CN204791955U - Realize device of reverberation - Google Patents
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- CN204791955U CN204791955U CN201520433083.3U CN201520433083U CN204791955U CN 204791955 U CN204791955 U CN 204791955U CN 201520433083 U CN201520433083 U CN 201520433083U CN 204791955 U CN204791955 U CN 204791955U
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- 238000007906 compression Methods 0.000 claims abstract description 148
- 230000006835 compression Effects 0.000 claims abstract description 109
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 230000006837 decompression Effects 0.000 claims description 92
- 238000000034 method Methods 0.000 claims description 78
- 230000005236 sound signal Effects 0.000 claims description 25
- 238000013139 quantization Methods 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
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Abstract
The utility model discloses a realize device of reverberation, including first delay timer, second delay timer, filter bank and first synthesizer, the output of first delay timer is connected with the first input end of first synthesizer, the output of second delay timer is connected with the input of filter bank, and the output of filter bank is connected with the second input of first synthesizer, the filter bank is applicable to and carries out frequency domain compression filtering processing with the voice signal of handling through the second delay timer. Above -mentioned realize device of reverberation can reduce the demand of signal storage to RAM to save the cost.
Description
Technical field
The utility model relates to reverberation technique field, particularly relates to a kind of device realizing reverberation.
Background technology
When the existing device realizing reverberation works, there are multipath delay data, and when adopting existing reverberation algorithm to process data, predelay module and carry out the module of the sound delay that simulated sound brings in delayed reflex process by comb filter group and all-pass filter, required storage unit is huge.And in the direct implementation procedure of existing reverberation algorithm, the parameters such as number of filter, time delay, sample bits width, all directly affect the cost of the RAM (randomaccessmemory, random access memory) realized required for reverberation.
Utility model content
Based on this, be necessary to provide a kind of device realizing reverberation, for reducing the cost of required RAM.
Realize a device for reverberation, comprise the first chronotron, the second chronotron, bank of filters and the first compositor;
The output terminal of described first chronotron is connected with the first input end of described first compositor; The output terminal of described second chronotron is connected with the input end of described bank of filters, and the output terminal of described bank of filters is connected with the second input end of described first compositor;
Described bank of filters, is applicable to the voice signal through described second chronotron process to carry out the process of frequency domain compression filtering.
Wherein in an embodiment, the described device realizing reverberation also comprises the first compression set and first decompression device corresponding with described first compression set;
The output terminal of described first compression set is connected with the input end of described first chronotron, and described first compression set is applicable to receive first sound tone signal; The input end of described first decompression device is connected with the output terminal of described first chronotron, and the output terminal of described first decompression device is connected with the first input end of described first compositor;
The output terminal of described first chronotron is connected with the first input end of described first compositor by described first decompression device.
Wherein in an embodiment, described first compression set carries out described first compression process by linear predictive coding to described first sound tone signal.
Wherein in an embodiment, the described device realizing reverberation also comprises the second compression set and second decompression device corresponding with described second compression set;
The output terminal of described second compression set is connected with the input end of described second chronotron, and described second compression set is applicable to receive first sound tone signal; The input end of described second decompression device is connected with the output terminal of described second chronotron, and the output terminal of described second decompression device is connected with the input end of described bank of filters;
The output terminal of described second chronotron is connected with the input end of described bank of filters by described second decompression device.
Wherein in an embodiment, described second compression set carries out described second compression process by linear predictive coding to described first sound tone signal.
Wherein in an embodiment, described bank of filters is applicable to carry out MDCT process or FFT process to the described voice signal through described second chronotron, obtains the frequency signal of described voice signal;
Described bank of filters is also applicable to adjust described frequency signal by multiple predetermined coefficient, obtains multiple signal of adjusting frequency;
Described bank of filters is also applicable to carry out IMDCT process or IFFT process to signal of adjusting frequency described in multiple, each frame after process is got different initial point position respectively and is synthesized, generates the first output sound signal;
Described bank of filters is also applicable to each frame of described first output sound signal to superpose with the frame of preset length.
