noise automatically be adjusted to people's ear and can know the best volume of listening to; In addition, these devices also lack the function of the particular event that identification surrounding environment occurs, easily cause user because listoning music or viewing TV too drop into and ignore surrounding environment occur important particular event.
Summary of the invention
The object of the present invention is to provide a kind of audio frequency adjusting device that automatically relatively can reduce noise.
Audio frequency adjusting device of the present invention, comprises a memory and a processor.This memory previously inputted audio sample for storing one.This processor is electrically connected on this memory, audio sample is inputted at present for receiving one, and the environment audio sample that reception one is relevant to ambient sound, and this stored by this memory previously inputted audio sample and this environment audio sample, obtain an audio distortion sample, and input audio sample at present according to this audio distortion sample and this, obtain a processed audio sample.
This processor also judges whether to need identification particular event according to an identification instruction, and when judging that this identification instruction is set as needing this particular event of identification, whether occur according at least one this particular event of audio distortion sample identification in a preset period of time.
This processor also when picking out this particular event and occurring, sets an event lasting indication and an event occurring indication, and determines whether this warning indication be set as needing warning according to this event lasting indication and a warning indication.
This processor also cuts out instruction according to a warning and judges whether to stop warning, and when judging to stop warning, this warning indication is set as not needing warning.
This audio frequency adjusting device also comprises the attention device that is electrically connected on this processor, and this attention device for receiving this warning indication, and is set as sending warning when need warn in this warning indication, and stops sending warning when this warning indication is set as not needing warning.
This processor, also when this warning indication being set as warning, reduces this adjusted current audio size, using as the reference obtaining this processed audio sample.
This processor adjusts this according to this audio distortion size to input audio sample at present, to obtain this processed audio sample.
This processor be this environment audio sample is deducted stored by this memory this previously inputted audio sample, to obtain this audio distortion sample, and deduct this audio distortion sample again, to obtain this processed audio sample according to this size inputting audio sample at present of a Gain tuning.
Another object of the present invention is to provide a kind of audio regulation method that automatically relatively can reduce noise.
Audio regulation method of the present invention applies to a kind of audio-frequency adjusting system, and this audio-frequency adjusting system comprises a memory, an audio frequency acquisition device, processor, an output stage and a loud speaker.This memory storage one previously inputted audio sample, this audio frequency acquisition device acquisition ambient sound, to obtain an environment audio sample, this output stage is according to a processed audio sample, obtain an output audio sample, this output audio sample play by this loud speaker.This audio regulation method is performed by this processor, and comprises following steps:
(A) receive one and input audio sample at present;
(B) this environment audio sample is received;
(C) this stored by this memory previously inputted audio sample and this environment audio sample, obtained an audio distortion sample; And
(D) input audio sample at present according to this audio distortion sample and this, obtain this processed audio sample.
This step (D) comprises following sub-step:
(D1) adjust according to this audio distortion size the size that this inputs audio sample at present; And
(D2) according to this adjusted current input audio sample, this processed audio sample is obtained.
This step (D) comprises following sub-step:
(D1) according to a Gain tuning, this inputs the size of audio sample at present; And
(D2) according to this adjusted current input audio sample and this audio distortion sample, this processed audio sample is obtained.
This audio regulation method also comprises a step (E) of a setting warning indication, and this step (E) is included in the following sub-step after sub-step (D1):
(E1) judge whether to need identification particular event according to an identification instruction, if so, then jump to sub-step (E2), if not, then jump to sub-step (D2);
(E2) whether occur according at least one this particular event of audio distortion sample identification in a preset period of time, if so, then jump to sub-step (E3), if not, then jump to sub-step (E6);
(E3) set an event lasting indication and an event occurring indication, and be first this event lasting indication is set as being same as this event occurring indication, then this event occurring indication is set as yes;
(E4) according to this event lasting indication and this warning indication, judge whether the one in a first condition and a second condition is set up, if, then jump to sub-step (E5), if not, then jump to sub-step (D2), and this first condition is set to for this event lasting indication no, this second condition for this event lasting indication be set to be and this warning indication is set to need warning;
(E5) this warning indication is set as need warning, and reduces the size of this adjusted current input audio sample, and obtain this processed audio sample according to the current input audio sample that this has reduced, and jump to sub-step (E7);
(E6) set this event lasting indication, this event occurring indication, this warning indication and a warning and close instruction, and this event lasting indication, this event occurring indication and this warning closedown instruction are all set as no, and this warning indication be set as not needing warning, and jump to sub-step (D2);
This step (E) is also included in the following sub-step after sub-step (D2) and (E5):
(E7) close instruction according to this warning to judge whether to stop warning, if so, then jump to sub-step (E8), if not, then jump to step (A); And
(E8) this warning indication is set as do not need warning.
