[PD] Pd - DSP in a web app

[Andrew Turley]

Those are both good reads. The "Web Audio! All Aboard" article is
pretty inspiring.

As for running Pd on a server, if the user's don't need to share data
(for example, if you are streaming the results of their patches back
to them) you could run one instance of Pd per user. That way one user
couldn't kill audio for everyone.

In most of the work I've done the web UI interacts with Pd patches,
but it doesn't actually send patches, so to the extent that I trust my
own patching ability, I can feel fairly certain that my instance of Pd
won't crash. I guess I assumed that with the sequencer that's the type
of thing you would be doing.

andy

On Tue, Mar 29, 2011 at 11:00 AM, Pierre Massat <pimassat at gmail.com> wrote:
> I think you should all read this:
> https://wiki.mozilla.org/Audio_Data_API
>
> and this:
> http://weblog.bocoup.com/web-audio-all-aboard
>
> I believe it only works in Firefox 4 at the moment.
>
> If i wanted to use Pd to generate sound for a web application, i'd have to
> keep an instance of Pd running on the server continuously, right? And keep
> all the patches i need open? Which means that if any patch crashes Pd
> there'll be no sounds anymore?
>
> Pierre
>
>
>
> 2011/3/29 Andy Farnell <padawan12 at obiwannabe.co.uk>
>>
>> Sometimes you guys make me want to shout with
>> happiness. Dont stop the rock.
>>
>> On Tue, 29 Mar 2011 09:45:26 -0400
>> Andrew Turley <aturley at acm.org> wrote:
>>
>> > A few people (myself included) have built web UIs that control PD
>> > patches that run on a server. The technique I've used involves an http
>> > server that acts as a gateway, transforming http requests into OSC
>> > messages which are then sent to PD patches. My blog has some info
>> > about some of my experiments:
>> > http://www.pillowsopher.com/blog/
>> >
>> > I've also been looking at wrapping libpd
>> > (http://gitorious.org/pdlib/pages/Libpd) in a web server (maybe
>> > writing a node.js binding?) and using that to generate audio based on
>> > data from a web browser.
>> >
>> > andy
>> >
>> > On Tue, Mar 29, 2011 at 8:07 AM, Pierre Massat <pimassat at gmail.com>
>> > wrote:
>> > > Hi all,
>> > >
>> > > I've been toying with some new HTML tags (canvas and audio), in a an
>> > > attempt
>> > > to build a web app that would work as a simple sequencer. Although
>> > > canvas is
>> > > great, i'm not fully satisfied with the audio tag. I was wondering, is
>> > > there
>> > > a way i could use Pd as a sound engine in a web application? Can it
>> > > run on a
>> > > server? Sorry if this is a silly question...
>> > > There was a discussion a few months back about a project calld WebPd.
>> > > Anybody knows if it's been developped any further?
>> > >
>> > > Cheers!
>> > >
>> > > Pierre
>> > >
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>> --
>> Andy Farnell <padawan12 at obiwannabe.co.uk>
>>
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