Audacity Forum

Oh, I tried it again with a violin piece, I could reliably tell 128 from 320 in a part with a transition from a low pitch to a high pitch in the violin. I got 9/9 right, meaning a chance of me being guessing of only 0,2%.

192 vs. 320, however, was indistinguishable.

Thank you for your great reply. Since you say the MP3 conversion process has timing changes, what if instead of doing 128 kbps MP3 to FLAC, I do 128 kbps MP3 to 320 kbps MP3, both derived from that FLAC? Will there still be timing changes between 128 and 320 to invalidate this process? Furthermore, ...

Hi guys, Here's what I want to do: I have a FLAC version of a song and the same song converted to 128 kbps MP3 with Audacity. I want to invert the soundwaves of the 128 kbps and overlap them on the FLAC waves so that the sound cancels out. This way, all that will be left will be the extra sound adde...