Audio Drivers -ACID Product Family - MAGIX Community Forums Archive

Subject:Audio Drivers Posted by: DKeenum Date:1/31/2003 1:48:19 PM I just got an Edriol UA - 20 (usb)and I'm confused about the drivers. There are WDM and MME drivers included on the CD. Can someone explain the difference to me? I've read the manual and I'm missing something. I use ACID 3.0 & 4.0 and Sound Forge almost exclusively.
Subject:RE: Audio Drivers Reply by: Iacobus Date:1/31/2003 6:31:15 PM MME is the precursor to WDM. Use WDM if you can; it's faster than MME in performance. HTH, Iacobus
Subject:RE: Audio Drivers Reply by: pwppch Date:1/31/2003 9:25:48 PM Actually, a well written native MME Wave driver will beat the pants off of a WDM driver in performance. Remember, WDM drivers must have their Wave i/o emulated in software. The Kmixer and other OS components jump between the app and the driver. Example: The Audigy only works at 48 kHz in hardware. In order for you to play at 44.1 the OS jumps in and resamples everything on the fly. Expensive. For those that have the Echo hardware, the PureWave mode these drivers can run in, run circles around the WDM Wave Emulation mode. Of course, a badly written driver will be bad no matter what type it is. Peter
Subject:RE: Audio Drivers Reply by: Iacobus Date:2/1/2003 1:29:24 PM Thanks for that clarification, Peter! Even a non-techie like me can learn something sometimes. :) Iacobus
Subject:RE: Audio Drivers Reply by: DKeenum Date:2/1/2003 2:07:14 PM I emailed edriol and they recomended the WDM drivers. They said it would give me lower latency. What do you think about that? BTW, thanks for the help.
Subject:RE: Audio Drivers Reply by: pwppch Date:2/1/2003 8:56:51 PM They don't provide native Wave drivers as far as I know. Like I said, it depends on the driver, but with the built in overhead of 30 ms for WDM drivers, I don't see how they could claim this. Peter
Subject:RE: Audio Drivers Reply by: Iacobus Date:2/2/2003 10:01:23 AM I know I've had very minor problems while using my Audiophile's ASIO drivers while recording digital audio; I usually get about a 500 ms offset while recording and it doesn't matter what latency it's set at. (I've tried them all.) WDM doesn't give a problem though. Of course, this all may stem from the fact that the drivers I'm using are betas. (5.10.00.29x12) I've been meaning to try my USB Duo's ASIO drivers for comparison but I haven't gotten around to it yet. Iacobus

Subject:Audio Drivers

Posted by: DKeenum

Date:1/31/2003 1:48:19 PM

I just got an Edriol UA - 20 (usb)and I'm confused about the drivers. There are WDM and MME drivers included on the CD. Can someone explain the difference to me? I've read the manual and I'm missing something. I use ACID 3.0 & 4.0 and Sound Forge almost exclusively.

Subject:RE: Audio Drivers

Reply by: Iacobus

Date:1/31/2003 6:31:15 PM

MME is the precursor to WDM. Use WDM if you can; it's faster than MME in performance.

HTH,
Iacobus

Subject:RE: Audio Drivers

Reply by: pwppch

Date:1/31/2003 9:25:48 PM

Actually, a well written native MME Wave driver will beat the pants off of a WDM driver in performance. Remember, WDM drivers must have their Wave i/o emulated in software. The Kmixer and other OS components jump between the app and the driver.

Example: The Audigy only works at 48 kHz in hardware. In order for you to play at 44.1 the OS jumps in and resamples everything on the fly. Expensive.

For those that have the Echo hardware, the PureWave mode these drivers can run in, run circles around the WDM Wave Emulation mode.

Of course, a badly written driver will be bad no matter what type it is.

Peter

Subject:RE: Audio Drivers

Reply by: Iacobus

Date:2/1/2003 1:29:24 PM

Thanks for that clarification, Peter! Even a non-techie like me can learn something sometimes. :)

Iacobus

Subject:RE: Audio Drivers

Reply by: DKeenum

Date:2/1/2003 2:07:14 PM

I emailed edriol and they recomended the WDM drivers. They said it would give me lower latency. What do you think about that? BTW, thanks for the help.

Subject:RE: Audio Drivers

Reply by: pwppch

Date:2/1/2003 8:56:51 PM

They don't provide native Wave drivers as far as I know.

Like I said, it depends on the driver, but with the built in overhead of 30 ms for WDM drivers, I don't see how they could claim this.

Peter

Subject:RE: Audio Drivers

Reply by: Iacobus

Date:2/2/2003 10:01:23 AM

I know I've had very minor problems while using my Audiophile's ASIO drivers while recording digital audio; I usually get about a 500 ms offset while recording and it doesn't matter what latency it's set at. (I've tried them all.) WDM doesn't give a problem though.

Of course, this all may stem from the fact that the drivers I'm using are betas. (5.10.00.29x12) I've been meaning to try my USB Duo's ASIO drivers for comparison but I haven't gotten around to it yet.

Iacobus