Any format which is not native (i.e. not Flac, MP3, WMA, Wav) has to be
transcoded into one of the native format of WAV, Flac or MP3.

If transcoding is into Flac, then no matter what the encoding rate
(e.g. 32kbps, 320kbps) of the source - the Flac stream from server to
player will always require about the same bandwidth about 1500kbps.

If the transcoding is into MP3 then the user may be able to select the
quality and bitrate of the MP3 bitstream sent between server and
player. If a user wants to limit bandwidth to a plauyer then setting
the "Bit rate limit" will automatically choose the MP3 forma.  

Typically for NAS systems with low power CPUs there is a compromise
between bandwidth and CPU utilisation.  If stuttering is happening on a
NAS system with transcoded streams - two possible cause include - lack
of bandwidth or CPU overload.  Many NAS systems have a CPU which do not
support Floating point and can suffer from CPU overload if the decoding
(e.g. mplayer) and encoding applications (e.g. flac, lame) are not
compiled to use Fixed point arithmetic.

Furthermore even with Fixed point the processor of a NAS system may not
have enough memory or CPU capacity to handle multiple or synced streams.


-- 
bpa
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bpa's Profile: http://forums.slimdevices.com/member.php?userid=1806
View this thread: http://forums.slimdevices.com/showthread.php?t=53021

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