CN107231599A - A kind of 3D sound fields construction method and VR devices - Google Patents
A kind of 3D sound fields construction method and VR devices Download PDFInfo
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- CN107231599A CN107231599A CN201710428555.XA CN201710428555A CN107231599A CN 107231599 A CN107231599 A CN 107231599A CN 201710428555 A CN201710428555 A CN 201710428555A CN 107231599 A CN107231599 A CN 107231599A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
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Abstract
The present invention provides a kind of 3D sound fields construction method and VR devices, according to source of sound and the position relationship of listener, produces the audio signal containing sound source position information；And according to the audio signal containing sound source position information, carry out 3D sound fields space environment and restore reconstruction.Realize the output mode of the panorama audio in VR so that 3D sound fields more have presence, bring feeling of immersion acoustically to VR products, improve Consumer's Experience.
Description
Technical field
The present invention relates to sound field constructing technology field, more particularly to a kind of 3D sound fields construction method and VR devices.
Background technology
With developing rapidly for VR (Virtual Reality, virtual reality) technologies, and the audiovisual pursued of user
Feeling of immersion, more and more higher is also required that for the technology to 3D rendering and 3D sound fields in VR products.At present, 3D rendering etc. is related
Technology all develops very ripe, and the object in render real and illusory world is not difficult.But if heavy only on image
Leaching sense, no sound is rendered, then user can not be made really to be immersed in virtual world.
It is understood that a VR key property is exactly the selectivity intake of information, all letters in traditional display modes
Breath cannot be selected all in face of user.But VR is different, it provides the watching mode of panorama, has more rich picture for choosing
Select, it is necessary to guide.Such as：When a beauty claps hands on the left of you, your the normal reaction in reality should be turned to the left
Body, it is this information of beauty then to obtain the people clapped hands.It can be seen that, the effect that sound is here functioned as is the most initial of behavior generation
Foundation.Here it is the value that panorama audio is experienced to VR.
How method and VR devices that a kind of 3D sound fields in VR are built so are provided, the sound in real world is simulated
, panorama audio is realized, the problem faced as current many VR researchers.
The content of the invention
The embodiment of the present invention provides a kind of 3D sound fields construction method and VR devices, to solve can not in VR in the prior art
The defect that 3D sound fields are built is realized, the output mode of the panorama audio in VR is realized.
In order to solve the above problems, the invention discloses a kind of 3D sound fields construction method, applied to VR products, wherein, bag
Include：
According to source of sound and the position relationship of listener, the audio signal containing sound source position information is produced；
According to the audio signal containing sound source position information, carry out 3D sound fields space environment and restore reconstruction.
Method of the present invention, wherein, described according to source of sound and the position relationship of listener, generation contains sound source position
The step of audio signal of information, further comprises：
According to source of sound and the position relationship of listener, head related transfer function HRTF is chosen, by sound source signal and source of sound
HRTF impulse response signals do convolution and obtain the audio signal containing sound source position information.
Method of the present invention, wherein, further comprise：
According to source of sound and the position relationship of listener, HRTF functions are chosen, the HRTF pulses of sound source signal and source of sound are rung
Induction signal obtains the audio signal containing sound source position information by doing product on FFT operation transforms to frequency domain.
Method of the present invention, wherein, the audio signal containing sound source position information described in the basis carries out 3D sound
Field space environment is restored the step of rebuilding and further comprised：
According to the audio signal containing audio position information, 3D is carried out using the Delay Feedback network of digital reverberation empty
Between environmental renovation rebuild.
Method of the present invention, wherein, further comprise：
The voice signal after voice signal and the reconstruction of 3D sound fields space environment after being rebuild to 3D sound fields space environment is in itself
The voice signal after second-order low-pass filter is mixed and exported in itself.
In order to solve the above problems, the invention also discloses a kind of VR devices, including：
Sound locating module, for the position relationship according to source of sound and listener, produces the sound containing sound source position information
Frequency signal；
3D sound fields space environment, which is restored, rebuilds module, for according to the audio signal containing sound source position information, entering
Row 3D sound fields space environment, which is restored, rebuilds.
Device of the present invention, wherein,
The sound locating module, is further used for the position relationship according to source of sound and listener, chooses HRTF functions, will
The HRTF impulse response signals of sound source signal and source of sound do convolution and obtain the audio signal containing sound source position information.
