CN108281149A - 一种基于加Blackman窗的FIR滤波器的音频采样率转换方法及系统 - Google Patents
一种基于加Blackman窗的FIR滤波器的音频采样率转换方法及系统 Download PDFInfo
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- CN108281149A CN108281149A CN201711486136.8A CN201711486136A CN108281149A CN 108281149 A CN108281149 A CN 108281149A CN 201711486136 A CN201711486136 A CN 201711486136A CN 108281149 A CN108281149 A CN 108281149A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 24
- 238000005070 sampling Methods 0.000 claims abstract description 40
- 239000011159 matrix material Substances 0.000 claims abstract description 8
- 230000006870 function Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001228 spectrum Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
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Classifications
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- 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
- 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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- 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
- 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
- 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
- G10L25/45—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of analysis window
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/04—Recursive filters
- H03H17/0416—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
- H03H17/0427—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies
- H03H17/0438—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer
- H03H17/0444—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer where the output-delivery frequency is higher than the input sampling frequency, i.e. interpolation
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Stereophonic System (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
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CN201711486136.8A CN108281149B (zh) | 2017-12-29 | 2017-12-29 | 一种基于加Blackman窗的FIR滤波器的音频采样率转换方法及系统 |
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CN201711486136.8A CN108281149B (zh) | 2017-12-29 | 2017-12-29 | 一种基于加Blackman窗的FIR滤波器的音频采样率转换方法及系统 |
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CN108281149A true CN108281149A (zh) | 2018-07-13 |
CN108281149B CN108281149B (zh) | 2021-08-27 |
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Cited By (1)
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---|---|---|---|---|
CN110996057A (zh) * | 2019-12-02 | 2020-04-10 | 腾讯云计算(北京)有限责任公司 | 媒体数据处理方法、装置、计算机设备和存储介质 |
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CN104952452A (zh) * | 2015-04-27 | 2015-09-30 | 无锡天脉聚源传媒科技有限公司 | 一种pcm音频采样率的转换方法及装置 |
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2017
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US9009032B2 (en) * | 2006-11-09 | 2015-04-14 | Broadcom Corporation | Method and system for performing sample rate conversion |
CN101394161A (zh) * | 2007-09-20 | 2009-03-25 | 株式会社东芝 | 采样率转换器 |
CN101855440A (zh) * | 2007-11-07 | 2010-10-06 | 飞思卡尔半导体公司 | 汽车系统中的爆震信号检测 |
CN101843082A (zh) * | 2007-12-18 | 2010-09-22 | 坦德伯格电信公司 | 用于时钟漂移补偿的方法和系统 |
CN101320560A (zh) * | 2008-07-01 | 2008-12-10 | 上海大学 | 语音识别系统应用采样速率转化提高识别率的方法 |
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CN102025852A (zh) * | 2009-09-23 | 2011-04-20 | 宝利通公司 | 在近端对回传音频的检测和抑制 |
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CN104952452A (zh) * | 2015-04-27 | 2015-09-30 | 无锡天脉聚源传媒科技有限公司 | 一种pcm音频采样率的转换方法及装置 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110996057A (zh) * | 2019-12-02 | 2020-04-10 | 腾讯云计算(北京)有限责任公司 | 媒体数据处理方法、装置、计算机设备和存储介质 |
CN110996057B (zh) * | 2019-12-02 | 2021-11-16 | 腾讯云计算(北京)有限责任公司 | 媒体数据处理方法、装置、计算机设备和存储介质 |
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