wdm / asio isssue

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worstcaseontario
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2011/07/23 09:46:51 (permalink)

wdm / asio isssue

 for whatever reason, i can track my instuments at lower latency using the wdm driver rather than asio on my ua-25 ex. this is not an issue, in fact i am well pleased with it's performance(tracking bass guitar with some soft-synth drums, and a few guitar rig instances , i can use the lowest possible buffers)
issue is this: if i close sonar in wdm mode, i get a driver error next time i open it.(driver does not support the current audio format...)
i can get wdm to work if i load the asio driver, then change it to wdm.
while this does not stop my show, i must wonder if there is something i did not set up properly, or if this is a known issue/ bug.
 
has this forum's wisdom any thoughts?

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    Jonbouy
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    Re:wdm / asio isssue 2011/07/23 17:23:04 (permalink)
    It seems to me there are some issues with Windows 7 64 bit and WDM drivers that I am not convinced are Sonars fault at all.

    I'm using an E-Mu card which is no go in WDM mode (partly to do with E-Mu's driver) but works a treat with the ASIO driver although like you I can get a lower latency if I switch from ASIO to WDM in the same session.

    Alas like you when I run Sonar again it reverts back to 16 bit so I sacrificed the small latency advantage for the stability of ASIO with Sonar.

    Stranger still I can run Reason with a 64 sample buffer using the onboard chip in WDM mode routed via SP/DIF to the E-MU card... go figure.

    Seems like a crap-shoot to me.



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    Keni
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    Re:wdm / asio isssue 2011/07/23 19:11:35 (permalink)
    Which build are you using? I am running Quickfix 246 as something got broke in build 255 and for me it made wdm/ks unavailable... so I can't use it (Not using ASIO here)...

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    AT
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    Re:wdm / asio isssue 2011/07/24 00:18:15 (permalink)
    Is your onboard soundcard using WDM?  If so, that can cause havoc and the error message you are getting.

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    lfm
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    Re:wdm / asio isssue 2011/07/24 02:10:48 (permalink)
    AT


    Is your onboard soundcard using WDM?  If so, that can cause havoc and the error message you are getting.


    Good point, but my guess is the reverse - if it's using ASIO.

    Disable any secondary soundcards in bios. Will probably save you a lot of other trouble too.
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    Lanceindastudio
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    Re:wdm / asio isssue 2011/07/24 03:16:17 (permalink)
    if any on board sounds is running, I agree, disable that and go from there-

    When I have driver errors in regards to a sound card, it is usually because more than one thing is trying to use a p[articular driver-

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    worstcaseontario
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    Re:wdm / asio isssue 2011/07/25 18:04:55 (permalink)
    sorry for the lag in getting back to this post, i'm having internet issues at home.
    the ua25-ex is the only enabled sound device on my system.
    Keni: i am using build 255 (or whatever the latest one is)
    jonbouy: it seems that our systems behave similarly. i always only used the asio driver, and got stable, if not extremely fast performance from my card, i only recently discovered the wdm driver could allow me to track my guitars with 2ms buffers. this was an exciting discovery and made a difference to my approach to tracking especially bass lines. when i first set up my tower i experimented with all the possible settings and the wdm option was crap. now it is great. something changed and the only thing i can think of is w7 service pack 1. don't know enough about these matters to make a firm link.
    anyroad, i dont find having to play with my settings a little too high of a price to cut my latency by about two thirds.
    thanks to all for their interest and replies

    sonar 8.5/x1/x2/x3pe/ableton live 8 suite    
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    Keni
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    Re:wdm / asio isssue 2011/07/25 20:56:00 (permalink)
    Try going back to build 246... There's an easy rollback built into the quickfix scenario...

    My wdm/asio issues first appeared with 255 and my driver has worked flawlessly since Sonar 1... (with no updates to this driver since a while before X1 - It is the current driver that SSL/Souindscape offers

    I'm fine ut to and including 246, but not with 255...

    Keni


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