CN107077839A - For the speech synthesizing device actively rendered for Vehicle Engine Noise - Google Patents
For the speech synthesizing device actively rendered for Vehicle Engine Noise Download PDFInfo
- Publication number
- CN107077839A CN107077839A CN201580050172.2A CN201580050172A CN107077839A CN 107077839 A CN107077839 A CN 107077839A CN 201580050172 A CN201580050172 A CN 201580050172A CN 107077839 A CN107077839 A CN 107077839A
- Authority
- CN
- China
- Prior art keywords
- harmonic wave
- currency
- synthesizing device
- speech synthesizing
- function
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K15/00—Acoustics not otherwise provided for
- G10K15/02—Synthesis of acoustic waves
Landscapes
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The present invention relates to a kind of speech synthesizing device, the speech synthesizing device includes data reception module (30), the data reception module is responsible for sound rendering module (20) and provides data, the sound rendering module includes computer (21), the computer is responsible for generating multifrequency sinusoid group, each multifrequency sinusoid in the multifrequency sinusoid group is weighted by intrinsic gain, and the summation of the multifrequency sinusoid group can generate synthetic digital signal, the synthetic digital signal be engine speed currency and at least one other operational factor currency function, at least one selection for making a reservation for continuous harmonic wave set is implemented in the group of the harmonic wave, gain associated with the harmonic wave for belonging to the set is the currency of the engine speed and the function of at least other operational factor, and the gain associated with being not belonging to the harmonic wave of any one set is only the function of the currency of the engine speed.
Description
Technical field
The present invention relates to the harmonic wave speech synthesizing device field of vehicle.The present invention more particularly relates to be used to make an uproar for engine
This device that sound is actively rendered.
Background technology
Two can effectively cope with making an uproar in vehicle compartment in the progress acquired by car acpistocs field during the last ten years
Sound source (engine noise, running noise, air drag noise or the noise relevant with road excitation).
These improvement substantially reduce the intensity of sound of the ambient noise in compartment, therefore also make the acoustics ring of interior
Border deindividualization.
In order to provide the sound signature consistent with vehicular image, some automakers propose via speech synthesizing device
Rendered for Vehicle Engine Noise electronics.
This device generally includes sound rendering part, and the sound rendering part is responsible for the present engine according to vehicle
Rotating speed carrys out hybrid-engine noise and renders signal, and the engine noise renders signal and played by the audio system of the vehicle.
But composite signal is still quite basic, because for given engine speed, the tone color of the composite signal is always
Identical and can not reflect vehicle other kinetic parameters change.
French patent application FR2924260 describes a kind of speech synthesizing device, and speech synthesizing device generation is more accurate
Composite signal.The device includes memory module, sound rendering module and data reception module (by the computer in the engine of vehicle
Constitute), the data reception module is responsible for sound rendering module and provides numerical data, and the numerical data represents current power
The current depth grade of machine rotating speed and gas pedal.
Each multifrequency sinusoid in sound rendering module generation multifrequency sinusoid group, the multifrequency sinusoid group is by intrinsic gain
Weighting, and the summation of the multifrequency sinusoid group results in synthetic digital signal for being rendered for Vehicle Engine Noise.
Each the frequency of harmonic wave is determined by the linear relation of the function as present engine rotating speed, and each harmonic wave
Amplitude determines according to the table of comparisons suitable for each harmonic wave, and the table of comparisons is according to present engine rotating speed and gas pedal
Current depth grade provides gain.
Therefore the device produces composite signal, and the tone color of the composite signal is simultaneously according to engine speed and gas pedal
Depth levels change, this results in more consistent sound and renders.
Because the device uses multiple one-dimensional interpolation tables, the major defect of the device is to need especially many storage and meter
Resource is calculated, and it is often incompatible with available storage and computing resource in vehicle.
The content of the invention
Therefore, it is an object of the invention to provide a kind of speech synthesizing device, the speech synthesizing device can be generated as
What Vehicle Engine Noise was rendered render signal, it is described to render signal and not only effectively but also adapt to storage and the meter of existing vehicle
Calculate resource.
