WO2012111043A1 - Procédé de traitement de signal, dispositif de traitement de signal, dispositif de lecture et programme - Google Patents

Procédé de traitement de signal, dispositif de traitement de signal, dispositif de lecture et programme Download PDF

Info

Publication number
WO2012111043A1
WO2012111043A1 PCT/JP2011/000921 JP2011000921W WO2012111043A1 WO 2012111043 A1 WO2012111043 A1 WO 2012111043A1 JP 2011000921 W JP2011000921 W JP 2011000921W WO 2012111043 A1 WO2012111043 A1 WO 2012111043A1
Authority
WO
WIPO (PCT)
Prior art keywords
level
bass
signal
original sound
envelope
Prior art date
Application number
PCT/JP2011/000921
Other languages
English (en)
Japanese (ja)
Inventor
将知 大竹
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 JP2011551357A priority Critical patent/JP4959861B1/ja
Priority to PCT/JP2011/000921 priority patent/WO2012111043A1/fr
Publication of WO2012111043A1 publication Critical patent/WO2012111043A1/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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/04—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation
    • G10H1/053—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only
    • G10H1/057—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only by envelope-forming circuits
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
    • G10H1/08—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by combining tones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/031—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal
    • G10H2210/066—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal for pitch analysis as part of wider processing for musical purposes, e.g. transcription, musical performance evaluation; Pitch recognition, e.g. in polyphonic sounds; Estimation or use of missing fundamental
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/155—Musical effects

