MC Technical Details of Lossy Audio Compression Formats Audio compression Algorithm Sample Rate Bit rate Latency format AAC MDCT,Hybrid Subband 8 kHz to 192 kHz301 8 to 529 kbit/s(stereo) 20-405ms37 (AAC-HE) AC3 MDCT 32,44.1,48kHz 32 to 640 kbit/s 40.6ms 4.75,5.15,5.90,6.70,7.40,7.95, AMR ACELP 8kHz 10.20,12.20kbit/s 25ms GSM-HR VSELP 8 kHz 5.6 kbit/s 25ms GSM-FR RPE-LTP 8 kHz 13 kbit/s 20-30ms GSM-EFR ACELP 8kHz 12.2 kbit/s 20-30ms HVXC Speech 8 kHz 2 or 4 kbit/s 36ms 8.16.24.32.40.48.56,64.80.96. MP3(MPEG-1,2,2.5 MDCT,Hybrid Subband 8,11.025,12.16.22.05,24. 112,128.144,160,192,224,256 >100ms Audio Layer Ill) 32.441,48kHz 320 kbit/s Musepack Subband 32,37.8.44.1,48kHz 3 to 1300 kbit/s Vorbis(Ogg) MDCT 1 Hz to 200 kHz variable >100ms Windows Media Audio MDCT 8,11.025,16,22.05,32,44.1, 4 to 768kbit/s >100ms Pro 48.88.2.96kHz http://en.wikipedia.org/wiki/Comparison_of_audio_codecs (ynh,cxh @ustc.edu.cn{ynh,cxh}@ustc.edu.cn Technical Details of Lossy Audio Compression Formats http://en.wikipedia.org/wiki/Comparison_of_audio_codecs