Hi,
Being paid by Microsoft to destroy Linux makes it possible to do some
fun things :) Now that meters.lv2 is officially out, we are giving
away a great book on using audio level meters properly:
"Audio Metering. Measurements, Standards, Practice" written by Eddy
Brixen. http://www.focalpress.com/books/details/9780240814674/
See the bottom of the http://bit.ly/1b7SCXv page for details how to participate.
Given the amount of people who wanted to have a go, I think I can
safely push the submission limit to the end of this week.
Alexandre
Scraping the bottom of the barrel here, but this was too weird not to post. This is also from summer of 2007, features PHASEX, was recorded and mixed on linux with Seq24 and Ardour.
http://storage.restivo.org/music/krmusic/semipublished/alien-techno-0.1.ogg
It's the Sesame Street Yip-Yip Aliens, remixed.
(Source material for the samples, for those outside the USA who might not be familiar: http://www.youtube.com/watch?v=z_trSIBCgF0 The aliens in that segment were revealed to have been ravers who liked four-on-the-floor techno. A lot.)
-ken
So I finally made recording working using jackd and ardour2 but there is
constant clicking, at rate maybe 1 or 2 clicks per second.
Any ideas how to troubleshoot this? Not sure if it's device problem, not
enough CPU or something else...
Here's my setup:
CPU: AMD E-250 1600MHz
RAM: 16GB
Ubuntu 13.04
Linux jojda 3.8.0-31-lowlatency #23-Ubuntu SMP PREEMPT Thu Sep 19
17:08:15 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
USB audio device: BOSS BR-80
Any comments/ideas? (please let me know if there's other relevant info I
can post)
thanks!
erik
Just a note to say that as a result of a bug I put in Calf plug-ins
now support digit entry fields. This was due to some controls being
difficult to set accurately via the mouse. I have not rebuilt and
tested this yet.
https://sourceforge.net/p/calf/bugs/36/
A friend asked me if I had a Theramin sound. I figured, I could cheat with a sine wave or a deeply-filtered sawtooth maybe, but then I thought, hmm, what is a real Theramin wave anyway?
Google Images pumped me up nicely:
http://www.horst-theremin.com/images/_mid%20600%20Hz.jpg
Diagrams for waveforms of the original Lev Termen and RCA instruments, and the Moog and Big Briar Theramins, that I was able to find, also look similar to the above.
And, umm, that ain't no sine wave. It's got some strange bias, louder on the positive than the negative side, more rounded and sine-like on the negative side, and more like a sawtooth on the positive side. I'm told it's also non-linear and the waveform for the lower and higher notes look slightly different, but one thing at a time.
So I thought, well, maybe I could hack up a LADSPA oscillator plugin that does that weird waveform.
Looked at the SDK, and sure enough, in the sine.cpp file, there's an initialize_sine_table() that looks like the right place to put the wave. It's just a table of floats, looks like.
However, my DSP and maths skills stop right about there. I have no idea how to generate the points on that oddball waveform in such a way that they could be dumped into, say, g_pfSineTable.
Has anyone already done this? Anyone want to take a shot at it?
-ken
Hi all,
this weekend I need to do some synchronization work, and I was planning
to use Qtractor (though I've never used it before), but I thought I
might ask here, in case you think there are better tools to accomplish
this.
My setting is very simple: I have a two guitars piece and I have
recorded one of the parts myself. For the second guitar I have entered
the score with Rosegarden. But now I want to fine-tune the mixing of
both and I want to be able to synchronize the MIDI file to my playing.
With Rosegarden and the piano roll, I can easily stretch/move each of
the MIDI notes, but I didn't find an easy way to synchronize with my
audio wave (though I haven't used Rosegarden a lot, so perhaps I missed
something).
Ideally I would like to:
+ load in one program both the audio and the MIDI file
+ see the soundwave forms for both audio and MIDI plus the piano roll
for the MIDI file
+ if something is not synchronized properly (due to the nature of the
music, I can see it nicely by inspectint the soundwave), I would like
to stretch/move the MIDI notes in the piano roll and interactively see
how the soundwave changes, so that I can immediately see if the MIDI
and the audio are better synchronized.
Is there a tool where I can do that easily? Perhaps there is some other
procedure/tool that can help me with this?
Thanks for any suggestion,
--
Ángel de Vicente
http://www.iac.es/galeria/angelv/
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trying to use Boss Micro BR-80 as USB soundcard with Jack but seems like
jack (qjackctl) does not recognize it.
My system: Ubuntu 13.04 with pretty much standard configuration (runs
pulseaudio, installed jackd2, pulseaudio-module-jack, qjackctl)
Have built in audio that I don't really plan to use with jack (or at
least not in initial setup where I am just trying to make something work):
00:01.1 Audio device: Advanced Micro Devices [AMD] nee ATI Wrestler HDMI
Audio [Radeon HD 6250/6310]
00:14.2 Audio device: Advanced Micro Devices [AMD] nee ATI SBx00 Azalia
(Intel HDA) (rev 40)
Boss Micro BR-80 seems to be recognized properly (see below) but
qjackctl does not list it in Set under any of Interface, Input Device,
Output Device choices, I only see /dev/dsp, /dev/audio, plughw:0 and hw:0.