The above-mentioned device realizing reverberation, is provided with bank of filters, and makes bank of filters carry out the process of frequency domain compression filtering to the first sound tone signal after the second chronotron process, thus reduces the demand to the above-mentioned RAM realized in the device of reverberation, and saves cost.
The present invention proposes a kind of device realizing reverberation, comprises the 3rd compression set, the 3rd chronotron, three decompression device corresponding with described 3rd compression set, the 4th chronotron, the first attenuator and the second compositor;
The input end of described 3rd compression set is applicable to receive first sound tone signal, the output terminal of described 3rd compression set is connected with the input end of described 3rd chronotron, the output terminal of described 3rd chronotron is connected with the input end of described 3rd decompression device, and the output terminal of described 3rd decompression device is connected with the first input end of described second compositor;
The output terminal of described 4th chronotron is connected with the input end of described first attenuator, and the output terminal of described first attenuator is connected with the second input end of described second compositor.
Wherein in an embodiment, the described device realizing reverberation also comprises the 4th compression set and four decompression device corresponding with described 4th compression set;
The input end of described 4th compression set is applicable to receive described first sound tone signal, the output terminal of described 4th compression set is connected with the input end of described 4th chronotron, the output terminal of described 4th chronotron is connected with the input end of described 4th decompression device, and the output terminal of described 4th decompression device is connected with the input end of described first attenuator;
The output terminal of described 4th chronotron is connected with the input end of described first attenuator by described 4th decompression device.
Wherein in an embodiment, described 3rd compression set carries out described 3rd compression process by linear predictive coding to described first sound tone signal, and described 4th compression set carries out described 4th compression process by linear predictive coding to described first sound tone signal.
The above-mentioned device realizing reverberation, arranges the 3rd compression set and the 3rd decompression device, can reduce the demand to the above-mentioned RAM realized in the device of reverberation at the two ends of the 3rd chronotron, thus saves cost.
The present invention proposes a kind of device realizing reverberation, comprises the 5th chronotron, the 5th compression set, the 6th chronotron, five decompression device corresponding with described 5th compression set, the second attenuator and the 3rd compositor;
The input end of described 5th chronotron is applicable to receive first sound tone signal, and the output terminal of described 5th chronotron is connected with the first input end of described 3rd compositor;
The input end of described 5th compression set is applicable to receive described first sound tone signal, the output terminal of described 5th compression set is connected with the input end of described 6th chronotron, the output terminal of described 6th chronotron is connected with the input end of described 5th decompression device, the output terminal of described 5th decompression device is connected with the input end of described second attenuator, and the output terminal of described second attenuator is connected with the second input end of described 3rd compositor.
Wherein in an embodiment, described 5th compression set carries out described 3rd compression process by linear predictive coding to described first sound tone signal.
The above-mentioned device realizing reverberation, arranges the 5th compression set and the 5th decompression device, can reduce the demand of the above-mentioned RAM realized in the device of reverberation at the two ends of the 6th chronotron, thus saves cost.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model realizes device first embodiment of reverberation;
Fig. 2 is the structural representation that the utility model realizes device second embodiment of reverberation;
Fig. 3 is the structural representation that the utility model realizes device the 3rd embodiment of reverberation.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, the embodiment below in conjunction with accompanying drawing, the utility model being realized to the device of reverberation is described.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
See Fig. 1, in an embodiment, the device that the utility model realizes reverberation comprises the first chronotron 120, second chronotron 150, bank of filters 170 and the first compositor 180.The output terminal of the first chronotron 120 is connected with the first input end of the first compositor 180.The output terminal of the second chronotron 150 is connected with the input end of bank of filters 170.The output terminal of bank of filters 170 is connected with the second input end of the first compositor 180.Bank of filters 170 is applicable to the voice signal processed through the second chronotron 150 to carry out the process of frequency domain compression filtering.
Concrete, the first chronotron 120 is applicable to first sound tone signal to carry out the first delay process, generates second sound signal.Second chronotron 150 is applicable to first sound tone signal to carry out the second delay process.Bank of filters 170 is applicable to the first sound tone signal after the second chronotron 150 processes to carry out the process of frequency domain compression filtering, generates the 3rd voice signal.First compositor 180 is applicable to second sound signal and the 3rd voice signal synthesis fourth sound tone signal and exports.
