Thu, 26 February 2009
Tech Segment: Scratch Tracks
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Song: Scratch Track
Mon, 9 February 2009
Mentions of our show on other showsSoftware Releases:
QJackMMC / JackCtlMMC:
If you have a MIDI device capable of sending Midi
Machine Code commands, you can use QJackMMC / JackCtlMMC to control
all your JACK-based programs with your external hardware, or even
internal ALSA programs that emit MMC.
- Added device ID support (formerly listened to ID 7f only)
- Added Help->About and Help->What's This
- Made the makefile more robust for easier building
- Fixed Lash startup bug
- Fixed Jack disconnect bug
Invada LADSP Plug-ins:
* Input Module (Stereo only)
Alter gain, balance, width, phase on a stereo signal
* Low Pass (Mono and Stereo version)
* High Pass (Mono and Stereo version)
Gentle high pass and low pass filters
* Tube - (Mono and Stereo version)
Valve warmth/distortion simulation
* Compressor - (Mono and Stereo version)
Peak/RMS soft-clipping compressor
The 'tight/sloppy' control modifies the envelope sensor - from peak (one
sample) to rms (50ms worth of samples). Having the envelope 'sloppy'
causes the compressor not to see transients at all, which allows for more
severe compression on sounds like vocals & bass.
* ER Reverb - (Mono and Stereo summing In)
Early reflection based reverb. Really more of a room simulator than a
reverb. Use this to add simulated room ambiance to sounds that have none -
particularly useful when combining mic'd & electronic instruments as you
can add room ambiance absent in the electronic signals to help blend in.
Don't expect to get big washing reverbs with large room sizes - Large
room sizes cause the early reflections to be individually discernible and
you end up with a series of echos.
Another use of this plugin is to reinforce stereo placement - the sound
source is positionable and the resultant reflections realistically place
the source at a specific spot. (rather than dragging the sound back to the
The source tarball for the 0.8.2 (stable) release is now available. Also uploaded is a binary built for Windows.
A lot of bugs were fixed and several new features were added.
MIDI input filters - scripts that let you control Denemo from MIDI
controller. (Advance on edit, Angry Delete, Figured Bass entry ...)
Audio feedback - either simple beep-beep type sounds on entering
notes/rhythms or (with JackMidi) synthesizer notes.
Mouse shortcuts (e.g. dragging to create crescendos or slurs, all
customizable with custom cursors during drag)
More scripting support.
Applying operations to selections.
More printed notation available from commands (Tempo Indications,
fingerings, metronome marks, beaming, anacrusis (upbeat), repeat
Better menu organization.
Allow Denemo music scores to have their own actions automatically
performed on loading. (e.g. launching education games, playing
Fixes to Windows version: no need to re-boot after install, scripted
menu items in hierarchical menus no longer crashing.
NetJack2 (NetJack for Jack2) improvements on latest SVN rev 3269:
- much more reliable behaviour: now works correctly with audio/midi ports on Linux, MacOSX and Windows
- improvements in ALSA audioadapter component
- "resynch" itself after network overload (see known problems section)
- the NetJack2 components (netmanager, audioadapter, netadapter) will soon be integrated in JackOSX package, even with no GUI to control them in a first step.
Some old general words on NetJack2:
1) First remember that NetJack2 common use case is to have one "master" machine (where Jack server is synchronized on the audio card) and one or several "slave" machines that are synchronized on the "jack_net" backend. This setup is typically used to run heavy audio processes on slaves machine but keeping in synch with the master.
If the user still wants to listen to the audio stream on any slaves machines audio card, an "adaptation" has to be done since master and slaves audio cards are usually not synchronized.The "audioadapter" component is an "in server" client (that can be loaded using jack_load tool or the new extented JACK2 control API) that does this step by resampling the audio stream from/to the master machine on the local slave audio card.
The "audioadapter" component uses the needed underling audio API (CoreAudio on OSX, ALSA on Linux and PortAudio on Windows) to access the audio card.
2) Another typical case is "master" machine synchronized on audio card, and "slave" machine also synchronized on audio card, and the user wants to transmit audio streams on the network between the 2 machines (a more common need for joe user maybe...)
Another in server" client called "netadapter" is available for that. When loaded in the slave Jack server, it just connect to the master machine (same feature as jack_net component) and "adapts" (that is resample) streams from the network to be played on the local slave audio card.
Wiki page : http://trac.jackaudio.org/
- in case of network overloading (too much audio channels ) the system is supposed to "resynch" itself and continue working when the load decrease later on. This does not yet work perfectly and you may need to restart the networking component (like : jack_unload netmanager and jack_load netmanager again)
- when Windows is used as the master, quitting slave clients is not correctly detected and "not working anymore" clients stay in the server.
jack_capture is a program for recording soundfiles with jack. Its default
operation is to capture whatever sound is going out to your speakers into
a file, but it can do a number of other operations as well.
0.9.31 -> 0.9.32:
*Changed default format for from wav to wavex for files with more
than two channels. Thanks to Fons Adriaensen for the suggestion.
*Added fix for 64 bit mode. Thanks to Andras Simon for helping
to find the bug and Dominique Fober for fixing the bug.
*Added the "-verbose" option for easier debugging in case program
crashes or freezes.
*Checks whether sndfile.h exists before generating setformat.c.
Ambisonic LADSPA plugins:
Version 0.4.0 adds a 2nd order periphonic panner and
horizontal rotator (i.e. 9-ch output).
Have a look at the README - channel orders of the
existing 2,1 plugins and the new 2,2 ones are not
B Minor Prelude From the first WTC(Well Tempered Clavier)
1. HowTo Jack configuration: https://help.ubuntu.com/
which is interlinked with the more general and highly useful:
2. UbuntuStudio preparation: https://help.ubuntu.com/
3. Soundcard compatibility - definitely check the Alsa guide:
4. On the long run, I recommend browsing through and reading the articles of Dave Philips on LinuxJournal: they are written with a light, understandable, yet highly informative style. You will get ideas which software does what and at what quality level in Linux Audio
SAE ends it's support for Ardour
Financial support for Ardour.
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