WO2012124044A1 - Dispositif et procédé de production d'un signal de vibrations, programme d'ordinateur et système sensoriel audio - Google Patents

Dispositif et procédé de production d'un signal de vibrations, programme d'ordinateur et système sensoriel audio Download PDF

Info

Publication number
WO2012124044A1
WO2012124044A1 PCT/JP2011/055942 JP2011055942W WO2012124044A1 WO 2012124044 A1 WO2012124044 A1 WO 2012124044A1 JP 2011055942 W JP2011055942 W JP 2011055942W WO 2012124044 A1 WO2012124044 A1 WO 2012124044A1
Authority
WO
WIPO (PCT)
Prior art keywords
vibration
signal
vibration signal
change point
amplitude
Prior art date
Application number
PCT/JP2011/055942
Other languages
English (en)
Japanese (ja)
Inventor
勝利 稲垣
高橋　努
Original Assignee
パイオニア株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by パイオニア株式会社 filed Critical パイオニア株式会社
Priority to PCT/JP2011/055942 priority Critical patent/WO2012124044A1/fr
Publication of WO2012124044A1 publication Critical patent/WO2012124044A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/03—Synergistic effects of band splitting and sub-band processing

Definitions

  • the present invention relates to a vibration signal generation apparatus and method for generating a vibration signal having a relatively low frequency supplied to an electro-mechanical vibration converter employed in, for example, a body sensation sound apparatus, a computer program, and a body sensation sound system technique.
  • an electro-mechanical vibration converter employed in, for example, a body sensation sound apparatus, a computer program, and a body sensation sound system technique.
  • a music signal input to drive a transducer that converts an electrical signal into mechanical vibration is equalized according to switching of a mode switch (in this case, a cutoff frequency and an amplification degree).
  • a mode switch in this case, a cutoff frequency and an amplification degree.
  • Patent Document 2 a rising portion of an output signal is generated based on a rising portion of each cycle of an input signal having a frequency component, and the level is gradually increased from the peak level of the rising portion of the generated output signal.
  • An effector is described that attenuates to produce an attenuation portion of the output signal.
  • Patent Document 1 has a technical problem that it may be difficult to provide a user with a sufficiently sharp body vibration.
  • the present invention has been made in view of the above problems, for example, and provides a vibration signal generation device and method, a computer program, and a body sensation sound system that can provide a user with vibrant body vibration.
  • the vibration signal generation device of the present invention includes a frequency component in a vibration frequency band that is a frequency band narrower than the audible band, from an acoustic signal including a frequency component in the audible band.
  • Vibration signal generating means for generating a vibration signal that is a signal; (i) calculating a vibration change point that is a point on a time axis in which time variation of the acoustic signal satisfies a predetermined condition; and (ii) the generated vibration Among the generated vibration signals, the generated vibration signal so that the amplitude of the vibration signal immediately before the vibration change point is smaller than the amplitude of the vibration signal immediately after the vibration change point.
  • a correcting means for correcting.
  • the vibration signal generation means can generate an acoustic signal including a frequency component within an audible band (that is, 20 Hz (hertz) to 20000 Hz) in a frequency band narrower than the audible band.
  • a vibration signal that is a signal composed of frequency components within a certain vibration frequency band is generated. Since various known modes can be applied to the generation method of the vibration signal, the detailed description thereof is omitted here.
  • the “vibration frequency band” is typically set as a frequency band (for example, 60 Hz to 130 Hz) that can be appropriately converted into mechanical vibration by an electro-mechanical vibration converter. Such a “vibration frequency band” may be appropriately set according to the performance of the target electro-mechanical vibration converter.
  • the correction means including a memory, a processor, etc. (i) calculates the vibration change point of the acoustic signal, and (ii) among the generated vibration signals, the amplitude of the vibration signal immediately before the vibration change point is generated. Among the generated vibration signals, the generated vibration signal is corrected so as to be smaller than the amplitude of the vibration signal immediately after the vibration change point.
  • the “predetermined conditions” are: (i) the amount of change in the amplitude of the frequency component of the acoustic signal is greater than a predetermined value; and (ii) a period determined according to the lowest frequency of the vibration frequency band (for example, the lowest frequency is 50 Hz). In some cases, they are separated from each other by 0.02 seconds or more (that is, a certain period of time has passed since the previous vibration change point).
  • the “vibration change point” is a time axis in which the amplitude change amount of the frequency component of the acoustic signal is larger than a predetermined value and separated from each other by a period determined according to the lowest frequency of the vibration frequency band. Means a point.
  • a point where the amount of change in the amplitude of the frequency component of the acoustic signal is larger than a predetermined value corresponds to a so-called “sound generation position” in the acoustic signal.
  • the “vibration change point” can be rephrased as a sounding position “separated from each other for a period determined according to the lowest frequency of the vibration frequency band” among the sounding positions.
  • the “sound generation position” refers to the timing at which one sound is emitted by an instrument that emits the one sound in a music composed of a plurality of continuous sounds on the time axis.
  • vibration change point may be obtained as follows, for example. That is, (i) First, fast Fourier transform is performed on an acoustic signal, and the sum of the increase in power of each frequency component constituting the acoustic signal is obtained at one time, and from another time different from the one time. The vibration change point is a candidate on the condition that the change rate is greater than a predetermined value. (Ii) Next, among the plurality of vibration change point candidates, points that are separated from each other by a period determined according to the lowest frequency of the vibration frequency band are determined as vibration change points.