The above-mentioned device realizing reverberation, be provided with bank of filters 170, and make bank of filters 170 carry out the process of frequency domain compression filtering to the first sound tone signal after the second chronotron 150 processes, thus reduce the demand to the above-mentioned RAM realized in the device of reverberation, and save cost.
Wherein, the first delay process is to first sound tone signal time delay first Preset Time.Second delay process is to first sound tone signal time delay second Preset Time.And the second Preset Time can be equal with the first Preset Time, also can not wait, specifically set according to the actual needs.
Further, the device that the utility model realizes reverberation also comprises the first compression set 110 and the first decompression device 130.The output terminal of the first compression set 110 is connected with the input end of the first chronotron 120, first compression set 110 is applicable to receive first sound tone signal, first sound tone signal is carried out the first compression process, and the first sound tone signal through the first compression process is sent to the first chronotron 120.
The input end of the first decompression device 130 is connected with the output terminal of the first chronotron 120, and the output terminal of the first decompression device 130 is connected with the first input end of the first compositor 180.First compression set 130 is applicable to the first sound tone signal processed through the first chronotron 120 be carried out compressing with first processing the first corresponding decompression processing.Namely the first decompression processing is the inverse process of the first compression process.
Understandable, after adding the first decompression device 130, the output terminal of the first chronotron 120 is connected with the first input end of the first compositor 180 by the first decompression device 130.
By connecting the first compression set 110 at the input end of the first chronotron 120, and connecting the first decompression device 130 at the output terminal of the first chronotron 120, the cost that the utility model realizes the RAM in the device of reverberation can be reduced further.
Equally, the device that the utility model realizes reverberation also comprises the second compression set 140 and second decompression device 160 corresponding with the second compression set 140.The output terminal of the second compression set 140 is connected with the input end of the second chronotron 150.Second compression set 140 is applicable to receive first sound tone signal, first sound tone signal is carried out the second compression process, and the first sound tone signal through the second compression process is sent to the second chronotron 150.
The input end of the second decompression device 160 is connected with the output terminal of the second chronotron 150, the output terminal of the second decompression device 160 is connected with the input end of bank of filters 170, and the second compression set 160 is applicable to the first sound tone signal processed through the second chronotron 150 be carried out compressing with second processing the second corresponding decompression processing.That is, the second decompression processing is the inverse process of the second compression process.
Understandable, after adding the second decompression device 160, the output terminal of the second chronotron 150 is connected with the input end of bank of filters 170 by the second decompression device 160.
By connecting the second compression set 140 at the input end of the second chronotron 150, and connecting the second decompression device 160 at the output terminal of the second chronotron 150, the cost that the utility model realizes the RAM in the device of reverberation can be reduced further.
Preferably, the first compression set 110 can carry out the first compression process by linear predictive coding to first sound tone signal.Such as, the first compression set 110 can quantize the error of the real data of first sound tone signal and predicted data, simultaneously according to error amount adjustment quantization step, has carried out the compression to first sound tone signal.The RAM required to the first sound signal storage after the first compression process is without the required RAM of the first sound signal storage of compression process about 1/4th, thus greatly reduces the demand to RAM, reduces the cost of RAM.Allowing in parallel system, the maximum restriction that reverberation realizes is storage resources, instead of speed.Specifically, the data that the first sound tone signal without the first compression process stores in RAM are the voice data of 16bit, and can be the voice data of 4bit through the data that the first sound tone signal that the first compression processes stores in RAM.
Corresponding, the first decompression device 130 can go to obtain corresponding inverse quantization value according to the quantized result of input, then adjusts quantization step according to going between quantized value location, then upgrades and prediction of output value.Wherein, predicted value is second sound signal.
Same, second compression set 140 also can carry out the second compression process by linear predictive coding to first sound tone signal, and the second decompression device 160 also can carry out the second decompression processing by the decompressing method of the first decompression device 130 to the first sound tone signal after the second chronotron 150 processes.
In an embodiment, the method that bank of filters 170 realizes the process of frequency domain compression filtering can be:
First, MDCT process is carried out to the first sound tone signal after the second chronotron 150 processes, obtains the frequency-region signal of first sound tone signal.
