Re: Playback speeding up
Ed Phillips <[email protected]>
| Newsgroups | gmane.comp.lib.openal |
|---|---|
| Message-ID | <[email protected]> |
Hi Chris,
On Tue, 22 Feb 2011, Chris Robinson wrote:
> On Tuesday, February 22, 2011 10:29:33 AM Ed Phillips wrote:
>> At various random times, the music speeds up
>> for about 3-5 seconds and then goes back to normal, however, since the
>> pitch stays the same, it tells me that maybe something on the system is
>> trying to be "smart" and play catch-up for a sound device that is not
>> keeping up (mine is an SBLive!)... or similar. Any idea what might be
>> causing this?
>
> Hi.
>
> Is it only streaming sources that skip/fast-forward like that, or is it all
> playing sounds? Which version of OpenAL are you using, and which output
> backend (the device specifier/name should say)?
Not sure what was going on... but it appears to have cleared itself up.
I did a complete recompile, and cleaned up some includes that where
causing it to pull AL/ALC headers from the wrong place (not sure why that
should matter for code expecting the 1.0 spec - it's just a bunch of
prototypes that haven't changed). Also, now that I'm thinking about it,
there were some system updates pending reboot (maybe including Pulse
stuff) at the time I was getting the weird audio speed-ups, so that's
likely the culprit.
Looks like the version in use now is:
Loading OpenAL from system (dlopen) path
OpenAL - Available Devices:
OpenAL device 0: PulseAudio Software
OpenAL device 1: ALSA Software
OpenAL Driver Init:
OpenAL
Missing OpenAL Extension function 'EAXSet'
Missing OpenAL Extension function 'EAXGet'
Vendor: OpenAL Community
Version: 1.1 ALSOFT 1.12.854
Renderer: OpenAL Soft
Extensions: AL_EXTX_buffer_sub_data AL_EXT_DOUBLE
AL_EXT_EXPONENT_DISTANCE AL_EXT_FLOAT32 AL_EXT_IMA4 AL_EXT_LINEAR_DISTANCE
AL_EXT_MCFORMATS AL_EXT_MULAW AL_EXT_MULAW_MCFORMATS AL_EXT_OFFSET
AL_EXTX_sample_buffer_object AL_EXT_source_distance_model
AL_LOKI_quadriphonic
I'm not sure which driver it's picking but it's probably Pulse since it's
in slot 0?
Thanks,
Ed
Ed Phillips <[email protected]> University of Delaware (302) 831-6082
Systems Programmer IV, Network and Systems Services
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