Device of the present invention, wherein,
The sound locating module, is further used for the position relationship according to source of sound and listener, chooses HRTF functions, will
The HRTF impulse response signals of sound source signal and source of sound are obtained containing sound source position by doing product on FFT operation transforms to frequency domain
The audio signal of information.
Device of the present invention, wherein,
The 3D sound fields space environment, which is restored, rebuilds module, is further used for according to the sound containing audio position information
Frequency signal, 3d space environmental renovation reconstruction is carried out using the Delay Feedback network of digital reverberation.
Device of the present invention, wherein, further comprise：
Bass boost module, for being rebuild to the voice signal after the reconstruction of 3D sound fields space environment and 3D sound fields space environment
Voice signal of the voice signal afterwards after second-order low-pass filter itself is mixed and exported.
A kind of 3D sound fields construction method and VR devices provided in an embodiment of the present invention, pass through the position according to source of sound and listener
Relation is put, the audio signal containing sound source position information is produced；And according to the audio signal containing sound source position information, enter
Row 3D sound fields space environment, which is restored, rebuilds.The output mode of the panorama audio in VR is realized, according to the variation of listener positions
And sound field is rebuild at any time.Step low-pass is further carried out by the voice signal after being rebuild to 3D sound fields space environment with itself
Mixed and exported after filtering so that made up the loss of bass part, 3D sound fields more have presence, to VR
Product brings feeling of immersion acoustically, improves Consumer's Experience.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of step flow chart of 3D sound fields construction method embodiment of the invention；
Fig. 2 is a kind of step flow chart of another embodiment of 3D sound fields construction method of the invention；
Fig. 3 is a kind of structured flowchart of VR device embodiments of the invention；
Fig. 4 is structural representation of the embodiment of the present invention using the reflection of 8 delay line simulated sounds；
Fig. 5 is the structural representation of bass boost module of the embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment one
Reference picture 1, shows a kind of step flow chart of 3D sound fields construction method of the embodiment of the present invention.
A kind of 3D sound fields construction method of the present embodiment, applied to VR products, comprises the following steps：
Step 10：According to source of sound and the position relationship of listener, the audio signal containing sound source position information is produced；Receive
Hearer determines sound source position according to the sound heard, can be played back using the sound system of existing similar home theater or movie theatre
Reduction or the space orientation that sound is realized using two-channel, such as pass through head related transfer function HRTF (Head Related
Transfer Function) realize.Generally listener's surrounding space can be divided into by some equal portions according to latitude and longitude
(such as MIT is with 15 degree for interval), produce at pulse signal, listener at each sampled point, source of sound and received signal through the past
The operation such as processing obtains the HRTF of the azimuthal point, thus obtains a series of head related transfer function.Now with listener and
The azimuth information of source of sound, which can just table look-up, obtains correct head related transfer function.Furthermore, it is contemplated that the problem of range attenuation, root
According to the distance between the location of listener and source of sound, the decay that distance is produced, the function can also be calculated with a function
Exponential decay model can be used.
Step 20：According to the audio signal containing sound source position information, carry out 3D sound fields space environment and restore reconstruction.
In this step of the present embodiment, using the Delay Feedback network model of existing digital reverberation, that is, using prolonging
Slow line carrys out the reflection of simulated sound.So it can control to mix according to the gain of regulation reflected ray and the time delay of reflected ray
The time of sound and reverberation density.Cause to obtain howling after high fdrequency component enhancing is eliminated by low pass filter.The present invention is based on real
Existing 8 delay lines carry out the reflection of simulated sound.As shown in Figure 4.
The Acoustic Wave Propagation in closed chamber sound field, the sound that indoor any point is heard will include two large divisions：Direct sound wave and anti-
Sound.Direct sound wave is the part that sound wave directly reaches human ear without any barrier, and its propagation path is shorter, so energy is damaged
Lose less, amplitude is very strong.In reflected sound, reflection is claimed in the reflection that 50ms is less than with direct sound wave interval time, with going directly
Reverberation sound is claimed in the reflection that sound interval time is more than 50ms.Reflection generally only by first and second reflect, its energy compared with
Greatly, and space between also larger.Reverberation sound then passes through multiple reflections, and its energy is smaller, and interval ratio to each other
It is smaller.The present invention is simulated actual scene using Delay Feedback network and realizes final reverberation effect.As shown in the figure：Use 8
Delay cellCarry out simulated sound and reach 8 kinds of different path delay that human ear is passed through.Input x (n) with
Export y (n) -2/N (N=8 of the present invention) mixingAfterwards as the external input of each delay line.Each delay line it is defeated
Go out also feed back to the delay line as feed back input, feed back input and external input mixing, after the delay of delay cell,
Pass through LPF again, be used as the output of the delay line.The output y (n) at the moment is used as after all delay line output mixing.Can
To realize the reflection of reverberation with 8 delay lines.And the feedback for exporting y (n) can be as reverberation sound.
