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学以致用---博主简介:专注语音、视频数字信号处理方面的研究以及算法在手机平台上面的移植和优化。涉及语音/音频编解码,语音增强,语音识别,语音音质客观评估,VOIP语音引擎 Qos算法模块和声音变速不变调和变调不变速等功能实现。熟悉ARM 各个系列的CPU,用ARMv4,ARMv5,ARMv6 and Cortex Neon 汇编优化相关算法代码,争取perforamance 最优。目前主要Windows mobile and Android platform上做相关speech/audio算法以及应用开发, HEVC 编解码器PC 和手机上的开发与应用。(交流Email:liupin.2008@gmail.com)

http://wiki.hydrogenaudio.org/index.php?title=Lossless_comparison

 

Comparison Table

Features FLAC WavPack TAK Monkey's OptimFROG ALAC WMA
Encoding speed fast very fast very fast fast slow average average
Decoding speed very fast very fast very fast average average fast average
Compression* 58.70% 58.0% 57.0% 55.50% 54.70% 58.50% 56.30%
Flexibility** very good very good very good very good very good bad bad
 
Error handling yes yes yes no yes   yes
Seeking yes yes yes yes yes yes yes
Tagging Vorbis tags ID3/APE APEv2 (exp.) ID3/APE ID3/APE Quicktime ASF
Hardware support very good limited no limited no good limited
Software support very good good average good average bad good
Hybrid/lossy no yes no no yes no no
Replay Gain yes yes yes no yes sort of no
RIFF chunks yes yes   yes yes   no
Streaming yes yes yes no yes yes yes
Pipe support yes yes yes yes yes no yes
Open source yes yes no yes no yes (decoding) no
Multichannel yes yes no no no yes yes
High resolution yes yes yes yes yes yes yes
OS support All All Win/Linux Wine All Win/Mac/Linux Win/Mac Win/Mac

(table continued below)

Features Shorten LA TTA LPAC MPEG-4 ALS MPEG-4 SLS Real Lossless
Encoding speed very fast slow very fast average average slow slow
Decoding speed very fast slow fast fast fast slow fast
Compression* 63.50% 53.50% 57.10% 57.20% 57.10%  ? 57.0%
Flexibility** bad average bad bad very good bad bad
 
Error handling no no yes no yes yes  
Seeking yes yes yes slow yes yes yes
Tagging no ID3v1 ID3 no yes yes Proprietary
Hardware support limited no limited no no no no
Software support very good bad average average bad bad bad
Hybrid/lossy no no no no no yes no
Replay Gain no no yes no yes yes no
RIFF chunks yes yes no yes      
Streaming no   no no yes yes yes
Pipe support yes yes no       no
Open source yes no yes no yes yes no
Multichannel no no yes no yes yes no
High resolution no no yes yes yes yes no
OS support All Win/Linux All Win/Linux/Sol All All Win/Mac/Linux
posted on 2010-04-27 20:59  liupin  阅读(508)  评论(0)    收藏  举报

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