Definitions

  • the present invention relates to a signal processing method, a signal processing device, a playback device, and a program for processing audio signals.
  • a means for detecting a fundamental tone level of a musical tone of a predetermined scale from an original sound a means for extracting a frequency component of a fundamental tone and a harmonic overtone from the original sound, a frequency component below the fundamental tone from the extracted frequency component, and a predetermined scale
  • a means for removing frequency components higher than the harmonics contained in the musical sound, a means for adjusting the level of the musical sound from which the frequency component has been removed according to the detected fundamental level, and a means for amplifying the musical sound after level adjustment and adding it to the original sound Is known (for example, Patent Document 1).
  • the musical sound emphasizing apparatus can enhance a desired musical sound with a natural sound without breaking the harmonic balance.
  • even a speaker that cannot output bass can enhance the harmonics, thereby allowing the user to perceive that the musical sound is emphasized.
  • Patent Document 1 can emphasize bass that has harmonic components such as bass, it is difficult to emphasize bass such as bass drum sounds that do not have harmonics. is there. For this reason, when the speaker which cannot output a low tone is used, the malfunction that a feeling of a beat will be impaired is assumed. In particular, when a musical piece having a low frequency range such as dance music is reproduced, if the beat feeling is impaired, the dancer's performance is affected, which is not preferable.
  • an object of the present invention is to provide a signal processing method, a signal processing device, a playback device, and a program capable of emphasizing a bass without impairing the sense of beat.
  • the signal processing method includes a harmonic overtone extraction step of extracting a harmonic overtone signal in the original sound, a bass envelope generation step of generating a bass envelope that is an envelope of a signal of a predetermined frequency or less in the original sound, and a harmonic overtone A level adjustment step for adjusting the level of the signal according to the level of the bass envelope, an overtone signal after the level adjustment by the level adjustment step, and an addition step for adding the original sound are provided.
  • the signal processing apparatus of the present invention includes a harmonic overtone extraction unit that extracts a harmonic overtone signal from a fundamental tone in an original sound, a bass envelope generation unit that generates a bass envelope that is an envelope of a signal having a predetermined frequency or less in the original sound, and a harmonic overtone It is characterized by comprising level adjusting means for adjusting the level of the signal according to the level of the bass envelope, overtone signal after level adjustment by the level adjusting step, and adding means for adding the original sound.
  • the harmonic signal is level-adjusted according to the level of the bass envelope, it is possible to emphasize the bass including the beat feeling formed by the bass drum or the like. As a result, even when a beat-like piece of music such as dance music is output using a speaker that cannot output bass, there is no problem that the beat feeling is impaired (the attack feeling is weakened) and the dancer becomes difficult to dance. Further, since the harmonic signal to be level-adjusted is a component included in the original sound, it is possible to perform emphasis without feeling uncomfortable without breaking the harmonic balance.
  • the “level adjustment” is a concept including both amplification and attenuation.
  • the above signal processing method further includes a correction step of correcting the level of the bass envelope according to the analysis result of the original sound, and the level adjustment step converts the harmonic signal according to the level of the bass envelope corrected by the correction step. It is characterized by level adjustment.
  • the analysis result of the original sound is information indicating the tempo or beat position
  • the correction step sets the level of the bass envelope in accordance with the beat position of the original sound based on the information indicating the tempo or beat position. It is characterized by correcting.
  • the level of the bass envelope is corrected according to the analysis result of the original sound, it is possible to emphasize the bass suitable for the original sound (music).
  • the level of the bass envelope according to the beat position of the original sound based on the information indicating the tempo or beat position, it is possible to prevent the level adjustment amount from becoming large at a position outside the beat position, and more accurately. It is possible to perform emphasis linked to the beat.
  • analysis results such as the presence / absence of the genre, key, melody, harmony, rhythm, vocal, etc. of the music may be used in addition to BPM (Beats Per Minute) and beat position.
  • the above signal processing method further includes an analysis step for analyzing the original sound, and the correction step corrects the level of the bass envelope according to the analysis result of the analysis step.
  • the adding step is characterized by adding the harmonic signal after level adjustment, the original sound, and the harmonic signal before level adjustment.
  • the above signal processing method further includes a correction step of correcting the level of the bass envelope according to the analysis result of the original sound, and the level adjustment step converts the harmonic signal according to the level of the bass envelope corrected by the correction step.
  • the level adjustment is performed, and the adding step is characterized by adding the harmonic signal after level adjustment, the original sound, and the harmonic signal before level adjustment.
  • the level of the bass envelope is corrected according to the analysis result of the original sound, it is possible to emphasize the bass suitable for the original sound (music). Further, since the harmonic signal before level adjustment is further added to the harmonic signal after level adjustment and the original sound, not only the bass drum sound having no harmonic component but also the bass sound having the harmonic component can be emphasized.
  • the reproduction apparatus of the present invention is characterized by comprising each means in the above signal processing apparatus and an output means for outputting the audio signal after the addition by the addition means.
  • the bass envelope generating means determines a predetermined frequency according to a playback frequency band of a speaker built in or connected to the playback device, and generates a bass envelope below the predetermined frequency.
  • the program of the present invention causes a computer to execute each step in the above signal processing method.
  • FIG. 1 is a block diagram of the playback apparatus 10.
  • the playback apparatus 10 includes, as main components, an input interface (hereinafter referred to as “input I / F”) 11, a main control unit 12, an internal memory 13, an operation unit 14, an audio signal processing unit 15, an amplifier 16, a speaker. 17 is provided.
  • the signal processing device in the claims refers to the audio signal processing unit 15, and the output means refers to the amplifier 16 and the speaker 17.
  • the input I / F 11 inputs music data and music information provided from the host device 20.
  • the host device 20 a personal computer, a mobile terminal (including a smartphone, a mobile phone, a PDA, etc.), a server on the Web or a LAN network, and the like are conceivable.
  • the host device 20 has a music analysis processing unit 21.
  • the music analysis processing unit 21 analyzes the music data and generates analysis data (music feature value).
