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wiki:raspberrypi [2017/02/17 20:32] – [Disabling unneeded services] Updated jackstart script URL cheekyisgreat | wiki:raspberrypi [2020/03/15 17:46] – [On-board audio] autostatic | ||
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===== On-board audio ===== | ===== On-board audio ===== | ||
- | The on-board chipset of the RPi has quite some limitations unfortunately. It only does playback and because of it's design it is not really suited for real-time, low-latency audio processing. It does work with JACK now that it has MMAP support but don't expect it to run without glitches at lower latencies. | + | The on-board chipset of the RPi has quite some limitations unfortunately. It only does playback and because of it' |
Other drawbacks of the analog audio output: | Other drawbacks of the analog audio output: | ||
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Another option is to comment or remove the kernel module for the onboard soundcard (snd-bcm2835) from ''/ | Another option is to comment or remove the kernel module for the onboard soundcard (snd-bcm2835) from ''/ | ||
- | ===== Audio software repository ===== | ||
- | There' | ||
- | |||
- | ==== Adding the repository ==== | ||
- | |||
- | wget -O - http:// | ||
- | sudo wget -O / | ||
- | sudo apt-get update | ||
===== Using JACK ===== | ===== Using JACK ===== | ||
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export DBUS_SESSION_BUS_ADDRESS=unix: | export DBUS_SESSION_BUS_ADDRESS=unix: | ||
- | And then add the following lines to ''/ | + | And then add the following lines to ''/ |
<policy user=" | <policy user=" | ||
+ | <allow own=" | ||
<allow own=" | <allow own=" | ||
</ | </ | ||
+ | | ||
+ | WARNING: In Raspbian Stretch I had to do the following instead of modifying '' | ||
+ | |||
+ | Create a new file ''/ | ||
+ | |||
+ | <?xml version=" | ||
+ | < | ||
+ | " | ||
+ | | ||
+ | < | ||
+ | | ||
+ | <policy context=" | ||
+ | <allow own=" | ||
+ | <allow own=" | ||
+ | </ | ||
+ | | ||
+ | </ | ||
+ | |||
+ | |||
=== Using an external USB audio interface === | === Using an external USB audio interface === | ||
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[[http:// | [[http:// | ||
+ | |||
+ | [[https:// | ||
{{tag> | {{tag> |