Explanation For SoX Filter Controls

I was losing the last moments of a lot of tracks. In Low Level Playback Options, I adjusted the Max. Memory Allocated For Tracks Preload down (it now sits at about about 2/3 along the bar - around 11,000) and I haven’t had a single track end early. The problem has gone.

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The info for the SoX upsampling filter settings appear scattered on their site, with little hints here and there that should help to fill in some of the gaps. They do explicitly mention to not change the bandwidth rate, but do not give an explanation of why.

From the SoX FAQ site:
" *Bandwidth setting: don’t change from the default setting (95%)."

" * Phase setting: if resampling to < 40k, use intermediate phase (-I), otherwise use linear phase (-L, or don’t specify; linear phase is the default)."

http://sox.sourceforge.net/Docs/FAQ

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