  • analysis data beat position information, BPM (Beats Per Minute) information, key information, genre information, and the like are generated. These are used in the playback apparatus 10 for music selection (selection of music specifying a genre and key), beat position synchronization processing, and the like.
  • the beat position information is, for example, information indicating the time from the beginning of the music to each beat position in the music, and if the beat position is known, the way of holding the information is not selected.
  • the beat position information included in the music information may use information input by the user instead of using the analysis result of the music analysis processing unit 21.
  • BPM information is information indicating the tempo of music.
  • the key information is information indicating the ratio between the major (major) part and the minor (minor part), the tonality (key) of the music, and the like.
  • regeneration area of a music are analyzed about the music which changes the middle of a music, or the reproduction speed changes.
  • the genre information is information indicating the music classification.
  • the host device 20 reproduces, together with the music data, analysis data that is an analysis result of the music analysis processing unit 21 and accompanying information (meta information such as a song title, artist name, and album name) attached to the music. 10 to provide.
  • analysis data and accompanying information are collectively referred to as music information.
  • the data provided by the host device 20 may be stored in an external storage medium such as a USB memory and read by the playback device 10.
  • the main control unit 12 includes a CPU (Central Processing Unit) and a microcomputer, and controls each unit in the playback apparatus 10.
  • the internal memory 13 stores music data and music information provided from the host device 20.
  • the operation unit 14 includes operation keys and a remote controller provided on the main body of the playback apparatus 10 and is used by the user to perform various operations.
  • the audio signal processing unit 15 processes the music data input from the input I / F 11 or the music data read from the internal memory 13 (audio signal obtained by decoding the music data).
  • the present embodiment is characterized in that the audio signal processing unit 15 emphasizes the bass of the music. Details will be described later.
  • the amplifier 16 adjusts the level of the audio signal processed by the audio signal processing unit 15.
  • the speaker 17 reproduces the audio signal whose level is adjusted by the amplifier 16.
  • the amplifier 16 may be built in the speaker 17.
  • the audio signal processing unit 15 and the amplifier 16 may be realized by software such as a DSP (Digital Signal Processor) or may be realized by an analog device. Further, headphones may be mounted instead of the speakers 17. Further, the speaker 17 may not be provided inside the playback device 10 but may be configured separately.
  • the audio signal processing unit 15 includes a harmonic overtone extraction block 31, a bass envelope generation block 32, a level adjustment block 33, and an addition block 34.
  • the harmonic overtone extraction block 31 extracts a harmonic overtone group (including a fundamental tone) for a specific fundamental tone group in the audio signal (original sound) input to the audio signal processing unit 15. That is, each fundamental sound and its harmonic components included in a specific fundamental sound group are extracted from the original sound.
  • a specific fundamental tone group a frequency matched to the musical scale of a musical instrument that reproduces bass such as bass can be considered.
  • the bass envelope generation block 32 generates a bass envelope 51 (see FIG. 4C, etc.) that is an envelope of a signal (low frequency signal) having a predetermined frequency or lower in the input audio signal.
  • the “predetermined frequency” is determined according to the reproduction frequency band of the speaker 17. Specifically, a value close to the lower limit value of the frequency band that cannot be output by the speaker 17 is set in the internal memory 13 as a “predetermined frequency”.
  • the “predetermined frequency” may be set by the user via the operation unit 14. Further, the user may be able to set the reproduction frequency band of the speaker 17, and a value close to the lower limit value may be set as the “predetermined frequency”. Further, these settings may be performed by the host device 20.
  • the level adjustment block 33 adjusts the level of the harmonic signal extracted by the harmonic extraction block 31 according to the level of the bass envelope 51 generated by the bass envelope generation block 32. For example, it is conceivable to amplify the level of the harmonic signal in proportion to the level of the bass envelope 51. Specifically, the harmonic signal is amplified by multiplying the harmonic signal by the bass envelope 51. At this time, multiplication may be performed after adjusting the amplitude level of the bass envelope 51. Instead of amplification, the level of the harmonic signal may be attenuated.
  • the addition block 34 adds the harmonic signal after level adjustment by the level adjustment block 33 and the audio signal (original sound) input to the audio signal processing unit 15.
  • the audio signal processing unit 15 includes the harmonic extraction block 31, so that a bass having a harmonic component such as a bass tone can be emphasized.
  • the bass envelope generation block 32 is provided and the level of the harmonic overtone group is adjusted according to the level of the bass envelope 51, it is possible to emphasize bass that does not have a harmonic component such as a bass drum sound. As a result, even when a beat-like piece of music such as dance music is output using the speaker 17 that cannot output bass, it can be emphasized without impairing the beat feeling.
  • FIG. 3 is an explanatory diagram of the harmonic overtone extraction block 31.
  • FIG. 4A shows the waveform of the audio signal (original sound) input to the audio signal processing unit 15.
  • FIG. 5B shows the characteristics of a comb filter for extracting a harmonic signal.
  • the comb filter has different characteristics (passband) depending on the scale (fundamental tone).
  • the harmonic overtone extraction block 31 extracts a harmonic overtone signal for the scale (fundamental tone) using a comb filter corresponding to the scale.
  • FIG. 4 is an explanatory diagram of the bass envelope generation block 32.
  • FIG. 6A shows the audio signal waveform input to the audio signal processing unit 15,
  • FIG. 6B shows the low frequency signal, and
  • FIG. 4C shows the absolute processing of the low frequency signal.
  • FIG. 4D shows the envelope (hereinafter referred to as “bass envelope 51”).
  • the bass envelope generation block 32 extracts a low frequency signal (bass) having a frequency equal to or lower than a predetermined frequency from the audio signal by using an LPF (Low-pass filter).
  • LPF Low-pass filter
  • the absolute value of the low frequency signal is taken, and as shown in FIG. 4D, the bass envelope 51 is generated (extracted) using LPF or the like.
  • the bass envelope generation block 32 may be configured to generate the bass envelope 51 using a digital filter that performs discrete Fourier transform instead of the above configuration.
  • the bass envelope 51 is generated, and the harmonic signal is adjusted according to the level of the bass envelope 51. Emphasis can be made. As a result, even when a beat-like music such as dance music is played using the speaker 17 that cannot output bass, there is no problem that the beat feeling is impaired (the attack feeling is weakened) and the dancer becomes difficult to dance. .
  • the harmonic signal to be level-adjusted is a harmonic component included in the original sound, the bass can be emphasized more naturally compared to a method of newly generating a harmonic component.
  • FIG. 1 a second embodiment of the present invention will be described with reference to FIG.
  • the second embodiment is characterized in that a correction block 41 is added to the audio signal processing unit 15 as compared with the first embodiment. Only differences from the first embodiment will be described below.
