[mythtv-users] mythmusic and wav files

Mike Perkins mikep at randomtraveller.org.uk
Wed Jan 26 15:06:44 UTC 2011

On 26/01/11 13:27, Jim Morton wrote:
> On 1/26/2011 7:08 AM, William Kenworthy wrote:
>> Hi, I have had problems playing wav files in mythmusic for a long time.
>> mp3's play fine - but wav files max out the cpu and have long
>> pasues/delays/missing pieces and system response (i.e., to lirc IR
>> events) is slow or missed altogether - a symptom of the high load.
>> This happens on a combined athon64 FE/BE and is worse on either of two
>> atom/ION PXE disless FE's.
>> Configuration is NFS for the music directory for the remote systems, but
>> the FE/BE has it as the local storage. Myth version is 0.23 fixes on
>> gentoo (~6 years old for the FE/BE).
>> Its actually mythfrontend that seems to generate the high load which
>> implies its the builtin player. Is there something I can do, or should
>> I be using mplayer or something else to play wav files (how?).
> The first step would be to check the frontend log.
.wav files are raw, unencoded audio, aren't they? If so, I can't see how it is 
possible for them to require much processing, if any at all. The only thing I 
can think of is if the sample rate is very high and you are running short of 
memory buffering input and/or output.


Mike Perkins

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