Hi everybody,
SpiralSynthModular 0.2.0 is now availible for you to play with, the
changes are much bigger than this little changelog suggests ;)
Audio engine rewritten to be multithreaded
Jack support via the JackPlugin
--Realtime commandline option (as root) runs ssm audio in SCHED_FIFO
LADSPA plugin much improved with built in GUI generator
App help added with Helptext for all of the plugins
One to many connections means the splitter plugin is now redundant
Numerous fixes, additions and GUI improvements
http://sourceforge.net/projects/spiralmodular/http://www.pawfal.org/Software/SSM/
Happy new year!
dave
Paul,
I've done a bunch of work over the last few days with a problem I was
experiencing using Rosegarden to play MIDI and then receive and record
the audio from external sound sources in Ardour.
First, yes, it really works, and actually works pretty nicely. Jack,
Ardour and Rosegarden are all playing nicely together.
However, I have found that:
1) There is a severe timing problem when using the HDSP MIDI interface
under Linux. Over time the HDSP 9652 just gets further and further
behind.
2) There is no problem with the HDSP MIDI interface under Windows.
3) Thee is no problem with the MidiMan 2x2 interface under Linux.
The problem seems to be pretty clearly the way the Linux stack is
using the HDSP 9652 MIDI interface. I'm guessing it's a driver problem,
but I don't want to color the perception.
I know it's a newer driver. How can we go about debugging this and
getting it fixed?
I can post mp3's of all these cases for people to hear if it is
desirable. I have lots more technical data to relate once we decide how
to go about solving the problem.
Thanks in advance! The fact that I have all this software working as
well as it is is a great accomplishment for me, and due to a lot of
great programmers out there like you guys!
Cheers,
Mark
Well, I figured out that the culprit to my xrun problem wasn't my 533mghz
processor, its my envy24 chipset based card, from the alsa wiki:
"Many but not all users complain about sound glitches. This may be due to
the cards being IRQ hungry. (VU meter interface?) -- Tobiah"
Given that the evil envy24 chip is in a lot of cards out there, I'm
wondering what cards people have had better results with?
http://www.brianredfern.org
Hi,
For a musical I've to remove the background choirs from a karaoke cd.
The CD sounds like it's MIDI, and it's some simple music. I hope I can
remove the choirs by overwriting them with other parts of the song that
have the same instrumental parts.
The problem is that I can't find a good editor to do so.
I need some multitrack capabilty, to lay all the different parts on
different tracks for easy editing.
I need some form of volume-envelope/automation for smooth fading of the
tracks (fade in/out plugins are not an option because I need to tweak
it and that's difficult with plugins that work on selections).
The obvious candidates like audacity and ardour don't work, because
audacity has no markers, so I can't find back the positions from where
I cut and ardour is too buggy to use.
I've looked at linuxsound.at for editors, but most are still too much
under development.
I hope someone here can give me a good hint on what editor can be used.
Perhaps I missed a feature in one editor that can help me? What editor
would you choose?
Thanks in advance,
Remco Poelstra
Hello
I'm clearing out all my old guff and i found a midiman portman 2x4 parallel port midi interface. Last time i looked ( a year and a half ago) there were no linux drivers, but if anyone wants it, i can send it to them. mail me off the list if you want it. you'll have to pay the postage.
cheers + good new year
matthew
Thought I'd post to see if anyone has any advice. I've just built a
new SMP machine: Asus A7M266-D, 1.0 Ghz Athlons * 2. I got some nice
fans from endpcnoise.com (Molex) that are virtually silent and a Power
Supply which is louder than what I'd hope but very reasonable for
400W's I suppose (dunno).
I installed gentoo, latest alsa, etc... Unfortunately playback is
distorted during video load. It is *not* a CPU load issue - I can
playback just fine while compiling the kernel with make -j3. If I
scroll pages up and down in galeon the sounds slows down :o. Jack
doesn't report Xruns but sometimes delays when I do this. This occurs
both with the onboard C-media chip and my Delta 44.