  • the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
  • the modification applied about the component similar to 1st Embodiment is applied similarly about this embodiment.
  • FIG. 5 is a functional configuration diagram of the audio signal processing unit 15 according to the second embodiment.
  • the correction block 41 is provided after the bass envelope generation block 32 and before the level adjustment block 33.
  • the correction block 41 of this embodiment corrects the level of the bass envelope 51 according to the analysis result of the original sound. That is, level correction is performed according to the analysis data included in the music information added to the music data that is the source of the input original sound. BPM information or beat position information is used as analysis data.
  • the correction block 41 uses these BPM information and beat position information to correct the level of the bass envelope 51 in accordance with the beat position of the original sound.
  • the level of the bass envelope 51 is corrected in accordance with the beat position based on the BPM information and the beat position information. Therefore, the level adjustment amount becomes large at a position outside the beat position. The bass can be emphasized more accurately in conjunction with the beat.
  • BPM information and beat position information are used as analysis data.
  • the level correction of the bass envelope 51 may be performed according to other analysis data (music genre, key, etc.).
  • the host device 20 music analysis processing unit 21
  • the third embodiment is characterized in that the harmonic component before level adjustment is added to the original sound and the harmonic component after level adjustment. Only differences from the first embodiment will be described below.
  • FIG. 6 is a functional configuration diagram of the audio signal processing unit 15 according to the third embodiment.
  • the addition block 34 of the present embodiment includes a harmonic signal whose level has been adjusted by the level adjustment block 33, an audio signal (original sound) input to the audio signal processing unit 15, and a harmonic extraction block 31.
  • the output harmonic signal (harmonic signal whose level is not adjusted) is added.
  • the harmonic signal output from the harmonic extraction block 31 may be added after a certain amount of level adjustment.
  • the harmonic signal before level adjustment is further added to the harmonic signal and original sound after level adjustment, not only the bass drum sound that does not have the harmonic component but also the harmonic component is included.
  • the bass sound can also be emphasized.
  • the fourth embodiment is configured by combining the second embodiment and the third embodiment. That is, a correction block 41 is provided after the bass envelope generation block 32 and before the level adjustment block 33, and the addition block 34 further adds the harmonic signal before level adjustment to the harmonic signal after level adjustment and the original sound. It is the composition to do. With this configuration, in the fourth embodiment, the effects of both the second embodiment and the third embodiment can be achieved.
  • FIG. 8 is a block diagram of the playback apparatus 10 according to a modification.
  • a music analysis processing unit 18 (analysis step) is added as compared with the playback apparatus 10 (see FIG. 1) of the first embodiment.
  • the music analysis processing unit 18 performs music data analysis processing and has the same function as the music analysis processing unit 21 of the first embodiment. That is, the playback device 10 according to the modification has a configuration in which only the music data is acquired from the host device 20.
  • the audio signal processing unit 15 (bass envelope generation block 32) according to the modification obtains information indicating the reproduction frequency band of the speaker 17, and determines a predetermined frequency according to the reproduction frequency band of the speaker 17. Then, the bass envelope 51 having the predetermined frequency or lower is generated. For example, when the reproduction frequency band of the speaker 17 is 100 Hz or more, the predetermined frequency may be “100 Hz”.
  • the “information indicating the reproduction frequency band of the speaker 17” can be obtained by various means such as reading information stored as a set value in a storage area (not shown) or reading an IC chip embedded in the speaker 17. It is.
  • the model number of the speaker may be acquired, and the reproduction frequency band of the speaker 17 may be determined from the model number. Further, when the speaker 17 is externally attached, the reproduction frequency band of the speaker 17 may be determined based on the type of interface, information transmitted from the speaker 17, or the like.
  • the bass is based on the BPM information and the beat position information as shown in the second embodiment and the fourth embodiment. Even when the level of the envelope 51 is corrected, the playback device 10 itself can perform the analysis, so that the host device 20 having the analysis means is not required. Further, since the bass envelope 51 is generated according to the playback frequency band of the speaker 17, it is possible to perform bass enhancement suitable for the speaker 17 mounted on the playback device 10 (or the speaker connected to the playback device 10). .
  • the host device 20 has a music analysis unit 21 and an audio signal processing unit 15.
  • the audio signal processing unit 15 performs processing of music data (audio signal obtained by decoding music data), and has the same function as the audio signal processing unit 15 of the first embodiment.
  • the playback device 10 according to the modified example 2 is configured to acquire processed music data obtained by processing music data from the host device 20.
  • the playback device 10 since the host device 20 is also provided with the music analysis unit 21, the playback device 10 also acquires music information including analysis data by the music analysis unit 21 and accompanying information.
  • the playback device 10 of the second modification has a configuration in which the amplifier 16 and the speaker 17 are separated.
  • the host device 20 is provided on the server on the Web or the server on the LAN network.
  • the music analysis processing unit 21 of the host device 20 generates analysis data (musical feature amount), and the audio signal processing unit 15 performs signal processing that emphasizes the bass signal of the music.
  • the function of the playback device 10 may include an input I / F that performs a music data transmission / reception function, an operation unit 14, and a main control unit 12.
  • each component and each processing step of the reproducing apparatus 10 shown in each of the above-described embodiments can be provided by being stored in various storage media (CD-ROM, flash memory, etc.). That is, a program for realizing each component or each processing step of the playback apparatus 10 and a storage medium storing the program are also included in the scope of the right of the present invention.
  • the audio apparatus for dance is illustrated as the playback apparatus 10, but the present invention is also applied to a playback apparatus that is not specialized for dance music. Is applicable.
  • the playback device 10 can be realized as a function of other devices such as a portable terminal and a car navigation device as well as a playback-only device.
  • the music providing source is not limited to the terminal device, but on a Web server or a LAN network. It may be a server.
  • the present invention may be used as cloud computing.
  • the function of the playback device 10 is at least a data transmission / reception function.
  • all the functions of the playback apparatus 10 can be realized by a computer and can be appropriately changed without departing from the gist of the present invention.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

