update: more convenient way to apply udev rules
This commit is contained in:
Jack Shao
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@ -0,0 +1,8 @@
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SUBSYSTEM!="sound", GOTO="seeedvoicecard_end"
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ACTION!="change", GOTO="seeedvoicecard_end"
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KERNEL!="card*", GOTO="seeedvoicecard_end"
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ATTR{id}=="seeed4micvoicec",ENV{PULSE_PROFILE_SET}="seeed-voicecard-4mic.conf"
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ATTR{id}=="seeed8micvoicec",ENV{PULSE_PROFILE_SET}="seeed-voicecard-8mic.conf"
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LABEL="seeedvoicecard_end"
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@ -1,10 +1,32 @@
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# PulseAudio Configuration for seeed-voicecard
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Following this guide if you want to use your seeed-voicecard as a default source/sink of pulseaudio.
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Follow this guide if you want to use your seeed-voicecard as a default source/sink of pulseaudio.
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### Prerequisites
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1. Download PulseAudio
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```
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sudo apt install -y pulseaudio
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```
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2. PulseAudio Profiles
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```
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cd seeed-voicecard/pulseaudio
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sudo cp pulse_config_4mic/seeed-voicecard.conf /usr/share/pulseaudio/alsa-mixer/profile-sets/seeed-voicecard-4mic.conf
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sudo cp pulse_config_6mic/seeed-voicecard.conf /usr/share/pulseaudio/alsa-mixer/profile-sets/seeed-voicecard-8mic.conf
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```
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3. Add `udev` Rules
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During the system start, when the card "seeed4micvoicec" is detected, the PULSE_PROFILE_SET variable will be set in the udev database, and PulseAudio will be forced to use `seeed-voicecard-4mic.conf`. Similarly, if the card "seeed8micvoicec" is detected, PulseAudio will be forced to use `seeed-voicecard-8mic.conf`.
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```
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sudo cp 91-seeedvoicecard.rules /etc/udev/rules.d/91-seeedvoicecard.rules
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```
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### ReSpeaker 4 Mic Array
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<!--
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1. Download pulseaudio
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```
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sudo apt install pulseaudio
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@ -20,7 +42,7 @@ sudo cp seeed-voicecard.conf /usr/share/pulseaudio/alsa-mixer/profile-sets/
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3. Edit `udev rules`
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During the system start, when the card "seeed4micvoicec" is detected, the PULSE_PROFILE_SET variable will be set in the udev database, and PulseAudio will be forced to use `seeed-voicecard.conf`.
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During the system start, when the card "seeed4micvoicec" is detected, the PULSE_PROFILE_SET variable will be set in the udev database, and PulseAudio will be forced to use `seeed-voicecard.conf`.
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```
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# have a look at /lib/udev/rules.d/90-pulseaudio.rules
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@ -72,15 +94,15 @@ sudo cp seeed-voicecard.conf /usr/share/pulseaudio/alsa-mixer/profile-sets/
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KERNELS=="platform"
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SUBSYSTEMS==""
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DRIVERS==""
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```
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``` -->
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4. config `default.pa` and `daemon.conf`
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1. config `default.pa` and `daemon.conf`
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```
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sudo cp default.pa /etc/pulse/
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sudo cp daemon.conf /etc/pulse/
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sudo cp pulse_config_4mic/default.pa /etc/pulse/
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sudo cp pulse_config_4mic/daemon.conf /etc/pulse/
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```
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5. reboot raspberry pi and check
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2. reboot raspberry pi and check
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```
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sudo reboot
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pulseaudio --start # start pulse at first
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@ -105,7 +127,7 @@ Cookie: 3b12:70b3
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### 6-Mics Circular Array Kit and 4-Mics Linear Array
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<!--
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1. Download pulseaudio
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```
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sudo apt install pulseaudio
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@ -121,7 +143,7 @@ sudo cp seeed-voicecard.conf /usr/share/pulseaudio/alsa-mixer/profile-sets/
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3. Edit `udev rules`
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During the system start, when the card "seeed8micvoicec" is detected, the PULSE_PROFILE_SET variable will be set in the udev database, and PulseAudio will be forced to use `seeed-voicecard.conf`.
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During the system start, when the card "seeed8micvoicec" is detected, the PULSE_PROFILE_SET variable will be set in the udev database, and PulseAudio will be forced to use `seeed-voicecard.conf`.
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```
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# have a look at /lib/udev/rules.d/90-pulseaudio.rules
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@ -173,15 +195,15 @@ sudo cp seeed-voicecard.conf /usr/share/pulseaudio/alsa-mixer/profile-sets/
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KERNELS=="platform"
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SUBSYSTEMS==""
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DRIVERS==""
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```
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``` -->
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4. config `default.pa` and `daemon.conf`
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1. config `default.pa` and `daemon.conf`
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```
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sudo cp default.pa /etc/pulse/
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sudo cp daemon.conf /etc/pulse/
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sudo cp pulse_config_6mic/default.pa /etc/pulse/
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sudo cp pulse_config_6mic/daemon.conf /etc/pulse/
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```
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5. reboot raspberry pi and check
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2. reboot raspberry pi and check
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```
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sudo reboot
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pulseaudio --start # start pulse at first
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@ -221,7 +243,7 @@ Cookie: 3523:e5af
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3. How to get PulseAudio started automatically
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Normally the PulseAudio server is started automatically. If you want to disable it, you can set `autospawn = no` in `~/.config/pulse/client.conf` or `/etc/pulse/client.conf`.
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Normally the PulseAudio server is started automatically. If you want to disable it, you can set `autospawn = no` in `~/.config/pulse/client.conf` or `/etc/pulse/client.conf`.
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[Click this for more details](https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Running/).
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4. Why the default sample rate is 96000? What if my audio's sample rate is not the same as the default?
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