Concatenating Audio Files in with Perl on a Mac

[Gary Morrison]

I need to create a lot of fairly-short audio files from the
concatenation of a lot of even shorter audio files. I'd like to control
that from a Perl script. The audio files would presumably be AIFF or
WAV files, preferable AIFF.

Do any of you know of Perl commands to accomplish this? Specifically,
* A call to create and open a new, empty AIFF or WAV file,
* A call to append onto the end of that open audio file the audio
content of an existing non-empty audio file, and
* A call to close the created concatenation file.

Thanks for the ideas!

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[The Spanish Inquisition]

Gary Morrison wrote:

I need to create a lot of fairly-short audio files from the
concatenation of a lot of even shorter audio files. I'd like to control
that from a Perl script. The audio files would presumably be AIFF or
WAV files, preferable AIFF.

Do any of you know of Perl commands to accomplish this? Specifically,
* A call to create and open a new, empty AIFF or WAV file,
* A call to append onto the end of that open audio file the audio
content of an existing non-empty audio file, and
* A call to close the created concatenation file.

Thanks for the ideas!

Try this: http://search.cpan.org/~taiy/Audio-SoundFile-0.15/

Ximinez
--
Our three weapons are fear, surprise, and ruthless efficiency...
and an almost fanatical devotion to the Pope....
http://www.ai.mit.edu/people/paulfitz/spanish/t1.html

[Gary Morrison]

Chel van Gennip wrote:

I hope you are using OS X and have some knowledge of the Unix system, as
it is convenient for scripting.
"Yes" to both. I've done a bit of Perl scripting on my Sun workstation
at work.
Make a script that, using SOX strips
headers and if needed convert to the same samplerate, samplewidth, etc.,
and outputs raw audio data to stdout. Input this raw datastream in SOX
through stdin to generate a WAF or AIIF file. http://sox.sourceforge.net/

Ya know, thinking back a long time ago (I think it was around the time
when MacOS 7 first came out!), I wrote some code code to dork around
with AIFF files. I may be able to resurrect and adapt that code for
doing the actual opening and writing of the AIFF files themselves. If I
can find it, that is!

--

(Preferably reply to the newsgroup, please. If you reply by Email, I
will sincerely try to receive your message, but it will probably get
buried in spam.)

[The Spanish Inquisition]

Gary Morrison wrote:

Chel van Gennip wrote:

I hope you are using OS X and have some knowledge of the Unix system, as
it is convenient for scripting.

"Yes" to both. I've done a bit of Perl scripting on my Sun workstation
at work.

Make a script that, using SOX strips
headers and if needed convert to the same samplerate, samplewidth, etc.,
and outputs raw audio data to stdout. Input this raw datastream in SOX
through stdin to generate a WAF or AIIF file. http://sox.sourceforge.net/

Ya know, thinking back a long time ago (I think it was around the time
when MacOS 7 first came out!), I wrote some code code to dork around
with AIFF files. I may be able to resurrect and adapt that code for
doing the actual opening and writing of the AIFF files themselves. If I
can find it, that is!

Yeah, the sox stuff seems to be able to do almost anything. The syntax
learning curve is a bit steep, though, as I recall from previous
experiments.

Ximinez
--
Our three weapons are fear, surprise, and ruthless efficiency...
and an almost fanatical devotion to the Pope....
http://www.ai.mit.edu/people/paulfitz/spanish/t1.html

[Gary Morrison]

The Spanish Inquisition wrote:

Yeah, the sox stuff seems to be able to do almost anything. The syntax
learning curve is a bit steep, though, as I recall from previous
experiments.

I'll start with that. Thanks.

--

(Preferably reply to the newsgroup, please. If you reply by Email, I
will sincerely try to receive your message, but it will probably get
buried in spam.)