Sound installation
(→Headphone jack) |
(→Headphone jack) |
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| Line 18: | Line 18: | ||
insert these two lines (1=jack, 0=HDMI sound) | insert these two lines (1=jack, 0=HDMI sound) | ||
| − | NB! this is valid if there is a HDMI connected, else the card should be 0: | + | NB! this is valid if there is a HDMI-plug connected, else the card should be 0: |
defaults.pcm.card 1 | defaults.pcm.card 1 | ||
Latest revision as of 15:29, 28 December 2021
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[edit] Sound
[edit] Headphone jack
On bullseye (Raspbian GNU/Linux 11 (bullseye)) the default is sound on the HDMI.
To see the Linux version use
cat /etc/os-release
Change output to the headphone jack a configuration file is needed
Create a file called .asoundrc
nano ~/.asoundrc
insert these two lines (1=jack, 0=HDMI sound)
NB! this is valid if there is a HDMI-plug connected, else the card should be 0:
defaults.pcm.card 1 defaults.ctl.card 1
Logout and re-login.
On the GUI interface, there are other options, but not from software or the command line.
[edit] Festival
Easily understandable voice, but takes time to generate and require two intermediate files
sudo apt install festival echo "The brown fox jumps over lazy dog" > aaa.txt text2wave aaa.txt -o aaa.wav aplay aaa.wav
or on one line
echo "The brown fox jumps over lazy cat" | text2wave -o ccc.wav && aplay ccc.wav
[edit] Music files
Play sound files, like
sudo apt-get install sox libsox-fmt-all play -v0.1 music.mp3
This line plays an mp3 file with volume reduced by a factor 0.1.
The at startup the blue button on the gamepad plays the file in /home/local/Music/music.mp3.
This is a symbolic link to some real music (Radetzky Marsch in this case):
ls ~/Music radetzky-marsch_Schloss-Schoenbrunn-Konzerte_Wien_full-length.mp3 cd ~/Music ln -s radetzky-marsch_Schloss-Schoenbrunn-Konzerte_Wien_full-length.mp3 music.mp3
The free music is found at
https://www.imagevienna.com/en/services/downloadarea/downloads.html
and can be downloaded using a wget command and then make a link named music.mp3:
cd Music wget https://www.imagevienna.com/fileadmin/mp3/radetzky-marsch_Schloss-Schoenbrunn-Konzerte_Wien_full-length.mp3 ln -s radetzky-marsch_Schloss-Schoenbrunn-Konzerte_Wien_full-length.mp3 music-mp3
[edit] Sound level
On a Raspberry pi version 3+ (not tested on other versions)
$ amixer Simple mixer control 'Headphone',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback -10239 - 400 Mono: Playback 400 [100%] [4.00dB] [on]
The name 'Headphone' is the nickname to use
Setting the sound level can be done by:
amixer set Headphone 0dB unmute
Setting to maximum (100%) is about the same as setting 4dB (maybe too much for amplifier).
amixer set Headphone 100% unmute
