Sucky with PCs
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Posted on Jun 07, 2006 10:40 am
Flubly
Member Since: Oct 22, 2005
Hey everyone, I've been having problems with my cpu usage. I record and playback audio on Adobe Audition on 96000hz 32 bit float all the time but recently its been choppy. It will play for a while but then start freezing and being choppy and taking a long time to stop. This is sometimes only with four tracks. I've tried working with the buffers but that doesn't help. What bothers me is that I shouldn't have to, I've always been able to run that much audio even with other programs on. And Audition was the only program on. I looked at the taskmanager as the audio played and when the cpu usage spiked, I could only add up about 10 percent from the all the programs but on the graph it was up to 40 and 50. Does anyone know whats going on?
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Jun 07, 2006 10:43 am From your profile it seems you have a decent PC, the SB sound card is a red flag...my first, default suggestion is look for updates to your OS, application and sound device...beyond that, how full is your hard drive? When was the last time you defragged the hard drive? Have you scanned for viruses and crap?
Jun 07, 2006 11:32 am i can't believe soundblaster's are samplin' at 96k....
i'd try steppin' down the samplerate to 48khz
that's all i gotta say about that
Jun 07, 2006 11:32 am Yeah, 96000hz 32 bit float is asking a lot of your computer...
Jun 07, 2006 11:35 am infact i'm willing to bet soundblaster might not even support 32 float....go into your driver settings, and make sure they are set to the same exact samplerate and bitdepth as you're using in audition.
Jun 07, 2006 11:37 am hehehe, remember, Creative has a history of saying their cards do one thing, but then they actually do another...anyone remember that last lawsuit?
Jun 07, 2006 11:51 am ya know that reminds me, my home dvd player says, and i quote
Quote:
56khz 18bit D/A conversion
what the heck does that mean??? do they really take a 24/48 stream and upsample it to 18/56?
that makes no sense to me atall
Jun 07, 2006 11:53 am What the heck is 18/56??? ain't no standard I have heard of...
I remember my first little $20 set of cheapo computer speakers which said in big bold letters on the box "100 watts 20-20k range"...uh huh...sure they are...
FlublyMember
Since: Oct 22, 2005
Jun 07, 2006 12:14 pm Actually I could hear a very slight quality change when I bumped up my samples to 96000hz, it was kinda like I could hear more going on and the panning had more depth. Well I guess I really dont need that, so I can put it down. If I record 96000 hz samples into a 48000hz session I wont hear any difference right? Also Adobe Audition only lets you record at 16 bit or 32 bit theres no 24 bit option.
Oh by the way I've used 21.9 gigs out of 55.8 gigs and never defragged. I regularly scan for spyware and viruses but turn off the programs when I'm offline recording. I also use the program crap cleaner regularly if thats of any significance.
FlublyMember
Since: Oct 22, 2005
Jun 07, 2006 12:15 pm "If I record 96000 hz samples into a 48000hz session I wont hear any difference right?"
That was kind of vague. I mean even though I recorded with 96000hz samples, it will only sound like they are at 48000hz right?
Jun 07, 2006 12:17 pm If you heard a difference goin up, you'lllikely hear one going down...
But, be aware, when it goes onto a CD it's 16bit/44.1Khz anyway...
High def sources are great to have, but if it kills your PC, it's a problem.
Defrag on a regular basis...like weekly.
FlublyMember
Since: Oct 22, 2005
Jun 07, 2006 12:28 pm I just checked the session I was listening to and it was a 44100hz session that was skipping not a 96000hz. I bumped down my digital output from the SB control panel to 48000hz and it was still skipping. I'm defragging my hardrive right now so hopefully that will help.
Jun 07, 2006 12:32 pm it doesn't hurt to find a defraging software better than the bunndled windows one too...I like Abexo's myself... www.abexo.com/
zekthedeadcowEat Spam before it eats YOU!!!Member
Since: May 11, 2002
Jun 07, 2006 04:31 pm what do you have the latency set as? SB's can't take much... My old SB PCI512 would strain to do a 16bit 44.1 khz track at around 60ms... but switch to something nice like my Edirol FA-66 and it's doing less than 10ms without problems..can't quite do 192khz yet... but I havn't tried it with the RAM drive the new linux driver sets up :) ... been doing photo stuff reciently...
FlublyMember
Since: Oct 22, 2005
Jun 07, 2006 08:45 pm The defrag didn't help the problem but I will keep on doing it for the other reasons you are supposed to. The big problem here is that I know I can run four tracks on a 44.1khz 32bit session without any problems with cpu usage at all, but I am having problems. I don't know why, and I shouldn't have to downgrade quality because I know my computer can do it from experience. How do I check and change my latency by the way?
Jun 08, 2006 10:03 am you can 'ping' yourself....
send a sound with a sharp attack and fast release (percussion) out an output, then record it on a seperate track on your input....if ya zoom in to where you can count milliseconds the differance between the two transients is your latency time.
FlublyMember
Since: Oct 22, 2005
Jun 08, 2006 10:15 am There something wrong with my computer and I'm going to have to get it checked. When I have taken off 10 optional processes and have 0 programs running on only one account, I am getting cpu usage at highest 13%. The sound will even skip on the logoff music from windows.
