ZAP mp3-player for interviews and music playback
Last Friday, I was scheduled to do an interview with the Swedish police regarding cybercrime and digital forensics. In order to perform well, I figured I needed some kind of recording device. And instead of buying expensive equipment for just that purpose, I bought a ZAP - An MP3-player with music-playback functionallity (doh!) and recording functionallity et cetera.
When I'd recorded an hour long wave-file, I synced the file with my desktop (which btw was flawlessly detected by kubuntu as a mass storage device. Beatiful), to realise that I could fast forward in the wave-file. Lame wasn't able to convert it to wave, and xmms wasn't even able to play the file.
This is how I converted the odd wave-file format to ordinary wave, and then to mp3. Nothing special, but I'll probably have to do it again some time.
neewt@twosome:~/Desktop$ file rec01.wav
rec01.wav: RIFF (little-endian) data, WAVE audio, IMA ADPCM, mono 8000 Hz
neewt@twosome:~/Desktop$ sox rec01.wav -s test.wav
neewt@twosome:~/Desktop$ lame test.wav Intervju-Rikspolisstyrelsen.mp3
LAME version 3.96.1 (http://lame.sourceforge.net/)
CPU features: MMX (ASM used), 3DNow! (ASM used), SSE
Using polyphase lowpass filter, transition band: 3000 Hz - 3097 Hz
Encoding test.wav to Intervju-Rikspolisstyrelsen.mp3
Encoding as 8 kHz 8 kbps single-ch MPEG-2.5 Layer III (16x) qval=3
Frame : CPU time/estim : REAL time/estim : play/CPU : ETA
90809/90811 (100%): 1:15/ 1:15: 1:21/ 1:21: 86.991x: 0:00
average: 8.0 kbpsReplayGain: +0.2dB
neewt@twosome:~/Desktop$
The file now plays correctly in both xmms, and in the wonderful mediaplayer amarok. The wave-file too, if I would like that.