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| Stereo to 5.1 live - one sound card & no extra expense http://surroundbyus.com/sbu/viewtopic.php?f=11&t=283 |
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| Author: | PhilUsher [ Thu Aug 11, 2011 5:13 pm ] |
| Post subject: | Stereo to 5.1 live - one sound card & no extra expense |
Hi all, This is my first post and this may already have been covered but after studying the guide I realized I should be able do on the fly conversion without a second sound card, external decoder or anything more than was already in the system. The possibility of feeding Pandora One directly into SPEC/ArcTan upmix seemed like something fun. So, I wrote up some instructions here: Comments welcome. Two additional things: System load. On my system (reasonably substantial) typically I see CPU load of ~7% associated with live conversion. I haven't bothered to turn anything off to reduce load. The only thing I have found necessary is to suspend World Community Grid from running while doing live conversion - WGC in concert with live upmix drives my system to 100% and creates jitter and artifacts. This is odd because measuring load of each individually combines to only 80% - can't figure that one out but it's a small issue. However, the bottom of the Plogue Screen shows around dsp:30.50 - not sure what this number actually represents. Ticks and clicks. After a while clicks and ticks start presenting themselves in the output audio. A restart of Plogue remedies the issue - can't figure that one out either. Cheers ... Phil Usher |
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| Author: | Zeerround [ Sat Aug 13, 2011 9:43 am ] |
| Post subject: | Re: Stereo to 5.1 live - one sound card & no extra expense |
Thanks Phil, Yeah that was the intention with the 3rd method. Glad you got it working. Z |
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