This audio regulation method also comprises a step (E) of a setting warning indication, and this step (E) is included in the following sub-step after sub-step (D1):
(E1) judge whether to need identification particular event according to an identification instruction, if so, then jump to sub-step (E2), if not, then jump to sub-step (D2);
(E2) whether occur according to this this particular event of audio distortion sample identification of at least one in this preset period of time, if so, then jump to sub-step (E3), if not, then jump to sub-step (E6);
(E3) set an event lasting indication and an event occurring indication, and be first this event lasting indication is set as being same as this event occurring indication, then this event occurring indication is set as yes;
(E4) according to this event lasting indication and this warning indication, judge whether the one in a first condition and a second condition is set up, if, then jump to sub-step (E5), if not, then jump to sub-step (D2), and this first condition is set to for this event lasting indication no, this second condition is set to be that and this warning indication is set to need warning for this event lasting indication;
(E5) this warning indication is set as need warning;
(E6) set this event lasting indication, this event occurring indication, this warning indication and a warning and close instruction, and this event lasting indication, this event occurring indication and this warning closedown instruction are all set as no, and this warning indication be set as not needing warning, and jump to sub-step (D2);
This step (E) is also included in the following sub-step after sub-step (D2):
(E7) close instruction according to this warning to judge whether to stop warning, if so, then jump to sub-step (E8), if not, then jump to step (A); And
(E8) this warning indication is set as do not need warning.
Useful effect of the present invention is: by obtaining this audio distortion sample relevant to ambient sound, and processing according to this audio distortion sample, automatically relatively can reduce noise.
Accompanying drawing explanation
Fig. 1 is a calcspar, and the first of audio frequency adjusting device of the present invention to the 3rd preferred embodiment is described;
Fig. 2 is a flow chart, and this audio regulation method performed by the first preferred embodiment is described;
Fig. 3 is a flow chart, and this audio regulation method performed by the second preferred embodiment is described;
Fig. 4 is a flow chart, and the audio regulation method performed by the 3rd preferred embodiment is described;
Fig. 5 is a calcspar, and the 4th and the 5th preferred embodiment of audio frequency adjusting device of the present invention is described;
Fig. 6 is a flow chart, and the audio regulation method performed by the 4th preferred embodiment is described; And
Fig. 7 is a flow chart, and the audio regulation method performed by the 5th preferred embodiment is described.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
Consult Fig. 1, the first preferred embodiment of audio frequency adjusting device 1 of the present invention is applicable to be electrically connected on an audio frequency acquisition device 2 and a loud speaker 3, to form an audio-frequency adjusting system.This audio frequency adjusting device 1 comprises the processor 12 that a memory 11, is electrically connected on this memory 11 and this audio frequency acquisition device 2, and an output stage 13 being electrically connected on this processor 12 and this loud speaker 3.This audio frequency acquisition device 2 (such as a microphone) for capturing ambient sound, to obtain an environment audio sample.This memory 11 has first memory space 111 and second memory space 112 of nothing common factor, and this first memory space 111 is for storing at least one input audio sample, and this second memory space 112 is for storing at least one audio distortion sample.This processed audio sample for receiving a digital processed audio sample, and is carried out numeral to analog-converted by this output stage 13, to obtain the output audio sample of a simulation.This loud speaker 3 is for playing this output audio sample.
Consult Fig. 1 and Fig. 2, this processor 12 is for performing a kind of audio regulation method.This audio regulation method comprises following steps 21 ~ 24.
