MX2018012490A - Codificador de audio para codificar una se?al de audio, metodo para codificar una se?al de audio y programa de computadora en consideracion de una region espectral del pico detectada en una banda de frecuencia superior. - Google Patents
Codificador de audio para codificar una se?al de audio, metodo para codificar una se?al de audio y programa de computadora en consideracion de una region espectral del pico detectada en una banda de frecuencia superior.Info
- Publication number
- MX2018012490A MX2018012490A MX2018012490A MX2018012490A MX2018012490A MX 2018012490 A MX2018012490 A MX 2018012490A MX 2018012490 A MX2018012490 A MX 2018012490A MX 2018012490 A MX2018012490 A MX 2018012490A MX 2018012490 A MX2018012490 A MX 2018012490A
- Authority
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- Mexico
- Prior art keywords
- frequency band
- encoding
- audio signal
- upper frequency
- spectral region
- Prior art date
Links
- 230000003595 spectral effect Effects 0.000 title abstract 5
- 230000005236 sound signal Effects 0.000 title abstract 4
- 238000004590 computer program Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000007493 shaping process Methods 0.000 abstract 4
Classifications
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- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
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- 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
- G10L19/0204—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 subband decomposition
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- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
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- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
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- G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
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- G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
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- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Un codificador de audio para codificar una señal de audio que tiene una banda de frecuencia más baja y una banda de frecuencia superior, comprende: a detector (802) para detectar una región espectral del pico en la banda de frecuencia superior de la señal de audio; a conformador (804) para conformar la banda de frecuencia más baja usando información de conformación para la banda más baja y para conformar la banda de frecuencia superior usando al menos una porción de la información de conformación para la banda más baja, donde el conformador (804) está configurado para atenuar adicionalmente valores espectrales en la región espectral del pico detectada en la banda de frecuencia superior; y a etapa de cuantificador y codificador (806) para cuantificar a banda de frecuencia más baja conformada y a banda de frecuencia superior conformada y para codificar por entropía valores espectrales cuantificados de la banda de frecuencia más baja conformada y la banda de frecuencia superior conformada.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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EP16164951 | 2016-04-12 | ||
PCT/EP2017/058238 WO2017178329A1 (en) | 2016-04-12 | 2017-04-06 | Audio encoder for encoding an audio signal, method for encoding an audio signal and computer program under consideration of a detected peak spectral region in an upper frequency band |
Publications (1)
Publication Number | Publication Date |
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MX2018012490A true MX2018012490A (es) | 2019-02-21 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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MX2018012490A MX2018012490A (es) | 2016-04-12 | 2017-04-06 | Codificador de audio para codificar una se?al de audio, metodo para codificar una se?al de audio y programa de computadora en consideracion de una region espectral del pico detectada en una banda de frecuencia superior. |
Country Status (19)
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US (3) | US10825461B2 (es) |
EP (3) | EP3443557B1 (es) |
JP (3) | JP6734394B2 (es) |
KR (1) | KR102299193B1 (es) |
CN (3) | CN109313908B (es) |
AR (1) | AR108124A1 (es) |
AU (1) | AU2017249291B2 (es) |
CA (1) | CA3019506C (es) |
ES (2) | ES2933287T3 (es) |
FI (1) | FI3696813T3 (es) |
MX (1) | MX2018012490A (es) |
MY (1) | MY190424A (es) |
PL (2) | PL3443557T3 (es) |
PT (2) | PT3443557T (es) |
RU (1) | RU2719008C1 (es) |
SG (1) | SG11201808684TA (es) |
TW (1) | TWI642053B (es) |
WO (1) | WO2017178329A1 (es) |
ZA (1) | ZA201806672B (es) |
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EP3671741A1 (en) * | 2018-12-21 | 2020-06-24 | FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. | Audio processor and method for generating a frequency-enhanced audio signal using pulse processing |
WO2020171034A1 (ja) * | 2019-02-20 | 2020-08-27 | ヤマハ株式会社 | 音信号生成方法、生成モデルの訓練方法、音信号生成システムおよびプログラム |
CN110047519B (zh) * | 2019-04-16 | 2021-08-24 | 广州大学 | 一种语音端点检测方法、装置及设备 |
WO2020253941A1 (en) * | 2019-06-17 | 2020-12-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder with a signal-dependent number and precision control, audio decoder, and related methods and computer programs |
CN113192523B (zh) | 2020-01-13 | 2024-07-16 | 华为技术有限公司 | 一种音频编解码方法和音频编解码设备 |
CN113539281A (zh) * | 2020-04-21 | 2021-10-22 | 华为技术有限公司 | 音频信号编码方法和装置 |
CN111613241B (zh) * | 2020-05-22 | 2023-03-24 | 厦门理工学院 | 一种高精度高稳定度的弦乐器基波频率检测方法 |
CN112397043B (zh) * | 2020-11-03 | 2021-11-16 | 北京中科深智科技有限公司 | 一种语音转化成歌曲的方法和*** |
CN112951251B (zh) * | 2021-05-13 | 2021-08-06 | 北京百瑞互联技术有限公司 | 一种lc3音频混合方法、装置及存储介质 |
CN118314908A (zh) * | 2023-01-06 | 2024-07-09 | 华为技术有限公司 | 场景音频解码方法及电子设备 |
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