La présente invention a pour but d'accentuer le son des graves sans affaiblir le battement de la musique, telle que la dance music. L'unité de traitement de signal audio (15) selon la présente invention est caractérisée en ce qu'elle comprend : un bloc d'extraction de son harmonique (31) destiné à extraire un signal harmonique du pas fondamental du son d'origine ; un bloc de génération d'enveloppe des graves (32) permettant de générer une enveloppe des graves qui est une enveloppe destinée à un signal ayant une fréquence inférieure ou égale à une fréquence prédéfinie dans le son d'origine ; un bloc d'ajustement de niveau (33) servant à ajuster le niveau du signal harmonique en fonction du niveau de l'enveloppe des graves ; et un bloc d'addition (34) prévu pour additionner le son d'origine et le signal harmonique après que le niveau de ce dernier a été ajusté au moyen dudit bloc d'ajustement de niveau (33).
PCT/JP2011/000921 2011-02-18 2011-02-18 Procédé de traitement de signal, dispositif de traitement de signal, dispositif de lecture et programme WO2012111043A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2011551357A JP4959861B1 (ja) 2011-02-18 2011-02-18 信号処理方法、信号処理装置、再生装置およびプログラム
PCT/JP2011/000921 WO2012111043A1 (fr) 2011-02-18 2011-02-18 Procédé de traitement de signal, dispositif de traitement de signal, dispositif de lecture et programme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/000921 WO2012111043A1 (fr) 2011-02-18 2011-02-18 Procédé de traitement de signal, dispositif de traitement de signal, dispositif de lecture et programme