Understandable, frequency-region signal first sound tone signal being carried out to the first sound tone signal that MDCT process obtains can be the frequency values of first sound tone signal.Be treated to technology known in those skilled in the art owing to carrying out MDCT to signal, therefore do not repeat them here.
Then, by multiple predetermined coefficient adjustment frequency-region signal, multiple adjustment frequency-region signal is obtained.
By multiple predetermined coefficient, the frequency-region signal through first sound tone signal obtained in the previous step is carried out frequency domain adjustment, obtain the adjustment frequency-region signal of multiple first sound tone signal.Each predetermined coefficient can according to realize reverberation effect need carry out integrated planning setting.
Then, IMDCT (InverseModifiedDiscreteCosineTransform is carried out to multiple adjustment frequency-region signal, revise inverse discrete cosine transform) process, and each frame after process is got different initial point position respectively and synthesized, generate the first output sound signal.
The IMDCT process contrary with MDCT processing procedure is carried out to the multiple adjustment frequency-region signals drawn through previous step, multiple adjustment frequency-region signal is become time-domain signal from frequency-region signal.Then each frame of signal got different initial point position respectively and synthesized, generating the first output sound signal.Such as, the length of each frame is N, the corresponding path of each adjustment frequency-region signal, then the data from N=100 of each frame can be got in path 1, the data from N=200 of each frame can be got in path 2, the data from N=300 of each frame can be got in path 3, and other paths process according to the data of said process to each frame.Finally the data in each path are synthesized, generate the first output sound signal.
Be treated to technology known in those skilled in the art owing to carrying out IMDCT to signal, therefore do not repeat them here.
Finally, each frame of the first output sound signal is superposed with the frame of preset length, generate the 3rd voice signal.
In order to avoid the fusion of signal, each frame of the first output sound signal can be superposed with the frame of preset length, final generation the 3rd voice signal.Wherein, the data of the frame of preset length are the data in each frame of the first output sound signal.Such as, each frame of the first output sound signal exports 1024 points, and 512 points wherein for carrying out the data superposed, can be the frame of preset length.
Below by way of a specific embodiment, frequency domain compression filtering processing procedure is described: suppose that through the data length of each frame of MDCT process be 2048, the preset length of each frame of superposition is 1024, and whole data buffer storage length is 2048.By Hanning window, MDCT process is done to the data of each frame and obtains corresponding frequency values.Then use the different predetermined coefficient of N group to go value of adjusting frequency, and do IMDCT process and to be added to the buffer zone of Output rusults.Finally by Hanning window, in chronological order, rear 512 data investigation of front 512 data of the buffer zone of Output rusults and data buffer storage are exported, and empties the buffer zone of Output rusults.
By the process of above-mentioned frequency domain compression filtering, can carry out the frequency response of first sound tone signal at frequency domain, recall the Wave crest and wave trough of first sound tone signal.And by the setting to parameters, can also directly adjust the frequency response wanted.
It should be noted that, in other embodiments, MDCT process can also be replaced with FFT (FastFourierTransformation, fast Fourier transform) process.Corresponding replaces with IFFT (InverseFastFourierTransformation, inverse fast Fourier transform) process by IMDCT process.
The above-mentioned device realizing reverberation, be provided with bank of filters 170, and make bank of filters 170 carry out the process of frequency domain compression filtering to the first sound tone signal after the second chronotron 150 processes, and the first compression set 110 and the first decompression device 120 is set at the two ends of the first chronotron 120, the demand to the above-mentioned RAM realized in the device of reverberation can be reduced, thus save cost.
See Fig. 2, in an embodiment, the device that the utility model realizes reverberation comprises the 3rd compression set 210, the 3rd chronotron 220, three decompression device 230 corresponding with the 3rd compression set 210, the 4th chronotron 250, first attenuator 270 and the second compositor 280.The input end of the 3rd compression set 210 is applicable to receive first sound tone signal, and the output terminal of the 3rd compression set 210 is connected with the input end of the 3rd chronotron 220.The output terminal of the 3rd chronotron 220 is connected with the input end of the 3rd decompression device 230.The output terminal of the 3rd decompression device 230 is connected with the first input end of the second compositor 280.The output terminal of the 4th chronotron 250 is connected with the input end of the first attenuator 270.The output terminal of the first attenuator 270 is connected with the second input end of the second compositor 280.