Step 21: this processor 12 receives input audio sample A (t) at present, and this input audio sample A (t) is at present stored in this first memory space 111 of this memory 11.It should be noted that, before step 21, this first memory space 111 of this memory 11 has had the previous input audio sample A (t-Δ t) of this input audio sample A (t) at present, hereinafter referred to as previously input audio sample A (t-Δ t).
Step 22: this processor 12 receives this environment audio frequency sample B (t-Δ t) from this audio frequency acquisition device 2.
Step 23: this environment audio frequency sample B (t-Δ t) obtained in this previously input audio sample A (t-Δ t) stored by this memory 11 of this processor 12 and step 22, obtain an audio distortion sample f (t-Δ t), and this audio distortion sample f (t-Δ t) is stored in this second memory space 112 of this memory 11.
In the present embodiment, this processor 12 is these previously inputs audio sample A (t-Δ t) this environment audio frequency sample B (t-Δ t) deducted stored by this memory 11, to obtain this audio distortion sample f (t-Δ t), that is f (t-Δ t)=B (t-Δ t)-A (t-Δ t).
Step 24: the size of this audio distortion sample f (t-Δ t) of this processor 12 stored by this memory 11 adjusts and upgrades size of this input audio sample A (t) at present stored by this memory 11, and this adjusted current input audio sample A (t) stored by this memory 11 obtains this processed audio sample A ' (t).Then step 21 is jumped to.
In the present embodiment, this processor 12 is that this adjusted current input audio sample A (t) stored by this memory 11 is used as this processed audio sample A ' (t), that is A ' (t)=A (t).In addition, this processor 12 is when the size of this audio distortion sample f (t-Δ t) is bigger than normal, the size of this input audio sample A (t) at present stored by this memory 11 is tuned up, and when the size of this audio distortion sample f (t-Δ t) is less than normal, the size of this input audio sample A (t) at present stored by this memory 11 is turned down, to maintain a fixing signal to noise ratio (SignaltoNoiseRatio, SNR), therefore, environment is more noisy make the size of this audio distortion sample f (t-Δ t) larger time, the volume that this loud speaker 3 plays out also improves thereupon, and in the quieter size making this audio distortion sample f (t-Δ t) of environment more hour, the volume that this loud speaker 3 plays out also decreases, so, just can exempt user need from the trouble of Row sum-equal matrix volume.Moreover, the size of this adjusted current input audio sample A (t) that this processor 12 can limit stored by this memory 11 is no more than a higher limit preset, be such as 85dB, thus limiting volume that this loud speaker 3 plays out can not more than 85dB, with avoid the impaired hearing of user or this audio frequency adjusting device because of power output too high and impaired.
Consult Fig. 1 and Fig. 3, the second preferred embodiment of audio frequency adjusting device 1 of the present invention is similar to this first preferred embodiment, and difference is that this audio regulation method performed by this processor 12 comprises following steps 31 ~ 43.
Step 31: this processor 12 receives this input audio sample A (t) at present, and this input audio sample A (t) is at present stored in this first memory space 111 of this memory 11.It should be noted that, before step 31, this first memory space 111 of this memory 11 has had the previous input audio sample A (t-Δ t) of this input audio sample A (t) at present, hereinafter referred to as previously input audio sample A (t-Δ t).
Step 32: this processor 12 receives this environment audio frequency sample B (t-Δ t) from this audio frequency acquisition device 2.
Step 33: this environment audio frequency sample B (t-Δ t) obtained in this previously input audio sample A (t-Δ t) stored by this memory 11 of this processor 12 and step 32, obtain this audio distortion sample f (t-Δ t), such as f (t-Δ t)=B (t-Δ t)-A (t-Δ t), and this audio distortion sample f (t-Δ t) is stored in this second memory space 112 of this memory 11.
Step 34: the size of this audio distortion sample f (t-Δ t) of this processor 12 stored by this memory 11 adjusts and upgrades size of this input audio sample A (t) at present stored by this memory 11, such as when the size of this audio distortion sample f (t-Δ t) is bigger than normal, the size of this input audio sample A (t) at present stored by this memory 11 is tuned up, and when the size of this audio distortion sample f (t-Δ t) is less, the size of this input audio sample A (t) at present stored by this memory 11 is turned down, to maintain fixing signal to noise ratio, and the size limiting this adjusted current input audio sample A (t) stored by this memory 11 is no more than default higher limit.
