[PD] Virtual Mixer for Telematic Music

[Rishabh Natarajan]

Hi Iain,

When trying to start pd-extended from command line with the '-channels 16'
argument, I get an error saying:

Error number -9998 opening portaudio stream
Error message: Invalid number of channels

I can't seem to figure out why this is happening and am not able to find
any sources on the internet that explain why this is happening. I had
started pd once before with some other arguments, but have since closed it
and opened it up again through the GUI, so I'm thinking the default flags
should've undone my last command line start?

Please advise.

Thanks,
Rishabh

On Sun, Apr 8, 2012 at 2:55 PM, Rishabh Natarajan <
rishabh.natarajan at gmail.com> wrote:

> @Iain: Yes, how silly of me, the crossfade is to avoid the clicks. I never
> thought of it that way. Hence the pleas to ignore my naivete. Thanks for
> sharing the patch with me. I shall go through it and I'm sure it will clear
> out a lot of things.
>
> @Colet Patrice: Hey, thanks for writing to me. Well, the reason I want to
> do it in pd is because I wanted to be able to switch routing so that I can
> move sound around however and wherever I want. I want to be able to switch
> functionality of the same set of sliders to control all sound, in all
> directions. Also, I wanted to incorporate other functions like latency
> meters and allowing for Q'ing to headphones depending on which mix one is
> currently working on in the mixer, or even independent of that actually. It
> should be fairly functional without having too much detail, simple because
> I'm pressed for time!
>
> Thanks,
> Rishabh
>
>
> On Sun, Apr 8, 2012 at 12:44 PM, Patrice Colet <colet.patrice at free.fr>wrote:
>
>> Hello Rishabh,
>>  you should be able to use jack for local and distant sound system,
>> no need for internal drivers through pd.
>> In both adc~ and dac~ each argument is the number of audio voice coming
>> from/to jack
>> eg: [adc~ 4 1 2 3] would output from left to right the inputs 4 1 2 3
>> from jack interface
>> but if sound processing is just about amplitude, you don't even have to
>> bother with pd (sorry pd-list ^^)
>> because jack mixer would be enough for that.
>>
>> for building a virtual mixer it's really easy in pd, it's just a slider
>> with default values connected to [dbtorms] for controling the amplitude
>> of a signal coming in [*~]'s left inlet by connecting it to right inlet
>> after a conversion from message to audio with the help of [line~]
>>
>>
>> [adc~ 1]
>> |
>> |[hslider]
>> | |
>> |[dbtorms]
>> | |
>> |[pack 0 10]
>> | |
>> |[line~]
>> | |
>> [*~]
>> |
>> [throw~ master]
>>
>> [catch~ master]
>> |
>> [dac 1]
>>
>> this simple example is mono, use [catch~ master-left] and [catch~
>> master-right] for retrieving two voices coming from [pan~],
>> all signals are mixed through [throw~] and [catch~] bus.
>>
>> Colet Patrice
>>
>> ----- Mail original -----
>> > De: "Rishabh Natarajan" <rishabh.natarajan at gmail.com>
>> > À: pd-list at iem.at
>> > Envoyé: Samedi 7 Avril 2012 19:57:20
>> > Objet: [PD] Virtual Mixer for Telematic Music
>> >
>> > Hi,
>> >
>> > I'm trying to build a virtual mixer in pd for telematic music.
>> > Telematic
>> > music is a genre of music where the musicians collaborate live but
>> > are
>> > situated in different locations (cities), over the internet.
>> >
>> > My mixer should be able to take in remote channels coming in through
>> > Jack
>> > and route to the local sound system and also, through some interface
>> > be
>> > able to take in local inputs and send out via Jack to the remote
>> > system.
>> >
>> > The questions I have are:
>> > 1. can I have 2 adc~ objects in one patch? So that I can switch the
>> > same
>> > set of faders to control either signals going to and coming from Jack
>> > or
>> > going to and coming from my local interface? if so, how do I achieve
>> > this?
>> > 2. If I need to be able to route sound over the internet via Jack and
>> > to
>> > and from my local system via an interface, how do I make pd use both
>> > Jack
>> > and the local interface (for example the coremidi on a mac) at the
>> > same
>> > time? This sort of ties in with the first question.
>> >
>> > My time to do all of this is really short and I am very new to pd.
>> > Any help
>> > with this would really, really be appreciated!
>> >
>> > Thanks,
>> > Rishabh
>> >
>> > _______________________________________________
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>> >
>>
>
>
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