Sound installation
(→Headphone jack) |
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Back to [[Robobot]]. | Back to [[Robobot]]. | ||
| − | + | ==Sound== | |
| − | + | ===Headphone jack=== | |
On bullseye (Raspbian GNU/Linux 11 (bullseye)) the default is sound on the HDMI. | On bullseye (Raspbian GNU/Linux 11 (bullseye)) the default is sound on the HDMI. | ||
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nano ~/.asoundrc | nano ~/.asoundrc | ||
| − | 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-plug connected, else the card should be 0: | ||
defaults.pcm.card 1 | defaults.pcm.card 1 | ||
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On the GUI interface, there are other options, but not from software or the command line. | On the GUI interface, there are other options, but not from software or the command line. | ||
| − | + | ===Festival=== | |
Easily understandable voice, but takes time to generate | Easily understandable voice, but takes time to generate | ||
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echo "The brown fox jumps over lazy cat" | text2wave -o ccc.wav && aplay ccc.wav | echo "The brown fox jumps over lazy cat" | text2wave -o ccc.wav && aplay ccc.wav | ||
| − | + | ===Music files=== | |
Play sound files, like | Play sound files, like | ||
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$ amixer | $ amixer | ||
| − | Simple mixer control ' | + | 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 | + | The name 'Headphone' is the nickname to use |
| − | |||
Setting the sound level can be done by: | Setting the sound level can be done by: | ||
| − | amixer set | + | amixer set Headphone 0dB unmute |
| − | Setting to maximum (100%) is about the same as setting 4dB ( | + | Setting to maximum (100%) is about the same as setting 4dB (maybe too much for amplifier). |
| − | amixer set | + | amixer set Headphone 100% unmute |
Latest revision as of 15:29, 28 December 2021
Back to Robobot.
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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
