Category Archives: software

open source software

ambdec-0.5.1, tetraproc-0.8.2, AMB-plugins-0.8.1 for Mac OS X

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(C) Fons AdriaensenI compiled the latest versions of Fons Adriaensens’ Ambisonics Decoder ambdec-0.5.1 (PDF manual) and his Microphone-Processor to convert TetraMic recordings to B-Format tetraproc-0.8.2 (PDF paper) for Mac OS X.

I packed them in easy-to-use installer packages which should run under Mac OS X >=10.6 (Snow Leopard, Lion, Mountain Lion):

Note about ambdec: The manual is outdated! The configuration window is gone. Use a Texteditor to edit .ambdec files!

ambdec-0.5.1-installer.pkg (C) Fons Adriaensen
tetraproc-0.8.2-installer.pkg

Make sure you have JackOSX (http://www.jackosx.com) and X11 (http://xquartz.macosforge.org) installed.

Troubleshooting: Sometimes the installer does not set the file permissions for graphic files correct, try to check if the folder /usr/local/share/ambdec is read/writeable for the user. You can start ambdec from Terminal and check for error messages (just type ambdec in Terminal and hit Return).

Additionally I compiled and packed the LADSPA Ambisonics Plug-In Set (AMB-plugins-0.8.1) for 32/64 bit on Mac running in Ardour under Mac OS XOS X >= 10.6 to use within Ardour.

AMB-plugins-0.8.1-LADSPA-osx.zip

Homepage of the Software Author Fons Adriaensen and his (mostly Linux) tools:
http://kokkinizita.linuxaudio.org

jconvolver 0.9.2 and zita-rev-0.2.1 for Mac OS X

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As addition to the Ambisonics Decoder, Microphone Processor and LADSPA Plug-Ins I compiled and packed the convolution software jconvolver 0.9.2 as easy-to-use installer for Mac OS X >=10.6.

This Jack client is a very flexible real-time convolution engine, including configurations for applying Multichannel Ambisonics reverb.

jconvolver-0.9.2-installer.pkg

You can find some additional Ambisonic reverb impulse responses here:
http://www.openairlib.net
http://people.bath.ac.uk/masrwd/sspaces/sciencespaces.html
http://space-net.org.uk

(C) Fons AdriaensenThe Jack Reverb Plug-In with Ambisonics mode zita-rev-1-0.2.1 is available here:

zita-rev1-0.2.1-installer.pkg

All developements by Fons Adriaensen:
http://kokkinizita.linuxaudio.org

Get more information about Ambisonics and Ardour in an article by Jörn Nettingsmeier.
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DarwiinRemoteOSC Mountain Lion

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darwiinremote-oscI fixed the program DarwiinRemote for Mac OS 10.8 (Mountain Lion) and added Open Sound Control (OSC) support for the most recent version. Download it here:

DarwiinRemoteOSC-2012-12-24-09-47.dmg

DarwiinRemoteOSC allows to connect via Bluetooth to the WiiRemote controller. It also supports Nunchuk, Classic Controller and Balance Board.
All data from the Wii Controller is forwarded via OSC. IP and Port can be changed by command line argument. OSC can be sent to DarwiinRemoteOSC to turn on Force Feedback, LEDs and retrieve Battery status.

Sourcecode available on Github.

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midi2rms – midi volume fader curve sampling

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volume-behaviorA very crucial and maybe often underestimated point for working with (volume) faders, especially in live electronics application is their curve/behavior. Which range does it cover? How fast does “it” get “loud”. What is the behavior around the +0 dB mark?

I sampled the midi volume fader behavior from several of the most popular Digital Audio Workstations. The difference is quite obvious as you can see in the graph to the right.

pd-fader-behavior-screenshotI made a Pure Data abstraction as replacement for the frequently used [fadtorms] or [dbtorms]. In connection with the .txt sample files it can be used to scale your midi fader input.
Get the abstraction including sample files and Matlab plots here:

midi2rms_0.11.zip

mcfx v0.6.0 – multichannel audio plug-in suite

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mcfx_meter32mcfx is a suite of multichannel VST plug-ins for MacOS, Windows and Linux
(mcfx_convolver, mcfx_delay, mcfx_filter, mcfx_gain_delay, mcfx_meter)

these plug-ins are very handy if you want to process multiple channels in one go for example
* multiple loudspeaker setups, Ambisonics (see ambiX)
* Microphone array post productions (eg. Eigenmike®)
….mcfx_filter_screenshot

currently high channel counts per track are only possible with the DAWs Reaper (Win, OSX) and Ardour (Linux, OSX)

– channel count is configurable with compile time flag
– cross plattform VST for MacOSX, Windows and Linux
– uses the JUCE framework (www.juce.com)
– ready to use binaries for MacOSX (≥ 10.7, 32/64 bit, Apple Silicon) and Windows (32/64 bit)mcfx_gain_delay_screenshot

Source code: https://github.com/kronihias/mcfx

VST Binaries: (2, 4, 8, 16, 24, 32, 36, 50, 64 channel version)

 

DOWNLOAD:

downloadDownload binaries from: https://github.com/kronihias/mcfx/releases

 

Additionally you can download some example first order B-format reverb presets for mcfx_convolver: mcfx_convolver_presets_v0.1.zip
Here is a help file explaining the .conf files.
Note that you have to use ambix_converter after the convolver and choose the preset .amb -> ambix in case you want to use those impulse responses in combination with ambix_decoder or ambix_binaural.

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