Wave file compression codecs

From AudioLexic

This is a reference to compare the audio quality and compression bitrates of the different wave compression codecs available for ".wav" files using the audio compression manager including PCM, GSM, ADPCM, CELP, SBC, TrueSpeech and MPEG Layer-3.

[edit] Audio Compression Manager

Note: The Audio Compression Manager (ACM) is used for recording to .wav (wave) files.

The audio file compression formats listed on this page are low bitrate speech formats. Higher bitrate music and broadcast voice formats are not listed.

You can listen to samples of each audio format by clicking on the "Sample" link.

Format	Bitrate	1 Min =	Sample File
11,025Hz 16bit PCM	176.4kbs	1292k	11k16bitpcm.wav
8000Hz 16bit PCM	128kbs	937.5k	8k16bitpcm.wav
11,025Hz 8bit PCM	88.2kbs	646k	11k8bitpcm.wav
11,025Hz u-Law	88.2kbs	646k	11kulaw.wav
8,000Hz 8bit PCM	64kbs	468.8k	8k8bitpcm.wav
8,000Hz u-Law	64kbs	468.8k	8kulaw.wav
11,025Hz 4bit ADPCM	44.1kbs	323k	11kadpcm.wav
8000Hz 4bit ADPCM	32kbs	234.4k	8kadpcm.wav
11,025Hz GSM6.10	18kbs	131.8k	11kgsm.wav
8000Hz Mp3 16k	16kbs	117k	8kmp316.wav
8,000Hz GSM6.10	13kbs	102.5k	8kgsm.wav
8000Hz Lernout & Hauspie SBC 12k	12.0kbs	87.9k	8ksbc12.wav
8,000Hz DSP Group Truespeech	9kbs	65.9k	8ktruespeech.wav
8000Hz Mp3 8k	8kbs	60k	8kmp38.wav
8,000Hz Lernout & Hauspie CELP	4.8kbs	35k	8kcelp.wav