A bit OT: conversion mp3 to wav

[vdemart@supereva.it]

In my deb testing installation until recently I had been using a widely known procedure to convert mp3 files into wav to roast CDs.
in a nutshell
<snip>
for i in *.mp3; do mpg123 -w `basename $i .mp3`.wav $i; done
<snip>
Now.... the same procedure is painfully complaining about an "illegal instruction" and produces a zero-byte wav output

E.g., If I issue the basic command

mpg123 -w weare.wav weare.mp3


High Performance MPEG 1.0/2.0/2.5 Audio Player for Layer 1, 2 and 3.

Version 0.59r (1999/Jun/15). Written and copyrights by Michael Hipp.

Uses code from various people. See 'README' for more!

THIS SOFTWARE COMES WITH ABSOLUTELY NO WARRANTY! USE AT YOUR OWN RISK!

Title : We Are The World Artist: Myself, Maria, Ric, etc.

Album : Victor & Friends - For Guat Year :

Comment: Genre : Classical



Playing MPEG stream from wearetheworld.mp3 ...

Junk at the beginning 49443303

MPEG 1.0 layer III, 96 kbit/s, 44100 Hz joint-stereo

Illegal instruction


Why is that? is anything changed recently? Or there something wrong I cannot see?

Vittorio


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[Vittorio]

Sebastian Kapfer [debian-user] <05/07/03 18:59 +0200>:

> On Sat, 05 Jul 2003 13:50:08 +0200, vdemar wrote:
>

> > E.g., If I issue the basic command
> >
> > mpg123 -w weare.wav weare.mp3

> [...]

> > Illegal instruction

>
> Did this break with a recent update? It sounds like mpg123 uses an
> instruction that your CPU (which?) doesn't support. Does normal playback
> work?

This break appeared after an update (I don't know if recent).

The CPU is a Pentium III.

I don't know what you mean by "normal playback" but xmms is able to reproduce both mp3 and wav files if I guess correctly.

Vittorio
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[Rob Weir]

On Mon, Jul 07, 2003 at 01:23:34PM +0000, Vittorio wrote:

> Sebastian Kapfer [debian-user] <05/07/03 18:59 +0200>:

> > On Sat, 05 Jul 2003 13:50:08 +0200, vdemar wrote:
> >

> > > E.g., If I issue the basic command
> > >
> > > mpg123 -w weare.wav weare.mp3

> > [...]

> > > Illegal instruction

> >
> > Did this break with a recent update? It sounds like mpg123 uses an
> > instruction that your CPU (which?) doesn't support. Does normal playback
> > work?

>
> This break appeared after an update (I don't know if recent).
>
> The CPU is a Pentium III.
>
> I don't know what you mean by "normal playback" but xmms is able to reproduce both mp3 and wav files if I guess correctly.

I think he means 'does mpg123 play mp3 files in general, ie does "mpg123
file.mp3" work?'.

That said, assuming you're using the Debian packages of mpg123 (which
are built for i386), I'd look for disk corruption. 'debsums' is useful
for checking this. If you built it yourself from source, then try
again; you probably used optimisations that your CPU doesn't actually
support.

--
Rob Weir <rweir@ertius.org> | [email]mlspam@ertius.org[/email] | Do I look like I want aCC?
Words of the day: armed overthrow PGP undercover ASPIC argus AIEWS White House

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