The above-mentioned device realizing reverberation, arranges the 3rd compression set 210 and the 3rd decompression device 230, can reduce the demand to the above-mentioned RAM realized in the device of reverberation at the two ends of the 3rd chronotron 220, thus saves cost.
Wherein, the 3rd delay process is to first sound tone signal time delay the 3rd Preset Time.4th delay process is to first sound tone signal time delay the 4th Preset Time.And the 4th Preset Time can be equal with the 3rd Preset Time, also can not wait, specifically set according to the actual needs.
Further, the device that the utility model realizes reverberation can also comprise the 4th compression set 240 and four decompression device 260 corresponding with the 4th compression set 240.The input end of the 4th compression set 240 is applicable to receive first sound tone signal, and the output terminal of the 4th compression set 240 is connected with the input end of the 4th chronotron 250.The output terminal of the 4th chronotron 250 is connected with the input end of the 4th decompression device 260.The output terminal of the 4th decompression device 260 is connected with the input end of the first attenuator 270, and the output terminal of the first attenuator 270 is connected with the second input end of the second compositor 280.
Understandable, after adding the 4th decompression device 260, the output terminal of the 4th chronotron 250 is connected with the input end of the first attenuator 270 by the 4th decompression device 260.
Connect the 4th compression set 240 by the input end at the 4th chronotron 250, and connect the 4th decompression device 260 at the output terminal of the 4th chronotron 250, the cost that the utility model realizes the RAM in the device of reverberation can be reduced further.
In the present embodiment, the 3rd compression set 210 is applicable to first sound tone signal be carried out the 3rd compression process.3rd chronotron 220 is applicable to the first sound tone signal after 210 process of the 3rd compression dress to carry out the 3rd delay process.3rd decompression device 230 is applicable to the first sound tone signal after the 3rd chronotron 220 processes be carried out compressing with the 3rd process the 3rd corresponding decompression processing, generates second sound signal.That is, the 3rd decompression processing is the inverse process of the 3rd compression process.4th compression set 240 is applicable to first sound tone signal be carried out the 4th compression process.4th chronotron 250 is applicable to the first sound tone signal after the 4th compression set 240 processes to carry out the 4th delay process.4th decompression device 260 is applicable to the first sound tone signal after the 4th chronotron 250 processes to carry out the 4th decompression processing.First attenuator 270 is applicable to the first sound tone signal after the 4th decompression device 260 processes to carry out attenuation processing, generates the 3rd voice signal.First compositor 180 is applicable to second sound signal and the 3rd voice signal synthesis fourth sound tone signal and exports.
Preferably, the 3rd compression set 210 can carry out the 3rd compression process by linear predictive coding to first sound tone signal.Such as, the 3rd compression set 210 can quantize the error of the real data of first sound tone signal and predicted data, simultaneously according to error amount adjustment quantization step, has carried out the compression to first sound tone signal.The RAM required to the first sound signal storage after the first compression process is without the required RAM of the first sound signal storage of compression process about 1/4th, thus greatly reduces the demand to RAM, reduces the cost of RAM.Allowing in parallel system, the maximum restriction that reverberation realizes is storage resources, instead of speed.Specifically, the data that the first sound tone signal without the 3rd compression process stores in RAM are the voice data of 16bit, and can be the voice data of 4bit through the data that the first sound tone signal that the 3rd compression processes stores in RAM.
Corresponding, the 3rd decompression device 230 is applicable to carry out the 3rd decompression processing to the first sound tone signal after the 3rd chronotron 220 processes, and the 3rd decompression processing is the inverse process of the 3rd compression process.Such as, can go to obtain corresponding inverse quantization value according to the quantized result of input, then adjust quantization step according to going between quantized value location, then upgrade and prediction of output value.Wherein, predicted value is second sound signal.
