[PD] ASIO for win NT/2K

Michael Iber music at chemie.fu-berlin.de
Thu Feb 21 16:42:49 CET 2002


This is brilliant!!!!!!
Will you publish your version? (I am afraid I don't have MSVC)
I would appreciate it.
Bravo,
Michael



At 18:24 19.02.02 -0500, you wrote:

>I compiled an ASIO version of PD using PortAudio v1.7 with the beta ASIO
>drivers and Steinberg's ASIO 2.0 SDK. The program compiled successfully
>using s_mac.c and s_portaudio.c with MSVC++ 6.0.
>
>Both audio input and output are working as tested on a DIGIGRAM VxPocket
>v2.0 PCMCIA audio card running on a Sony Vaio under win2k with the latest
>driver package from Digigram (v4.4c). I tested it with a microphone and
>monitor speakers.
>
>The software reports 12ms latency for each device: i.e. 24ms I/O latency.
>This corresponds with what I heard and is a significant improvement over
>the ~350ms latency reported when using the Microsoft Wave or DirectX
>drivers.
>
>Here's the PortAudio startup report:
>
>P:\pd\bin>pd
>MIDI: not yet implemented
>read/write
>PaASIO_QueryDeviceInfo: numDrivers = 1
>PaASIO_QueryDeviceInfo: InputChannels = 2
>PaASIO_QueryDeviceInfo: OutputChannels = 2
>PortAudio : possible sample rate = 32000
>PortAudio : possible sample rate = 44100
>PortAudio : possible sample rate = 48000
>----------------------------------
>PortAudio : minSize = 504
>PortAudio : preferredSize = 512
>PortAudio : maxSize = 2016
>PortAudio : granularity = 126
>PortAudio : User buffer size = 128
>PortAudio : ASIO buffer size = 512
>PortAudio : Minimum BufferOffset for Output = 0
>PortAudio : ASIOCreateBuffers with size = 512
>PortAudio : InputLatency = 572 latency = 12 msec
>PortAudio : OuputLatency = 572 latency = 12 msec
>
>To do: create a new file called s_nt_asio.c that includes the NT MIDI
>interfaces as well as the PortAudio calls from s_mac.c. Has someone done
>this already ? If not, I'll try and make it.
>
>Best regards,
>
>Mike Casey
>www.media.mit.edu/~mkc
>
>
>----- Original Message -----
>From: "Miller Puckette" <mpuckett at man104-1.ucsd.edu>
>To: "mark" <mark at junklight.com>
>Cc: "Matthew Nish-Lapidus" <mattn-l at rogers.com>; "PD List"
><pd-list at iem.kug.ac.at>
>Sent: Sunday, January 27, 2002 6:09 PM
>Subject: Re: [PD] ASIO drivers in windows
>
> > Hi all,
> >
> > There's a Pd "portaudio" interface (in s_mac.c and s_portaudio.c), and
> > portaudio supports ASIO in "beta"... see
> > http://www.portaudio.com/
> >
> > So in principle you can get Pd to talk to ASIO by just linking it all
> > toghether. I haven't tried this because I don't have any soundcards in my
> > Windows machine that support ASIO.

Michael Iber

http://www.iberspace.de
mailto://mail@iber-online.de





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