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generic software, generic hardware
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generic software, generic hardware
by _angelo
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Hi all,
thanks for the support you always give promptly. Sorry for the common, probably redundant question. I am working on a PC streaming applications, a little hardware transmit 800Khz PCM 16 bit mono stream. I have woked mainly as is done in the playstram AL sample. Anyway, i don't understand why, with the generic software, the audio is processed fast and perfect. With the "generic hardware" , audio decoding come slower, the audio data get enqued, wholes in the audio are audible since buffer processing is too much slower comparing to the encoding timing. many thanks, Angelo _______________________________________________ Openal mailing list Openal@... http://opensource.creative.com/mailman/listinfo/openal |
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Re: generic software, generic hardware
by Daniel PEACOCK
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Hi, The "Generic Hardware" device uses the same timer update as the "Generic Software" device (every 25ms) so I'm not sure why there would be much difference in their ability to keep a single audio stream running. What soundcard are you using? Could you log some time-stamps that show what time you queue a new buffer on the Source, and the time when AL tells you that a buffer has been processed on that Source? I do have a newer wrap_oal.dll (component containing the "GH" and "GS" devices), which does have one particular improvement for getting an up-to-date Buffers Processed indication from the Source (should make it more accurate than the "GS" device). I'll send that to you privately. Dan Creative Labs (UK) Ltd. Notice The information in this message is confidential and may be legally privileged. It is intended solely for the addressee. Access to this message by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying or distribution of the message, or any action taken by you in reliance on it, is prohibited and may be unlawful. If you have received this message in error, please delete it and contact the sender immediately. Thank you. Creative Labs UK Ltd company number 2658256 registered in England and Wales at Belmont Road, Belmont Place, Maidenhead, Berkshire, SL6 6TB gmail <angelo70@... om> To Sent by: OpenAL openal-bounces@op <openal@...> ensource.creative cc .com Subject [Openal] generic software, generic 04/29/2009 01:12 hardware PM Hi all, thanks for the support you always give promptly. Sorry for the common, probably redundant question. I am working on a PC streaming applications, a little hardware transmit 800Khz PCM 16 bit mono stream. I have woked mainly as is done in the playstram AL sample. Anyway, i don't understand why, with the generic software, the audio is processed fast and perfect. With the "generic hardware" , audio decoding come slower, the audio data get enqued, wholes in the audio are audible since buffer processing is too much slower comparing to the encoding timing. many thanks, Angelo _______________________________________________ Openal mailing list Openal@... http://opensource.creative.com/mailman/listinfo/openal ForwardSourceID:NT0006B942 _______________________________________________ Openal mailing list Openal@... http://opensource.creative.com/mailman/listinfo/openal |
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