Audio DiffMaker and audio players
- Thread starter r010159
- Start date
Difference extraction requires very accurate synchronization of the samples (in terms of delay, level, and frequency response), and Audio DiffMaker might not have done a perfect job. Even with a small error, most of the difference will be the original signal at a lower level and possibly with some filtering (e.g. if the delay is not matched exactly, it will be mostly high frequencies).
Also, did you use the same sound card for both playback and recording ? If not, then there are synchronization issues due to the slightly different clock frequencies, which also slowly change over time by a small amount.
I just used Audacity and Sunflower to record directly from each audio player and then compared the results.