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audiodef
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PostPosted: Thu May 03, 2012 4:25 pm    Post subject: Reply with quote

I've run into a Block related to lv2 vs. lv2core and have posted here.
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McGruff
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PostPosted: Sun May 13, 2012 4:47 pm    Post subject: Reply with quote

Ardour-irc: control ardour with an infra red remote..

Not part of the pro-audio overlay but I thought I should post it here.
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darkbasic
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PostPosted: Mon May 14, 2012 12:49 pm    Post subject: Reply with quote

media-sound/jack-audio-connection-kit does not build, even without the pam use flag.

[ebuild R *] media-sound/jack-audio-connection-kit-2.9999::proaudio USE="alsa dbus ieee1394 mixed -classic -debug -doc -freebob -pam%"

[ 23/302] cxx: common/JackMessageBuffer.cpp -> build/common/JackMessageBuffer.cpp.1.o
../common/JackMessageBuffer.cpp: In member function ‘int Jack::JackMessageBuffer::SetInitCallback(void (*)(void*), void*)’:
../common/JackMessageBuffer.cpp:198:1: warning: label ‘error’ defined but not used
../common/JackTools.cpp: In function ‘void Jack::BuildClientPath(char*, int, const char*)’:
../common/JackTools.cpp:285:28: error: ‘ADDON_DIR’ was not declared in this scope
Waf: Leaving directory `/var/tmp/portage/media-sound/jack-audio-connection-kit-2.9999/work/jack-audio-connection-kit-2.9999/build'
Build failed
-> task in 'serverlib' failed (exit status 1):
{task 19985488: cxx JackTools.cpp -> JackTools.cpp.1.o}
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keenblade
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PostPosted: Mon May 14, 2012 2:07 pm    Post subject: Reply with quote

darkbasic wrote:
media-sound/jack-audio-connection-kit does not build, even without the pam use flag.

[ebuild R *] media-sound/jack-audio-connection-kit-2.9999::proaudio USE="alsa dbus ieee1394 mixed -classic -debug -doc -freebob -pam%"
...

darkbasic, I checked and the failure comes from "mixed" useflag. If you disable it, jack will build fine.
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darkbasic
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PostPosted: Mon May 14, 2012 2:15 pm    Post subject: Reply with quote

Unfortunately I need the mixed use flag because of wineasio.
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audiodef
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PostPosted: Tue May 15, 2012 12:04 am    Post subject: Reply with quote

darkbasic wrote:
media-sound/jack-audio-connection-kit does not build, even without the pam use flag.

[ebuild R *] media-sound/jack-audio-connection-kit-2.9999::proaudio USE="alsa dbus ieee1394 mixed -classic -debug -doc -freebob -pam%"



Any luck if you also enable the classic use flag?
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darkbasic
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PostPosted: Tue May 15, 2012 8:36 am    Post subject: Reply with quote

No.
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audiodef
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PostPosted: Tue May 15, 2012 1:34 pm    Post subject: Reply with quote

darkbasic wrote:
No.


What if you use the classic flag but not the dbus flag?
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darkbasic
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PostPosted: Tue May 15, 2012 2:53 pm    Post subject: Reply with quote

The same.
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woelfl
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PostPosted: Fri May 25, 2012 7:27 pm    Post subject: media-sound/mixxx undeclared dependancy Reply with quote

ok, i just went on to build media-sound/mixxx-1.10.0::proaudio, and it reported an unmet dependency during emerge, which was obviously not declared in ebuild etc. --- the problematic dependency is media-libs/fidlib, which anyway seems like to be a prerequisite for mixxx one way or the other... now, am i whining about this in a right group or thread, i don't know... but, anyway, if not, if i'm a bit off-track, please point me to the people i should report this to...

thanks!
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McGruff
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PostPosted: Fri May 25, 2012 7:37 pm    Post subject: Reply with quote

Can you emerge media-libs/fidlib?
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woelfl
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PostPosted: Fri May 25, 2012 7:48 pm    Post subject: Reply with quote

yeah, no problem building media-libs/fidlib. also, no problem when emerging mixxx after that. but now I'm having random crashes of both mixxx and chromium... let me get back on this topic, i have to at least isolate when/why this happens...
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keenblade
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PostPosted: Fri May 25, 2012 8:11 pm    Post subject: Re: media-sound/mixxx undeclared dependancy Reply with quote

woelfl wrote:
ok, i just went on to build media-sound/mixxx-1.10.0::proaudio, and it reported an unmet dependency during emerge, which was obviously not declared in ebuild etc. --- the problematic dependency is media-libs/fidlib, which anyway seems like to be a prerequisite for mixxx one way or the other... now, am i whining about this in a right group or thread, i don't know... but, anyway, if not, if i'm a bit off-track, please point me to the people i should report this to...

thanks!

Thanks. Missing fidlib dependency is added and mixxx-1.10.0 is updated in overlay.
And you are in the right group.
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woelfl
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PostPosted: Fri May 25, 2012 9:26 pm    Post subject: Reply with quote

glad to be of help, although now i have some really unpredictable chromium crashes while mixxx is running. also, mixxx crashes almost constantly when i try to mix another track into the playing one. this i have not successfully isolated yet... this seems to be quite enticing... :) believe me, it crashes really randomly, i don't know if it has something to do with compiz, or pulseaudio, or whatever...

anyway, i just had to brute-force reboot my system, i.e. it ate up all the RAM and swap, to the point of making the system completely unresponsive with no other option but pressing the power button. and this is linux i'm talking about, not fucking windows!

oher than that, it's really an impressive piece of software. visually and functionally, it's what NI traktor should always have been.

BUT, I MEAN, WHAT THE FUCK?!? why would you need *all* of those extra QT libraries?!? couldn't it be done with i.e. opengl for gui and sdl or jack for audio instead of making all those insane complications with QT?!?!?

isn't this what opensource should be --- making shit that's as slick and as cross-platform as possible?

is there any sense in making shitty software, after we all saw what e.g. steinberg did lately, last 4-5 years..?

i mean, come on, please... i'll give a hand or a foot, or two, three, or four, if needed, but lets not make shitty open source audio software, please!!!

please redirect me to the relevant group if my rant here is inappropriate...
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keenblade
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PostPosted: Sat May 26, 2012 8:49 am    Post subject: Reply with quote

woelfl wrote:
glad to be of help, although now i have some really unpredictable chromium crashes while mixxx is running. also, mixxx crashes almost constantly when i try to mix another track into the playing one. this i have not successfully isolated yet... this seems to be quite enticing... :) believe me, it crashes really randomly, i don't know if it has something to do with compiz, or pulseaudio, or whatever...

anyway, i just had to brute-force reboot my system, i.e. it ate up all the RAM and swap, to the point of making the system completely unresponsive with no other option but pressing the power button. and this is linux i'm talking about, not fucking windows!

Pulseaudio and specially compiz are known to be problematic and unstable. Try to disable some plugins for compiz or try another DE or WM. I really like compiz, but its future is unknown and leads to hard locks that need reboot. Anyway, also you can try mixxx-9999.ebuild in overlay. It is a live ebuild that pulls the latest development which may fix some of your problems.
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audiodef
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PostPosted: Sat May 26, 2012 3:16 pm    Post subject: Reply with quote

woelfl, please see my "Pro audio on Gentoo" link in my sig. You really want to make sure your system is tweaked as well as possible for audio, including using lightweight desktops/window managers and not running non-audio programs while doing serious audio.
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darkbasic
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PostPosted: Sat May 26, 2012 3:22 pm    Post subject: Reply with quote

By the way, I just tried linux 3.4.0-rt7 + rtirq and it works very well.
The dark days are gone :lol:
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woelfl
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PostPosted: Sun May 27, 2012 11:31 am    Post subject: Reply with quote

keenblade: thanks for pointing that out! I haven't thought of that as mixxx didn't look gfx-intensive, so my "maybe it's compiz" suspicion didn't get triggered right away. anyway, I always have a few extra user accounts for things which don't play well with compiz. I'll try it without pulseaudio and with a plain vanilla wm.

audiodef: you saved me a lot of googling and trial/error mishaps with compiling that article! and for that sir, you have my thanksⁿ, where n→∞.

cheers!
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audiodef
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PostPosted: Sun May 27, 2012 3:28 pm    Post subject: Reply with quote

darkbasic wrote:
By the way, I just tried linux 3.4.0-rt7 + rtirq and it works very well.
The dark days are gone :lol:


I have not even bothered with realtime hacks for several kernel versions now. I've been using gentoo-sources + Pappy's Kernel Seeds - and that's for my setup that runs Rosegarden + Ardour in sync with lots of plugins.
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audiodef
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PostPosted: Sun May 27, 2012 3:29 pm    Post subject: Reply with quote

woelfl wrote:


audiodef: you saved me a lot of googling and trial/error mishaps with compiling that article! and for that sir, you have my thanksⁿ, where n→∞.



That's what I wrote it for. :D
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PostPosted: Fri Jun 01, 2012 11:54 am    Post subject: Reply with quote

Here I am again with a few questions...