The present invention provides for this kind of to be used to be the Vehicle Engine Noise actively speech synthesizing device that renders, the sound
Sound synthesizer includes sound rendering module and data reception module, and the data reception module is responsible for the sound rendering
Module provides numerical data, and the numerical data represents the currency of engine speed and at least one other fortune of the vehicle
The currency of row parameter；
The sound rendering module includes computer, and the computer is responsible for generating multifrequency sinusoid group, the multifrequency sinusoid
Each multifrequency sinusoid in group weighted by intrinsic gain, and the summation of the multifrequency sinusoid group can be generated for rendering
Synthetic digital signal, the synthetic digital signal is the currency and at least one other operational factor of the engine speed
The function of currency；
Characterized in that, at least one selection for making a reservation for continuous harmonic wave set is implemented in the group of the harmonic wave, with belonging to
The harmonic wave of the set is associated the described at least one other of the currency that gain is the engine speed and the vehicle
The function of operational factor, and the gain associated with being not belonging to the harmonic wave of any one set is only the engine turn
The function of the currency of speed.
Because the increasing that the only only a part in harmonic wave sum has according to the currency of the multiple operational factors of vehicle to determine
Benefit, results according to the speech synthesizing device of the present invention and provides the synthesis letter that multiple tone colors change for constant engine speed
Number, while taking few storage with computing resource so that the speech synthesizing device and available resources in existing vehicle are complete
It is complete compatible.
According to the preferred feature being used separately or in combination of the speech synthesizing device：
- the gain associated with belonging to the harmonic wave of the set is the currency of the engine speed, gas pedal
The function of the currency of the speed of the currency of depth levels and the vehicle；
- the gain associated with being not belonging to the harmonic wave of any one set is equal to peak factor, the peak factor
Provided by the one-dimensional table of comparisons suitable for the harmonic wave according to the currency of the engine speed；
- the gain associated with belonging to the harmonic wave of the set is equal to the peak factor with being weighted by power constant multiplier
Supplement peak factor sum；
- supplement the peak factor is provided by the one-dimensional table of comparisons suitable for the harmonic wave and is only the engine
The function of the currency of rotating speed；
- power the constant multiplier provides by the two-dimentional table of comparisons suitable for the harmonic wave and is the depth of gas pedal
The function of the currency of the speed of the currency of grade and the vehicle；
- power the constant multiplier is equal to two sub- factors being provided by two tables of comparisons suitable for the harmonic wave
Product, described two sub- factors be respectively the currency of the depth levels of gas pedal function and the vehicle speed it is current
The function of value；
- continuous harmonic wave the set is integrated into the influence shown of some tamber characteristics to select according to the continuous harmonic wave
Select, some described tamber characteristics such as roughness, roundness degree, motility or ostentatious property；
The frequency of-each harmonic wave is slightly modulated very much around the nominal value of the frequency；And/or
- the modulation is provided by low-frequency cycle function or by means of the table of comparisons.
Brief description of the drawings
By reading property illustrated below and the detailed description and the accompanying drawings of non-limiting example, further feature of the invention and
Advantage be will be apparent from, and the function of speech synthesizing device according to the preferred embodiment of the present invention is shown on unique accompanying drawing
Block diagram.
Embodiment
With reference to Fig. 1, memory module 10, sound rendering module 20 and data are included according to the speech synthesizing device 1 of the present invention
Receiving module 30, the data reception module is responsible for the sound rendering module and provides numerical data, the numerical data table
Show the current depth grade of present engine rotating speed and gas pedal.
Data reception module 30 is preferably made up of the computer in the engine of vehicle, because computer in the engine need to follow the trail of car
A number of kinetic parameter (the especially depth levels of instantaneous velocity, engine speed and gas pedal) change with
For ensuring the control to engine.The currency of these different parameters can be therefore by the computer in the engine directly with digital shape
Formula is sent to sound rendering module, without producing extra processing.
