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Re: Sound installed but now what???
- From: "Wes Bauske" <wsb paralleldata com>
- To: axp-list redhat com
- Subject: Re: Sound installed but now what???
- Date: Thu, 12 Nov 1998 04:31:32 +0000
Stephen Williams wrote:
>
> In message <199811112314.SAA04315@ra.lexis-nexis.com>, Larry Snyder writes:
> > What happens if you: cat some-file.au > /dev/audio?
> > That would eliminate sox....
>
> brtaylor@inreach.com said:
> > Nothing like a simple solution!
>
> Yep.
>
> brtaylor@inreach.com said:
> > Looks like the Alpha is big endian.
>
> Nope. I quote from the "Alpha Architecture Reference manual":
>
> "A longword is specified by its address A, the address of
> the byte containing bit 0."
>
> I find that the i386 to alpha transition is easier for the image processing
> guy (like me) then the i386 to SPARC switch:-)
Alphas and Intels are little endian.
The simple solution was to elimate sox, which apparently has
some Alpha related bugs in it.
Look at /usr/lib/magic for info on file types:
Audio files
# Sun/NeXT audio data
0 string .snd Sun/NeXT audio data:
>12 belong 1 8-bit ISDN u-law,
>12 belong 2 8-bit linear PCM [REF-PCM],
>12 belong 3 16-bit linear PCM,
>12 belong 4 24-bit linear PCM,
>12 belong 5 32-bit linear PCM,
>12 belong 6 32-bit IEEE floating point,
>12 belong 7 64-bit IEEE floating point,
>12 belong 23 8-bit ISDN u-law compressed (CCITT G.721
ADPCM voice data encoding),
>12 belong 24 compressed (8-bit G.722 ADPCM)
>12 belong 25 compressed (3-bit G.723 ADPCM),
>12 belong 26 compressed (5-bit G.723 ADPCM),
>12 belong 27 8-bit A-law,
>20 belong 1 mono,
>20 belong 2 stereo,
>20 belong 4 quad,
>16 belong >0 %d Hz
# DEC systems (e.g. DECstation 5000) use a variant of the Sun/NeXT format
# that uses little-endian encoding and has a different magic number
0 lelong 0x0064732E DEC audio data:
>12 lelong 1 8-bit ISDN u-law,
>12 lelong 2 8-bit linear PCM [REF-PCM],
>12 lelong 3 16-bit linear PCM,
>12 lelong 4 24-bit linear PCM,
>12 lelong 5 32-bit linear PCM,
>12 lelong 6 32-bit IEEE floating point,
>12 lelong 7 64-bit IEEE floating point,
>12 lelong 23 8-bit ISDN u-law compressed (CCITT G.721
ADPCM voice data encoding),
>20 lelong 1 mono,
>20 lelong 2 stereo,
>20 lelong 4 quad,
>16 lelong >0 %d Hz
Wes
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