Batch processing

[BobAchgill]

I need to modify 1400 hundred files all in the same kind of way. Is there a best way to do this with Audacity so that my human intervention is minimized?

All the files are about 1 to 2 seconds in length. I need to remove noise and compress the high/low of the volume using the same parameters on all files. Then I need to trim silence parts on both front and end and lastly add back in 0.75 sec of silence on the front. This needs to be done on all 1400 mp3 files.

If this works then I need to do it all again 7000 other sets of 1400 files... hence I am trying to minimize human intervention!!

Thanks!

Bob

[steve]

Unfortunately the batch features in Audacity are not yet sufficiently comprehensive to do this.

[jan.kolar]

And what is chain proccessing about?

I read in manual

CleanSpeech Mode: A radical customisation of Audacity developed by Lynn Allan which is used for cleaning up large numbers of voice recordings, using Normalize, Truncate Silence and Noise removal steps.

Version 1.3.5 Beta.
File > Edit Chains ,
File > Apply Chains , Apply to files...



It has normalize (only 'maximum amplitude' though I would recommend unaviable RMS, depending on application)
It has noise removal (I fear, where it takes the noise profile from ?, Ok if it takes it just from the beging, there would be a workaround)
It has truncate silens
I did not find Insert silence but it should be easy to do by Nyquist, I hope
It has ExportWav and ExportMp3 for the last step

(RMS normalization can be done by Nyquist, too)

I do not reccommend MP3 (though, depends on aplication)