Step 35: this processor 12 judges whether to need identification particular event (such as baby cry, sufferer groan calling for help, ring or door bell rings etc.) according to an identification instruction, if so, then jumps to step 36, if not, then jumps to step 41.This identification instruction is set by user.
Step 36: at least one the audio distortion sample f (t-n × Δ t) in the preset period of time of this processor 12 stored by this memory 11, n=1, ..., N, N >=1, whether this particular event of identification occurs, if, then jump to step 37, if not, then jump to step 40.It should be noted that then particular event judging nicety rate is relatively high if the quantity of audio distortion sample is abundant.
Step 37: this processor 12 sets an event lasting indication and an event occurring indication.This event lasting indication can be set to "Yes" (representing that this particular event continues to occur) or "No" (representing that this particular event does not continue to occur), and its initial value is "No".This event occurring indication can be set to "Yes" (representing that this particular event occurs) or "No" (representing that this particular event does not occur), and its initial value is "No".In step 37, this event lasting indication is first set as being same as this event occurring indication by this processor 12, then this event occurring indication is set as "Yes".
Step 38: this processor 12, according to this event lasting indication and a warning indication, judges whether the one in a first condition and a second condition is set up, if so, then jumps to step 39, if not, then jump to step 41.This warning indication can be set to warn or not need warning, and its initial value is not for needing warning.First condition is set to "No" for this event lasting indication.Second condition is set to "Yes" for this event lasting indication and this warning indication is set to need warning.
Step 39: this warning indication is set as needing warning by this processor 12, and reduce and upgrade the size of this adjusted current input audio sample A (t) stored by this memory 11, and this current input audio sample A (t) of having reduced stored by this memory 11 obtains this processed audio sample A ' (t), such as A ' (t)=A (t), to reduce the volume that this loud speaker 3 plays out, or even quiet, thus user can perceive the generation of this particular event relatively easily.Then step 42 is jumped to.
Step 40: this processor 12 sets this event lasting indication, this event occurring indication, this warning indication and a warning and cuts out instruction.This warning is closed instruction and can is set as "Yes" (represent and need stop warning) by user or be set as "No" (represent and do not need to stop warning) by this processor 12, and its initial value is "No".In step 40, this event lasting indication, this event occurring indication and this warning are closed instruction and are all set as "No" by this processor 12, and this warning indication are set as not needing warning.
Step 41: this processor 12 this adjusted current input audio sample A (t) stored by this memory 11 obtains this processed audio sample A ' (t), such as A ' (t)=A (t), whether the volume that this loud speaker 3 is played out does not occur and affects by particular event.
Step 42: this processor 12 cuts out instruction according to this warning and judges whether to stop warning, if so, then jumps to step 43, if not, then jumps to step 31.
Step 43: this warning indication is set as not needing warning by this processor 12.Then step 31 is jumped to.
In the present embodiment, by step 38, can make, when this particular event continues to occur and user selects to stop warning, to perform step 41 ~ 43, thus can not warning be reissued.
Consult Fig. 1 and Fig. 4, the 3rd preferred embodiment of audio frequency adjusting device 1 of the present invention is similar to this second preferred embodiment, and difference is the step 34 of this this audio regulation method performed by processor 12 ' and step 41 '.
Step 34 ': this processor 12 is according to a Gain tuning and the size upgrading this input audio sample A (t) at present stored by this memory 11, wherein, this gain can be a set point set by user, or the default value established in this audio frequency adjusting device 1.
Step 41 ': this adjusted current input audio sample A (t) stored by this memory 11 of this processor 12 and this audio distortion sample f (t-Δ t) obtain this processed audio sample A ' (t).
In the present embodiment, that this adjusted current input audio sample A (t) stored by this memory 11 is deducted this audio distortion sample f (t-Δ t), to obtain this processed audio sample A ' (t), that is A ' (t)=A (t)-f (t-Δ t).
