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MOTU 896HD Bandwidth issues
Thu, 02/03/2005 - 12:43
first let me introduce you to my setup. I have the MOTU 896 HD coupled (via 6pin -to- 4pin firewire cable) to my HP Pavillion Laptop.
The Laptop is powered by an AMD 64 3200+ Processor and has 512 MB of RAM. It has nothing special (save the motu) in terms of audio plugins or extensions, just the original (and I think integrated) SoundMax equipment.
Now if I read the motu Documentation correctly, I'm supposed to be able to record up to 3 tracks (simul) in 192kbps and up to 10 in 96kbps. But in application if I record any more than 1 track in any sample rate (even 44.1) I sometimes get blips in the feed, and upon playback of 2 or more tracks often the output will entirely stop for 3 or 4 seconds. It feels like there probably a processing bottleneck somewhere in the system, but I'm not sure where it would be.
If anyone else has had this problem, or if you can think of something I should try, please reply. Thanks!
Thu, 02/03/2005 - 13:00#1
Do you know the speed of your hard drive? It's best to record to a dedicated hard drive (not your boot drive) of at least 7200rpm. 5400rpm can work, but I've had better luck with faster drives. If your boot drive is pretty full, it might be fragmented as well.
What software are you using?
Even so, you're only recording a few tracks. If you have trouble with just two tracks at 44.1, something else is gumming things up. hmmm...
Fri, 02/04/2005 - 11:04#4
That could be it. An external FireWire drive will be much better. Also, because it is a dedicated drive, it would be safer if there is an OS crash, more easily backed up etc. Plus, you'll free up space on your boot drive, which will thus run better. (Defrag it anyway!)
I got the Maxtor One-Touch and I like it because it is whisper-quiet:
...although I now see that they have come out with the One Touch II, hmmmm...:
As for "latency", that term is not usually applied to hard drive access speed. Latency isn't really the issue here. Latency has more to do with the time it takes to convert audio to/from analog/digital. I wrote a long article on latency once, and it's here:
Hope That Helps!!