I struggled for a long time to get the IRQ's not to share. I tried all
the suggestions in the Audio Quality HOWTO. The video card is a PCI
GForce 2. It was in my old machine and didn't cause any problems
(while my old onboard AGP did create some noise). The only thing I can
find is the PCI Latency settings are all set to 32. This seems odd I
suppose, so I tried higher settings for the video to give it more
bandwith and other variations with no success.
I might go out and buy an inexpensive AGP card tomorrow, but I'd hate
to find out the problem is deeper than that. Kernel is 2.4.20 vanilla
tried with and without lowlat. Maybe I should back down to 2.4.19? Any
suggestions? TIA
--ant
Hello,
I was wondering if anyone here had any experience using the new demudi/agnula
beta distro?
Reason being that I would like to know the process for downloading the iso and
extracting it before burning. Furthermore, will it be possible to boot from
this cd or is really only an upgrade to a debian system.
Thanks
for any help
--DHB
I recently joined a choir and I find myself behind since everyone else is intimately familiar with the music. I loaded up the Music Construction Set on my Commodore 64 and it is working out OK. However, I really would like an equivalent program for Linux. I need to be able to put notes on a staff to match the sheet music and then I need to play it back. The program has to be simple to use and easy to learn. So far I have found some very powerful programs but with power comes complexity so that none seem to fit my requirements. Is there anything available to do what I want?
Jeff S.
Hi,
I'm trying to use mplayer's ac3 passthrough option, with the ALSA drivers, but I get the following error:
alsa-init: requested format: 48000 Hz, 2 channels, AC3
alsa-init: soundcard set to iec958:AES0=0x2,AES1=0x82,AES2=0x0,AES3=0x2
ALSA lib pcm_hw.c:866:(snd_pcm_hw_open) open /dev/snd/pcmC0D3p failed: No such device
alsa-init: playback open error: No such device
if I do an ll on the /dev/snd/pcmC0D3p the permissions, etc look fine:
- ll /dev/snd/pcmC0D3p
crw-rw-rw- 1 root root 116, 19 Dec 26 17:54 /dev/snd/pcmC0D3p
When I try to cat the file, it gives me the same error, though.
Does anyone have any ideas?
Regards,
Reinier.
I'm pleased to say that the Oxygen 8 now works with my RedHat-based
laptop, after installing the latest stuff from Planet CCRMA. The
only problem is that now my USB Audio interface fails.
ALSA appears to be starting OK:
[root@gimel jzitt]# /etc/rc.d/init.d/alsasound start
Starting sound driver snd-usb-audio [ OK ]
Starting sound driver snd-usb-audio [ OK ]
Starting sequencer driver snd-seq-midi [ OK ]
Restoring sound driver settings [ OK ]
[root@gimel jzitt]#
But jack hangs:
[root@gimel jzitt]# jackstart -R -d alsa -d hw -r 44100
jackd 0.41.1
Copyright 2001-2002 Paul Davis and others.
jackd 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
loading driver ..
creating alsa driver ... hw|1024|2|44100|swmon
starting engine
cannot lock down memory for RT thread (Cannot allocate memory)
**** alsa_pcm: xrun of at least 0.074 msecs
(and there it sits until I do a ^C)
I'm also seeing an error from lsusb for the Audio interface:
Bus 001 Device 012: ID 0582:0006 Roland Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.00
bDeviceClass 0 Interface
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0582 Roland Corp.
idProduct 0x0006
bcdDevice 1.10
iManufacturer 1 Roland
iProduct 2 UA-30 (44100Hz, Analog REC)
iSerial 0
bNumConfigurations 1
cannot get config descriptor 0, Connection timed out (110)
Language IDs: (length=4)
0409 English(US)
...though the Oxygen 8 looks OK:
Bus 001 Device 011: ID 0763:1015 Midiman
Device Descriptor:
bLength 18
bDescriptorType 1
bDescriptorType 1
bcdUSB 1.00
bDeviceClass 0 Interface
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x0763 Midiman
idProduct 0x1015
bcdDevice 1.20
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type none
wMaxPacketSize 32
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 32
bInterval 0
Endpoint Descriptor:
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
wMaxPacketSize 32
bInterval 0
Language IDs: (length=4)
0409 English(US)
Does this suggest anything (other than what we could tell from my
earlier posts)?
--
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