I am designing a (low pass) filter for anti aliasing an audio signal before I pass it through and analogue to digital convertor, I eventually want to put it back into an audio output. How important is any phase shift caused by the filter in affecting how the audio will sound at the output?
2006-12-21 06:00:51 · 3 answers · asked by Om 5 in Science & Mathematics ➔ Engineering
The phase shift won't make that much difference since your ear can't distinguish it. I believe a Bessel filter has the lowest phase shift. If you make your sample rate high enough, (that's why the use oversampling) you can get by with a real cheap simple filter. All the CD players advertise oversampling as being better quality but it just lets them use cheaper filtering.
2006-12-21 06:09:31 · answer #1 · answered by Gene 7 · 1⤊ 0⤋
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2016-12-01 01:31:36 · answer #2 · answered by abigail 4 · 0⤊ 0⤋
memory can effect the sound quality if your processer is not quick enough to handle the amount of memory you may have to compress the sound if it is video and sound combined.
2006-12-21 06:08:43 · answer #3 · answered by pegasis 5 · 0⤊ 0⤋