steampipe at iwr.ru.ac.za
Mon Nov 12 23:55:34 PST 2007
On 12 Nov 2007 at 18:47, Martin Lynch murmured decisively:
> Hi David,
> disks' fault (which have no problems simultaneously capturing and
> playing HD TV signals, for example, in full 1080 glory...). And before
> the obvious question arises, it's NOT a case of the drives not being DMA
> enabled - they're 2 X 320 GB Seagate SATA 2 @ 7200RPM: cached reads =
> 761.46 MB/sec; buffered disk reads = 148.93 MB/sec with Ardour running
that is a hell of a lot faster than mine. initial test was 3gb/s, and by
enabling 32bit mode I doubles it to just over 6GB/s. seems Fedora is
considering my SATA drives as IDE drives due to my BIOS settings.
I'll fix it next week, or later when I upgrade from FC5
> I did notice that there were an inordinately high number of regions - ie
> perhaps 50+, which was odd given I'd only tried to record the damn thing
> maybe 4 times. I'm blissfully ignorant about programming etc but I won't
> let that stop me from suggesting it's a RAID implementation error in
remember that all regions are read during playback, even if they are
beneath a topmost region that is what you actually hear.
> As for the sample rate, I'm unfamiliar with the M-Audio 1010 (I use
> M-Audio FireWire Solo) but are you sure the device is capable of 44K?
> Some devices are fixed at what amounts to a "native resolution" which
> jack can't alter...
yes it can do 44.1k, it is listed in the options. I've had it doing 96k,
so I know I can change it, just cannot figure out how right now (-:
> Can you get it working at 88.2K, then halve the sample rate afterwards?
that would use too much disk space (-:
> Good luck and sorry I can't be of more help, and here's hoping there's a
> solution for the very frustrating "Disk Can't Keep Up" message - I
> certainly can't trust Ardour to record live music until there is!!!
my solution was using
hdparm -c1 /dev/hda and /dev/hdc
to set 32 bitmode. I could not enable DMA and other fun things, but did
get a lot more speed and successfully mixed 3 songs.
If you receive email saying "Send this to everyone you know",
PLEASE pretend you don't know me.
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