[ddots-l] Re: Glitches and pops?

Gord wrote: Wow!  Tascam had put up what was considered the definitive set of 
tweaks for
best audio performance a couple of years ago and that was one of the first
things they said, especially when using asio drivers.

Phil replied: that's a great document, a part from that twique.  I have also 
found that speeding up 
the menus twique is a good one too!

Gord wrote: I did definitely
notice an improvement with my laptop, which is a 202ghz dual core, when I
did this recently.  Now lately I've been experimenting with going back to
wdm with my motu, so maybe I should try chaning this setting back.  Every
one of the dancing dots systems that I set up had this setting on them, as
well as the paging settings and visual performance settings.

Phil replied: the pageing and visual performance are good twiques to do.  Noel 
is a good guy and his 
article is definitely worth a read.

By the way, if any of you are uing MOTU gear in WDM mode then, you will want to 
change this setting 
in the wave section of your Aud.ini file.


KsUseInputEvent=1





Regards, Phil Muir
P J Muir Productions
Music And Audio Production
URL:
http://www.philmuir.com/
Band website:
http://www.demuirs.com/
----- Original Message ----- 
From: "Gordon Kent" <dbmusic@xxxxxxxxxxxx>
To: <ddots-l@xxxxxxxxxxxxx>
Sent: Friday, March 28, 2008 6:13 AM
Subject: [ddots-l] Re: Glitches and pops?


> Wow!  Tascam had put up what was considered the definitive set of tweaks for 
> best audio 
> performance a couple of years ago and that was one of the first things they 
> said, especially when 
> using asio drivers.  I did definitely notice an improvement with my laptop, 
> which is a 202ghz dual 
> core, when I did this recently.  Now lately I've been experimenting with 
> going back to wdm with my 
> motu, so maybe I should try chaning this setting back.  Every one of the 
> dancing dots systems that 
> I set up had this setting on them, as well as the paging settings and visual 
> performance settings.
> Gord
> ----- Original Message ----- 
> From: "Phil Muir" <ddots@xxxxxxxxxxxx>
> To: "Dancing Dots E-mail List" <ddots-l@xxxxxxxxxxxxx>
> Sent: Monday, March 24, 2008 2:04 PM
> Subject: [ddots-l] Re: Glitches and pops?
>
>
>> Gord wrote: Have you set priority to background services in the performance 
>> dialog under the
>> advanced tab of system in windows control panel?
>>
>> Phil replied: No, no, no!  Very very bad idea.  In fact, this can make your 
>> system much more
>> unstable.  I remember trying this on several occasions with various set-ups 
>> and found that system
>> performance got significantly worse.  I wondered if it was something to do 
>> with my system.  Then, 
>> I
>> came across an article written by Noel Borthwick from Cakewalk.  Noel 
>> recommends not doing this 
>> at
>> all, and having played with this setting here myself and discussed this with 
>> others in the 
>> business,
>> I agree with Noel.
>>
>> you will find noel's post at the following URL:
>>
>> http://forum.cakewalk.com/tm.asp?m=1238330
>>
>>
>> Here's a quote from noel's post.  Noel wrote: "I don't recommend this. 
>> Setting the sheduling to 
>> background for "better performance" with drivers is a myth. At best this is 
>> masking a real 
>> problem with
>> the driver. All this does is change the quanta for the timeslice assigned by 
>> the windows 
>> scheduler. By making the time slice longer you are potentially setting up a 
>> scenario where the 
>> high priority audio threads in the host application might be denied frequent 
>> enough servicing by 
>> the scheduler! This might actually result in more dropouts or clicks. Here 
>> is a quote from an 
>> MSDN article
>>
>> http://support.microsoft.com/kb/308417
>>
>> . If you click Programs, the foreground program runs more smoothly and 
>> responds more quickly. If 
>> you want a background task such as a Backup utility to run faster, click 
>> Background services.
>> . The Programs option allocates short, variable time slices (quanta) to 
>> running programs, and the 
>> Background services option assigns long, fixed quanta.
>>
>>
>> Contrarary to the SOS article that says "this is the most essential tweak of 
>> all, because ASIO 
>> drivers run as background services in Windows." An ASIO
>> driver is just another a dll running in the process memory space, its NOT a 
>> background service - 
>> at least not typically. I've never seen an ASIO driver
>> that installs an actual Windows service (you would see that in the services 
>> view otherwise). Its 
>> just a DLL running a user mode thread to service the audio
>> device and asio callbacks. The thread is no different from the threads that 
>> run in the host 
>> application itself. If the driver is coded to have the thread
>> priority set to time critical and its thread is not being blocked by 
>> something else there should 
>> be no need to change this setting. i.e. for the few people
>> this "helps" its likely that all its doing is masking another more 
>> fundamental problem.
>> Additionally setting the sheduling to background is allowing ALL other 
>> background tasks on your 
>> computer to get a longer timeslice - i.e some other windows
>> service or background application is now more likely might to start 
>> interfering with the host 
>> task."
>>
>> Regards, Phil Muir
>> P J Muir Productions
>> Music And Audio Production
>> URL:
>> http://www.philmuir.com/
>> Band website:
>> http://www.demuirs.com/
>>
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>
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