Excellent! Do you mind finding a spot up on the wiki for this?
-MC

On Mon, Jul 23, 2012 at 4:01 PM, Alexandre Fiori <fiorix@gmail.com> wrote:

Amazing. This is exactly what I was looking for, and couldn't figure out how to do.

Thank you!

On 2012-07-23, at 6:55 PM, Michael Collins <msc@freeswitch.org> wrote:

Well, if you have soxi installed (Linux, of course) then you could always use a system call to grab the file length. For kicks I whipped up a proof of concept dial plan to demonstrate how it could work. If anyone finds it useful please let me know and I'll wikify it.
-MC

<extension name="soxi sound file length">
    <condition field="destination_number" expression="^(9904)$">
      <action application="answer"/>
      <action application="sleep" data="500"/>
      <action application="set"
              data="sound_file=${sounds_dir}/music/8000/danza-espanola-op-37-h-142-xii-arabesca.wav"/>
      <action application="set"
              data="file_length=${system soxi -D ${sound_file} | tr -d '\\n' }"/>
      <action application="log" data="INFO Sound file length is '${file_length}'"/>
      <action application="set" data="file_length=${expr(ceil(${file_length}))}"/>
      <action application="log" data="INFO Sound file length is '${file_length}'"/>
      <action application="say" data="en number pronounced ${file_length}"/>
      <action application="playback" data="time/seconds.wav"/>
    </condition>
</extension>