  • an acoustic signal is often supplied to an electromechanical vibration converter as it is. Then, since processing such as amplification is performed on all of the supplied acoustic signals, there is a possibility that the vibration experienced by the user may be little or no inflection depending on the acoustic signals.
  • a device that extracts only a relatively low frequency component from an acoustic signal using a low-pass filter and supplies it to an electro-mechanical vibration converter has been proposed. I can't say that.
  • the correction means calculates (i) the vibration change point of the acoustic signal, and (ii) among the generated vibration signals, the amplitude of the vibration signal immediately before the vibration change point is generated.
  • the generated vibration signal is corrected so as to be smaller than the amplitude of the vibration signal immediately after the vibration change point. For this reason, before and after the vibration change point, it is possible to provide the user with a relatively large change in vibration, that is, a sharp sense of vibration.
  • the correction means attenuates the amplitude of the vibration signal immediately before the vibration change point, so that the amplitude of the vibration signal immediately before the vibration change point becomes the vibration change.
  • the generated vibration signal is corrected so as to be smaller than the amplitude of the vibration signal immediately after the point.
  • the correction means amplifies the amplitude of the vibration signal immediately after the vibration change point, so that the amplitude of the vibration signal immediately before the vibration change point becomes the vibration.
  • the generated vibration signal is corrected so as to be smaller than the amplitude of the vibration signal immediately after the change point.
  • the vibration signal generation method of the present invention includes a frequency component in a vibration frequency band that is a frequency band narrower than the audible band, from an acoustic signal including a frequency component in the audible band.
  • vibration signal generation method of the present invention it is possible to provide the user with vigorous bodily sensation vibration, similar to the vibration signal generation apparatus of the present invention described above.
  • vibration signal generation method of the present invention various aspects similar to the various aspects of the vibration signal generation apparatus of the present invention described above can be employed.
  • the computer program of the present invention causes a computer to detect from an acoustic signal including a frequency component in an audible band, from a frequency component in a vibration frequency band that is a frequency band narrower than the audible band.
  • the computer program of the present invention is compared with the above-described vibration signal generating device if the computer program included in the vibration signal generating device is downloaded after being transmitted via the communication means. Can be realized easily. Thereby, similarly to the case of the vibration signal generation device of the present invention described above, it is possible to provide the user with a vivid sense of vibration.
  • the computer program of the present invention can also adopt various aspects similar to the various aspects of the vibration signal generating apparatus of the present invention described above.
  • the recording medium of the present invention stores the computer program of the present invention in order to solve the above problems.
  • the above-described computer program of the present invention is generated from the recording medium such as CD-ROM (Compact Disc Only Memory), DVD-ROM (DVD Read Only Memory), etc. If it is read and executed by a computer provided in the apparatus, the above-described vibration signal generating apparatus of the present invention can be realized relatively easily. As a result, similar to the case of the vibration signal generation device of the present invention described above, it is possible to provide a user with vivid bodily sensation vibration.
  • the body sensation vibration system of the present invention is a body sensation sound system including a terminal device, a server device, and an electromechanical vibration conversion device connected to each other via a network.
  • the apparatus includes storage means for storing a plurality of music data and music information indicating a list of the plurality of music data
  • the terminal device includes a receiving means capable of receiving a user input, and the network.
  • the server device corresponds to one piece of music data specified by the music specifying signal, and vibrations having a frequency band narrower than the audible band from an acoustic signal including a frequency component within the audible band
  • Vibration signal generating means for generating a vibration signal that is a signal composed of frequency components in a frequency band; and (i) calculating a vibration change point that is a point on a time axis in which time variation of the acoustic signal satisfies a predetermined condition, (Ii) Among the generated vibration signals, the amplitude of the vibration signal immediately before the vibration change point is smaller than the amplitude of the vibration signal immediately after the
  • the terminal device, the server device, and the electro-mechanical vibration converter are connected to each other via a network such as the Internet or a LAN (Local Area Network).
  • the terminal device includes an accepting unit and a first communication unit.
  • the server device includes a storage unit, a vibration signal generation unit, a correction unit, and a second communication unit.
  • the body sensation acoustic system of the present invention it is possible to provide a user with vivid body sensation vibration, similar to the vibration signal generation device of the present invention described above.
  • FIG. 1 is a block diagram illustrating a configuration of a vibration signal generation device according to the present embodiment.
  • FIG. 1 for convenience of explanation, only members directly related to the present invention are shown, and the other members are not shown.
  • the vibration signal generation device 10 includes a vibration change point calculation unit 11, a vibration signal generation unit 12, a vibration signal strength control unit 13, and a signal input unit 14.
