I'm trying to use the following to upsample everything to 24/96 via
samplerate_best:
defaults.pcm.rate_converter "samplerate_best"
pcm.!default {
type plug
slave.pcm {
type dmix
ipc_key 1024
slave {
pcm "hw:0,0"
format S24_3LE
rate 96000
}
}
}
When I play 16/44.1 flac files via mpd, the CPU stays around 95%.
When I play the same files via mplayer, the CPU stays around 2% and I
see:
AO: [alsa] 96000Hz 2ch s16le (2 bytes per channel)
This is confusing for 2 reasons:
1. Doesn't the above indicate that the source file is not being
converted from 16-bit to 24-bit even though I've specified "format
S24_3LE"?
2. Why is so much more CPU being used to play files with mpd than with
mplayer? If I remove the asound.conf entries, mpd no longer uses more
than 2% CPU.
- Grant
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