Forum: Ruby Reading and writing narray/sound data to file

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515d99da5168da6627a63735bae09357?d=identicon&s=25 Jon Hope (jonmidhir)
on 2009-02-17 02:57
Hi,

I was wondering if anyone could help.

I'm writing a program that analyses and processes audio in Ruby, using
the audio/sndfile library and narray. Currently I'm analysing a file and
storing the analysis data, an Audio::Sound class, directly into a file
like so:

    sf = Audio::Soundfile.open(self.full_filename)
    an_file = sf.readf_float(sf.frames)
    File.open(self.full_filename + ".anl","w") do |out|
      out << an_file
    end

So now I have the data in this file stored directly as it is stored in
the an_file NArray.

My problem is that I want to crack open this file and load it directly
into a an Audio::Sound NArray. File.read and IO.read seem to load the
data as one giant string, even if I've previously declared that the
variable i'm loading it into is an Audio::Sound. Is there no way to
simply dump the data as-is?

Thanks
515d99da5168da6627a63735bae09357?d=identicon&s=25 Jon Hope (jonmidhir)
on 2009-02-17 04:13
Having been able to declutter my brain I'm guessing I maybe should use
the Marshal module to serialize the data before saving, then use Marshal
to load it in situ?
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