HK1199135A1 - Selective post filter - Google Patents

Selective post filter

Info

Publication number
HK1199135A1
HK1199135A1 HK14112416.5A HK14112416A HK1199135A1 HK 1199135 A1 HK1199135 A1 HK 1199135A1 HK 14112416 A HK14112416 A HK 14112416A HK 1199135 A1 HK1199135 A1 HK 1199135A1
Authority
HK
Hong Kong
Prior art keywords
post filter
selective post
selective
filter
post
Prior art date
Application number
HK14112416.5A
Other languages
English (en)
Chinese (zh)
Inventor
Barbara Resch
Kristofer Kjoerling
Lars Villemoes
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=44504387&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK1199135(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Publication of HK1199135A1 publication Critical patent/HK1199135A1/xx

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • G10L19/125—Pitch excitation, e.g. pitch synchronous innovation CELP [PSI-CELP]
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • 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
    • G10L21/003—Changing voice quality, e.g. pitch or formants
    • 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
    • G10L21/003—Changing voice quality, e.g. pitch or formants
    • G10L21/007—Changing voice quality, e.g. pitch or formants characterised by the process used
    • 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
    • G10L21/003—Changing voice quality, e.g. pitch or formants
    • G10L21/007—Changing voice quality, e.g. pitch or formants characterised by the process used
    • G10L21/013—Adapting to target pitch
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0212—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • G10L19/107—Sparse pulse excitation, e.g. by using algebraic codebook
HK14112416.5A 2010-07-02 2014-12-10 Selective post filter HK1199135A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36123710P 2010-07-02 2010-07-02

Publications (1)

Publication Number Publication Date
HK1199135A1 true HK1199135A1 (en) 2015-06-19

Family

ID=44504387

Family Applications (8)

Application Number Title Priority Date Filing Date
HK13111395.3A HK1183965A1 (en) 2010-07-02 2013-10-10 Selective post filter
HK14112416.5A HK1199135A1 (en) 2010-07-02 2014-12-10 Selective post filter
HK16106487.9A HK1218462A1 (zh) 2010-07-02 2016-06-07 選擇性低音後置濾波器
HK16106714.4A HK1218803A1 (zh) 2010-07-02 2016-06-12 選擇性低音後置濾波器
HK16106925.9A HK1218987A1 (zh) 2010-07-02 2016-06-16 自適應後置濾波器
HK16107107.7A HK1219168A1 (zh) 2010-07-02 2016-06-21 選擇性低音後置濾波器
HK16108033.4A HK1220036A1 (zh) 2010-07-02 2016-07-11 音高增强後置濾波器
HK16109188.5A HK1221326A1 (zh) 2010-07-02 2016-08-02 用於音頻信號的音高增强濾波器

Family Applications Before (1)

Application Number Title Priority Date Filing Date
HK13111395.3A HK1183965A1 (en) 2010-07-02 2013-10-10 Selective post filter

Family Applications After (6)

Application Number Title Priority Date Filing Date
HK16106487.9A HK1218462A1 (zh) 2010-07-02 2016-06-07 選擇性低音後置濾波器
HK16106714.4A HK1218803A1 (zh) 2010-07-02 2016-06-12 選擇性低音後置濾波器
HK16106925.9A HK1218987A1 (zh) 2010-07-02 2016-06-16 自適應後置濾波器
HK16107107.7A HK1219168A1 (zh) 2010-07-02 2016-06-21 選擇性低音後置濾波器
HK16108033.4A HK1220036A1 (zh) 2010-07-02 2016-07-11 音高增强後置濾波器
HK16109188.5A HK1221326A1 (zh) 2010-07-02 2016-08-02 用於音頻信號的音高增强濾波器

Country Status (18)

Country Link
US (14) US9224403B2 (xx)
EP (8) EP3605534B1 (xx)
JP (13) JP6178236B2 (xx)
KR (12) KR102079000B1 (xx)
CN (7) CN105261371B (xx)
AU (1) AU2011273680B2 (xx)
CA (13) CA2929090C (xx)
DK (2) DK3079153T3 (xx)
ES (6) ES2666150T3 (xx)
HK (8) HK1183965A1 (xx)
HU (2) HUE039862T2 (xx)
IL (10) IL311020A (xx)
MX (1) MX2012014525A (xx)
MY (4) MY176187A (xx)
PL (2) PL3079152T3 (xx)
RU (6) RU2562422C2 (xx)
SG (7) SG10201605650WA (xx)
WO (1) WO2012000882A1 (xx)

