Subject: Re: [linux-audio-dev] Re: Hardware advice please.
From: brian redfern (nutmeggatron_AT_yahoo.com)
Date: Fri May 25 2001 - 10:05:43 EEST
I've been recording on a gateway laptop with just 128
megs of ram and a 233mghz processor and a standard 10
gig hd, using broadcast2000 (and after running the
lowlatency script to modify my kernel) without any
dropouts.
--- Patrick Shirkey <pshirkey_AT_boosthardware.com>
wrote:
>
> >First, i take it that you plan to run Windows on
> the laptop,
>
> NO FUCKING WAY! This baby will be pure from the day
> I buy it.
>
> > You also need low seek times as well, which
> >IDE/ATA drives tend not to offer, and is directly
> related to disk
> >RPM. 5400 RPM is probably too slow.
>
> Hence my questions. Does probably mean definitely?
>
> >with disks that provide about 18MB/sec maximum
> internal
> >transfer rate.... These disks would be close to or
> >over their practical limit for 24 96MHz tracks.
>
> So, would any HDD that goes faster than 20MB/sec be
> ok?
>
> >>I am also intending to buy this new fangeled dream
> machine
> >>from RME which will attach to my box via a pcmcia
> card.
>
> >Which is not yet available :)
>
> But will be soon right;-]
>
> >>So can anyone tell me if 256Mb ram will be enough
> to record/play say, 32
> >>stereo tracks at 96mhz and 32 bits/sec with a few
> ladspa plugins running
> >>in real time?
>
> >Its not a function of memory size as much as disk
> throughput and CPU
> >Hz. I can play 32 mono 32 bit (float) tracks on a
> PII-450 with 148MB
> >of RAM with disks that provide about 18MB/sec
> maximum internal
> >transfer rate. My system isn't sweating too much at
> that level, but
> >its definitely working quite hard. These disks
> would be close to or
> >over their practical limit for 24 96MHz tracks.
>
> So unless the HDD has really fast transfer rate it's
> useless for
> recording even with the card doing the bulk of the
> work? That's why I
> asked about scsi. The only problem is that it would
> be a pcmcia scsi
> card which I'm not sure will transfer faster than an
> internal ide HDD.
>
> Before I get too excited about this new arrival from
> RME I want to find
> out some info on the peripherals like a notebook
> computer. From your
> last reply I get the impression that the current
> selection of notebooks
> which all come with 5400rpm HDD's (including the
> powerpc) will NEVER be
> able to succesfully record without any dropouts.
>
> My only hope is that a pcmcia scsi card attached to
> a fast scsi HDD will
> be able to. If no one thinks this is possible then I
> will just save my
> cash and wait for the next generation of notebooks
> which better come
> with 7200rpm HDDs.
>
>
> To recap:
>
> - A notebook with 256 MB ram is good (more is
> better)
> - An ide HDD with 5400rpm needs have an internal
> transfer rate faster
> than 20MB/sec
> - An ide HDD with 7200rpm is preferable esp with
> fast internal transfer
> rate.
> - A combination of pcmcia scsi card and fast scsi
> HDD may or may not
> perform better than an internal ide HDD with 5400rpm
> and ok internal
> transfer rate.
>
>
> Can anyone either confirm or deny?
>
> --
> Patrick Shirkey - Manager
> Boost Hardware.
> http://www.boosthardware.com for latest stock and
> prices.
>
> Importing Korean Computer Hardware to New Zealand.
=====
This message was
sent by
Brian W. Redfern
Have a nice day :=)
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This archive was generated by hypermail 2b28 : Fri May 25 2001 - 11:46:45 EEST