The audacity man page suggests that ecasound be used to batch process audio. Well, I found all the pieces and installed it and it does not do a good job. As can be seen via the image, audacity does a great job at 20 Hz @ 48 db, while ecasound at 50 Hz (unknown rolloff) is not good. For my needs it isn’t usable. I initially ran it at 20 Hz, but it was not usable at all. It certainly did not cut off the frequencies below 20 Hz. If there is a way to set the ecasound rolloff, I do not know what it as, I could not find anything in the documentation.
So, is there a way to run audacity via the CLI and have it do a high pass filter with a setting of 20 Hz @ 48 db?
I’m going to have a few hundred WAV files to filter and I’d sure like to batch that work via a simple shell script, instead of doing them by hand.
Thanks. After digging thru the documentation about macros, I have a simple one set up that does the same thing I did by hand. As I type this, it is running thru all of the files (except a select few) in a directory I had placed these files for further processing.
BTW, the manual is incorrect as to where the exported files are placed. It is: cleaned