It should be noted that, in first and second preferred embodiment, this processor 12 environment is noisy make the size of this audio distortion sample f (t-Δ t) bigger than normal time, this input audio sample A (t) at present stored by this memory 11 is tuned up and obtains this processed audio sample A ' (t), the volume that this loud speaker 3 is played out also improves thereupon, therefore noise just reduces relatively, and in the 3rd preferred embodiment, this adjusted current input audio sample A (t) stored by this memory 11 is deducted this audio distortion sample f (t-Δ t) and obtains this processed audio sample A ' (t) by this processor 12, the sound that this loud speaker 3 is played out can offset noise, therefore noise just reduces relatively.
Consult Fig. 5 and Fig. 6, 4th preferred embodiment of audio frequency adjusting device 1 ' of the present invention is similar to this first preferred embodiment, difference is: (1) this audio frequency adjusting device 1 ' also comprises the attention device 14 that is electrically connected on this processor 12, this attention device 14 (such as screen, cresset or electromagnetic shaker etc.) for receiving a warning indication, and be set as when need warn, sending warning (such as message on screen in this warning indication, cresset flashing or electromagnetic shaker vibrations etc.), and stop sending warning when this warning indication is set as not needing warning, the initial value of this warning indication is not for needing warning, (2) this audio regulation method performed by this processor 12 comprises following steps 61 ~ 73.
Step 61: this processor 12 receives this input audio sample A (t) at present, and this input audio sample A (t) is at present stored in this first memory space 111 of this memory 11.It should be noted that, before step 61, this first memory space 111 of this memory 11 has had the previous input audio sample A (t-Δ t) of this input audio sample A (t) at present, hereinafter referred to as previously input audio sample A (t-Δ t).
Step 62: this processor 12 receives this environment audio frequency sample B (t-Δ t) from this audio frequency acquisition device 2.
Step 63: this environment audio frequency sample B (t-Δ t) obtained in this previously input audio sample A (t-Δ t) stored by this memory 11 of this processor 12 and step 62, obtain this audio distortion sample f (t-Δ t), such as f (t-Δ t)=B (t-Δ t)-A (t-Δ t), and this audio distortion sample f (t-Δ t) is stored in this second memory space 112 of this memory 11.
Step 64: the size of this audio distortion sample f (t-Δ t) of this processor 12 stored by this memory 11 adjusts and upgrades size of this input audio sample A (t) at present stored by this memory 11, such as when the size of this audio distortion sample f (t-Δ t) is bigger than normal, the size of this input audio sample A (t) at present stored by this memory 11 is tuned up, and when the size of this audio distortion sample f (t-Δ t) is less than normal, the size of this input audio sample A (t) at present stored by this memory 11 is turned down, to maintain this fixing signal to noise ratio, and the size limiting this adjusted current input audio sample A (t) stored by this memory 11 is no more than the higher limit that this is preset.
Step 65: this processor 12 judges whether to need identification particular event (such as baby cry, sufferer groan calling for help, ring or door bell rings etc.) according to an identification instruction, if so, then jumps to step 66, if not, then jumps to step 71.This identification instruction is set by user.
Step 66: at least one the audio distortion sample f (t-n × Δ t) in the preset period of time of this processor 12 stored by this memory 11, n=1, ..., N, N >=1, whether this particular event of identification occurs, if, then jump to step 67, if not, then jump to step 70.It should be noted that then particular event judging nicety rate is relatively high if the quantity of audio distortion sample is abundant.
Step 67: this processor 12 sets an event lasting indication and an event occurring indication.This event lasting indication can be set to "Yes" (representing that this particular event continues to occur) or "No" (representing that this particular event does not continue to occur), and its initial value is "No".This event occurring indication can be set to "Yes" (representing that this particular event occurs) or "No" (representing that this particular event does not occur), and its initial value is "No".In step 67, this event lasting indication is first set as being same as this event occurring indication by this processor 12, then this event occurring indication is set as "Yes".
Step 68: this processor 12, according to this event lasting indication and this warning indication, judges whether the one in a first condition and a second condition is set up, if so, then jumps to step 69, if not, then jump to step 71.First condition is set to "No" for this event lasting indication.Second condition is set to "Yes" for this event lasting indication and this warning indication is set to need warning.
