EP2436004A1 - Procede pour detecter des paroles dans la voix et utilisation de ce procede dans un jeu de karaoke - Google Patents
Procede pour detecter des paroles dans la voix et utilisation de ce procede dans un jeu de karaokeInfo
- Publication number
- EP2436004A1 EP2436004A1 EP10728822A EP10728822A EP2436004A1 EP 2436004 A1 EP2436004 A1 EP 2436004A1 EP 10728822 A EP10728822 A EP 10728822A EP 10728822 A EP10728822 A EP 10728822A EP 2436004 A1 EP2436004 A1 EP 2436004A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- state
- voice
- instantaneous
- signal
- voicing
- 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
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004458 analytical method Methods 0.000 claims abstract description 29
- 238000000605 extraction Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 description 15
- 230000006870 function Effects 0.000 description 10
- 230000001755 vocal effect Effects 0.000 description 5
- 230000033764 rhythmic process Effects 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000001020 rhythmical effect Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Classifications
-
- 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
- G10H1/36—Accompaniment arrangements
- G10H1/361—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
- G10L2025/783—Detection of presence or absence of voice signals based on threshold decision
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/93—Discriminating between voiced and unvoiced parts of speech signals
- G10L2025/932—Decision in previous or following frames
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/90—Pitch determination of speech signals
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/93—Discriminating between voiced and unvoiced parts of speech signals
Definitions
- the present invention relates to a method for detecting lyrics sung in the voice.
- the invention aims in particular to provide a simple method to implement and little consumer resources to detect speech in the voice.
- the invention finds a particularly advantageous, but not exclusive, application for "karaoke" type applications. Recall that Karaoke is a game in which the player sings a known song on an accompaniment usually in place of the original singer, usually following the lyrics on a screen. Alternatively, the invention could also be used in voice interactive applications, for example in any video game in which it is desired to detect if the player speaks.
- Karaoke video games such as "SingStar” (registered trademark) only evaluate the accuracy of a player's song in relation to a reference melody. As a result, a player who hums in rhythm the melody (without singing the lyrics) will get the same score or a better score than a player who actually sings the lyrics. Indeed, by humming, the player can focus only on the accuracy of the melody and / or the rhythmic precision, which is much easier than if he had to make the effort to place the good lyrics of the song on the good melody and / or on the right rhythm.
- the present invention makes it possible to check whether the player sings the lyrics in a much simpler way than the traditional voice recognition, by tackling the problem in an original way: one does not seek to "recognize” the words sung by the player, which does not does not really make sense since these are already known (they are displayed on the screen), but to "check” if the player sings words, instead of for example simply humming the melody.
- phonemic alternation means what relates to phonemes, that is to say to each of the sounds composing a language.
- This phonemic alternation can for example be defined by an alternation between vowels and consonants, or between voiced sounds and voiceless sounds, or between various vowels, or between various consonants etc.
- Hum is understood to be the absence of phonemic alternation.
- voiced sounds such as “la la la”, “mmmm”, “ah ah ah” characterized by an absence of alternation between voiced sounds and voiceless sounds and therefore a absence of phonemic alternation if one chooses to define it by an alternation of voiced sounds and unvoiced sounds.
- a person who sings the lyrics of a song alternates, except exception, the emission of voiced sounds and unvoiced sounds.
- the invention proposes to distinguish the phonemic alternation, that is to say the pronunciation of words in relation to the absence of phonemic alternation (humming). [010].
- a sound is said “voiced” if its production is accompanied by a vibration of the vocal chords, and “voiceless” otherwise.
- the spoken language is a collection of voices and voiced consonants that vibrate the vocal chords and unvoiced consonants that do not vibrate the vocal chords, we naturally observe this alternation between voiced and unvoiced sounds. This is true for the main languages spoken in the world.
- the sound emitted corresponds to a continuous emission of voiced sounds of the type "IaIaIa” or "aaaaaa” or "mmmmmmm".
- the phonemic alternation related to the voiced and unvoiced character of the voice is measured.
- a voicing coefficient of the voice is calculated which has high values when the sound of the voice is voiced and low values when the sound of the voice is not voiced.
- this voicing coefficient corresponds to the measurement of the quality of the extraction of the fundamental frequency of the voice signal.
- the invention thus consists in verifying only if the player utters real words and is not humming, without ensuring that the lyrics actually correspond to the lyrics of the song. It is therefore not useful to check if "the" sung words are the true lyrics of the song, but only if "lyrics” are sung. Indeed, if the humming is an important help in this kind of games, singing other lyrics on a song is rather an additional difficulty for the player.
- the measure of voicing / non-voicing is only one way of measuring phonemic alternation. Any other method of measuring a variation, such as variation in pronounced consonants (measuring the presence of certain consonants by other methods than measuring the rate of voicing) or variation of pronounced vowels (in the vowel triangle), would produce the same type of result.