In modification, the multiple components and sensor of data reception module 30 and vehicle are connected, the multiple component and
Sensor transmits some of vehicle (preferably between 10 to 20 milliseconds) to the data reception module at predetermined intervals
The currency of kinetic parameter.Then these analogue datas are digitally converted so as to be utilized by sound rendering module 20.
Memory module 10 includes memory living and the nonvolatile memory of EEPROM or FLASH types, described non-easy
The property lost memory storage has multiple tables of comparisons 11,12,13, and the multiple table of comparisons can be handled to be transmitted by data reception module 30
Some input datas.
Suitable for particular harmonic i (i is from 1 to I) each table of comparisons 11 according to engine speed RMCurrency provide and shake
Width coefficient AiValue.
Thus, for example being equal to 50 for harmonic wave sum I, memory module 10 includes 50 one-dimensional tables of comparisons 11.
Suitable for continuous harmonic wave j, (j is from JaTo Jb；For example for first set E1：Ja=5 and Jb=8, for the second collection
Close E2：Ja=15 and Jb=set E 19)kEach table of comparisons 12 of (k is from 1 to K) is according to engine speed RMCurrency give
Go out to supplement peak factor AkValue.
Thus, for example being equal to 5 for set sum K, memory module 10 includes 6 one-dimensional tables of comparisons 12.
Suitable for continuous harmonic wave FjSet EkEach table of comparisons 13 according to the depth levels P of gas pedal and vehicle
Speed V provides power constant multiplier SkValue.
Thus, for example being equal to 5 for set sum K, memory module 10 includes 5 two-dimentional tables of comparisons 13.
Normally due to two-dimentional table of comparisons limited amount for harmonic wave sum, depositing required by speech synthesizing device 1
Store up resource still especially rationally and compatible with storage resource currently available in vehicle.
The one group of table of comparisons 11,12,13 of storage within the module 10 is applied to the given power set of specific vehicle：It is included in
Empirically determined after the test that value in these tables is implemented in by laboratory.
Sound rendering module 20 is responsible for generating multifrequency sinusoid group via computer 21, in the multifrequency sinusoid group it is each just
String harmonic wave is weighted by intrinsic gain, and the summation of the multifrequency sinusoid group is resulted in for being Vehicle Engine Noise wash with watercolours
The synthetic digital signal S of dye.
Therefore the composite signal is defined by below equation：
Wherein, FiAnd GiCorrespond respectively to the current gain that frequency is designated as i harmonic wave with.
Computer 21 for example can be by DSP (" Digital Signal Processing (Digital Signal Processing) ") type
Microprocessor is constituted, and the microprocessor has the minimum running frequency of megahertz (MHz) magnitude, so as in maximum audible frequency
Rate for 20kHZ magnitudes sound when base on fully implement operation.
Each frequency F in harmonic wave iiPass through the present engine rotating speed R of vehicleMLinear function determine, the line
Property function is defined by following equation：
Wherein C is the characteristic (number of cylinders included by especially engine) according to engine and predetermined constant.
Each gain G in harmonic wave iiItself determined by means of the table of comparisons 11,12,13, the table of comparisons is stored in
In memory in module 10, whether belong to harmonic wave set E for obtaining the computational methods of the gain according to harmonic wavekIn one
And it is different.
For being not belonging to these set EkIn the harmonic wave i of one, associated gain G is equal to peak factor A, described to shake
Width coefficient is provided by the table of comparisons 11 suitable for the harmonic wave and is only engine speed RMCurrency function.
For belonging to these set EkIn the harmonic wave i of one, associated gain G obtains by below equation：
Gi=Ai+(Ai*Sk),
Wherein,
-AkCorresponding to supplement peak factor, the supplement peak factor is provided simultaneously by the table of comparisons 12 suitable for the harmonic wave
And only engine speed RMCurrency function；And
-SkCorresponding to power constant multiplier, the power constant multiplier is provided simultaneously by the table of comparisons 13 suitable for the harmonic wave
And be the depth levels P of gas pedal currency and car speed V currency function.