Step 69: this warning indication is set as needing warning by this processor 12, makes this attention device 14 send warning, to notify the generation of this particular event of user.Then step 71 is jumped to.
Step 70: this processor 12 sets this event lasting indication, this event occurring indication, this warning indication and a warning and cuts out instruction.This warning is closed instruction and can is set as "Yes" (represent and need stop warning) by user or be set as "No" (represent and do not need to stop warning) by this processor 12, and its initial value is "No".In step 70, this event lasting indication, this event occurring indication and this warning are closed instruction and are all set as "No" by this processor 12, and this warning indication are set as not needing warning.
Step 71: this processor 12 this adjusted current input audio sample A (t) stored by this memory 11, obtains this processed audio sample A ' (t), such as A ' (t)=A (t).
Step 72: this processor 12 cuts out instruction according to this warning and judges whether to stop warning, if so, then jumps to step 73, if not, then jumps to step 61.
Step 73: this warning indication is set as not needing warning by this processor 12, makes this attention device 14 stop sending warning.Then step 61 is jumped to.
Consult Fig. 5 and Fig. 7, the 5th preferred embodiment of audio frequency adjusting device 1 ' of the present invention is similar to the 4th preferred embodiment, and difference is the step 64 of this this audio regulation method performed by processor 12 ' and step 71 '.
Step 64 ': this processor 12 is according to a Gain tuning and the size upgrading this input audio sample A (t) at present stored by this memory 11, wherein, this gain can be a set point set by user, or the default value established in this audio frequency adjusting device 1.
Step 71 ': this adjusted current input audio sample A (t) stored by this memory 11 of this processor 12 and this audio distortion sample f (t-Δ t) obtain this processed audio sample A ' (t), such as A ' (t)=A (t)-f (t-Δ t).
Conclude above-mentioned, first, second and the 4th in preferred embodiment, this processor 12 environment is noisy make the size of this audio distortion sample f (t-Δ t) bigger than normal time, this input audio sample A (t) at present stored by this memory 11 is tuned up and obtains this processed audio sample A ' (t), the volume that this loud speaker 3 is played out also improves thereupon, therefore noise just reduces relatively, and in the 3rd and the 5th preferred embodiment, this adjusted current input audio sample A (t) stored by this memory 11 is deducted this audio distortion sample f (t-Δ t) and obtains this processed audio sample A ' (t) by this processor 12, the sound that this loud speaker 3 is played out can offset noise, therefore noise just reduces relatively.
In addition, in the second to the 5th preferred embodiment, this audio frequency adjusting device 1,1 ' also has the function of identification particular event, and in second and third preferred embodiment, that the mode reducing volume allows user be easier to perceive the generation of this particular event, and in the 4th and the 5th preferred embodiment, be the generation that the mode of reminding notifies this particular event of user.
It should be noted that, in the first to the 5th preferred embodiment, this audio frequency acquisition device 2 is external in this audio frequency adjusting device 1,1 ', and be carry out communication with this processor 12 in a wired fashion, but in another embodiment, this audio frequency acquisition device 2 can be wirelessly carry out communication with this processor 12, and in another embodiment, this audio frequency acquisition device 2 is built in this audio frequency adjusting device 1,1 ' in can being.In addition, in the first to the 5th preferred embodiment, this audio frequency adjusting device 1,1 ' is applied to monaural audio-frequency adjusting system, namely only has a loud speaker, but have in this area and usually know the knowledgeable illustrates to know when this audio frequency adjusting device 1,1 ' is applied to the audio-frequency adjusting system of multichannel how this revises by inference via above, therefore will not add explanation.
Claims (13)
1. an audio frequency adjusting device, comprises a memory and a processor, it is characterized in that:
This memory previously inputted audio sample for storing one;
This processor is electrically connected on this memory, audio sample is inputted at present for receiving one, and the environment audio sample that reception one is relevant to ambient sound, and this stored by this memory previously inputted audio sample and this environment audio sample, obtain an audio distortion sample, and input audio sample at present according to this audio distortion sample and this, obtain a processed audio sample.