- consonants and / or vowels are separated into several groups, for example four groups of consonants and vowels. If all consonants and vowels belong to the same group, then the person can be considered to be humming. On the other hand, if the group to which the consonants and or vowels belong varies, the person is saying words, that is to say a text whose content varies in terms of consonants and / or vowels.
- the invention thus relates to a method for distinguishing the pronunciation of words with respect to the humming in a voice signal of a user, characterized in that it comprises the following steps:
- the reference period precedes the instant of analysis.
- the voicing coefficient is the quality parameter in the extraction of the fundamental frequency of the voice signal.
- the reference period is of the order of 1 second.
- the step of comparing the voicing parameter with the threshold value is performed only if the energy of the voice signal is greater than a threshold value.
- the voice signal being sampled it comprises the following steps:
- the voicing coefficient is compared with a threshold
- the instantaneous state can also take the "silence" state corresponding to the absence of a sound of sufficient power
- the instantaneous energy of the voice signal is compared with a first threshold
- the analysis period is 20ms and the duration of the reference period 1 s.
- the voice signal is sampled at 16kHz.
- the invention further relates to the use of the method according to the invention in a Karaoke game type application.
- the implementation of the method according to the invention is inhibited for voiced passages of song having a duration greater than the duration of the reference period or on passages of songs arbitrarily chosen.
- Figure 1 a graphical representation as a function of time of the amplitude of a voice signal and of the fundamental frequency which has been extracted using a fundamental frequency detection algorithm and the quality signal the extraction of the fundamental frequency;
- Figure 2 a schematic representation of the steps of the method according to the invention for calculating instantaneous states of the voice signal
- Figure 3 a schematic representation of the steps of the method according to the invention for detecting whether the player sings words or hums from the instantaneous states of the voice signal;
- FIG. 4 a graphical representation of the amplitude of the voice signal corresponding to sung words as well as the activated or deactivated state of the speech detection function according to the invention during the course of the song.
- Figure 1 shows a schematic representation of the amplitude of a voice signal S as a function of time t.
- the instantaneous energy E.sub.i and the voicing coefficient V.sub.re of the voicing of the voice are measured for all the points Pi of the signal S of the voices analyzed at the instants of Analysis ti spaced apart over time by a period of analysis TA.
- this state “State_Pi” can be the state “silence” corresponding to the absence of a voice signal of sufficient power, the "voiced” state corresponding to the emission of a sound of voiced nature, and the "unvoiced” state corresponding to the emission of a sound of unvoiced nature.
- the instantaneous energy Ei of the voice signal S is compared in a step 13 with a threshold A.
- this threshold is equal to 0.02 for a normalized signal. If the energy Ei of the signal is lower than the threshold A, then it is deduced in a step 15 that the instantaneous state "State_Pi" of the point Pi is
- the voicing coefficient Vi with a threshold B is compared in a step 17.
- B is equal to 0.3 for a normalized signal. If the voicing coefficient Vi is lower than the threshold B then deduces that the sound is unvoiced in a step 18 (the instantaneous state "State_Pi" is then "unvoiced”). This means that the player is probably pronouncing a sound including P, T, K, B 1 D 1 G 1 CH 1 F 1 S.
- the voicing coefficient Vi corresponds to the Q coefficient of the measurement of the fundamental frequency detection quality by the frequency detection algorithm represented as a function of time by the curve S.
- the extraction quality corresponds to the reliability of the detection of the fundamental frequency
- the quality Q of the extraction of the fundamental frequency of the voice signal S which is in very close relation with the voicing of the voice, will be very high for the voiced parts of the voice at during which the vocal chords vibrate, which makes it possible to easily extract the fundamental frequency of the signal S of voice
- the quality Q of the extraction of the fundamental frequency of the signal S of voice will be low for the parts not voiced at during which the vocal chords do not vibrate or very little, which makes it difficult to extract the fundamental frequency of the signal S of voice.
- the fundamental frequency detection algorithm is the YIN algorithm.
- This algorithm known to those skilled in the art, is precisely described in the France Telecom patent document having the French national registration number 0107284.
- the quality of detection of the height is the value (1-d 1 ), d 'being the function the averaged and standardized difference of the YIN algorithm as described in the France Telecom patent document having the French national registration number 0107284, and represented as a function of time by the curve S ".
- the voicing coefficient is for example a measure of the non-harmonic noise contained in the audio signal, measured for example by the zero-crossing rate (ZCR), a low value of ZCR being characteristic of a voiced sound while a high value of ZCR is characteristic of an unvoiced sound.
- ZCR zero-crossing rate
- the use of the ZCR is particularly advantageous in the case where it is desired to minimize the CPU consumption of the system.
- TRi reference duration
- the number of stored state_Pj instantaneous states could be different to perform analysis over a shorter or longer reference period TRi.
