Subject: Re: [linux-audio-dev] newcomer questions
From: Lance Blisters (geoff_AT_ugcs.caltech.edu)
Date: Fri Sep 28 2001 - 19:41:53 EEST
GDAM does have Acid-ic potential. There has been a lot of work on the
sequencing lately, while incomplete it is very promising and should be
able to support any features you are looking for. I'm not terribly
familiar with acid, i'd love to hear which features you find most
useful. Currently, gdam offers;
* cubase-style graphical pattern sequencing
* recycle-stlye loop dissection and sequencing
* control patterns or all buffers of one type
* different rendering and sorting methods - y axis can be
volume, pitch, pattern, buffer to play, etc
* different tools and shortcuts for tiling samples and importing loops
* hardware control support for triggering, etc.
* a sequence can be put through filters and ladspa plugins, and
synchronized with other gdam tools, such as mp3 turntables
there is lots of functionality, mostly inspired by people's
needs... lots of people were using midi keyboards to trigger
loopsa in a sampler. they would play the first note of the loop
freely, offbeat with existing loops. Then they would press the midi
key exactly on beat and hold it down to bring the loop in. This
required perfect timing or the loop would be out of sync, and they
would have to try and repress it on beat the appropriate time came.
also, if you had three loops playing you would be holding down three
different keys. some people would wedge the keys down with a piece
of card to free up their hands.
so gdam makes it fast to import loops and automatically stretch them
to match the tempo, then use 'hotkeys', midi keyboard, or any usb
human interface device to both a) toggle a perfectly locked loop on/off
b) trigger free play of the loop regardless of whether it is being looped.
you can even have the free-play loop be a different volume and pitch than
the locked loop... lots of melodies sound really good when counterpointed
with that same melody at 111% speed! (four half-steps up in pitch)
gdam is written in c with glib-style classes and objects, and gtk
for the interface. we would welcome help, especially on the sequencing
and loop playback... there are lots good features just waiting to be coded,
and we're always looking for good ideas.
unfortunately, lots of this hasn't made it into a release yet,
so you'll have to build it from cvs... not hard, but there are
more dependencies. development hosted by sourceforge, so anon
cvs checkout is simple. webpage at ffem.org/gdam/
-geoff
> Hi Everyone,
>
> I just joined the list and had a couple of general questions:
>
> 1. I'm an enthused user of Acid Music 3.0 Pro, but HATE booting to m$ to use it. What projects are currently under development to provide this sort of program to Linux users?
> 2. I'm a C++ programmer with a little bit of GTK experience. Are there any projects that I might be of some help on? I might also do some perl if someone twisted my arm.
>
> Thanks,
> Kevin Barnhart
> barnburnr_AT_linuxfreemail.com
>
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