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Re: Exporting Sound

  • To: mathgroup at smc.vnet.net
  • Subject: [mg83843] Re: Exporting Sound
  • From: dflatin at rcn.com
  • Date: Sun, 2 Dec 2007 04:09:10 -0500 (EST)
  • References: <fireum$s1h$1@smc.vnet.net>

On Dec 1, 6:01 am, Helen Read <h... at together.net> wrote:
> Has anyone succeeded in exporting sounds (as .wav) from v.6? The
> documentation indicates that this is possible, but I could not find a
> single example of how to actually do it.
>
> As a simple example (I'm actually working with far more complicated
> sounds), try this.
>
> ding = SoundNote["F", 1, "Tinklebell"];
>
> Sound[ding] brings up a GUI for playing the ding sound.
>
> EmitSound[Sound[ding]] can be used to play the sound programatically.
>
> But what is it that I'm supposed to export?
>
> Export["ding.wav",ding] does not work,
>
> nor does Export["ding.wav",Sound[ding]]
>
> nor does Export["ding.wav",EmitSound[Sound[ding]]]
> (I admit this last was a longshot, but I tried everything I could think of.)
>
> Depending on whether I try to export the SoundNote itself, or the Sound,
> or the EmitSound, I get error messages like:
>
> First::normal: Nonatomic expression expected at position 1 in First[None].
>
> Or:
>
> Export::nodta: "Null contains no data that can be exported to the WAV
> format."
>
> Or:
>
> Export::nodta: <<1>> contains no data that can be exported to the
> WAV format."
>
> So again, what is that I'm supposed to export?

For what it is worth, I successfully tried the example in the help
exporting to an AIFF file format:

s = Play[ Sin[4 (2 + Sin[1500 t]) t], {t, 0, 1}]
Export["sound.aif", s]

and

Export["sound24.aif", s, "AudioEncoding" -> "Integer24"]

$Version
"6.0 for Mac OS X PowerPC (32-bit) (June 19, 2007)"

-- Dan


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