Is an m-audio sufficient for my use? Well, you decide.
My use is for speech recognition. I need the best input sound available, with the lowest
latency.
Both are tremendously important for speech recognition accuracy. (Low latency helps with
accuracy as well as speed.)
I run Dragon NaturallySpeaking through Wine. Wine does not play well with Pulse, so I
disable Pulse.
I also need portable hardware that will work with a laptop. Mine is an ASUS. The built-in
card is an hda-intel, so I must use something else.
Eventually, I want to tweak my computer for the lowest latency possible, and get the best
portable USB device, but right now I'm content just to update my Intrepid real-time,
and get a decent USB soundcard.
Susan
-----Original Message-----
From: Jacob Lee <artdent(a)gmail.com>
Sent: Oct 23, 2008 7:23 PM
To: Susan Cragin <susancragin(a)earthlink.net>
Cc: linux-audio-user(a)lists.linuxaudio.org
Subject: Re: [LAU] Intel-HDA sound issues
On Tue, Oct 21, 2008 at 9:06 PM, Susan Cragin <susancragin(a)earthlink.net> wrote:
Anyone have any luck with an m-audio transit?
Yes and no. It works fine and has great sound quality, but there are a
few caveats:
- it needs custom firmware. You need "madfuload", which comes with
many distros (or its homepage is
http://usb-midi-fw.sourceforge.net/
). Getting madfuload to run automatically (i.e. when you plug in the
card) is occasionally challenging.
- the built-in mic preamp doesn't provide much gain. I needed to use
an external preamp.
- one tiny 1/8'' connector for two input channels; you'll need
adapters to turn that into two 1/4'' (unbalanced) line ins, and I
occasionally get loud static by accidentally jostling the adapter.
Last: even at mediocre latency settings (e.g. -n 3 -p 512), and having
adjusted the IRQ priorities and so forth, I get occasional xruns.
However, I think this is a problem with my laptop and not with the
sound card, for two reasons:
- I had no better luck with another usb sound card
- I see xruns when the lcd tries to dim itself or when I go into the
power savings dialog, leading me to suspect the video card.
So right now I'm inclined to blame the video card hogging the bus or
something like that, though I honestly have no clue. But it's probably
not the fault of the Transit.
In sum, it's a decent card for the price, if it's sufficient for your uses.
--
Jacob Lee
artdent(a)gmail.com