Hello everyone. I am making a script that is supposed to mix together 2 separate versions of the same files. So far so good. Now it has to be able to do this in a batch of all files in one folder, to an output file, a mixed file. The idea is to have samples called *sweep1.wav be combined with the files called *sweep2.wav. So far my script is combining *only* one specific *"sweep1" file*, the last in my list *(which is number 3)*, with one the correct "sweep2" file. *HereĀ“s the script so far:* ------------------------- for file in ./*sweep1* do for file2 in ./*sweep2* do out=COMBINED sox -V4 -m -v 1 $file -v 1 $file2 $file-$out.wav done done -------------------------- As you may see I have put -v 1 in front of both of the files. If I do not, the two files will be mixed with a linear gain of 0.5, I guess half of its linear gain value. Hope someone can see my error here. The output should be the combination of the two first files with the same file name tokens. The method is "mix", -m. -- Best regards Kristopher