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I guess one explanation for the robustness is that noise is typically additive and other types of distortions (loudness compression, eq, reverb, etc.) are usual
by ptzz 10y ago
I guess one explanation for the robustness is that noise is typically additive and other types of distortions (loudness compression, eq, reverb, etc.) are usually linear filters, i.e. only modifies the amplitude (and phase) of already existing frequencies. If the underlying peaks are strong, this normally does not change peak locations.
- muzakthings 10y agoExactly. Typically you won't see radio/streaming services messing around with reverb, but certainly different stereo systems have their own EQ (changes phase, amplitude) and often times the format/bitrate (again: phase, amplitude) or loudness (amplitude) will be different. Most people don't realize this, but usually artists/labels will have a different mastered version of a song on each platform. Spotify, for instance, has it's own normalization algorithm that it puts tracks through to even out the listening experience in terms of loudness (RMS). Of course artists and their mastering engineers want to have some control over how that sounds, so they will change it.