Re: High passing the mains
Defining, in this case, a digital clip as two or more consecutive full-scale samples...
I've noticed, on some highly engineered recordings, that if some of the low frequency content is removed (say, by a digital crossover), what's left exhibits clipping, where the contribution of the low frequency wave had pulled the high frequencies away from the limit.
Not having seen that mentioned elsewhere, nor any admonitions to attenuate the original data before crossing, I thought I'd throw it in.
Here's an example:
No clips (as defined above) in the original track.
The second track is a copy of the first, high passed in Audacity at 80Hz and 24dB per octave, simulating the signal to be forwarded to the mains DAC.
Defining, in this case, a digital clip as two or more consecutive full-scale samples...
I've noticed, on some highly engineered recordings, that if some of the low frequency content is removed (say, by a digital crossover), what's left exhibits clipping, where the contribution of the low frequency wave had pulled the high frequencies away from the limit.
Not having seen that mentioned elsewhere, nor any admonitions to attenuate the original data before crossing, I thought I'd throw it in.
Here's an example:
No clips (as defined above) in the original track.
The second track is a copy of the first, high passed in Audacity at 80Hz and 24dB per octave, simulating the signal to be forwarded to the mains DAC.