Continuous harmonic wave set EkIt is integrated into the influence shown of some tamber characteristics to select according to the continuous harmonic wave,
Some described tamber characteristics such as roughness, roundness degree, motility or ostentatious property.
Therefore, it is equal to 50 for harmonic wave sum I, for example, selects two continuous harmonic wave set E1 and E2, it is described two continuous
Harmonic wave set corresponds respectively to harmonic wave 5 to 8 and 15 to 19, and associated with two special tamber features.
Speech synthesizing device 1 also includes mixing module 40, and the mixing module is responsible for according to some transmitted by module 30
The currency of vehicle power parameter ensures the dynamic control of the amplitude to composite signal S, and by the other of the signal and vehicle
Digital audio source is mixed.
In the output end of the mixing module 40, blended data signal can be converted into by digital/analog converter 50
Analoging sound signal, the analoging sound signal passes through followed by one or more loudspeakers 70 in analogue amplifier 60,
Played afterwards in vehicle.Analogue amplifier 60 can be for example the usual Simulation scale-up found out in all audio-frequence player devices
Device.
According to the implementation modification for the speech synthesizing device for meeting the present invention, power constant multiplier SkEqual to by humorous suitable for this
Two sub- factor S that two tables of comparisons of ripple are providedk1And Sk2Product, described two sub- factors are the depth of gas pedal respectively
The function of the function of grade P currency and car speed V currency.
The advantage of the modification is less committed memory resource, because the one-dimensional table of comparisons is only used in the modification.As setoff,
The tone color for the voice signal that the tone color of voice signal through synthesis is not produced slightly by speech synthesizing device 10 is fine and smooth.
According to other implementation modifications, each harmonic wave i frequency is slightly modulated very much around the nominal value of the frequency (should
Modulation phenomenon generally name in English by term " jitter (bounce) ").
Therefore each frequency F in harmonic wave i is defined by below equation：
Wherein δ FiProvided by (sinusoidal or other types of) low-frequency cycle function or by means of the table of comparisons.
The addition for being somebody's turn to do " bounce " is able to ensure that the more preferable mixing of different harmonic waves, and avoids due to being produced by vehicle motor
Particular phases between raw harmonic wave and the harmonic wave by being generated according to the speech synthesizing device of the present invention are combined and are likely to occur
Modulation phenomenon.
Certainly, the invention is not restricted to described and shown embodiment, the present invention, which includes those skilled in the art, to be obtained
All implementation modifications obtained.
Claims (10)
1. a kind of speech synthesizing device for being used to actively render for Vehicle Engine Noise, the speech synthesizing device includes sound
Synthesis module (20) and data reception module (30), the data reception module are responsible for the sound rendering module (20) and carried
For numerical data, the numerical data represents engine speed (RM) currency and the vehicle at least one other operation
The currency of parameter,
The sound rendering module (20) includes computer (21), and the computer is responsible for generating multifrequency sinusoid group, the sine
Each multifrequency sinusoid in harmonic wave group is weighted by intrinsic gain (G), and the summation of the multifrequency sinusoid group can generate use
In the synthetic digital signal (S) rendered, the synthetic digital signal is the engine speed (RM) currency and at least one
The function of the currency of individual other operational factors,
Characterized in that, at least one makes a reservation for continuous harmonic wave set (Ek) selection implement in the group of the harmonic wave, with belonging to institute
State set (Ek) harmonic wave be associated gain (G) be the engine speed (RM) currency and the vehicle it is described at least
The function of one other operational factor, and with being not belonging to any one described set (Ek) the associated gain (G) of harmonic wave only
Only it is the engine speed (RM) currency function.
2. speech synthesizing device according to claim 1, it is characterised in that with belonging to the set (Ek) harmonic wave it is related
The gain (G) of connection is the engine speed (RM) currency, the currency and the car of the depth levels (P) of gas pedal
Speed (V) currency function.