  • the signal input unit 14 is configured to be able to accept music data stored or recorded in, for example, a flash memory, a hard disk drive, an optical disk, or the like, or audio data input via a microphone (not shown).
  • the vibration change point calculation unit 11 calculates the vibration change point of the audio signal corresponding to the music data input via the signal input unit 14.
  • the vibration signal generation unit 12 generates a vibration signal that is a signal including a frequency component in a vibration frequency band that is a frequency band narrower than the audible band, from an audio signal including a frequency component of the audible band.
  • the vibration signal strength control unit 13 has the amplitude of the vibration signal immediately before the vibration change point in the generated vibration signal smaller than the amplitude of the vibration signal immediately after the vibration change point in the generated vibration signal. Thus, the generated vibration signal is corrected.
  • the “vibration change point calculation unit 11” and the “vibration signal strength control unit 13” according to the present embodiment are examples of the “correction unit” according to the present invention.
  • the “vibration signal generation unit 12” according to the present embodiment is an example of the “vibration signal generation unit” according to the present invention.
  • vibration signal generation processing Next, vibration signal generation processing in the vibration signal generation device 10 configured as described above will be specifically described with reference to the flowchart of FIG. Here, it is assumed that music data is input via the signal input unit 14.
  • the vibration change point calculation unit 11 calculates the change point of the audio signal (see FIG. 3A) corresponding to the music data input via the signal input unit 14 (FIG. 3B). ) (See broken line)) (step S101).
  • the “change point” is calculated as a point on the time axis (that is, calculated as “time”).
  • FIG. 4 is a conceptual diagram illustrating an example of a change point calculation method according to the present embodiment.
  • the vibration change point calculation unit 11 performs, for example, a fast Fourier transform (FFT) on the audio signal, and the frequency at a certain time (here, time t1) as shown in FIG. And the FFT power are obtained.
  • FFT fast Fourier transform
  • the vibration change point calculation unit 11 calculates the sum of the increments of the FFT power related to each frequency component (for example, the difference between the FFT power at time t1 and the FFT power at time t1-1).
  • the change point of the audio signal is calculated based on the rate of increase of the sum of the FFT power increases.
  • the vibration change point calculation unit 11 calculates the change point of the audio signal based on the following relational expression.
  • P (t1, f) means the sum of increments of the FFT power at each frequency at time t1
  • N (t1) is calculated from the FFT power around P (t1, fx) at time t1. This means the calculated degree of change.
  • the vibration change point calculation unit 11 extracts a part of the frequency components included in the audio signal (for example, the frequency f2 to the frequency f3; see the shaded portion in FIG. 4B), The change point may be obtained based on the sum of the increments of the FFT power related to each of the extracted frequency components.
  • the vibration change point calculation unit 11 extracts vibration change points whose intervals are equal to or greater than a specific interval from the calculated plurality of change points (see the broken line in FIG. 3C).
  • the vibration signal generation unit 12 In parallel with or in parallel with the processing of steps S101 and S102 described above, the vibration signal generation unit 12 generates a vibration signal composed of frequency components in a vibration frequency band such as 60 Hz to 130 Hz from the audio signal. (Step S103). Note that the amplitude of the generated vibration signal is determined according to the amplitude of the input audio signal.
  • the vibration signal strength control unit 13 determines that the amplitude of the vibration signal immediately before the vibration change point in the generated vibration signal is the amplitude of the vibration signal immediately after the vibration change point in the generated vibration signal.
  • the generated vibration signal is corrected by performing mask processing so as to be smaller than that (step S104).
  • FIG. 5 is a conceptual diagram showing the concept of the mask processing according to the present embodiment.
  • the vibration signal strength control unit 13 performs a mask process on the generated vibration signal (see FIG. 5A) using, for example, a cosine type mask as shown in FIG.
  • the average amplitude of the vibration signal immediately before the vibration change point (see circle a1) as shown in FIG. 6 is made lower than the average amplitude of the vibration signal immediately after the vibration change point (see circle a2).
  • vibration change point of the vibration signal is the same as the vibration change point (that is, time) calculated in the process of step S102 described above, for example, as shown in FIG.
  • a vibration signal as shown in FIG. 6A is corrected as shown in FIG. 6B, for example.
  • FIG. 6A is an example of a vibration signal
  • FIG. 6B is an example of a vibration signal subjected to mask processing.
  • the mask used in the mask process is not limited to the cosine mask shown in FIG. 5, but is a linear mask as shown in FIGS. 7B and 7C, for example, as shown in FIG. 7D.
  • the end portion of the mask may be before the vibration change point 2 as shown in FIG. In this case, when the mask process is performed on the vibration signal as shown in FIG. 8B, the vibration signal as shown in FIG. 8C is obtained.
  • FIG. 9 is a block diagram illustrating a configuration of the acoustic experience system according to the first example.
  • the arrow in a figure has shown the flow of a signal (same in subsequent figures).
  • the body sensation sound system 100 includes a vibration signal generation device 10 and an electromechanical vibration converter 40.
  • the vibration signal generation device 10 includes the low-pass filter 12 as the vibration signal generation unit 12 described above.
  • the signal input unit 14 transmits an audio signal supplied from the outside to the vibration change point calculation unit 11 and the low-pass filter 12.