2. audio frequency adjusting device according to claim 1, it is characterized in that: this processor also judges whether to need identification particular event according to an identification instruction, and when judging that this identification instruction is set as needing this particular event of identification, whether occur according at least one this particular event of audio distortion sample identification in a preset period of time.
3. audio frequency adjusting device according to claim 2, it is characterized in that: this processor is also when picking out this particular event and occurring, set an event lasting indication and an event occurring indication, and determine whether this warning indication be set as needing warning according to this event lasting indication and a warning indication.
4. audio frequency adjusting device according to claim 3, is characterized in that: this processor also cuts out instruction according to a warning and judges whether to stop warning, and when judging to stop warning, this warning indication is set as not needing warning.
5. audio frequency adjusting device according to claim 4, it is characterized in that: this audio frequency adjusting device, also comprise the attention device that is electrically connected on this processor, this attention device is for receiving this warning indication, and be set as sending warning when need warn in this warning indication, and stop sending warning when this warning indication is set as not needing warning.
6. audio frequency adjusting device according to claim 4, it is characterized in that: this processor adjusts this size of input audio sample or size according to this current input audio sample of a Gain tuning at present according to this audio distortion size, this processor is also when being set as warning by this warning indication, reduce the size of adjusted current input audio sample, using as the reference obtaining this processed audio sample.
7. audio frequency adjusting device according to claim 1, is characterized in that: this processor adjusts this according to this audio distortion size to input audio sample at present, to obtain this processed audio sample.
8. audio frequency adjusting device according to claim 1, it is characterized in that: this processor be this environment audio sample is deducted stored by this memory this previously inputted audio sample, to obtain this audio distortion sample, and deduct this audio distortion sample again, to obtain this processed audio sample according to this size inputting audio sample at present of a Gain tuning.
9. an audio regulation method, apply to a kind of audio-frequency adjusting system, this audio-frequency adjusting system comprises a memory, an audio frequency acquisition device, a processor, an output stage and a loud speaker, this memory storage one previously inputted audio sample, this audio frequency acquisition device acquisition ambient sound, to obtain an environment audio sample, this output stage is according to a processed audio sample, obtain an output audio sample, this output audio sample play by this loud speaker, it is characterized in that: this audio regulation method is performed by this processor, and comprise following steps:
(A) receive one and input audio sample at present;
(B) this environment audio sample is received;
(C) this stored by this memory previously inputted audio sample and this environment audio sample, obtained an audio distortion sample; And
(D) input audio sample at present according to this audio distortion sample and this, obtain this processed audio sample.
10. audio regulation method according to claim 9, is characterized in that: this step (D) comprises following sub-step:
(D1) adjust according to this audio distortion size the size that this inputs audio sample at present; And
(D2) according to adjusted current input audio sample, this processed audio sample is obtained.
11. audio regulation methods according to claim 9, is characterized in that: this step (D) comprises following sub-step:
(D1) according to a Gain tuning, this inputs the size of audio sample at present; And
(D2) according to adjusted current input audio sample and this audio distortion sample, this processed audio sample is obtained.
12. audio regulation methods according to claim 10 or 11, it is characterized in that: this audio regulation method also comprises a step (E) of a setting warning indication, and this step (E) is included in the following sub-step after sub-step (D1):
(E1) judge whether to need identification particular event according to an identification instruction, if so, then jump to sub-step (E2), if not, then jump to sub-step (D2);
(E2) whether occur according at least one this particular event of audio distortion sample identification in a preset period of time, if so, then jump to sub-step (E3), if not, then jump to sub-step (E6);
(E3) set an event lasting indication and an event occurring indication, and be first this event lasting indication is set as being same as this event occurring indication, then this event occurring indication is set as yes;
(E4) according to this event lasting indication and this warning indication, judge whether the one in a first condition and a second condition is set up, if, then jump to sub-step (E5), if not, then jump to sub-step (D2), and this first condition is set to for this event lasting indication no, this second condition for this event lasting indication be set to be and this warning indication is set to need warning;
(E5) this warning indication is set as need warning, and reduces the size of this adjusted current input audio sample, and obtain this processed audio sample according to the current input audio sample that this has reduced, and jump to sub-step (E7);
(E6) set this event lasting indication, this event occurring indication, this warning indication and a warning and close instruction, and this event lasting indication, this event occurring indication and this warning closedown instruction are all set as no, and this warning indication be set as not needing warning, and jump to sub-step (D2);
This step (E) is also included in the following sub-step after sub-step (D2) and (E5):
(E7) close instruction according to this warning to judge whether to stop warning, if so, then jump to sub-step (E8), if not, then jump to step (A); And
(E8) this warning indication is set as do not need warning.