3. speech synthesizing device according to claim 1 or 2, it is characterised in that with being not belonging to any one described set
(Ek) the associated gain (G) of harmonic wave be equal to peak factor (A), the peak factor is by suitable for the one-dimensional right of the harmonic wave
According to table (11) according to the engine speed (RM) currency provide.
4. speech synthesizing device according to claim 3, it is characterised in that with belonging to the set (Ek) harmonic wave it is related
The gain (G) of connection is equal to the peak factor (A) and by power constant multiplier (Sk) weighting supplement peak factor (Ak) sum.
5. speech synthesizing device according to claim 4, it is characterised in that the supplement peak factor (Ak) by suitable for
The one-dimensional table of comparisons (12) of the harmonic wave provides and is only the engine speed (RM) currency function.
6. the speech synthesizing device according to claim 4 or 5, it is characterised in that the power constant multiplier (Sk) by being applicable
Provide in the two-dimentional table of comparisons (13) of the harmonic wave and be the currency and the vehicle of the depth levels (P) of gas pedal
The function of the currency of speed (V).
7. the speech synthesizing device according to claim 4 or 5, it is characterised in that the power constant multiplier (Sk) be equal to by
The two sub- factor (S provided suitable for two tables of comparisons of the harmonic wavek1, Sk2) product, described two sub- factors be respectively oil
The function of the function of the currency of the depth levels (P) of door pedal and the currency of the speed (V) of the vehicle.
8. speech synthesizing device according to any one of claim 1 to 7, it is characterised in that the continuous harmonic wave set
(Ek) be integrated into the influence shown of some tamber characteristics to select according to the continuous harmonic wave, some tamber characteristics example
Such as roughness, roundness degree, motility or ostentatious property.
9. speech synthesizing device according to any one of claim 1 to 8, it is characterised in that the frequency of each harmonic wave is enclosed
Nominal value around the frequency is slightly modulated very much.
10. speech synthesizing device according to claim 9, it is characterised in that the modulation by low-frequency cycle function or
Provided by means of the table of comparisons.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1458840 | 2014-09-18 | ||
| FR1458840A FR3026218B1 (en) | 2014-09-18 | 2014-09-18 | SOUND SYNTHESIS DEVICE FOR THE ACTIVE COLORING OF THE NOISE OF A VEHICLE ENGINE |
| PCT/FR2015/052453 WO2016042244A1 (en) | 2014-09-18 | 2015-09-14 | Sound synthesis device intended for the active coloration of the noise of a vehicle engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107077839A true CN107077839A (en) | 2017-08-18 |
| CN107077839B CN107077839B (en) | 2020-12-08 |
Family
ID=52102803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580050172.2A Active CN107077839B (en) | 2014-09-18 | 2015-09-14 | Sound synthesis device for actively rendering vehicle engine noise |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3195305B1 (en) |
| CN (1) | CN107077839B (en) |
| FR (1) | FR3026218B1 (en) |
| WO (1) | WO2016042244A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108032800A (en) * | 2017-12-06 | 2018-05-15 | 滁州松泽电器有限公司 | Synthetic method, device and the electronic equipment of sound |
| CN115019765A (en) * | 2022-06-30 | 2022-09-06 | 浙江吉利控股集团有限公司 | Active sound acquisition method and device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3503089B1 (en) * | 2017-12-22 | 2023-10-18 | Marelli Europe S.p.A. | Apparatus for the active control of the sound of the engine of a land vehicle and corresponding method |
| CN111798831B (en) * | 2020-06-16 | 2023-11-28 | 武汉理工大学 | Sound particle synthesis method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090028353A1 (en) * | 2007-07-25 | 2009-01-29 | Honda Motor Co., Ltd. | Active sound effect generating apparatus |