  • the vibration change point calculation unit 11 calculates a vibration change point of the audio signal, and transmits a signal indicating the calculated vibration change point to the vibration signal strength control unit 40.
  • the vibration signal strength control unit 13 performs a predetermined mask process on the vibration signal generated by the low-pass filter 12 based on the received signal indicating the vibration change point. Then, the vibration signal strength control unit 13 transmits the vibration signal subjected to the mask processing to the electro-mechanical vibration converter 40.
  • the vibration signal strength is reduced so that the mask process is not performed on the vibration signal.
  • the control unit 13 may be configured.
  • FIG. 10 is a block diagram illustrating a configuration of the acoustic experience system according to the second embodiment.
  • the description which overlaps with 1st Example is abbreviate
  • the body sensation sound system 200 includes a vibration signal generation device 10, a user interface unit 20, a memory 30, an electro-mechanical vibration converter 40, a delay circuit (Delay) 50, and an output terminal (Audio OUT) 60. Configured.
  • the user interface unit 20 includes, for example, a display unit (not shown) that provides a user with a music selection screen, a mode selection screen, etc., buttons and the like (not shown) for the user to perform input operations, have.
  • a display unit not shown
  • buttons and the like not shown for the user to perform input operations, have.
  • the “mode selection screen” names corresponding to a plurality of frequency bands (for example, “vocal tracking”, “base tracking”, “frequency band designation”) are displayed.
  • the frequency band is set as a fixed value in advance by the manufacturer or the like for “vocal tracking” and “base tracking” (so-called preset values).
  • the “frequency band designation” allows the user to freely set the frequency band.
  • a signal indicating the selected piece of music data is transmitted to the memory 30. Then, one piece of music data is transmitted from the memory 30 to the signal input unit 14 of the vibration signal generation device 10.
  • the frequency band corresponding to the selected name (hereinafter referred to as “vibration conversion” as appropriate).
  • a signal indicating the band “) is transmitted to the vibration change point calculation unit 11 of the vibration signal generation device 10.
  • the signal input unit 14 transmits one piece of music data to the vibration change point calculation unit 11.
  • the signal input unit 14 further transmits one piece of music data to the output terminal 60 via the delay circuit 50.
  • the vibration change point calculation unit 11 that has received one piece of music data calculates a vibration change point based on the received one piece of music data and a signal indicating a vibration change band. That is, the vibration change point calculation unit 11 extracts a frequency component within the vibration change band from the frequency components included in one piece of music data, and changes the vibration based on the FFT power and the like related to the extracted frequency component. Calculate points.
  • the vibration change point calculation unit 11 transmits one piece of music data and a signal indicating the calculated vibration change point to the vibration signal generation unit 12.
  • the vibration signal generator 12 generates a vibration signal from the received piece of music data.
  • the vibration signal generation unit 12 transmits a generated vibration signal and a signal indicating a vibration change point to the vibration signal strength control unit 13.
  • the vibration signal strength control unit 13 performs a predetermined mask process on the vibration signal based on the signal indicating the vibration change point. Then, the vibration signal strength control unit 13 transmits the vibration signal subjected to the mask processing to the electro-mechanical vibration converter 40.
  • one piece of music data output from the output terminal 60 is delayed by a period caused by the delay circuit 50, the reproduction position of one piece of music data and the vibration generated by the electromechanical vibration converter 40 are used. And can be synchronized.
  • FIG. 11 is a block diagram illustrating a configuration of the acoustic experience system according to the third example.
  • the description which overlaps with 1st Example is abbreviate
  • the body sensation sound system 300 includes a terminal device 301, a server device 302, and a vibration unit 303 that are connected to each other via a network 304.
  • the interface unit 20 of the terminal device 301 acquires music information indicating a list of one or more music data stored in the memory 30 of the server device 302 via the communication unit 312, the network 304, and the communication unit 322.
  • the interface unit 20 displays the acquired music information to the user.
  • the interface unit 20 When the interface unit 20 receives an input indicating one piece of music data among the pieces of music data indicated by the piece of music information, the interface unit 20 sends a music specifying signal for specifying one piece of music data to the server unit 302, The data is transmitted via the network 304 and the communication unit 322.
  • the control unit 321 of the server device 302 transmits one piece of music data specified by the received music specifying signal to the playback unit 311 of the terminal device 301 via the communication unit 322, the network 304, and the communication unit 312. To do.
  • the control unit 321 further transmits one piece of music data to the vibration signal generation device 10.
  • the control unit 321 sends the vibration signal subjected to the mask processing output from the vibration signal generation device 10 to the electro-mechanical vibration conversion unit 40 of the vibration unit 303 through the communication unit 322, the network 304, and the communication unit 331. Send through.
  • the “interface unit 20” according to the present embodiment is an example of “accepting means” and “display means” according to the present invention.
  • “Memory 30”, “communication unit 312”, and “communication unit 322” according to the present embodiment are examples of “storage unit”, “first communication unit”, and “second communication unit” according to the present invention, respectively. is there.
  • SYMBOLS 10 Vibration signal generator, 11 ... Vibration change point calculation part, 12 ... Vibration signal generation part, 13 ... Vibration signal strength control part, 14 ... Signal input part, 20 ... User interface part, 40 ... Electro-mechanical vibration converter , 100, 200, 300 ... sensory acoustic system

