On 2016-12-09 18:58, Dr. Mark Bugeja MD wrote: > neither will it preserve pitch information I noticed. :-( > > Ok.... if I were to carry on with sox, what syntax would I need to use > so that all the 61 files in a folder are matched up with the > corresponding ones to output files with the same name in a different > folder? > > The files are called by notes on a scale preceded by a number eg > 036-C.wav, 037-C#.wav, 038-D.wav, and so on. I therefore need to match > the 036-C.wav in the left folder with the 036-C.wav in the right > folder. Someone will need to give you a small program that can do that. I'm not going to, because the language I write my utilities in won't be on your system and you'd have to install and configure it, and understand what you were doing before you could move on and actually use it. But someone established elsewhere in the thread that VBS (I think it was) will run on your system. I know nothing about VBS but someone will tell you what to do. Jan Stary has - again - pointed you at some code that would work on a Linux system but not on Windows. In essence what it does is - makes a list of all the files in (eg a 'left files' folder), whose names end in "wav" - then one at a time, work through that list, and: - work out the full name of the corresponding 'right' file - work out the full name of the corresponding stereo file - issue a sox command with all three names in it As Jan pointed out, a simple loop like this isn't a terribly good idea; it's better if there are some sanity checks in it as well - making sure that the derived 'right' file actually exists before you try to use it, make sure that the result file doesn't exist, stop if the sox command fails... If it were my code I would probably also check that the left & right files had the exact same size before they were used. -- Jeremy Nicoll - my opinions are my own ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today.http://sdm.link/xeonphi _______________________________________________ Sox-users mailing list Sox-users@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/sox-users