By this method embodiment, according to source of sound and the position relationship of listener, the sound containing sound source position information is produced
Frequency signal；And according to the audio signal containing sound source position information, carry out 3D sound fields space environment and restore reconstruction.Realize
The output mode of panorama audio in VR, according to the variation of listener positions, sound field is rebuild at any time.
Embodiment two
Reference picture 2, shows a kind of another embodiment flow chart of steps of 3D sound fields construction method of the invention.The present embodiment
A kind of 3D sound fields construction method, applied to VR products, comprise the following steps：
Step 101：According to source of sound and the position relationship of listener, the audio signal containing sound source position information is produced；This
In, according to source of sound and the position relationship of listener, head related transfer function HRTF functions are chosen, by sound source signal and source of sound
HRTF impulse response signals do convolution and obtain the audio signal containing sound source position information.Related research institutes are according to latitude and warp
Listener's surrounding space is divided into some equal portions (such as MIT is with 15 degree for interval) by degree, is produced at each sampled point, source of sound
Signal is received at pulse signal, listener by going the operation such as processing to obtain the HRTF of the azimuthal point, is thus obtained a series of
Head related transfer function.Azimuth information now with listener and source of sound can just table look-up the correct head associated delivery letter of acquisition
Number.
Specifically, the present embodiment is positioned using MIT databases for source of sound.From the point of view of Signals ＆ Systems, there is this
The head related transfer function HRTF of location point：The function is a kind of audio location algorithm, the head related impulse response of correspondence time domain
(Head Related Inpulse Response, HRIR), then the audio signal obtained with input source progress convolution is just included
There is the positional information of source of sound:
Formula one：
Wherein, y (n) is represented：The output tonic train of processing is responded through excessive coherent pulse；X (n) is represented：The sound of input
Frequency sequence, represents n-th of sampling point；H (n) is represented：Head coherent pulse response sequence；N is represented：Represent the sequence number of time.
Further, since convolution can take substantial amounts of memory space, it is possible to by input signal and HRTF impulse response
FFT operation transforms are carried out to frequency domain.It is product on frequency domain that the convolution of time domain is corresponding, and therefore, formula one is reformed into：
Formula two：Y (w)=X (w) * H (w)
Wherein, Y (w) is represented：The Fourier transform of the output sequence of processing is responded through excessive coherent pulse；X (w) is represented：
Input the Fourier transform of tonic train；H (w) is represented：The Fourier transform of the related Least square estimation of head；W is represented：It is discrete
Frequency point.
Because the tonic train of input is a very long input signal, and in order to reduce the caching that algorithm process is brought
Delay, typically can all say that list entries x (n) is divided into many sections of post processings, and then output can be analyzed to：
Wherein：
As long as it is indicated above that by x (n) it is every it is a bit of respectively with h (n) convolution, then these convolution results are added again
Get up and can be obtained by output sequence, so, each section of convolution can all be calculated with fast convolution discussed above.First to h
And x (n)i(n) zero padding, mending to arrive has N point length, and wherein, N1 is h (n) length to N=N1+N2-1, and N2 is xi(n) sequence
Length.It is typically chosen N=2M, then obtained with base 2FFT algorithms by positive and negative transformation calculationsN
Can neither typically obtain can not obtain greatly very much too small, if too conference causes the increase and take more interior that caching is delayed
Deposit, if the probability that too small so CPU occupancy will rise and under-run occurs can increase.Present invention employs
512 sample, the time of processing once is almost 1ms or so.
Due to yi(n) length is N, and xi(n) length is N2, therefore adjacent two yi(n) sequence necessarily has N-N2=N1-1
Point overlaps, and this lap, which should be added up mutually, could constitute last output sequence.
, can be with according to the distance between the location of listener and source of sound furthermore, it is contemplated that the problem of range attenuation
The decay that distance is produced is calculated with a function, the function can use exponential decay model.