| US20110216916A1 (en) * | 2010-03-03 | 2011-09-08 | Hera Cristian M | Vehicle engine sound enhancement |
| US20120177214A1 (en) * | 2011-01-11 | 2012-07-12 | Hera Cristian M | Vehicle engine sound enhancement |
| FR2974441A1 (en) * | 2011-04-19 | 2012-10-26 | Renault Sa | GENERATING A ROTATING MACHINE SOUND OF AN APPARATUS |
| CN103625395A (en) * | 2013-12-05 | 2014-03-12 | 合肥工业大学 | System for improving in-vehicle moving sound sensing quality of electric vehicle |
-
2014
- 2014-09-18 FR FR1458840A patent/FR3026218B1/en active Active
-
2015
- 2015-09-14 EP EP15771689.5A patent/EP3195305B1/en active Active
- 2015-09-14 WO PCT/FR2015/052453 patent/WO2016042244A1/en active Application Filing
- 2015-09-14 CN CN201580050172.2A patent/CN107077839B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090028353A1 (en) * | 2007-07-25 | 2009-01-29 | Honda Motor Co., Ltd. | Active sound effect generating apparatus |
| US20110216916A1 (en) * | 2010-03-03 | 2011-09-08 | Hera Cristian M | Vehicle engine sound enhancement |
| US20120177214A1 (en) * | 2011-01-11 | 2012-07-12 | Hera Cristian M | Vehicle engine sound enhancement |
| FR2974441A1 (en) * | 2011-04-19 | 2012-10-26 | Renault Sa | GENERATING A ROTATING MACHINE SOUND OF AN APPARATUS |
| CN103625395A (en) * | 2013-12-05 | 2014-03-12 | 合肥工业大学 | System for improving in-vehicle moving sound sensing quality of electric vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108032800A (en) * | 2017-12-06 | 2018-05-15 | 滁州松泽电器有限公司 | Synthetic method, device and the electronic equipment of sound |
| CN115019765A (en) * | 2022-06-30 | 2022-09-06 | 浙江吉利控股集团有限公司 | Active sound acquisition method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3195305B1 (en) | 2020-10-28 |
| EP3195305A1 (en) | 2017-07-26 |
| FR3026218A1 (en) | 2016-03-25 |
| FR3026218B1 (en) | 2016-10-28 |
| WO2016042244A1 (en) | 2016-03-24 |
| CN107077839B (en) | 2020-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107077839A (en) | For the speech synthesizing device actively rendered for Vehicle Engine Noise | |
| CN103544949A (en) | Engine sound synthesis | |
| KR102270676B1 (en) | Apparatus for providing environmental noise compensation for a synthesized vehicle sound | |
| EP1865494B1 (en) | Engine sound processing device | |
| CN103718242B (en) | Adopt the system and method for the treatment of voice signal of spectrum motion transform | |
| US11410637B2 (en) | Voice synthesis method, voice synthesis device, and storage medium | |
| CN106465004B (en) | Dynamic voice is adjusted | |
| JP2014202856A (en) | Engine sound output device and engine sound output method | |
| CN105956153B (en) | The search platform of music file is obtained at internet | |
| DE102007055477B4 (en) | Process for the synthetic production of engine noise, in particular an internal combustion engine | |
| EP3288023B1 (en) | System and method for synthesizing an engine sound | |
| CN1828720A (en) | Sound effecter, fundamental tone extraction method, and computer program | |
| CN102881283A (en) | Method and system for processing voice | |
| CN109410907A (en) | Noise processing method, device, equipment and the storage medium of cloud rail | |
| CN108944749A (en) | Vehicle denoising device and method | |
| EP2133865A2 (en) | Sound synthesizer | |
| CN108831492B (en) | A kind of method, apparatus, equipment and readable storage medium storing program for executing handling voice data | |
| JP2018077283A (en) | Speech synthesis method | |
| CN108806721A (en) | signal processor | |
| US8750530B2 (en) | Method and arrangement for processing audio data, and a corresponding corresponding computer-readable storage medium | |
| CN208789579U (en) | A kind of electric car sound warning system | |
| JP6645480B2 (en) | Sound generation device, sound generation control program | |
| JP7147639B2 (en) | audio output device | |
| JP2009244567A (en) | Melody line identification system and program | |
| CN112420004A (en) | Method and device for generating songs, electronic equipment and computer readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |