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 Forum index » DIY Hardware and Software » Supercollider
Trouble with audio in Ubuntu 16.04; virus on support wiki?
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Digital Larry



Joined: Feb 19, 2013
Posts: 17
Location: Silicon Valley, CA

PostPosted: Fri Nov 25, 2016 12:12 pm    Post subject: Trouble with audio in Ubuntu 16.04; virus on support wiki? Reply with quote  Mark this post and the followings unread

Been goofing around with ChucK for an online course, had some issues with Wiimote and OSC and thought I'd look into SC instead as it seems to be somewhat more actively supported and perhaps a wider variety of UGens and less CPU load (which I think relates to my Wiimote problems in Chuck).

I started SC and here's what happened when I tried to boot the server:

Quote:

init_OSC
empty
compiling class library...
NumPrimitives = 679
compiling dir: '/usr/share/SuperCollider/SCClassLibrary'
compiling dir: '/usr/share/SuperCollider/Extensions'
pass 1 done
numentries = 781759 / 10851086 = 0.072
4973 method selectors, 2182 classes
method table size 11712592 bytes, big table size 86808688
Number of Symbols 11474
Byte Code Size 358455
compiled 319 files in 0.27 seconds
compile done
Couldn't set realtime scheduling priority 1: Operation not permitted
Help files scanned in 0.022796869277954 seconds
LID: event loop started
Class tree inited in 0.05 seconds
Welcome to SuperCollider 3.6.6. For help press Ctrl-D.
Couldn't set realtime scheduling priority 1: Operation not permitted
file "/home/gary/.local/share/SuperCollider/Help/scdoc_version" does not exist.
SCDoc: Indexing help-files...
SCDoc: Indexing old helpfiles...
Help files scanned in 0.045058012008667 seconds
SCDoc: Indexed 1310 documents in 0.81 seconds
booting 57110
jackdmp 1.9.11
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2014 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
could not initialize audio.
RESULT = 1
ERROR: server failed to start
For advice: [http://supercollider.sf.net/wiki/forums.html/ERROR:_server_failed_to_start]
booting 57110
jackdmp 1.9.11
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2014 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
could not initialize audio.
RESULT = 1
ERROR: server failed to start
For advice: [http://supercollider.sf.net/wiki/forums.html/ERROR:_server_failed_to_start]


"Operation not permitted" seems to indicate that I should run this as root, or maybe realtime was not enabled on this system. I am also trying to build SC onto the Planet CCRMA Fedora 24 image and we'll see how that goes.

When I try to send my browser to the help link:

http://supercollider.sf.net/wiki/forums.html/ERROR:_server_failed_to_start

I get a Virus warning from Norton, which is built into my Belkin router. It does not say anything specific about the nature of the problem.

So then there are 2 questions:

1) any specific audio debug strategy? I've gone through some steps of ALSA check and it seems OK, but I'm not certain whether I have Jack installed (too many things to remember them all). Audio does work on this PC for browser, Audacity, etc.

Quote:

gary@gary-S551LA:~$ cat /proc/asound/cards
0 [HDMI ]: HDA-Intel - HDA Intel HDMI
HDA Intel HDMI at 0xf7e1c000 irq 46
1 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0xf7e18000 irq 45


2) any awareness of a virus at the SC Wiki?

Thx,

DL
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Digital Larry



Joined: Feb 19, 2013
Posts: 17
Location: Silicon Valley, CA

PostPosted: Fri Nov 25, 2016 3:18 pm    Post subject: Reply with quote  Mark this post and the followings unread

Got it running on my Fedora system without any problem. Still curious...
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