Same, 4th compression set 240 also can carry out the 4th compression process by linear predictive coding to first sound tone signal, and the 4th decompression device 260 also can carry out the 4th decompression processing by the decompressing method of the 3rd decompression device 130 to the first sound tone signal after the 4th chronotron 250 processes.
The above-mentioned device realizing reverberation, 3rd compression set 210 and the 3rd decompression device 230 are set at the two ends of the 3rd chronotron 220, and the 4th compression set 240 and the 4th decompression device 260 are set at the two ends of the 4th chronotron 250, the demand to the above-mentioned RAM realized in the device of reverberation can be reduced, thus save cost.
See Fig. 3, in an embodiment, the device that the utility model realizes reverberation comprises the 5th chronotron 310, the 5th compression set 320, the 6th chronotron 330, five decompression device 340, second attenuator 350 corresponding with the 5th compression set 320 and the 3rd compositor 360.The input end of the 5th chronotron 310 is applicable to receive first sound tone signal, and the output terminal of the 5th chronotron 310 is connected with the first input end of the 3rd compositor 360.The input end of the 5th compression set 320 is applicable to receive first sound tone signal, and the output terminal of the 5th compression set 320 is connected with the input end of the 6th chronotron 330.The output terminal of the 6th chronotron 330 is connected with the input end of the 5th decompression device 340.The output terminal of the 5th decompression device 340 is connected with the input end of the second attenuator 350.The output terminal of the second attenuator 350 is connected with the second input end of the 3rd compositor 360.
Understandable, the 5th chronotron 310 is applicable to carry out the 5th delay process to first sound tone signal, generates second sound signal.5th compression set 320 is applicable to carry out the 5th compression process to first sound tone signal.6th chronotron 330 is applicable to the first sound tone signal after the 5th compression set 320 processes to carry out the 6th delay process.5th decompression device 340 is applicable to the first sound tone signal after the 6th chronotron 330 processes be carried out compressing with the 5th process the 5th corresponding decompression processing.That is, the 5th decompression processing is the inverse process of the 5th compression process.Second attenuator 350 is applicable to the first sound tone signal after the 5th decompression device 340 processes to carry out the second attenuation processing, generates the 3rd voice signal.3rd compositor 360 is applicable to second sound signal and the 3rd voice signal synthesis fourth sound tone signal and exports.
Preferably, the 5th compression set 320 can carry out the 5th compression process by linear predictive coding to first sound tone signal.Such as, the 5th compression set 320 can quantize the error of the real data of first sound tone signal and predicted data, simultaneously according to error amount adjustment quantization step, has carried out the compression to first sound tone signal.The RAM required to the first sound signal storage after the first compression process is without the required RAM of the first sound signal storage of compression process about 1/4th, thus greatly reduces the demand to RAM, reduces the cost of RAM.Allowing in parallel system, the maximum restriction that reverberation realizes is storage resources, instead of speed.Specifically, the data that the first sound tone signal without the 5th compression process stores in RAM are the voice data of 16bit, and can be the voice data of 4bit through the data that the first sound tone signal that the 5th compression processes stores in RAM.
Corresponding, the 5th decompression device 340 can go to obtain corresponding inverse quantization value according to the quantized result of input, then adjusts quantization step according to going between quantized value location, then upgrades and prediction of output value.
The above-mentioned device realizing reverberation, arranges the 5th compression set 320 and the 5th decompression device 340, can reduce the demand of the above-mentioned RAM realized in the device of reverberation at the two ends of the 6th chronotron 330, thus saves cost.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (11)
1. realize a device for reverberation, it is characterized in that, comprise the first chronotron, the second chronotron, bank of filters and the first compositor;
The output terminal of described first chronotron is connected with the first input end of described first compositor; The output terminal of described second chronotron is connected with the input end of described bank of filters, and the output terminal of described bank of filters is connected with the second input end of described first compositor;
Described bank of filters, is applicable to the voice signal through described second chronotron process to carry out the process of frequency domain compression filtering.
