[Rwp] different driver modes in reaper

Mon Apr 18 22:12:31 EDT 2016

Using WSAPI on a mid 2013 Macbook Air, running Windows 10.

As I recall, WSAPI never worked well for me in Win 7. I used to use WDM mode for built-in sound, though you had to match sample rates, and you still couldn't run with all that low of latency. It was just low enough to play, but still a bit sloppy. WSAPI is practically real-time.

Bryan

> On Apr 18, 2016, at 9:42 PM, Keith Hinton <keithint1234 at gmail.com> wrote:
> 
> Bryan, just curious, but what version of Windows are you presently
> using Reaper on in WASAPI mode? I'd guess Windows 10 or earlier. I'm
> happy to hear it works for you; WASAPI works flawlessly on this
> machine of mine as well.
> 
>> On 4/18/16, Bryan Smart <bryansmart at bryansmart.com> wrote:
>> True, and, since Apple is ditching analog audio I/O, I doubt it will ever be
>> fixed.
>> 
>> Bryan
>> 
>>> On Apr 18, 2016, at 8:46 PM, Patrick Perdue <patrick at perdue.audio> wrote:
>>> 
>>> You know what's kind of funny? Obviously, you'll get some cross talk with
>>> a combo mic/headphone jack like that, but it seems like the jacks/chips
>>> Apple use on all their stuff (iPhone, iPad, Macs) are some of the worst
>>> offenders. I have a junky low-end Acer Windows tablet with one of these
>>> combo jacks, and cross talk is almost, but not quite non-existent. With
>>> the same ear pods on my iPhone or Mac, it's noticeably much worse. The
>>> iStuff uses Cirrus Logic DAC's, while the cheap Acer uses an integrated
>>> Intel something-or-other. Of course, in this case, the D/A stage is not to
>>> blame.
>>> 
>>> Just an interesting thing.
>>> 
>>>> On 4/18/2016 8:04 PM, Bryan Smart wrote:
>>>> I’ve been doing this for a while. Built-in sound device on my Macbook Air
>>>> works in WSAPI mode with practically no latency. You can have junky
>>>> sequencing sessions with just the laptop, virtual MIDI keyboard, and
>>>> earbuds plugged in. I’d actually consider using the earbuds mic for
>>>> something, but the combo earbuds jack leaks sound from the earbuds back
>>>> in to the mic, so I still must plug in a dedicated mic to record a
>>>> vocal/voice over. Oh well. Can’t have it all.
>>>> 
>>>> Bryan
>>>> 
>>>> 
>>>>> On Apr 18, 2016, at 1:03 PM, Chris Belle <cb1963 at sbcglobal.net> 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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