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jerryyip 2018-05-30 10:36:10 +08:00
parent 33ddbd39d3
commit 3074de1f86
5 changed files with 16 additions and 8 deletions
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16
pulseaudio/README.md
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@ -8,7 +8,6 @@ Following this guide if you want to use your seeed-voicecard as a default source
1. Download pulseaudio 1. Download pulseaudio
``` ```
sudo apt install pulseaudio sudo apt install pulseaudio
pulseaudio --k
``` ```
2. First, you need to write [a profile for pulse](https://www.freedesktop.org/wiki/Software/PulseAudio/Backends/ALSA/Profiles/) 2. First, you need to write [a profile for pulse](https://www.freedesktop.org/wiki/Software/PulseAudio/Backends/ALSA/Profiles/)
@ -97,7 +96,7 @@ User Name: pi
Host Name: raspberrypi Host Name: raspberrypi
Server Name: pulseaudio Server Name: pulseaudio
Server Version: 10.0 Server Version: 10.0
Default Sample Specification: s16le 4ch 16000Hz Default Sample Specification: s16le 4ch 96000Hz
Default Channel Map: front-left,front-center,front-right,rear-center Default Channel Map: front-left,front-center,front-right,rear-center
Default Sink: alsa_output.platform-soc_audio.analog-stereo Default Sink: alsa_output.platform-soc_audio.analog-stereo
Default Source: alsa_input.platform-soc_sound.seeed-source Default Source: alsa_input.platform-soc_sound.seeed-source
@ -110,7 +109,6 @@ Cookie: 3b12:70b3
1. Download pulseaudio 1. Download pulseaudio
``` ```
sudo apt install pulseaudio sudo apt install pulseaudio
pulseaudio --k
``` ```
2. First, you need to write [a profile for pulse](https://www.freedesktop.org/wiki/Software/PulseAudio/Backends/ALSA/Profiles/) 2. First, you need to write [a profile for pulse](https://www.freedesktop.org/wiki/Software/PulseAudio/Backends/ALSA/Profiles/)
@ -202,7 +200,7 @@ User Name: pi
Host Name: raspberrypi Host Name: raspberrypi
Server Name: pulseaudio Server Name: pulseaudio
Server Version: 10.0 Server Version: 10.0
Default Sample Specification: s32le 8ch 48000Hz Default Sample Specification: s32le 8ch 96000Hz
Default Channel Map: front-left,front-left-of-center,front-center,front-right,front-right-of-center,rear-center,aux0,aux1 Default Channel Map: front-left,front-left-of-center,front-center,front-right,front-right-of-center,rear-center,aux0,aux1
Default Sink: alsa_output.platform-soc_sound.seeed-2ch Default Sink: alsa_output.platform-soc_sound.seeed-2ch
Default Source: alsa_input.platform-soc_sound.seeed-8ch Default Source: alsa_input.platform-soc_sound.seeed-8ch
@ -220,4 +218,12 @@ Cookie: 3523:e5af
2. Can't start PulseAudio 2. Can't start PulseAudio
Check `default.pa` and `daemon.conf` Check `default.pa` and `daemon.conf`
3. How to get PulseAudio started automatically
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`.
[Click this for more details](https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Running/).
4. Why the default sample rate is 96000? What if my audio's sample rate is not the same as the default?
For the other sample rate audio, PulseAudio will resample it into 96K, which means that if your audio's sample rate is lower than 96K, it will get smoothing.

2
pulseaudio/pulse_config_4mic/daemon.conf
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@ -74,7 +74,7 @@
; rlimit-rttime = 200000 ; rlimit-rttime = 200000
default-sample-format = s16le default-sample-format = s16le
default-sample-rate = 16000 default-sample-rate = 96000
; alternate-sample-rate = 48000 ; alternate-sample-rate = 48000
default-sample-channels = 4 default-sample-channels = 4
; default-channel-map = front-left,front-right ; default-channel-map = front-left,front-right

2
pulseaudio/pulse_config_4mic/default.pa
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@ -140,3 +140,5 @@ load-module module-filter-apply
#set-default-sink output #set-default-sink output
#set-default-source input #set-default-source input
set-default-source alsa_input.platform-soc_sound.seeed-source set-default-source alsa_input.platform-soc_sound.seeed-source
set-default-sink alsa_output.platform-soc_sound.seeed-sink

2
pulseaudio/pulse_config_4mic/seeed-voicecard.conf
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@ -12,7 +12,7 @@ priority = 3
direction = input direction = input
[Mapping seeed-sink] [Mapping seeed-sink]
device-strings = playback device-strings = playback
channel-map = front-left,front-right,rear-left,rear-right channel-map = front-left,front-right
exact-channels = false exact-channels = false
fallback = yes fallback = yes
paths-output = seeed-sink paths-output = seeed-sink

2
pulseaudio/pulse_config_6mic/daemon.conf
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@ -74,7 +74,7 @@
; rlimit-rttime = 200000 ; rlimit-rttime = 200000
default-sample-format = s32le default-sample-format = s32le
default-sample-rate = 48000 default-sample-rate = 96000
; alternate-sample-rate = 48000 ; alternate-sample-rate = 48000
default-sample-channels = 8 default-sample-channels = 8
; default-channel-map = front-left,front-right ; default-channel-map = front-left,front-right