[Rwp] different driver modes in reaper

Tue Apr 19 07:24:06 EDT 2016

Well wonders will never cease again.
The audiobox USB is the big winner here with wasapi in exclusive polled 
mode.

Wit aASIO if I go below 256 I get crackling and the steinberg which 
technically has the better hardware and is pretty much a better 
interface since it support 192 khz but I guess they've got this class 
compliant stuff down to a tea now because I can set the presonus down to 
32 buffers and it rocks feels just like hardware like I was playing my 
digital piano with no drop-outs or crackling and such.
Very impressive for an inexpensive  USB device,
but I guess that polling allows
it to flip flop that USB and share bandwidth, have to go read about that.
USB 2 is not by-directional natively,
but going in to that polled mode really turned on the gas.
Now I can run the steinberg in wasapi mode but only in the shared modes, 
and it's sluggish, like wasapi used to be.
I don't think sonar has access to the polled and exclusive modes like 
reaper does it's just a generic wasapi mode.
Poor old primitive sonar, but I still love her, she's still queen of midi.
But I'm just not believing the kind of performance I'm getting from USB 
with wasapi exclusive polled mode I didn't think this was possible with USB.
Well,
Gianluca,
if you're monitoring this thread are you running your delta card with 
ASIO or wasapi to get your good performance?

On 4/18/2016 12:12 PM, Patrick Perdue wrote:
> WASAPI under Windows 7 is interesting. It works great with extremely 
> low latency with some devices, completely not at all with others, even 
> on the same system. True, it is much more reliable on Windows 10, 
> but... well... still not sure I like Windows 10 in general. I have it 
> on a "don't care" tablet and a virtual machine to play with for now, 
> but, the time for buying a new DAW is at hand, and Sky Lake processors 
> will soon lose the ability to run fully patched Windows 7, and Katy 
> Lake won't run Windows 7 at all, so I guess I'll have to give in at 
> some point... BLEH!
>
> Yep, it's like XP all over again. I know this thing to be true.
>
> On 4/18/2016 1:03 PM, Chris Belle wrote:
>> Well wonders will never cease.
>> I think with windows 10 we've finally got something approaching note I
>> said approaching core audio low latency with junky internal devices.
>> Just took wasapi for a spin,
>> and it works better on this machine than my nice steinberg interface, I
>> think I'm going to go sit in the corner and cry, ha.
>> But serious now, this is great, it means you can now do casual things
>> with the onboard hardware and work at low latencies, and that's not a
>> reason to be trying to do all yourstudio stuff like that because plenty
>> of reasons not to record with those little 8th inch jacks for pro stuf,
>> and the internal realtech device is hardy a pro device, but mixing on
>> the bus, or throwing together some casual midi tracks, this will make it
>> nicer to do such things in windows.
>> finally,
>> wasapi was in windows 7 but it had lots of latency.
>> so I didn't solve my problem yet, but I did get a couple candy drops for
>> upgrading to windows 10 so hey,
>> hurray for wasapi how ever far it get's us.
>> Now I'm really curious since I think these realtech cards will actually
>> support up to 96k and 24 bit if it will actualy record like that does
>> reaper give a round trip latency like sonar does anyplace?
>> somewhere in the audio device
>> dialogue?
>> It says 0 latency in there when you are setting your buffer size, but it
>> can'treally be that.
>> There's always some since any audio system is a buffered system.
>> but I took out everything and it keeps putting 32 back in there.
>> so if we're really getting 32 buffers under wasapi,
>> and if it's buffered similar to asio that's prety impressive for a
>> garden variety internal card.
>> Don't make the mistake like I did of picking exclusive mode, and
>> especially if you only have one sound card in the system,
>> your speech will go away and you might have to do sumersaults to get it
>> back.
>> Luckily, I have lots of devices around here, every blindy needs to keep
>> around some class compliant devices for this sort of issue,
>> I pulled a good one the other day I was gonna disable the intel sound
>> for the
>> high definition audio that comes on most display chips these days, you
>> don't need it and it's best not to be taking up resources with an audio
>> driver you'll probably never use.
>> But I got in a hurry and disabled the main sound card on my wife's 
>> laptop,
>> so luckily I got speech going again with good old narrator and a thumb
>> drive like class compliant USB sound card.
>> anything will work, like logitech headphones, or USB speakers, so long
>> as they're class compliant.
>> Well, fun times again.
>>
>>
>> On 4/18/2016 11:19 AM, Chris Belle wrote:
>>> Well, I tried out another USB interface I have here, and also the
>>> steinberg in sonar, and well, I think that for what ever reason, the
>>> audio system on this machine is dogging down in windows 10.
>>> How ever, on my explorations, I've discovered somem interesting things.
>>> I didn't think reaper really supported wdm as an option,
>>> but when I was testing the presonus audiobox USB, it showed up, and lo
>>> and behold, it works like sonar does with class compliant devices now,
>>> and
>>> you're able to change buffer sizes and such in a really accessible way.
>>> Now wdm I think with class compliant devices is usually limited to
>>> 44.1 or 48k depending, and 16 bit, so I usually don't bother with it
>>> you get better results with asio anyway,
>>> and it's usually more stable, and generally a more professional
>>> system, but it's nice to see that reaper now allows this sort of
>>> support for other driver modes.
>>> Just for giggles, I'm going to see if it shows up for the internal 
>>> card.
>>> The other reason I'm interested in this generic mode of wdm is that
>>> the asio pannel in the audiobox USB didn't show a thing with NVDA so
>>> I'm going to have to try it with another screen reader,
>>> because I can't change a thing in there, and  it's set to some
>>> ridiculously relaxed place llike 512 or 1024 from the way it acts.
>>> Fun times.
>>>
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>>
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