Sound files, Crashing, and Windows 7 (not as catchy as sun, sea and sangria) Update??

[Michiel Spape]

Hi,
Thank you greatly for the information, much appreciated!

Here's my 2p: I believe it is really nice that PST is finally testing ASIO drivers for the use in real-time experiments, but I'm slightly confused about how this is actually implemented. As far as I can see, and have always been assuming, E-Prime 1 (not sure about 2) relies on DirectSound - since they have never made a claim professional audio systems are required. ASIO, you see, is a Steinberg (who developed Cubase) framework for delivering realtime audio in scenarios where it really matters - i.e. in pro-audio music production, which generally required (up till a few years) a dedicated pro-audio system. In my years with E-Prime, I have, however, never heard of any such thing being used in conjunction with E-Prime, and instead have relied on the rather unassuming (Microsoft) DirectSound (part of DirectX framework, which is, I think, mainly developed for games) to take care of this. ASIO4ALL is a bit of a 'hobbyist' hack that enables most integrated hardware to run in low-latency music production systems... It is, however, not bad, and often better than bad 'real' ASIO drivers. 
Meanwhile, all that is of no concern whatsoever to Windows 7: ASIO has been around for ages (studios, like labs, don't immediately switch to new OS'es), is cross-platform, whereas CoreAudio is for the Macintosh (see http://en.wikipedia.org/wiki/CoreAudio), and finally, since Vista, Microsoft has released the low-latency WaveRT drivers (http://en.wikipedia.org/wiki/WaveRT), that would conceivably a much better option than either ASIO (for different hardware) or CoreAudio (for the Mac).

Last, and most importantly: how on Earth do you do this: "For audio experiment, PST is recommending end users consider
using the ASIO4LL driver or ensure their system has a CoreAudio driver on their system."? 

Best,
Mich

Michiel Spapé
Research Fellow
Perception & Action group
University of Nottingham
School of Psychology
www.cognitology.eu


-----Original Message-----
From: e-prime at googlegroups.com [mailto:e-prime at googlegroups.com] On Behalf Of aoifemcloughlin
Sent: 12 October 2010 12:33
To: E-Prime
Subject: Re: Sound files, Crashing, and Windows 7 (not as catchy as sun, sea and sangria) Update??

Hi all,

PST have just replied to me with this response:

Aoife,

While PST has not officially published timing results for Windows 7,
internal timing results have been positive for Windows 7 in regards to
experiment timing, display accuracy, and response devices in
comparison to other operating systems. The caveaut to why the delay
for publishing the timing results is in regards to support for the PST
Serial Response Box (SRBOX) under x64 editions of the operating
systems as well as low latency consistent timing for audio/sound
experiments. PST is internally verifying a 64-bit driver for the
SRBOX. For audio experiment, PST is recommending end users consider
using the ASIO4LL driver or ensure their system has a CoreAudio driver
on their system. PST will be releasing a utility to test your system
to determine if ASIO or CoreAudio is the appropriate API for your
sound paradigms. Please keep review of the web support site or forum
for any updates.

Sincerely,

Cindy Carper
Technical Consultant

I have attempted downloading XP mode on Windows 7 but as it is my
personal laptop that I am running the experiment on I only have
Windows 7 Home Edition. XP mode is only available to Professional and
above.

Currently I am about to install a virtual machine on to my laptop and
then run that using XP, details available here
http://www.howtogeek.com/howto/11060/create-an-xp-mode-for-windows7-home-versions-and-vista/.
I can only speculate at this point that it may mess up the timing a
bit, but will update here once I have everything installed and up and
running. Fingers crossed! The research I'm conducting is for my PhD
and I would really like to graduate at some point!!!

I'll be back with an update over the next few days,

Aoife

On Oct 12, 10:09 am, Michiel Spape <Michiel.Sp... at nottingham.ac.uk>
wrote:
> Hiya,
>
> Did anyone try yet to run E-Prime in "WinXP Mode" in Windows 7? I can't imagine the timing will be brilliant, but perhaps good enough for development purposes...
>
> Best,
>
> Mich
>
> Michiel Spapé
>
> Research Fellow
>
> Perception & Action group
>
> University of Nottingham
>
> School of Psychology
>
> www.cognitology.eu
>
> From: e-prime at googlegroups.com [mailto:e-prime at googlegroups.com] On Behalf Of Lidia Suarez
> Sent: 12 October 2010 01:33
> To: e-prime at googlegroups.com
> Subject: Re: Sound files, Crashing, and Windows 7 (not as catchy as sun, sea and sangria) Update??
>
> Hi Aoife,
>
> I wrote to them more than two months ago about this, they requested some files and I am still waiting for their response/solution. Unacceptable. Go for XP.
>
> Regards,
>
> Lidia
>
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