Hi Sam
I did the same thing on a different computer, but this time, I worked with a wav file instead of an mp3 one. Here is what I did:
1) On VideoPad, I imported my wav file:
http://technosoftgratis.okidoki.com.co/archivos/original.wav
2) Then I hit play on the "Clip Preview" window. At this point I could hear the noise.
3) Then I clicked on the imported wav file and click on: "Save Audio Clip as New File".
4) I opened the file and could hear the noise.
Thanks to a post on another forum, I figured out that you can see if two files are identical in Audacity:
1) Open Audacity
2) Import both wav files
3) Select the first file and do: Effect > Invert
4) Select both files and do: Tracks > Mix and Render
If both files are equal, then you should get an empty track. In my case, I got that noise, that I was hearing, while pushing the pedals.
Here the isolated noise that the software generates:
http://technosoftgratis.okidoki.com.co/archivos/noise.wav
Up-to the 6 second, you will hear it.
The possible cause is that my original wav file has this settings:
Bit rate : 1 411.2 Kbps
Sampling rate : 44.1 KHz
But the software change it by:
Bit rate : 1 536 Kbps
Sampling rate : 48.0 KHz
Is there any way of telling VideoPad not to change the original audio track? Or at least not trying to increase its sampling and bit rate?
Best regards
Josef