Removing silence from a sound file


    Mar 17 2007 | 6:51 pm
    I am using recordings of speech as an input to a pitch tracker. I want to remove the pauses between words and sentences. Is there something in MSP that can do this?
    Cheers Gary Lee Nelson Oberlin College www.timara.oberlin.edu/GaryLeeNelson

    • Mar 17 2007 | 7:59 pm
      If you're playing recorded speech into the pitch tracker, can you not just remove the pauses in audacity before using them in your patch. or are you recording live then replaying intot the pitch tracker?
      Will
    • Mar 17 2007 | 8:32 pm
      With some cleverness using index~ perhaps? You could set a duration range cutoff of zero signal levels and remove them where they occur. Would take a bit of fiddling but I imagine it's doable.
      Also, waveform~ (but you probably knew that)
      -CJ
    • Mar 18 2007 | 2:07 am
      I have prerecorded speech samples that I am loading into a buffer~. Sometimes I want the rhythm of the speech but when I time stretch, the pauses are too long. What would work for me is to batch process all of my files to remove the pauses. Then I would choose the pause-less samples when time stretching is beyond a specified time threshold.
      I am using play~ to change playback speed then gizmo~ to transpose back to the original pitch level.
      On 3/17/07 3:59 PM, "WillChadwick" wrote:
      > > If you're playing recorded speech into the pitch tracker, can you not just > remove the pauses in audacity before using them in your patch. or are you > recording live then replaying intot the pitch tracker? > > Will
      Cheers Gary Lee Nelson Oberlin College www.timara.oberlin.edu/GaryLeeNelson
    • Mar 18 2007 | 2:44 am
      in protools thats a one-click job! :)
      i was also already thinking of creatin a tool for this with max.
    • Mar 18 2007 | 2:48 am
      i guess if you have a batch of sound samples its gonna take too long to individually edit them in some audio process software. if you play the sound files into the [record~] object with append mode turned on. then use a noise gate on the sound output of the soundfile your recording to trigger the [record~] on and off. then set up loads of em and mass process them that way!? this would edit out the silences in mass batches.
      Will
    • Mar 18 2007 | 2:55 am
      What I want to do is delete the silence and run the remaining sounds together without pause.
      This...phrase...becomes......this Thisphrasebecomesthis
      On 3/17/07 3:59 PM, "WillChadwick" wrote:
      > > If you're playing recorded speech into the pitch tracker, can you not just > remove the pauses in audacity before using them in your patch. or are you > recording live then replaying intot the pitch tracker? > > Will
      Cheers Gary Lee Nelson Oberlin College www.timara.oberlin.edu/GaryLeeNelson
    • Mar 18 2007 | 7:50 am
    • Mar 18 2007 | 8:40 pm
      We have a winner! Thanks Will. Your reminder about the append message to record~ was just what I need. I was able to tune Tap.gate~ (thanks to Tim Place) to smoothly remove the silences. Now I can write a batch processor.
      On 3/17/07 10:48 PM, "WillChadwick" wrote:
      > > i guess if you have a batch of sound samples its gonna take too long to > individually edit them in some audio process software. > if you play the sound files into the [record~] object with append mode turned > on. then use a noise gate on the sound output of the soundfile your recording > to trigger the [record~] on and off. > then set up loads of em and mass process them that way!? this would edit out > the silences in mass batches. > > Will
      Cheers Gary Lee Nelson Oberlin College www.timara.oberlin.edu/GaryLeeNelson