13. audio regulation methods according to claim 10 or 11, it is characterized in that: this audio regulation method also comprises a step (E) of a setting warning indication, and this step (E) is included in the following sub-step after sub-step (D1):
(E1) judge whether to need identification particular event according to an identification instruction, if so, then jump to sub-step (E2), if not, then jump to sub-step (D2);
(E2) whether occur according to this this particular event of audio distortion sample identification of at least one in this preset period of time, if so, then jump to sub-step (E3), if not, then jump to sub-step (E6);
(E3) set an event lasting indication and an event occurring indication, and first this event lasting indication is set as being same as this event occurring indication, then this event occurring indication is set as yes;
(E4) according to this event lasting indication and this warning indication, judge whether the one in a first condition and a second condition is set up, if, then jump to sub-step (E5), if not, then jump to sub-step (D2), and this first condition is set to for this event lasting indication no, this second condition is set to be that and this warning indication is set to need warning for this event lasting indication;
(E5) this warning indication is set as need warning;
(E6) set this event lasting indication, this event occurring indication, this warning indication and a warning and close instruction, and this event lasting indication, this event occurring indication and this warning closedown instruction are all set as no, and this warning indication be set as not needing warning, and jump to sub-step (D2);
This step (E) is also included in the following sub-step after sub-step (D2):
(E7) close instruction according to this warning to judge whether to stop warning, if so, then jump to sub-step (E8), if not, then jump to step (A); And
(E8) this warning indication is set as do not need warning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110459090.7A CN103188585B (en) | 2011-12-31 | 2011-12-31 | Audio frequency adjusting device and method of adjustment thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110459090.7A CN103188585B (en) | 2011-12-31 | 2011-12-31 | Audio frequency adjusting device and method of adjustment thereof |
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| Publication Number | Publication Date |
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| CN103188585A CN103188585A (en) | 2013-07-03 |
| CN103188585B true CN103188585B (en) | 2016-01-27 |
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| CN201110459090.7A Expired - Fee Related CN103188585B (en) | 2011-12-31 | 2011-12-31 | Audio frequency adjusting device and method of adjustment thereof |
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Citations (5)
| 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 |
| CN1390383A (en) * | 1999-03-30 | 2003-01-08 | 高通股份有限公司 | Method and apparatus for automatically adjusting speaker and microphone gains within a mobile telephone |
| CN101193460A (en) * | 2006-11-20 | 2008-06-04 | 松下电器产业株式会社 | Sound detection device and method |
| WO2008134689A1 (en) * | 2007-04-30 | 2008-11-06 | Qualcomm Incorporated | Automatic volume and dynamic range adjustment for mobile audio devices |
| CN101668243A (en) * | 2008-09-01 | 2010-03-10 | 深圳华为通信技术有限公司 | Microphone array and method and module for calibrating same |
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2011
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1390383A (en) * | 1999-03-30 | 2003-01-08 | 高通股份有限公司 | Method and apparatus for automatically adjusting speaker and microphone gains within a mobile telephone |
| 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 |
| CN101193460A (en) * | 2006-11-20 | 2008-06-04 | 松下电器产业株式会社 | Sound detection device and method |
| WO2008134689A1 (en) * | 2007-04-30 | 2008-11-06 | Qualcomm Incorporated | Automatic volume and dynamic range adjustment for mobile audio devices |
| CN101668243A (en) * | 2008-09-01 | 2010-03-10 | 深圳华为通信技术有限公司 | Microphone array and method and module for calibrating same |
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