23 Aug
2005
23 Aug
'05
4:44 p.m.
Evening-
I was looking at starting a coding project for my work(Theaterical
Sound Designer) and one of the things I was looking at doing is adding a
playback engine to be used in a live situation. For this end I would
need an audio engine capable of simultaneous file playback across the
same or multiple audio interfaces, preferably using Jack. I was
wondering if there was a good engine out there that already existed to
accomplish this?
Would Like:
Just the engine, ability to program UI seperately.
Ability to control basic concepts like Volume and Pan
Possible Surround Output(5.1) and appropriate Pan implementation.
Ability to play multiple files simultaneously, outputting either to the
same interface or seperate interfaces
Jack Compatibility
Eventually I would love to be able to add things like LADSPA support and
such to this program. My goal is a program that I can use to program in
automation(Basic) in terms of Volume and Pan, and hopefully eventually
Automation in terms of the Plugins used. The Main Goal of the program
is to be used for playing Music and Sound Effects in Live Theater,
however it will also be used to organize paperwork and such so that
anything related to a production can be pulled up on the computer at any
given time.
I would also like to look into a good Midi Library, specificly for
sending Midi Control Messages out over an interface to control external
equipment.
And since i am pretty new to audio programming, and pretty much can be
considered a newcomer to programming in general I would love any
suggestions on reading material for programming for audio, as I would
imagine there are a few accepted and unaccepted tricks to keep a low
latency system up, but also for minimizing HD load times and
prebuffering clips in memory to allow for faster access etc. I doubt I
will be using this right off hand, I am sticking to programming easier
things for a reason for right now;)
Seablade
23 Aug
23 Aug
6:14 p.m.
On Aug 23, 2005, at 20:45, Thomas Vecchione wrote:
Evening-
I was looking at starting a coding project for my work(Theaterical
Sound Designer) and one of the things I was looking at doing is adding
a playback engine to be used in a live situation. For this end I
would need an audio engine capable of simultaneous file playback
across the same or multiple audio interfaces, preferably using Jack.
I was wondering if there was a good engine out there that already
existed to accomplish this?
have a look at the linux sampler, http://www.linuxsampler.com/.
it provides streaming from disc, jack output and the engine is
separated from the (qt) gui.
HTH
Jelle
6:47 p.m.
Hello Thomas,
what about giving SuperCollider a try?
you can use either just the engine of that, or both the language and
the engine.
sincerely,
Marije
Tuesday, August 23, 2005, 8:45:40 PM, you wrote:
TV> Evening-
TV> I was looking at starting a coding project for my work(Theaterical
TV> Sound Designer) and one of the things I was looking at doing is adding a
TV> playback engine to be used in a live situation. For this end I would
TV> need an audio engine capable of simultaneous file playback across the
TV> same or multiple audio interfaces, preferably using Jack. I was
TV> wondering if there was a good engine out there that already existed to
TV> accomplish this?
TV> Would Like:
TV> Just the engine, ability to program UI seperately.
TV> Ability to control basic concepts like Volume and Pan
TV> Possible Surround Output(5.1) and appropriate Pan implementation.
TV> Ability to play multiple files simultaneously, outputting either to the
TV> same interface or seperate interfaces
TV> Jack Compatibility
TV> Eventually I would love to be able to add things like LADSPA support and
TV> such to this program. My goal is a program that I can use to program in
TV> automation(Basic) in terms of Volume and Pan, and hopefully eventually
TV> Automation in terms of the Plugins used. The Main Goal of the program
TV> is to be used for playing Music and Sound Effects in Live Theater,
TV> however it will also be used to organize paperwork and such so that
TV> anything related to a production can be pulled up on the computer at any
TV> given time.
TV> I would also like to look into a good Midi Library, specificly for
TV> sending Midi Control Messages out over an interface to control external
TV> equipment.
TV> And since i am pretty new to audio programming, and pretty much can be
TV> considered a newcomer to programming in general I would love any
TV> suggestions on reading material for programming for audio, as I would
TV> imagine there are a few accepted and unaccepted tricks to keep a low
TV> latency system up, but also for minimizing HD load times and
TV> prebuffering clips in memory to allow for faster access etc. I doubt I
TV> will be using this right off hand, I am sticking to programming easier
TV> things for a reason for right now;)
TV> Seablade
--
Best regards,
nescivi mailto:nescivi@gmail.com
25 Aug
25 Aug
12:08 a.m.
