From: anothy@cosym.net
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Line-In
Date: Tue, 26 Feb 2002 10:27:09 -0500 [thread overview]
Message-ID: <20020226152718.CFE7C19980@mail.cse.psu.edu> (raw)
from audio(3):
Audio data is a sequence of stereo samples, left sample first.
Each sample is a 16 bit little-endian two's complement
integer; the default sampling rate is 44.1 kHz.
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.
// 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'.
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.
ア
next reply other threads:[~2002-02-26 15:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-26 15:27 anothy [this message]
2002-02-27 10:06 ` Don
-- strict thread matches above, loose matches on Subject: below --
2002-02-28 17:09 anothy
2002-02-26 16:35 Russ Cox
2002-02-26 10:15 Don
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