[PD] portaudio compatibility with some ASIO drivers (Windows only)

Stefano Papetti stefano.papetti at univr.it
Wed Jul 1 16:21:14 CEST 2009

hi Hans-Christoph,

I found that in the svn version of portaudio (namely in pa_asio.ccp) the 
driver ReaRoute ASIO is not blacklisted anymore (as committed by Ross 
Bencina on June 16), so I think that it will be nice to re-compile pd 
against it. Do you think it's not reliable enough compared to the 
standard v19?

Anyway I'll give the nightly builds a try, thanks. That should improve 
general ASIO performance of already working devices.


Hans-Christoph Steiner ha scritto:
> Maybe its due to the version of ASIO in use?  I just upgraded the 
> build farm to use ASIO 2.2, so nightly builds of Pd-extended are using 
> that.
> .hc
> On Jun 30, 2009, at 2:53 PM, Stefano Papetti wrote:
>> Hello,
>> I noticed that pd (at least recent versions of both vanilla and 
>> extended) and other portaudio-based applications (e.g. Audacity) 
>> don't see some ASIO drivers: namely, the RME Fireface 800 and 
>> REAPER's ReaRoute ASIO drivers.
>> I found several posts in different forums around about both issues, 
>> and I've drawn the following conclusions:
>> - the RME ASIO driver simply doesn't work, and nobody actually knows 
>> why... However some people report to get ultra-low latencies (3ms) 
>> with the MMIO drivers. Moreover, even with the MMIO driver they can 
>> use the multi-channel capability of the RME only when set at 48000 Hz 
>> (but this is another story...). I will ask RME directly about these 
>> issues.
>> - the ReaRoute ASIO driver is blacklisted by portaudio (as of v19) 
>> and therefore discarded...
>> The latter is my most urgent problem because I need to route audio 
>> from pd to REAPER with the lowest possible latency/cpu load.
>> Please help!
>> Thanks,
>> S
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