Ever since getting the Sandisk Sansa e280 (yes, so much better than the iPod Nano, if you must know), I’ve been interested in the Voice recording feature. I fiddled with it today, to give it a bit of a test, as I plan on conducting audio interviews.
Once recorded, it outputs WAV files. This is easily accessible in Linux, in the RECORD folder. So I played around with converting the original WAV file into an OGG and MP3. Quick findings:
- WAV: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, mono 16000 Hz size at 1020K
- OGG: Ogg data, Vorbis audio, mono, 16000 Hz, ~48000 bps, created by: Xiph.Org libVorbis I, sized at 148K, converted via oggenc 071203_01.wav -o 071203_01.ogg
- MP3: MPEG ADTS, layer III, v2, 24 kBits, 16 kHz, Monaural, sized at 104K, converted via lame 071203_01.wav
This was on a clip that was 32 seconds in length. The MP3 is smaller than the OGG, and there’s no noticeable sound difference between all the 3 formats. Is there something to make the OGGs generated by oggenc smaller? I’m happy if they just match the MP3 file sizes, to be honest.
Time to start podcasting? :)
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