Any ideas why it does not work or how to troubleshoot it further?
When I plug BR-80 in I get (output of usb-devices):
T: Bus=08 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#= 3 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ff(vend.) Sub=00 Prot=ff MxPS=64 #Cfgs= 1
P: Vendor=0582 ProdID=0130 Rev=00.00
S: Manufacturer=Roland
S: Product=BR-80(AUDIO)
C: #Ifs= 4 Cfg#= 1 Atr=80 MxPwr=400mA
I: If#= 0 Alt= 0 #EPs= 0 Cls=ff(vend.) Sub=ff Prot=00 Driver=snd-usb-audio
I: If#= 1 Alt= 0 #EPs= 0 Cls=ff(vend.) Sub=02 Prot=02 Driver=snd-usb-audio
I: If#= 2 Alt= 0 #EPs= 0 Cls=ff(vend.) Sub=02 Prot=01 Driver=snd-usb-audio
I: If#= 3 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=03 Prot=00 Driver=snd-usb-audio
aplay seems to recognize it.
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: SB [HDA ATI SB], device 0: ALC892 Analog [ALC892 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: SB [HDA ATI SB], device 1: ALC892 Digital [ALC892 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: BR80AUDIO [BR-80(AUDIO)], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
aplay -L
default
Playback/recording through the PulseAudio sound server
hdmi:CARD=Generic,DEV=0
HD-Audio Generic, HDMI 0
HDMI Audio Output
dmix:CARD=Generic,DEV=3
HD-Audio Generic, HDMI 0
Direct sample mixing device
dsnoop:CARD=Generic,DEV=3
HD-Audio Generic, HDMI 0
Direct sample snooping device
hw:CARD=Generic,DEV=3
HD-Audio Generic, HDMI 0
Direct hardware device without any conversions
plughw:CARD=Generic,DEV=3
HD-Audio Generic, HDMI 0
Hardware device with all software conversions
sysdefault:CARD=SB
HDA ATI SB, ALC892 Analog
Default Audio Device
front:CARD=SB,DEV=0
HDA ATI SB, ALC892 Analog
Front speakers
surround40:CARD=SB,DEV=0
HDA ATI SB, ALC892 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=SB,DEV=0
HDA ATI SB, ALC892 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=SB,DEV=0
HDA ATI SB, ALC892 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=SB,DEV=0
HDA ATI SB, ALC892 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=SB,DEV=0
HDA ATI SB, ALC892 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=SB,DEV=0
HDA ATI SB, ALC892 Digital
IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=SB,DEV=0
HDA ATI SB, ALC892 Analog
Direct sample mixing device
dmix:CARD=SB,DEV=1
HDA ATI SB, ALC892 Digital
Direct sample mixing device
dsnoop:CARD=SB,DEV=0
HDA ATI SB, ALC892 Analog
Direct sample snooping device
dsnoop:CARD=SB,DEV=1
HDA ATI SB, ALC892 Digital
Direct sample snooping device
hw:CARD=SB,DEV=0
HDA ATI SB, ALC892 Analog
Direct hardware device without any conversions
hw:CARD=SB,DEV=1
HDA ATI SB, ALC892 Digital
Direct hardware device without any conversions
plughw:CARD=SB,DEV=0
HDA ATI SB, ALC892 Analog
Hardware device with all software conversions
plughw:CARD=SB,DEV=1
HDA ATI SB, ALC892 Digital
Hardware device with all software conversions
sysdefault:CARD=BR80AUDIO
BR-80(AUDIO), USB Audio
Default Audio Device
front:CARD=BR80AUDIO,DEV=0
BR-80(AUDIO), USB Audio
Front speakers
surround40:CARD=BR80AUDIO,DEV=0
BR-80(AUDIO), USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=BR80AUDIO,DEV=0
BR-80(AUDIO), USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=BR80AUDIO,DEV=0
BR-80(AUDIO), USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=BR80AUDIO,DEV=0
BR-80(AUDIO), USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=BR80AUDIO,DEV=0
BR-80(AUDIO), USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=BR80AUDIO,DEV=0
BR-80(AUDIO), USB Audio
IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=BR80AUDIO,DEV=0
BR-80(AUDIO), USB Audio
Direct sample mixing device
dsnoop:CARD=BR80AUDIO,DEV=0
BR-80(AUDIO), USB Audio
Direct sample snooping device
hw:CARD=BR80AUDIO,DEV=0
BR-80(AUDIO), USB Audio
Direct hardware device without any conversions
plughw:CARD=BR80AUDIO,DEV=0
BR-80(AUDIO), USB Audio
Hardware device with all software conversions
thanks!
erik
