Re: [9fans] Line-In

[Don <north_@www.7f.no-ip.com>]

> i'm not familiar with the term "cdr" as an audio format, but i'm
> guessing you're refering to the audio format on a CD. that's PCM,
> and yes, it's the same format you read/write on /dev/audio.
> 
Right on. I got the term "cdr" from the 'sox' manpage.

> // I've tried using lame to convert P9 /dev/audio data to mp3...
> 
> one step at a time. can you get data from /dev/audio to start
> with? just try 'cat /dev/audio > /tmp/foo', yell into the mic some,
> and then kill the cat. the contents of /tmp/foo should be PCM
> audio, suitable for 'cat /tmp/foo > /dev/audio'.
> 
Of course. 

> assuming you're getting audio data, are you sure lame is working?
> i had issues with it producing valid but garbage mp3 files. for my
> experiences, take a look at http://9srv.net/mpeg/ - the summary
> is that i use BladeEnc quite succesfully. the single line to compile
> it, and a binary in case you have problems, are available there.
> ?
Apparently the problem was that LAME and sox were not working. Though, I
find it odd, since, every file made on Linux/BSD will translate fine with
LAME/sox on my FreeBSD machine. :| That is why I thought the problem was
my understanding of the audio file format. Every mp3 file produced on 
Plan 9 ended up as pure garbage, though, a valid mp3 file was generated. 
Once I tried bladeenc on plan9 everything turned out sweet as cake ;)
Thanks,
Don (north_)
http://www.7f.no-ip.com/