[PD] another user experience with raspberry pi
Tedb0t
lists at liminastudio.com
Fri Sep 14 00:14:06 CEST 2012
Awesome info—how did it sound? Any distortion? I've got to try this soon.
—T3db0t
On Sep 13, 2012, at 6:08 PM, Cyrille Henry wrote:
> hello,
>
> Antoine and I did few test on a raspberry pi.
>
> to summarise, we did :
> - use standard raspbian installation
> - modify /etc/security/limits.conf as sugested by miller (adding : "* - rtprio 99" and "* - memlock 1000000000")
> - sudo apt-get update, upgrade and install git tk8.5-dev libasound2-dev
>
> git clone git://pure-data.git.sourceforge.net/gitroot/pure-data/pure-data
> copy the configure file from pd 0.43
> cd src , ./configure, make and sudo make install
>
> adding -rt in pd startup flag
>
>
> using the integrated HDMI audio out gives 20ms audio buffer minimum to avoid click, when cpu is unused.
> with nusmuk-audio analog synth emulation (that use 35% cpu when the oscilloscope is removed), 25 ms buffer give no click, few can appear when moving windows.
>
> with an old usb soundcard (edirol ua-1A), 10ms audio buffer is enough to avoid click even when moving windows. (still using the same example patch)
> (44100 or 48000KHz, block size of 64)
>
> in both case, audio input must be disable, we did not manage to use it properly.
>
> details instruction (in french) can be seen on Antoine blog :
> http://antoine.villeret.free.fr/?p=359
>
> cheers
> Cyrille
>
>
>
>
>
>
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