Ok so in my search for a good Widget library to program this with I
realised something...
I have a thing for eye candy;)
That being said I am wondering if there is a good widget library out
there that I could create 3d Widgets and use that would take advantage
of hardware acceleration if present? Or if there is a better way to do
this?
Currently I am planning on using blender to create the various 3D
objects needed(Sliders, Buttons, etc) but I am looking to keep things
themeable in this program, I am aiming to create a polished looking
product with enough eye-candy to make it look nice, but not overboard,
thus I am not sure the best way to do this is to use 3d objects, I am
just not very good at grraphics persay and that is the easiest way for
me to create nicer looking graphics to use in widgets. I suppose I can
render a shot down to a 2d image, but then I am still looking for a good
widget library that is easily customizeable.
Heh forgive the somewhat newbie questions on the topic, just havent been
able to find much information on the subject yet in my googling(Or
webcrawlering, or altavistaing, etc...)
Seablade
Webcrawlering?
1:11 a.m.
On 8/24/05, Thomas Vecchione <seablade(a)softhome.net> wrote:
Ok so in my search for a good Widget library to
program this with I
realised something...
I have a thing for eye candy;)
That being said I am wondering if there is a good widget library out
there that I could create 3d Widgets and use that would take advantage
of hardware acceleration if present? Or if there is a better way to do
this?
You might try FLTK (Fast Light Tool Kit) -- it's a C++ toolkit that is
quite easy to use and has builtin support for OpenGL (FLTK was
developed at Digital Domain, I think, for creating SFX plugins). FLTK
also has a small memory footprint and is cross-platform.
http://www.fltk.org/
-- Brett
--
Programmer by Day, Guitarist by Night
http://www.chapelperilous.net
http://www.alhazred.com
http://www.revelmoon.com
26 Aug
26 Aug
10:20 a.m.
On Wednesday 24 August 2005 22:09, Thomas Vecchione wrote:
That being said I am wondering if there is a good
widget library out
there that I could create 3d Widgets and use that would take advantage
of hardware acceleration if present? Or if there is a better way to do
this?
I don't know if C++ is part of your plans, but I've been extremely happy with
Qt. Fully themeable, extensively documented, cross-platform (as of the 4.0
release, M$ support is available under GPL, as well as Mac OSX and lots of
Unices). Highly recommended.
Cheers!
|-------------------------------------------------------------------------|
| Frederick F. Gleason, Jr. | Director of Broadcast Software Development |
| | Salem Radio Labs |
|-------------------------------------------------------------------------|
| We are confronted with insurmountable opportunities. |
| -- Walt Kelly "Pogo" |
|-------------------------------------------------------------------------|
10:12 a.m.
On Tuesday 23 August 2005 14:45, Thomas Vecchione wrote:
Just the engine, ability to program UI seperately.
Ability to control basic concepts like Volume and Pan
Possible Surround Output(5.1) and appropriate Pan implementation.
Ability to play multiple files simultaneously, outputting either to the
same interface or seperate interfaces
Jack Compatibility
You might want to check out the Core Audio Engine (CAE) component of
Rivendell. Basically, a completely abstract audio file player and mixer,
controlled by ASCII string commands sent via TCP/IP. You can find the design
document at:
http://www.salemradiolabs.com/images/core-engine-protocol-091.pdf
At present, this supports JACK, ALSA (up to eight simultaneous devices) and
AudioScience HPI.
You may also be interested in Rivendell itself, which already does many of
these automation operations:
http://www.salemradiolabs.com/rivendell/
Cheers!
|-------------------------------------------------------------------------|
| Frederick F. Gleason, Jr. | Director of Broadcast Software Development |
| | Salem Radio Labs |
|-------------------------------------------------------------------------|
| No woman can endure a gambling husband, unless he is a steady winner. |
| -- Lord Thomas Dewar |
|-------------------------------------------------------------------------|
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days inactive
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days old
linux-audio-dev@lists.linuxaudio.org
6 comments
5 participants
participants (5)
-
Brett W. McCoy -
Fred Gleason -
Jelle Herold -
nescivi -
Thomas Vecchione