jamesjyu has asked for the wisdom of the Perl Monks concerning the following question:

I am trying to use backticks to capture the output from sox: 
$out = `sox bla.wav -e stat`;
print $out;

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however, nothing gets assigned to $out. Is there something different about how sox returns stat info? I see the output printed to the screen, even when using backticks...

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Re: Capturing stats from sox
by diotalevi (Canon) on Jul 28, 2004 at 20:39 UTC

    Oh! Here I thought you were asking about Sarbanes/Oxley, the happening thing in business these days.

    The output is probably going to STDERR instead of STDOUT which is captured. Try these two ideas.

    # Redirect output from STDERR to STDOUT
$out = `sox ... 2>&1`

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    {
    # Temporarily alias STDERR to STDOUT.
    local *STDERR = *STDOUT;
    $out = `sox blah.wav -e stat`;
}
print $out;

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      Oh! Here I thought you were asking about Sarbanes/Oxley, the happening thing in business these days.

      This is horribly unrelated, but I was ready to talk about using LWP to download baseball statistics.

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      great! thanks!
[reply]

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