CA2814434C - Systeme d'egalisation adaptative - Google Patents
Systeme d'egalisation adaptative Download PDFInfo
- Publication number
- CA2814434C CA2814434C CA2814434A CA2814434A CA2814434C CA 2814434 C CA2814434 C CA 2814434C CA 2814434 A CA2814434 A CA 2814434A CA 2814434 A CA2814434 A CA 2814434A CA 2814434 C CA2814434 C CA 2814434C
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- CA
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- Prior art keywords
- speech
- signal
- curve
- equalization coefficients
- term
- 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.)
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- 230000003044 adaptive effect Effects 0.000 title claims abstract description 34
- 238000005259 measurement Methods 0.000 claims abstract description 57
- 230000007774 longterm Effects 0.000 claims abstract description 53
- 230000003595 spectral effect Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 31
- 230000006978 adaptation Effects 0.000 claims description 25
- 230000004044 response Effects 0.000 claims description 11
- 238000001228 spectrum Methods 0.000 claims description 11
- 238000004364 calculation method Methods 0.000 claims description 7
- 238000010606 normalization Methods 0.000 claims description 6
- 238000012935 Averaging Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 11
- 238000009499 grossing Methods 0.000 description 9
- 230000015654 memory Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 230000005236 sound signal Effects 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
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- 230000002411 adverse Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
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- 230000009466 transformation Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
- G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0264—Noise filtering characterised by the type of parameter measurement, e.g. correlation techniques, zero crossing techniques or predictive techniques
Abstract
Un système d'égalisation adaptative qui règle la forme spectrale d'un signal vocal en fonction d'une mesure d'intelligibilité de ce dernier peut améliorer l'intelligibilité du signal vocal de sortie. Un tel système d'égalisation adaptative peut comprendre un module de mesure d'intelligibilité vocale, un module de réglage de forme spectrale et un module d'égalisation adaptative. Le module de mesure d'intelligibilité vocale est configuré pour calculer une mesure d'intelligibilité vocale d'un signal vocal. Le module de réglage de la forme spectrale est configuré pour générer une courbe vocale à long terme pondérée basée sur une première courbe vocale moyenne à long terme prédéterminée, une seconde courbe vocale moyenne à long terme prédéterminée et la mesure d'intelligibilité vocale. Le module d'égalisation adaptative est configuré pour adapter les coefficients d'égalisation pour le signal vocal en fonction de la courbe vocale à long terme pondérée.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12166906.3A EP2660814B1 (fr) | 2012-05-04 | 2012-05-04 | Système d'égalisation adaptative |
| EP12166906.3 | 2012-05-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2814434A1 CA2814434A1 (fr) | 2013-11-04 |
| CA2814434C true CA2814434C (fr) | 2016-08-16 |
Family
ID=46022132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2814434A Active CA2814434C (fr) | 2012-05-04 | 2013-05-01 | Systeme d'egalisation adaptative |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2660814B1 (fr) |
| CA (1) | CA2814434C (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5740353B2 (ja) * | 2012-06-05 | 2015-06-24 | 日本電信電話株式会社 | 音声明瞭度推定装置、音声明瞭度推定方法及びそのプログラム |
| CN105989853B (zh) * | 2015-02-28 | 2020-08-18 | 科大讯飞股份有限公司 | 一种音频质量评测方法及系统 |
| GB2553571B (en) * | 2016-09-12 | 2020-03-04 | Jaguar Land Rover Ltd | Apparatus and method for privacy enhancement |
| IT202000010435A1 (it) * | 2020-05-08 | 2021-11-08 | Rai Radiotelevisione Italiana Spa | Metodo per migliorare la percezione della qualita' di un segnale audio digitale emesso da un ricevitore di segnali televisivi, in particolare del tipo a schermo piatto, e relativo dispositivo |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2492091C (fr) * | 2002-07-12 | 2009-04-28 | Widex A/S | Aide auditive et procede pour ameliorer l'intelligibilite d'un discours |
| US7844453B2 (en) | 2006-05-12 | 2010-11-30 | Qnx Software Systems Co. | Robust noise estimation |
| US8296136B2 (en) * | 2007-11-15 | 2012-10-23 | Qnx Software Systems Limited | Dynamic controller for improving speech intelligibility |
-
2012
- 2012-05-04 EP EP12166906.3A patent/EP2660814B1/fr active Active
-
2013
- 2013-05-01 CA CA2814434A patent/CA2814434C/fr active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP2660814A1 (fr) | 2013-11-06 |
| EP2660814B1 (fr) | 2016-02-03 |
| CA2814434A1 (fr) | 2013-11-04 |
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