Ripping an Album with Audacity
From Federal Burro of Information
Process to far
1. amplify
2. noise removal
3. click removal
reference:
http://manual.audacityteam.org/man/sample_workflow_for_lp_digitization.html
removing hight pitched squeel
https://www.youtube.com/watch?v=Rh62itfhmV4
1. select all
2. analyse -> plot spectrum
trial and error process, find a peak, not it's frequency 10902Hz
then efect -> notch filter frequency = 10902 , then bottom slider all the way to 20