2. the device realizing reverberation according to claim 1, is characterized in that, the described device realizing reverberation also comprises the first compression set and first decompression device corresponding with described first compression set;
The output terminal of described first compression set is connected with the input end of described first chronotron, and described first compression set is applicable to receive first sound tone signal; The input end of described first decompression device is connected with the output terminal of described first chronotron, and the output terminal of described first decompression device is connected with the first input end of described first compositor;
The output terminal of described first chronotron is connected with the first input end of described first compositor by described first decompression device.
3. the device realizing reverberation according to claim 2, is characterized in that, described first compression set carries out the first compression process by linear predictive coding to described first sound tone signal.
4. the device realizing reverberation according to claim 1, is characterized in that, the described device realizing reverberation also comprises the second compression set and second decompression device corresponding with described second compression set;
The output terminal of described second compression set is connected with the input end of described second chronotron, and described second compression set is applicable to receive first sound tone signal; The input end of described second decompression device is connected with the output terminal of described second chronotron, and the output terminal of described second decompression device is connected with the input end of described bank of filters;
The output terminal of described second chronotron is connected with the input end of described bank of filters by described second decompression device.
5. the device realizing reverberation according to claim 4, is characterized in that, described second compression set carries out the second compression process by linear predictive coding to described first sound tone signal.
6. the device realizing reverberation according to claim 1 to 5 any one, it is characterized in that, described bank of filters is applicable to carry out MDCT process or FFT process to the described voice signal after described second chronotron process, obtains the frequency-region signal of described voice signal;
Described bank of filters is also applicable to adjust described frequency-region signal by multiple predetermined coefficient, obtains multiple adjustment frequency-region signal;
Described bank of filters is also applicable to carry out IMDCT process or IFFT process to multiple described adjustment frequency-region signal, each frame after process is got different initial point position respectively and is synthesized, generates the first output sound signal;
Described bank of filters is also applicable to each frame of described first output sound signal to superpose with the frame of preset length.
7. realize a device for reverberation, it is characterized in that, comprise the 3rd compression set, the 3rd chronotron, three decompression device corresponding with described 3rd compression set, the 4th chronotron, the first attenuator and the second compositor;
The input end of described 3rd compression set is applicable to receive first sound tone signal, the output terminal of described 3rd compression set is connected with the input end of described 3rd chronotron, the output terminal of described 3rd chronotron is connected with the input end of described 3rd decompression device, and the output terminal of described 3rd decompression device is connected with the first input end of described second compositor;
The output terminal of described 4th chronotron is connected with the input end of described first attenuator, and the output terminal of described first attenuator is connected with the second input end of described second compositor.
8. the device realizing reverberation according to claim 7, is characterized in that, the described device realizing reverberation also comprises the 4th compression set and four decompression device corresponding with described 4th compression set;
The input end of described 4th compression set is applicable to receive described first sound tone signal, the output terminal of described 4th compression set is connected with the input end of described 4th chronotron, the output terminal of described 4th chronotron is connected with the input end of described 4th decompression device, and the output terminal of described 4th decompression device is connected with the input end of described first attenuator;
The output terminal of described 4th chronotron is connected with the input end of described first attenuator by described 4th decompression device.
9. the device realizing reverberation according to claim 8, it is characterized in that, described 3rd compression set carries out the 3rd compression process by linear predictive coding to described first sound tone signal, and described 4th compression set carries out the 4th compression process by linear predictive coding to described first sound tone signal.
10. realize a device for reverberation, it is characterized in that, comprise the 5th chronotron, the 5th compression set, the 6th chronotron, five decompression device corresponding with described 5th compression set, the second attenuator and the 3rd compositor;
The input end of described 5th chronotron is applicable to receive first sound tone signal, and the output terminal of described 5th chronotron is connected with the first input end of described 3rd compositor;
The input end of described 5th compression set is applicable to receive described first sound tone signal, the output terminal of described 5th compression set is connected with the input end of described 6th chronotron, the output terminal of described 6th chronotron is connected with the input end of described 5th decompression device, the output terminal of described 5th decompression device is connected with the input end of described second attenuator, and the output terminal of described second attenuator is connected with the second input end of described 3rd compositor.
11. devices realizing reverberation according to claim 10, is characterized in that, described 5th compression set carries out the 5th compression process by linear predictive coding to described first sound tone signal.
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