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Smooth the waveform
Old 20th December 2010
  #1
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Smile Smooth the waveform

Hi guys,

I'm looking for a way to "smooth" a part of the waveform of an audio file. The following picture shows the waveform before and after the process.

Thanks you in advance,

Smooth the waveform-capture-d-ecran-2010-12-19-17.33.51.png
Old 21st December 2010
  #2
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Alexey Lukin's Avatar
 

Try a waveform interpolator from RX ► Declick&Decrackle ► Interpolate.
Old 21st December 2010
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scottwilson's Avatar
waveform smoother = low pass filter
Old 21st December 2010
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api2500's Avatar
What does THAT sound like?
Old 21st December 2010
  #5
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Quote:
Originally Posted by Alexey Lukin View Post
Try a waveform interpolator from RX ► Declick&Decrackle ► Interpolate.
I'm not sure that it will work because it is not really a pop or a click... But I will download the demo and try. RX seems very interesting by the way.

Quote:
Originally Posted by scottwilson View Post
waveform smoother = low pass filter
Yes but not here I think because if I add a LPF on the whole sample then attack will disappear...

I tried to edit the points of the waveform but it is a nightmare...
Old 21st December 2010
  #6
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Quote:
Originally Posted by FredAntonCorvest View Post
Yes but not here I think because if I add a LPF on the whole sample then attack will disappear...

True... What is this from? I looks like 360 degrees of a sine wave of one freq butted directly to one of another frequency.

If you have the equivalent of audiosuite (what program is that?), just run the LPF on a highlighted section... it'll round off that corner easily.
Old 21st December 2010
  #7
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Don't use the zero crossing point for edit, but top of each wave.
Old 21st December 2010
  #8
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Quote:
Originally Posted by scottwilson View Post
True... What is this from? I looks like 360 degrees of a sine wave of one freq butted directly to one of another frequency.

If you have the equivalent of audiosuite (what program is that?), just run the LPF on a highlighted section... it'll round off that corner easily.
Yes exactly, a 360° sin at hi freq butted directly to a low freq one heh

Here you have the sound high freq to low freq.aif

I've tried the solution with lpf but I did not got good result... However I've tried "Audacity" and there is a process called "Repair"... So I selected the part of the waveform that I wanted to smooth, executed the process and it proposed me something interesting :-)

Here you have the result:

Before process: Smooth the waveform-capture-d-ecran-2010-12-21-20.41.35.png

After process: Smooth the waveform-capture-d-ecran-2010-12-21-20.41.56.png

For me it looks like a workaround... Maybe someone of you could propose a better solution ??
Old 22nd December 2010
  #9
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Quote:
Originally Posted by Alexey Lukin View Post
Try a waveform interpolator from RX ► Declick&Decrackle ► Interpolate.
I tried Rx/interpolator and it worked as great as audacity repair. I've to admit that rx and audacity solutions are the best for the moment. heh

Thanks everybody !
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