Is there any software that can analyse a WAV or CDA to tell if is a decoded MP3 file? I have quite a lot of CD's that people have done me that I suspect are from mp3 files, and if this is the case, I need to find proper uncompressed copies.
There is no exact way of detecting this. You can try by analysing the frequency spectrun of the file. Many MP3 codecs cut almost straight off above 16khz signals.
fusk off, I had my hopes up then. No-one click on his shitty punjabi link, as it's spam and ups his rating on his pop-star website: 'By clicking on that link, you just made Punjabi MUnda's fan base expand by 1 and become more famous! Punjabi MUnda now has 108 fans and they will be hitting the record stores to buy albums in 26 minutes'
Take some wave editor like Cool Edit and substract left channel from right channel. On places where loud sounds, formerly located in the centre (e.g. voice), are deleted by this you'll hear severe artifacts if the source was lossy compressed (works for vorbis/mpc /... too). This doesn't work for mono and stereo with totally independant channels, but very well for "normal" stereo music.