Publications (1)

Publication Number Publication Date
WO2012111043A1 true WO2012111043A1 (fr) 2012-08-23

Family

ID=46506043

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/000921 WO2012111043A1 (fr) 2011-02-18 2011-02-18 Procédé de traitement de signal, dispositif de traitement de signal, dispositif de lecture et programme

Country Status (2)

Country Link
JP (1) JP4959861B1 (fr)
WO (1) WO2012111043A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014102396A (ja) * 2012-11-20 2014-06-05 Canon Marketing Japan Inc 情報処理装置、その制御方法、及びプログラム
JP2014116657A (ja) * 2012-12-06 2014-06-26 Pioneer Electronic Corp 音処理装置、音処理装置の制御方法、プログラム
JP2014204221A (ja) * 2013-04-03 2014-10-27 パイオニア株式会社 楽曲再生装置及び音響信号処理方法
JP2015032933A (ja) * 2013-08-01 2015-02-16 クラリオン株式会社 低域補完装置および低域補完方法
JP2017500781A (ja) * 2013-11-06 2017-01-05 ゲネレク オーワイ アクティブスピーカにおけるイコライザ設定を記憶する方法及び装置
JP2018088689A (ja) * 2018-01-12 2018-06-07 パイオニア株式会社 楽曲再生装置及び音響信号処理方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7379988B2 (ja) * 2019-09-20 2023-11-15 株式会社ソシオネクスト 基音周波数決定装置、疑似低音処理装置、基音周波数決定方法および音響処理方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008283305A (ja) * 2007-05-08 2008-11-20 Sony Corp ビート強調装置、音声出力装置、電子機器、およびビート出力方法
WO2009004718A1 (fr) * 2007-07-03 2009-01-08 Pioneer Corporation Dispositif, procédé et programme amplifiant les sons musicaux et support d'enregistrement
JP2010154141A (ja) * 2008-12-25 2010-07-08 Rion Co Ltd 補聴器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008283305A (ja) * 2007-05-08 2008-11-20 Sony Corp ビート強調装置、音声出力装置、電子機器、およびビート出力方法
WO2009004718A1 (fr) * 2007-07-03 2009-01-08 Pioneer Corporation Dispositif, procédé et programme amplifiant les sons musicaux et support d'enregistrement
JP2010154141A (ja) * 2008-12-25 2010-07-08 Rion Co Ltd 補聴器