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EP3483886A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Selecting pitch lag
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CN105244035B (zh) 2019-03-12
RU2599338C1 (ru) 2016-10-10
HK1218987A1 (zh) 2017-03-17
JP6279686B2 (ja) 2018-02-14
EP2589046B1 (en) 2014-05-28
KR101696634B1 (ko) 2017-01-16
CA2976485C (en) 2018-07-24
IL302557B1 (en) 2024-04-01
US20210035592A1 (en) 2021-02-04
HK1183965A1 (en) 2014-01-10
US9224403B2 (en) 2015-12-29
KR20210040184A (ko) 2021-04-12
US10811024B2 (en) 2020-10-20
JP2017037328A (ja) 2017-02-16
IL223319A0 (en) 2013-02-03
CN103098129A (zh) 2013-05-08
US20130096912A1 (en) 2013-04-18
CN105261372A (zh) 2016-01-20
IL246684A0 (en) 2016-08-31
KR101972762B1 (ko) 2019-04-29
MY176192A (en) 2020-07-24
CN105244035A (zh) 2016-01-13
US9858940B2 (en) 2018-01-02
CA3093517A1 (en) 2012-01-05
CN105261371A (zh) 2016-01-20
JP6258257B2 (ja) 2018-01-10
MX2012014525A (es) 2013-08-27
EP3422346A1 (en) 2019-01-02
IL295473B1 (en) 2023-06-01
RU2019135620A (ru) 2021-05-06
EP3422346B1 (en) 2020-04-22
KR102238082B1 (ko) 2021-04-09
CN105355209B (zh) 2020-02-14
US20160118057A1 (en) 2016-04-28
US11183200B2 (en) 2021-11-23
US9552824B2 (en) 2017-01-24
JP2022177215A (ja) 2022-11-30
US20220157327A1 (en) 2022-05-19
CA3093517C (en) 2021-08-24
JP6682683B2 (ja) 2020-04-15
EP3079153B1 (en) 2018-08-01
US9830923B2 (en) 2017-11-28
SG10201503004WA (en) 2015-06-29
ES2902392T3 (es) 2022-03-28
IL223319A (en) 2016-04-21
KR20160081986A (ko) 2016-07-08
EP3079154B1 (en) 2018-06-06
PL3079153T3 (pl) 2018-12-31
KR20190116541A (ko) 2019-10-14
JP7319441B2 (ja) 2023-08-01
ES2683647T3 (es) 2018-09-27
US20190214035A1 (en) 2019-07-11
CA2976490A1 (en) 2012-01-05
SG10202005270YA (en) 2020-07-29
CN105261371B (zh) 2019-12-03
CA2928180C (en) 2017-03-28
CA3160488C (en) 2023-09-05
MY176188A (en) 2020-07-24
EP3079153A1 (en) 2016-10-12
CA3124114C (en) 2022-07-05
HUE038985T2 (hu) 2018-12-28
JP2016186652A (ja) 2016-10-27
JP2023134779A (ja) 2023-09-27
JP6178236B2 (ja) 2017-08-09
CN105261370A (zh) 2016-01-20
CA2958360C (en) 2017-11-14
JP2021192121A (ja) 2021-12-16
KR102388001B1 (ko) 2022-04-19
KR102296955B1 (ko) 2021-09-01
CA3124114A1 (en) 2012-01-05
SG186209A1 (en) 2013-01-30
RU2707716C1 (ru) 2019-11-28
US20160093312A1 (en) 2016-03-31
AU2011273680A1 (en) 2012-12-20
JP2021060601A (ja) 2021-04-15
US9396736B2 (en) 2016-07-19
CA2958350A1 (en) 2012-01-05
RU2015117332A (ru) 2016-11-27
KR102079000B1 (ko) 2020-02-19
US20230282222A1 (en) 2023-09-07
EP2589046A1 (en) 2013-05-08
EP3971893A1 (en) 2022-03-23
RU2692416C2 (ru) 2019-06-24
JP6679433B2 (ja) 2020-04-15
CA2937672C (en) 2017-05-02

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