Step 102：According to the audio signal containing sound source position information, carry out 3D sound fields space environment and restore weight
Build；
In this step of the present embodiment, using the Delay Feedback network model of existing digital reverberation, that is, using prolonging
Slow line carrys out the reflection of simulated sound.So it can control to mix according to the gain of regulation reflected ray and the time delay of reflected ray
The time of sound and reverberation density.Cause to obtain howling after high fdrequency component enhancing is eliminated by low pass filter.The present invention is based on real
Existing 8 delay lines carry out the reflection of simulated sound.As shown in Figure 4.
The Acoustic Wave Propagation in closed chamber sound field, the sound that indoor any point is heard will include two large divisions：Direct sound wave and anti-
Sound.Direct sound wave is the part that sound wave directly reaches human ear without any barrier, and its propagation path is shorter, so energy is damaged
Lose less, amplitude is very strong.In reflected sound, reflection is claimed in the reflection that 50ms is less than with direct sound wave interval time, with going directly
Reverberation sound is claimed in the reflection that sound interval time is more than 50ms.Reflection generally only by first and second reflect, its energy compared with
Greatly, and space between also larger.Reverberation sound then passes through multiple reflections, and its energy is smaller, and interval ratio to each other
It is smaller.The present invention is simulated actual scene using Delay Feedback network and realizes final reverberation effect.As shown in the figure：Use 8
Delay cellCarry out simulated sound and reach 8 kinds of different path delay that human ear is passed through.Input x (n) with
Export y (n) -2/N (N=8 of the present invention) mixingAfterwards as the external input of each delay line.Each delay line it is defeated
Go out also feed back to the delay line as feed back input, feed back input and external input mixing, after the delay of delay cell,
Pass through LPF again, be used as the output of the delay line.The output y (n) at the moment is used as after all delay line output mixing.Can
To realize the reflection of reverberation with 8 delay lines.And the feedback for exporting y (n) can be as reverberation sound.
Step 103：Reference picture 5, the voice signal after being rebuild to 3D sound fields space environment is rebuild with 3D sound fields space environment
Business signal of the voice signal afterwards after second-order low-pass filter itself is mixed and exported so that by bass part
Loss made up, further lift Consumer's Experience.
By this method embodiment, by the position relationship according to source of sound and listener, produce and contain sound source position information
Audio signal；And according to the audio signal containing sound source position information, carry out 3D sound fields space environment and restore reconstruction.It is real
The output mode of the panorama audio in VR is showed, sound field is rebuild at any time according to the variation of listener positions.Further by right
Voice signal after 3D sound fields space environment is rebuild carries out being mixed and being exported after second-order low-pass filter with itself so that will
The loss of bass part is made up, and 3D sound fields more have presence, and feeling of immersion acoustically is brought to VR products, lifting
Consumer's Experience.
Embodiment three
Reference picture 3, shows a kind of structured flowchart of VR devices of the embodiment of the present invention.
The VR devices 1 of the present embodiment, including：Sound locating module 2,3D sound fields space environment, which are restored, rebuilds module 3 and low
Sound strengthens module 4.
Wherein, sound locating module 2 produces the sound containing sound source position information according to source of sound and the position relationship of listener
Frequency signal, 3D sound fields space environment restores reconstruction module 3 and contains sound source position information according to the output of sound locating module 2
Audio signal, carry out 3D sound fields space environments and restore to rebuild.Bass boost module 4 rebuilds module 3 to 3D sound fields space environment
The voice signal of output rebuilds sound of the voice signal of the output of module 3 after second-order low-pass filter with 3D sound fields space environment
Signal is mixed and exported.Bass boost module uses structure as shown in Figure 5.
In the present embodiment, it is the position relationship according to source of sound and listener for sound locating module 2, chooses HRTF letters
Number, does convolution by the HRTF impulse response signals of sound source signal and source of sound and obtains the audio signal containing sound source position information.For
Saving memory space, can also pass through FFT operation transforms to frequency domain by the HRTF impulse response signals of sound source signal and source of sound
On do product and obtain the audio signal containing sound source position information.The position of source of sound so both can be effectively positioned, is saved again
Memory space.
In the present embodiment, the delay for rebuilding module 3 using existing digital reverberation is restored for 3D sound fields space environment
Feedback network model, that is, carry out using delay line the reflection of simulated sound.
A kind of VR devices of the present embodiment are used to realize corresponding 3D sound field construction methods in previous embodiment one, and have
There is the beneficial effect of corresponding embodiment of the method, will not be repeated here.
