Posts Tagged ‘ubuntu’

Ubuntu audio with Jack continued

Saturday, November 18th, 2017

Allright, allright, allright, allright, allright, allright. I got the original setup working again (just Timemachine is not working at the moment).

What was wrong?

  • No soundfont installed in Qsynth, so no sound!
  • Mixer not installed via synaptic
  • Timemachine not installed via synaptic
  • Patchbay config file missing
  • Mixer config file missing

Here is the screenshot again

And here is the script

#!/bin/bash

#clientNumOxygen=$(aconnect -i | grep client | grep -i Oxygen | cut -d” ” -f2 | tr -d “:”)

# Start Jack audio server
# Patchbay settings will make sure everything gets connected as is in the config file
# Config file to use is /home/spruit/muziekmaken/patchbaywithQsynthandMixer.xml
/usr/bin/qjackctl -s &
sleep 8

# Start Qsynth.
# You will need to have a sound font selected for the sound engine you use otherwise no sound.
# Select it via setup.
/usr/bin/qsynth -g 6 &
sleep 8

# Start Jack Mixer and load settings
# Can be installed via synaptic
# Points to /usr/share/jack-mixer/jack_mixer.py
/usr/bin/jack_mixer -c /home/spruit/muziekmaken/jack_mixer_settings &
sleep 8

# Start a2jmidid to route keyboard midi to jack_mixer. ALSA to Jack.
/usr/bin/a2jmidid -e &
sleep 8

# Start TimeMachine to record brainwaves
/usr/bin/timemachine &

# Start Patchage to route audio between components
# Basically does the same as Patchbay
/usr/bin/patchage &

# Connect the keyboard. Not needed, can do this with PatchBay
# aconnect $clientNumOxygen:0 130:0 &
# Connect a2jmidid. Not needed, can do this with PatchBay
# jack_connect a2j:”Oxygen 61 [$clientNumOxygen] (capture): Oxygen 61 MIDI 1″ jack_mixer:”midi in”

# Disconnect the default ports where we have put the mixer in between
jack_disconnect “PulseAudio JACK Sink”:front-left system:playback_1
jack_disconnect “PulseAudio JACK Sink”:front-right system:playback_2
jack_disconnect qsynth:l_00 system:playback_1
jack_disconnect qsynth:r_00 system:playback_2

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Ubuntu audio with Jack continued

Saturday, November 18th, 2017

Dammit, I had to set up all the audio again in my new version of Ubuntu. The midi keyboard once again produces sound over my laptop. Still need to find out how I can get all the fancy sounds from it.

Below is the Patchbay and Patchage setup.

Here is the start up script:

#!/bin/bash

#clientNumOxygen=$(aconnect -i | grep client | grep -i Oxygen | cut -d” ” -f2 | tr -d “:”)

# Start Jack audio server
# Patchbay settings will make sure everything gets connected as is in the config file
# Config file is /home/spruit/muziekmaken/patchbaywithsynthv1.xml
/usr/bin/qjackctl -s &
sleep 8

# Start Qsynth, this does not seem to work anymore
# /usr/bin/qsynth -g 6 &
# Start synthv1 or yoshimi
/usr/bin/synthv1_jack &
# /usr/bin/yoshimi &
sleep 8

# Start Jack Mixer and load settings
# Points to /usr/share/jack-mixer/jack_mixer.py
# Nog knoppen op keyboard definieren om volume te regelen
# This program is no longer available on the current Ubuntu version
# /usr/bin/jack_mixer -c /home/spruit/muziekmaken/jack_mixer_settings &
# sleep 8

# Start a2jmidid to route keyboard midi to jack_mixer. ALSA to Jack.
/usr/bin/a2jmidid -e &
sleep 8

# Start TimeMachine to record brainwaves
# /usr/bin/timemachine &

# Start Patchage to route audio between components
# Basically does the same as Patchbay
/usr/bin/patchage &

# Connect the keyboard. Not needed, can do this with Patchbay
# aconnect $clientNumOxygen:0 130:0 &
# Connect a2jmidid. Not needed, can do this with Patchbay
# jack_connect a2j:”Oxygen 61 [$clientNumOxygen] (capture): Oxygen 61 MIDI 1″ jack_mixer:”midi in”
# Disconnect the default ports where we have put the mixer in between
# jack_disconnect “PulseAudio JACK Sink”:front-left system:playback_1
# jack_disconnect “PulseAudio JACK Sink”:front-right system:playback_2
# jack_disconnect qsynth:l_00 system:playback_1
# jack_disconnect qsynth:r_00 system:playback_2

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Copy files on Linux with exclude

Saturday, May 16th, 2015

This is what I use to make a backup copy of all my images to a temporary folder in Linux. It excludes a number of file extensions, like the ones for movies. It is executed from the folder that contains the files you want to copy.

sudo tar cvf - * --exclude *.MTS --exclude *.mpg --exclude 
*.MPG --exclude *.mp4 --exclude *.modd --exclude *.db 
--exclude *.avi --exclude *.AVI --exclude *.THM --exclude 
*.idx --exclude *.info --exclude *.mov --exclude *.MOV 
--exclude *.zip --exclude *.dat --exclude *.db  --exclude 
adirectory/* | ( cd /media/spruit/ausbstick; tar xfp -)

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Midi keyboard in Ubuntu

Monday, April 9th, 2012

There aren’t a lot of good tutorials on how to set up your midi keyboard in Ubuntu. Here is how I did it.

  • Get a midi keyboard (duh!). Mine is an M-AUDIO Oxygen 61.
  • Install Jack Audio, it connects your keyboard with your synthesizer software.
  • Install Bristol, it provides a good set of synthesizers.
  • OPTIONAL install monoBristol, it provides a GUI to Bristol to start up other instruments.

This should give you all you need to start playing your keyboard. However, you would need to start up Jack Audio and Bristol separately every time and also connect your midi keyboard to your synthesizer software and your software to your speakers via Jack Audio each time. Fortunately it is easy to script this in Linux, since there are command line equivalents for all steps.

Here is my script that fires up a Hammond Organ and a Rhodes Bass Piano at the same time 🙂

start_hammond_and_rhodes

O, and off course all this costs EUR 0,00 because the software is open source…

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