1. I read that article (audiodef.com), and set up already most of the stuff in question on my system according to the instructions. But now I've come across a thing not mentioned much there... I have a Focusrite Saffire PRO 24DSP (ieee1394). I know FFADO's support for it is still experimental, but I'd really like to give it a try, and if I find my way around the stuff, I'd very much like to help out the FFADO people to change that status from 'experimental' to 'working' ;) The question: is there any extra/special stuff I have to do around libffado, or do I just emerge it and that's it? What next, any tips/tricks for setting that up with jack..?

2. I went crazy quite some years ago and made an analog Synthacon VCF on a breadboard. Then I got a bit dissapointed in analog and got intrigued by BLIT synthesis, as described in this Stanford paper. Then I went completely offroad for the past few years, almost forgot all about that. And now recently I feel like tinkering with that stuff again. My question here is, due to the fact that I lack some foundations on audio programming, any suggestions on a good starting point (book/article/tutorial) to get into real-time audio synthesis/processing (C preferably)? Like some kind of a simple framework that does audio I/O, so I could play around with sample-based generation/processing, e.g. generate a sound as a function of time etc... I've been considering SDL's audio functions as a first hand solution to this, but I'm worried if there could be any problems when implementing a modular audio path on top of it..? Anyway, my ultimate goal is something like writing a program in C that outputs a complete song (have you seen this? OK, what I have in mind would be quite a bit more complex, but the idea is pretty much the same). And also, of course, on the way I'd very much like to help fill a few pro-audio gaps in opensource...

Thanks!
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darkbasic
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PostPosted: Fri Jun 01, 2012 12:42 pm    Post subject: Reply with quote

I have a Saffire Pro 40, it works like a charm...
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audiodef
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PostPosted: Fri Jun 01, 2012 2:10 pm    Post subject: Reply with quote

woelfl wrote:

1. I read that article (audiodef.com), and set up already most of the stuff in question on my system according to the instructions. But now I've come across a thing not mentioned much there... I have a Focusrite Saffire PRO 24DSP (ieee1394). I know FFADO's support for it is still experimental, but I'd really like to give it a try, and if I find my way around the stuff, I'd very much like to help out the FFADO people to change that status from 'experimental' to 'working' ;) The question: is there any extra/special stuff I have to do around libffado, or do I just emerge it and that's it? What next, any tips/tricks for setting that up with jack..?


Just to get it up and running should be the same for all FFADO devices. If you follow the basic setup instructions and it doesn't work, post back and we'll see what we can figure out.

woelfl wrote:

2. I went crazy quite some years ago and made an analog Synthacon VCF on a breadboard. Then I got a bit dissapointed in analog and got intrigued by BLIT synthesis, as described in this Stanford paper. Then I went completely offroad for the past few years, almost forgot all about that. And now recently I feel like tinkering with that stuff again. My question here is, due to the fact that I lack some foundations on audio programming, any suggestions on a good starting point (book/article/tutorial) to get into real-time audio synthesis/processing (C preferably)? Like some kind of a simple framework that does audio I/O, so I could play around with sample-based generation/processing, e.g. generate a sound as a function of time etc... I've been considering SDL's audio functions as a first hand solution to this, but I'm worried if there could be any problems when implementing a modular audio path on top of it..? Anyway, my ultimate goal is something like writing a program in C that outputs a complete song (have you seen this? OK, what I have in mind would be quite a bit more complex, but the idea is pretty much the same). And also, of course, on the way I'd very much like to help fill a few pro-audio gaps in opensource...



Visit electro-music.com, look around, introduce yourself, and ask this question there. These people are crazy mad into DIY and I think you'll get a response. It is an active community, but it might be a day or three before you get an answer. I've been a member there for years and I can tell you these people are very smart with DIY synth stuff.
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PostPosted: Fri Jun 01, 2012 11:03 pm    Post subject: Reply with quote

Oh BTW. just to let you know, I tried mixxx-1.10.0 on a brand new&clean user account, no fancy shit, only windowmaker, with pulseaudio disabled, and audio output through jack->alsa. It crashed nevertheless every time after a few minutes with a 'Broken Pipe', and then finally once locked up the whole system to the point of pressing the power button. I'm now emerging the mixxx-9999 to see if it's any better...

cheers!
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PostPosted: Sat Jun 02, 2012 12:19 am    Post subject: Reply with quote

I have been mixing now for almost an hour with mixxx-9999 branch (it declares itself as 1.11.0-alpha2), even running under compiz, and had no crashes. The new waveform display is absolutely fabulous, especially the scaling of separate bands when using EQ. The only bug I've found so far is that the files stick to the cursor after being dropped onto a deck from the navigator, but that can be remedied with just a click in the file navigator.

UPDATE: just caught it crashing due to an enormous memory leak (800MB+), while looping one track and mixing another in... but this seems to be traceable/reproducible, unlike the random crashes and lockups I had with the previous version, and not even nearly as irritating as having to power cycle the machine...
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