Device embodiment described above is only schematical, wherein the unit illustrated as separating component can
To be or may not be physically separate, the part shown as unit can be or may not be physics list
Member, you can with positioned at a place, or can also be distributed on multiple NEs.It can be selected according to the actual needs
In some or all of module realize the purpose of this embodiment scheme.Those of ordinary skill in the art are not paying creativeness
Work in the case of, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
Realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Understood based on such, on
The part that technical scheme substantially in other words contributes to prior art is stated to embody in the form of software product, should
Computer software product can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including some fingers
Order is to cause a computer equipment (can be personal computer, server, or network equipment etc.) to perform each implementation
Method described in some parts of example or embodiment.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of 3D sound fields construction method, applied to VR products, it is characterised in that including：
According to source of sound and the position relationship of listener, the audio signal containing sound source position information is produced；
According to the audio signal containing sound source position information, carry out 3D sound fields space environment and restore reconstruction.
2. according to the method described in claim 1, it is characterised in that described according to source of sound and the position relationship of listener, generation contains
The step of having the audio signal of sound source position information further comprises：
According to source of sound and the position relationship of listener, head related transfer function HRTF is chosen, by sound source signal and the HRTF of source of sound
Impulse response signal does convolution and obtains the audio signal containing sound source position information.
3. method according to claim 2, it is characterised in that further comprise：
According to source of sound and the position relationship of listener, HRTF functions are chosen, the HRTF impulse responses of sound source signal and source of sound are believed
Number obtain the audio signal containing sound source position information by doing product on FFT operation transforms to frequency domain.
4. according to the method described in claim 1, it is characterised in that the audio letter containing sound source position information described in the basis
Number, carry out the step of 3D sound fields space environment restores reconstruction and further comprise：
According to the audio signal containing audio position information, 3d space ring is carried out using the Delay Feedback network of digital reverberation
Border, which is restored, to be rebuild.
5. according to the method described in claim 1, it is characterised in that further comprise：
Voice signal after voice signal after being rebuild to 3D sound fields space environment is rebuild with 3D sound fields space environment passes through in itself
Voice signal after second-order low-pass filter is mixed and exported.
6. a kind of VR devices, it is characterised in that including：
Sound locating module, for the position relationship according to source of sound and listener, produces the audio letter containing sound source position information
Number；
3D sound fields space environment, which is restored, rebuilds module, for according to the audio signal containing sound source position information, carrying out 3D
Sound field space environment, which is restored, rebuilds.
7. device according to claim 6, it is characterised in that：
The sound locating module, is further used for the position relationship according to source of sound and listener, HRTF functions is chosen, by source of sound
The HRTF impulse response signals of signal and source of sound do convolution and obtain the audio signal containing sound source position information.
8. device according to claim 7, it is characterised in that：
The sound locating module, is further used for the position relationship according to source of sound and listener, HRTF functions is chosen, by source of sound
The HRTF impulse response signals of signal and source of sound are obtained containing sound source position information by doing product on FFT operation transforms to frequency domain
Audio signal.
9. device according to claim 6, it is characterised in that：
The 3D sound fields space environment, which is restored, rebuilds module, is further used for according to the audio letter containing audio position information
Number, 3d space environmental renovation reconstruction is carried out using the Delay Feedback network of digital reverberation.
10. device according to claim 6, it is characterised in that further comprise：