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • User Interface Of Digital Computer (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

L'invention concerne un dispositif de production de signal de vibrations (10) comprenant : un moyen de production de signal de vibrations (12) qui produit un signal de vibrations comprenant des composantes de fréquence au sein d'une bande de fréquences de vibrations qui est une bande de fréquences plus étroite qu'une bande audible, à partir d'un signal audio comprenant des composantes de fréquence dans la bande audible ; et un moyen de correction (11, 13) qui (i) calcule des points de changement de vibrations du signal audio et (ii) corrige le signal de vibrations produit, de sorte que l'amplitude du signal de vibrations produit juste avant un point de changement de vibrations soit inférieur à l'amplitude du signal de vibrations produit juste après le point de changement de vibrations.
PCT/JP2011/055942 2011-03-14 2011-03-14 Dispositif et procédé de production d'un signal de vibrations, programme d'ordinateur et système sensoriel audio WO2012124044A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/055942 WO2012124044A1 (fr) 2011-03-14 2011-03-14 Dispositif et procédé de production d'un signal de vibrations, programme d'ordinateur et système sensoriel audio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/055942 WO2012124044A1 (fr) 2011-03-14 2011-03-14 Dispositif et procédé de production d'un signal de vibrations, programme d'ordinateur et système sensoriel audio

