Rockbox mail archive
Subject: Re: Crossfeed volume?
Magnus Holmgren wrote:
> Should the crossfeed really lower the volume that much? I need to
> increased the volume by 10 steps to get back to the "non-crossfeeded"
Should, no. Does, yes. The highpass filter used in the current incarnation
of crossfeed is a one-pole no-zero type, which lowers the volume with
increasing cutoff frequency. This can be fixed by designing a better filter,
for example a one-pole one-zero filter in either highpass or shelving
There's also a possibility my Coldfire optimised version has some bugs in
it, but I think it's right.
Received on Tue Nov 15 23:48:17 2005
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