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Reading portions of a wave file

Greeting list readers,

I noticed that the wave read object has an *implementation dependent*
setpos(pos) method. When reading audio files, it is useful to be able
to set the position to a specific sample. While setpos(pos) may do this
on certain implementations (haven't tried it), it would not be a
reliable way to do it in a platform independent manner.

Is anyone familiar with an alternative wave package that would let one
arbitrarily access portions of a wave file? Clearly, one can read in up
to the desired point, but when the file is very large, this becomes an
inappropriate way of doing things.

Thanks,
Marie

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Aug 16 '05 #1
1 1913
On Tue, 16 Aug 2005 02:33:36 GMT, Nadie <Na***@san.rr.com> wrote:
Greeting list readers,

I noticed that the wave read object has an *implementation dependent*
setpos(pos) method. When reading audio files, it is useful to be able
to set the position to a specific sample. While setpos(pos) may do this
on certain implementations (haven't tried it), it would not be a
reliable way to do it in a platform independent manner. How do you know this? I don't know either way, but superficially it
looks like the wave.py author tried to do "the right thing."
Is anyone familiar with an alternative wave package that would let one
arbitrarily access portions of a wave file? Clearly, one can read in up
to the desired point, but when the file is very large, this becomes an
inappropriate way of doing things.

Why don't you at least try setpos, and fix it if there's a problem?
Or report on the problem you _actually_ encounter, which could be useful.
That much can't be much harder than looking for an alternative, and may
inspire others to help make/find a workable solution for you.

Regards,
Bengt Richter
Aug 16 '05 #2

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