Publications (1)

Publication Number Publication Date
WO2012124044A1 true WO2012124044A1 (fr) 2012-09-20

Family

ID=46830178

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/055942 WO2012124044A1 (fr) 2011-03-14 2011-03-14 Dispositif et procédé de production d'un signal de vibrations, programme d'ordinateur et système sensoriel audio

Country Status (1)

Country Link
WO (1) WO2012124044A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002064895A (ja) * 2000-08-22 2002-02-28 Nippon Telegr & Teleph Corp <Ntt> 信号処理方法、装置及びプログラム記録媒体
JP2009094561A (ja) * 2007-10-03 2009-04-30 Panasonic Corp 音響再生装置、音響再生システム、および音響再生方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002064895A (ja) * 2000-08-22 2002-02-28 Nippon Telegr & Teleph Corp <Ntt> 信号処理方法、装置及びプログラム記録媒体
JP2009094561A (ja) * 2007-10-03 2009-04-30 Panasonic Corp 音響再生装置、音響再生システム、および音響再生方法

Similar Documents

Publication Publication Date Title
US10097939B2 (en) Compensation for speaker nonlinearities
US9014397B2 (en) Signal processing device and signal processing method
JP5488128B2 (ja) 信号処理装置
JP5811993B2 (ja) ヘッドホン、ヘッドホンのノイズ低減方法、ノイズ低減処理用プログラム
JP2008122729A (ja) ノイズ低減装置、ノイズ低減方法、ノイズ低減プログラムおよびノイズ低減音声出力装置
JP2012168947A (ja) 振幅値を利用した音響−触覚効果変換システム
JP4750153B2 (ja) 音響装置及び音響調整方法
KR101152781B1 (ko) 스피커 공진 감쇄 방법 및 장치
US10708690B2 (en) Method of an audio signal correction
WO2012124044A1 (fr) Dispositif et procédé de production d&#39;un signal de vibrations, programme d&#39;ordinateur et système sensoriel audio
KR101292772B1 (ko) 음원 재생 장치에서 음향 특성을 계측하여 향상시키는방법, 이에 적합한 기록 매체 그리고 이에 적합한 장치
JP6597062B2 (ja) 雑音低減装置、雑音低減方法、雑音低減プログラム
WO2013186901A1 (fr) Dispositif et procédé de génération de signaux de vibrations, programme informatique, support d&#39;enregistrement et système sonore sensoriel
WO2013150649A1 (fr) Dispositif et procédé de génération de signal de vibration, programme d&#39;ordinateur, support d&#39;enregistrement et système audio sensoriel
JP5714774B2 (ja) 振動信号生成装置及び方法、コンピュータプログラム、記録媒体並びに体感音響システム
JP5556673B2 (ja) 音声信号補正装置、音声信号補正方法及びプログラム
WO2012124043A1 (fr) Dispositif et procédé de production d&#39;un signal de vibrations, programme d&#39;ordinateur et système sensoriel audio
WO2013186902A1 (fr) Dispositif et procédé de génération de signaux de vibrations, programme informatique, support d&#39;enregistrement et système sonore sensoriel
JP5880753B2 (ja) ヘッドホン、ヘッドホンのノイズ低減方法、ノイズ低減処理用プログラム
JP2016123059A (ja) 信号生成装置、および端末装置
JP2011211547A (ja) 収音装置および収音システム
JP4950119B2 (ja) 音響処理装置及び音響処理方法
JP6538002B2 (ja) 目的音集音装置、目的音集音方法、プログラム、記録媒体
JP5707892B2 (ja) 電子機器及び通信システム
JP2014126593A (ja) 支援システム

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11861107

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11861107

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP