I realise that the original thread may have been more of a focus on
Kernel level audio software, rather then user space audio software,
however the old school clunky XForms UI were classic from back in those
days.
Found some screen shots of the dynamic audio software :
https://web.archive.org/web/20001028203345/http://www.cse.unsw.edu.au/~flatmax/dynamic/dynamicScreen.html
On 2/2/22 08:14, Matt Flax wrote:
Back in 1999 and just before it was the crossover between ALSA and OSS.
I remember getting help from mailing lists as a newbie, just making
your first sound using C/C++ was difficult back then !
I don't know if this is the type of thing you are after, but this was
my developer focus back in those days ....
I produced two software packages which were very experimental and not
heavily used by others, you can see their original pages here (called
projects jumbled and dynamic) :
https://web.archive.org/web/19991104182532/http://www.cse.unsw.edu.au/~flatmax/dynamic/jumbled/jumbled.html
https://web.archive.org/web/19991104155359/http://www.cse.unsw.edu.au/~flatmax/dynamic/dynamic.html
Interestingly it may have been using OSS ? I can't quite remember.
The original "jumbled" software was a real time CD to MIDI wavetable
player. The big idea was to play your CDs streaming through the AWE
32's RAM wavetable synthesiser. You could apply MIDI hardware effects,
you can actually still see the keyboard controls :
https://web.archive.org/web/20000416211019/http://www.cse.unsw.edu.au/~flatmax/dynamic/jumbled/jumbledCommands.html
It worked quite nicely, except for the fact that the RAM front side
bus was too slow to pipe 44100 Hz CD audio through the MIDI's RAM.
This gave the system a looping effect, where the audio playback would
loop a few times before being reloaded with the next block of audio
from the CD. The looping gave it it's name "jumbled". You could
trigger a few MIDI keys and get the CD's audio played back at
different pitches and also overly the AWE 32's effects.
The next project was "dynamic" it simplified things to playing CDs
direct to the sound card. You can also see the sunsite.unc.edu
listing, with a sample mp3 up there. Project dynamic was unique in
that it had backwards blocking mode - where blocks of audio were read
from CD backwards, and also a reverse mode, where the blocks of audio
were reversed before being played.
http://www.ibiblio.org/pub/Linux/apps/sound/cdrom/project.dynamic.lsm
Matt
On 25/1/22 19:09, Philip Rhoades wrote:
People,
I am just a regular user of Linux audio but I am interested in the
history of how software was developed and what problems they were
meant to solve on Linux eg OSS, ALSA, Jack etc and more recently
PipeWire.
Is there such a documented history already in existence on the web
somewhere? (ie NOT a HOWTO) - that would be intelligible to non-audio
professionals?
I am interested in learning and understanding more about audio and
perhaps making better use of my system (Fedora 34 + Wayland soon to
be updated to 35).
Thanks,
Phil.
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