Re: [Portaudio] Re: portaudio in Debian, license updates?
Let me say as a long time member of this list and user of Portaudio and
its proponent in many projects, there was a period of a year where this
project was a big time user of Ambien. It was asleep for the most
part. A few folks came along and woke it up.
Flex Radio depends heavily on PortAudio in its commercial offerings. I
shudder to think what would have been done without it. While the
support for WDM-KS is not complete, Flex Radio contributed back the
WDM-KS driver in a usable state. It has instabilities but it should be
possible to finish from there. I proposed its use for this commercial
offering and Eric Wachsmann of Flex has done a great job with using,
adding, and giving back the WDM-KS code to that which was in a stale and
unusable state for a long time.
Arve Knudsen has almost single handedly changed my view of PortAudio for
Linux.
I added PortAudio support for the Linux version of WSJT:
http://pulsar.princeton.edu/~joe/K1JT/index.htm
and helped it become an open source project supported on berlios. This
support includes support for ALSA, OSS, and Jack. It is an invaluable
tool in making this python, C, Fortran project a cross platform
offering. Essentially the same code runs on Windows, Linux, *BSD, and
soon on Mac because of PortAudio.
I have constructed a module for GnuRadio to support PortAudio because of
my experiences in support of WSJT. I hope that comes together in the
next couple of weeks:
http://www.gnu.org/software/gnuradio/ and http://comsec.com/wiki
and intend to add the same kind of PortAudio support for the DSP which
underlies the Flex Radio SDR in this project:
http://dttsp.sourceforge.net
We are doing this because of the RECENT forward motion in the support of
the *nix, MacIntosh computers and Coreaudio.
On the Linux offerings, I have seen none of the instability you
mention. I have used it on jack, alsa, and oss with great success.
As a regular user of Audacity, I would view it as a real turn off if
PortAudio support was deprecated in Audacity. It is my opinion that
while development on PortAudio has proceeded in fits and starts, it has
proceeded and with a bit more help, could easily congeal to a nice
form. We desperately need a cross platform audio API like this and
RtAudio is not it. It is my view IMNSHO that a better thing would be
for Audacity and other developers to stop whining and start helping. I
would strongly support a Debian compatible license but Ross and PA are
going to have a heck of a time tracking down all developers and getting
the signed pieces of paper needed.
KEEP PA IN AUDACITY.
Bob
Ross Bencina wrote:
Hi Guys
I'm the dev lead for PortAudio.
Matt Brubeck wrote:
Junichi Uekawa wrote:
Things like portaudio and MIDIshare never really arrived. (OK, I'm
exaggerating slightly - Doesn't Audacity use portaudio?)
Audacity does use portaudio. Portaudio isn't dead and gone, but
development is barely progressing. With portaudio-v19 audacity can
use jack.
There are numerous active commercial applications which depend on
PortAudio.. it is far from dead and gone. Quite naturally I believe it
to be a technically superior solution to RtAudio, primarily because
(last time I checked) RtAudio does not attempt to solve many of the
technical problems which PortAudio does.
Best wishes
Ross.
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