Bass boost module, after being rebuild to the voice signal after the reconstruction of 3D sound fields space environment with 3D sound fields space environment
Voice signal of the voice signal after second-order low-pass filter in itself is mixed and exported.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104687A (en) * | 2018-09-25 | 2018-12-28 | Oppo广东移动通信有限公司 | Sound effect treatment method and Related product |
| CN109754825A (en) * | 2018-12-26 | 2019-05-14 | 广州华多网络科技有限公司 | A kind of audio-frequency processing method, device and equipment |
| CN112205005A (en) * | 2018-05-23 | 2021-01-08 | 皇家Kpn公司 | Adapting acoustic rendering to image-based objects |
| CN113196804A (en) * | 2018-12-13 | 2021-07-30 | 高通股份有限公司 | Sound field modeling for efficient encoding and/or retrieval |
| CN114143698A (en) * | 2021-10-29 | 2022-03-04 | 北京奇艺世纪科技有限公司 | Audio signal processing method and device and computer readable storage medium |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1284195A (en) * | 1997-12-19 | 2001-02-14 | 大宇电子株式会社 | Surround signal processing appts and method |
| CN101511047A (en) * | 2009-03-16 | 2009-08-19 | 东南大学 | Three-dimensional sound effect processing method for double track stereo based on loudspeaker box and earphone separately |
| CN101577848A (en) * | 2009-03-12 | 2009-11-11 | 北京中星微电子有限公司 | Supper bass boosting method and system |
| CN102257562A (en) * | 2008-12-19 | 2011-11-23 | 杜比国际公司 | Method and apparatus for applying reverb to a multi-channel audio signal using spatial cue parameters |
| CN104041081A (en) * | 2012-01-11 | 2014-09-10 | 索尼公司 | Sound Field Control Device, Sound Field Control Method, Program, Sound Field Control System, And Server |
| CN104768121A (en) * | 2014-01-03 | 2015-07-08 | 杜比实验室特许公司 | Generating binaural audio in response to multi-channel audio using at least one feedback delay network |
| CN105792090A (en) * | 2016-04-27 | 2016-07-20 | 华为技术有限公司 | Method and device of increasing reverberation |
| WO2016130834A1 (en) * | 2015-02-12 | 2016-08-18 | Dolby Laboratories Licensing Corporation | Reverberation generation for headphone virtualization |
| CN105900457A (en) * | 2014-01-03 | 2016-08-24 | 杜比实验室特许公司 | Methods and systems for designing and applying numerically optimized binaural room impulse responses |
| CN105992119A (en) * | 2015-02-12 | 2016-10-05 | 杜比实验室特许公司 | Reverberation generation for earphone virtualization |
| CN106658298A (en) * | 2017-02-21 | 2017-05-10 | 广东欧珀移动通信有限公司 | Bass boost processing circuit and terminal device |
-
2017
- 2017-06-08 CN CN201710428555.XA patent/CN107231599A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1284195A (en) * | 1997-12-19 | 2001-02-14 | 大宇电子株式会社 | Surround signal processing appts and method |
| CN102257562A (en) * | 2008-12-19 | 2011-11-23 | 杜比国际公司 | Method and apparatus for applying reverb to a multi-channel audio signal using spatial cue parameters |
| CN101577848A (en) * | 2009-03-12 | 2009-11-11 | 北京中星微电子有限公司 | Supper bass boosting method and system |
| CN101511047A (en) * | 2009-03-16 | 2009-08-19 | 东南大学 | Three-dimensional sound effect processing method for double track stereo based on loudspeaker box and earphone separately |
| CN104041081A (en) * | 2012-01-11 | 2014-09-10 | 索尼公司 | Sound Field Control Device, Sound Field Control Method, Program, Sound Field Control System, And Server |
| CN104768121A (en) * | 2014-01-03 | 2015-07-08 | 杜比实验室特许公司 | Generating binaural audio in response to multi-channel audio using at least one feedback delay network |
| CN105900457A (en) * | 2014-01-03 | 2016-08-24 | 杜比实验室特许公司 | Methods and systems for designing and applying numerically optimized binaural room impulse responses |
| WO2016130834A1 (en) * | 2015-02-12 | 2016-08-18 | Dolby Laboratories Licensing Corporation | Reverberation generation for headphone virtualization |
| CN105992119A (en) * | 2015-02-12 | 2016-10-05 | 杜比实验室特许公司 | Reverberation generation for earphone virtualization |
| CN105792090A (en) * | 2016-04-27 | 2016-07-20 | 华为技术有限公司 | Method and device of increasing reverberation |
| CN106658298A (en) * | 2017-02-21 | 2017-05-10 | 广东欧珀移动通信有限公司 | Bass boost processing circuit and terminal device |
Non-Patent Citations (1)
| Title |
|---|
| 张承云等: ""立体声耳机重发中头中定位"", 《电声技术》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112205005A (en) * | 2018-05-23 | 2021-01-08 | 皇家Kpn公司 | Adapting acoustic rendering to image-based objects |
| CN112205005B (en) * | 2018-05-23 | 2022-06-24 | 皇家Kpn公司 | Adapting acoustic rendering to image-based objects |
| US11450071B2 (en) | 2018-05-23 | 2022-09-20 | Koninklijke Kpn N.V. | Adapting acoustic rendering to image-based object |
| CN109104687A (en) * | 2018-09-25 | 2018-12-28 | Oppo广东移动通信有限公司 | Sound effect treatment method and Related product |
| CN113196804A (en) * | 2018-12-13 | 2021-07-30 | 高通股份有限公司 | Sound field modeling for efficient encoding and/or retrieval |
| CN113196804B (en) * | 2018-12-13 | 2022-03-01 | 高通股份有限公司 | Sound field modeling for efficient encoding and/or retrieval |
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