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014102396A (ja) * 2012-11-20 2014-06-05 Canon Marketing Japan Inc 情報処理装置、その制御方法、及びプログラム
JP2014116657A (ja) * 2012-12-06 2014-06-26 Pioneer Electronic Corp 音処理装置、音処理装置の制御方法、プログラム
JP2014204221A (ja) * 2013-04-03 2014-10-27 パイオニア株式会社 楽曲再生装置及び音響信号処理方法
JP2015032933A (ja) * 2013-08-01 2015-02-16 クラリオン株式会社 低域補完装置および低域補完方法
JP2017500781A (ja) * 2013-11-06 2017-01-05 ゲネレク オーワイ アクティブスピーカにおけるイコライザ設定を記憶する方法及び装置
US10135414B2 (en) 2013-11-06 2018-11-20 Genelec Oy Method and device for storing equalization settings in active loudspeaker
JP2018088689A (ja) * 2018-01-12 2018-06-07 パイオニア株式会社 楽曲再生装置及び音響信号処理方法

Also Published As

Publication number Publication date
JPWO2012111043A1 (ja) 2014-07-03
JP4959861B1 (ja) 2012-06-27

Similar Documents

Publication Publication Date Title
US8436241B2 (en) Beat enhancement device, sound output device, electronic apparatus and method of outputting beats
JP4959861B1 (ja) 信号処理方法、信号処理装置、再生装置およびプログラム
JP4701684B2 (ja) 音声処理装置およびプログラム
JP2008103879A (ja) オーディオ再生装置
JP2012104992A (ja) 再生装置、再生方法、提供装置および再生システム
JP2002215195A (ja) 音楽信号処理装置
JP4237768B2 (ja) 音声処理装置、音声処理プログラム
JP5958378B2 (ja) 音声信号処理装置、音声信号処理装置の制御方法およびプログラム
JP2020056976A (ja) 電子楽器、楽音発生方法及びプログラム
US8195317B2 (en) Data reproduction apparatus and data reproduction method
JP6089651B2 (ja) 音処理装置、音処理装置の制御方法、プログラム
JP6205758B2 (ja) 音響装置、音響装置の制御方法およびプログラム
JP4900062B2 (ja) 音声信号処理装置、音声再生装置および音声信号処理方法
JP4089713B2 (ja) 波形データ再生装置および記録媒体
JP2008268358A (ja) カラオケ装置、歌唱評価方法およびプログラム
JP2007181135A (ja) 特定楽器信号分離方法ならびに装置、およびこれらを備えた楽器スピーカシステムならびに音楽再生システム
JP4892383B2 (ja) 音楽再生装置、音楽再生方法、及び、プログラムを格納した記録媒体
JP4016992B2 (ja) 波形データ解析方法、波形データ解析装置およびコンピュータ読み取り可能な記録媒体
JP6313629B2 (ja) 音声信号処理装置、音声信号処理装置の制御方法およびプログラム
JP2017167323A (ja) 電子楽器
JP5899865B2 (ja) 音響信号加工装置及びプログラム
WO2013150649A1 (fr) Dispositif et procédé de génération de signal de vibration, programme d'ordinateur, support d'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
WO2013024508A1 (fr) Dispositif de traitement audio, dispositif de lecture, procédé de traitement audio et programme
JP2002215163A (ja) 波形データ解析方法、波形データ解析装置および記録媒体

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2011551357

Country of ref document: JP

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

Ref document number: 11858884

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: 11858884

Country of ref document: EP

Kind code of ref document: A1