- the reference period TRi may be replaced by a set of points around the instant ti, whether these points are before or after the instant ti.
- State_Pj instantaneous of the signal S are silences. If this is the case, we deduce that the instant ti of analysis is a moment of silence. Otherwise we deduce that ti is not a moment of silence and we then determines whether it is a moment ti sung or hummed.
- a step 30 For this purpose, in a step 30, one keeps among the last 50 instantaneous states of the signal only the instantaneous states "State_Pj" of type “voiced” or "unvoiced” excluding the states of silence. Then, in a step 33, it is analyzed whether all the stored "State_Pj" instantaneous states are "voiced” states. If this is the case, then it is deduced in step 34 that the signal S of voice corresponds to a hum at time ti since it is a priori impossible to not observe at least one unvoiced passage during of the TRi reference period in a sung language.
- step 35 the voice signal S corresponds to a song of words at the instant ti since it is a priori natural to observe at least one unvoiced passage during the TRi reference period in a language sung with words.
- the player may be penalized for each moment ti during which he hummed instead of singing the lyrics of the song to be interpreted, or otherwise rewarded for each moment ti where he has sung with the words.
- FIG. 4 shows the amplitude 41 of the voice signal S corresponding to the words 42 of a song in which the entirely voiced passage 42.1 "the moon my friend" (in gray) has a duration TD greater than the duration TR of the reference period.
- the speech detection function according to the invention is inhibited over the period TD (turned OFF) but activated for the rest of the song (turned ON). [054].
- the detection of silences in the voice signal S optimizes the operation of the method according to the invention as it prevents certain parasitic white noise from being arbitrarily considered as voiced or unvoiced type sounds.
- the steps 13, 15, 27 and 29 for silence detection are suppressed and the instantaneous state "State_Pi" of the signal S is "voiced” or "unvoiced”, and then simply analyzed.
- the instantaneous states of the voice signal S are analyzed over the reference period TRi. We deduce that the player hums if all these instantaneous states are of type voiced and that he sings in the opposite case.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
- Electrophonic Musical Instruments (AREA)
- Telephonic Communication Services (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0953603A FR2946175B1 (fr) | 2009-05-29 | 2009-05-29 | Procede pour detecter des paroles dans la voix et utilisation de ce procede dans un jeu de karaoke |
PCT/FR2010/051013 WO2010136722A1 (fr) | 2009-05-29 | 2010-05-27 | Procede pour detecter des paroles dans la voix et utilisation de ce procede dans un jeu de karaoke |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2436004A1 true EP2436004A1 (fr) | 2012-04-04 |
EP2436004B1 EP2436004B1 (fr) | 2014-04-02 |
Family
ID=41227263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10728822.7A Active EP2436004B1 (fr) | 2009-05-29 | 2010-05-27 | Procede pour detecter des paroles chantees et utilisation de ce procede dans un jeu de karaoke |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2436004B1 (fr) |
ES (1) | ES2477198T3 (fr) |
FR (1) | FR2946175B1 (fr) |
WO (1) | WO2010136722A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2988894B1 (fr) * | 2012-03-30 | 2014-03-21 | Adeunis R F | Procede de detection de la voix |
CN102930873B (zh) * | 2012-09-29 | 2014-04-09 | 福州大学 | 基于信息熵的音乐哼唱检测方法 |
US9202520B1 (en) * | 2012-10-17 | 2015-12-01 | Amazon Technologies, Inc. | Systems and methods for determining content preferences based on vocal utterances and/or movement by a user |
CN109147783B (zh) * | 2018-09-05 | 2022-04-01 | 厦门巨嗨科技有限公司 | 基于k歌系统的语音识别方法、介质及系统 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6023674A (en) * | 1998-01-23 | 2000-02-08 | Telefonaktiebolaget L M Ericsson | Non-parametric voice activity detection |
US7674181B2 (en) * | 2005-08-31 | 2010-03-09 | Sony Computer Entertainment Europe Ltd. | Game processing |
KR20120008088A (ko) * | 2006-12-27 | 2012-01-25 | 인텔 코오퍼레이션 | 음성 세그먼트화를 위한 방법 및 장치 |
-
2009
- 2009-05-29 FR FR0953603A patent/FR2946175B1/fr active Active
-
2010
- 2010-05-27 EP EP10728822.7A patent/EP2436004B1/fr active Active
- 2010-05-27 WO PCT/FR2010/051013 patent/WO2010136722A1/fr active Application Filing
- 2010-05-27 ES ES10728822.7T patent/ES2477198T3/es active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2010136722A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2436004B1 (fr) | 2014-04-02 |
WO2010136722A1 (fr) | 2010-12-02 |
FR2946175A1 (fr) | 2010-12-03 |
FR2946175B1 (fr) | 2021-06-04 |
ES2477198T3 (es) | 2014-07-16 |
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