07-02-2021, 01:47 PM
(This post was last modified: 07-02-2021, 02:30 PM by DavidBanner.)
Callers are telling me that they are hearing 2.5 sec delayed echo of themselves speaking when I am making or answering calls within Android Auto.
It might be a sample rate issue, I have managed to set most of the sinks to 48 kHz (it seems like it is impossible to set 44100, when I try it drops to 38000 so I guess 44.1 kHz is not supported).
However I am not sure how to set the bluez_sink a2dp and headset_audio_gateway sample rates to match the other sinks.
can anyone suggest how to set the sample rates? I have tried setting the defaults in here: /etc/pulse/daemon.conf but it seems to ignore these settings
current settings:
pi@raspberrypi:~ $ pactl list short sinks
0 alsa_output.usb-0d8c_C-Media_USB_Headphone_Set-00.analog-stereo module-alsa-card.c s16le 2ch 48000Hz IDLE
1 equalizer_sink module-ladspa-sink.c float32le 2ch 48000Hz RUNNING
2 equalizer_sink.echo-cancel module-echo-cancel.c float32le 2ch 48000Hz IDLE
3 bluez_sink.00_13_EF_A0_0A_32.a2dp_sink module-bluez5-device.c s16le 2ch 44100Hz RUNNING
7 bluez_sink.58_B1_0F_E7_0E_27.headset_audio_gateway module-bluez5-device.c s16le 1ch 8000Hz RUNNING
System:
System components:
a. PI4B 8gb
b. Power Supply: 3A
c. PCM 2704 USB soundcard
d. Yes
e. UGreen BT Dongle
f. Display: Waveshare 7HP-CAPQLED touch display
2. Android Auto:
a. Version: OAP 13.1
b. Phone: Samsung Galaxy S9
It might be a sample rate issue, I have managed to set most of the sinks to 48 kHz (it seems like it is impossible to set 44100, when I try it drops to 38000 so I guess 44.1 kHz is not supported).
However I am not sure how to set the bluez_sink a2dp and headset_audio_gateway sample rates to match the other sinks.
can anyone suggest how to set the sample rates? I have tried setting the defaults in here: /etc/pulse/daemon.conf but it seems to ignore these settings
current settings:
pi@raspberrypi:~ $ pactl list short sinks
0 alsa_output.usb-0d8c_C-Media_USB_Headphone_Set-00.analog-stereo module-alsa-card.c s16le 2ch 48000Hz IDLE
1 equalizer_sink module-ladspa-sink.c float32le 2ch 48000Hz RUNNING
2 equalizer_sink.echo-cancel module-echo-cancel.c float32le 2ch 48000Hz IDLE
3 bluez_sink.00_13_EF_A0_0A_32.a2dp_sink module-bluez5-device.c s16le 2ch 44100Hz RUNNING
7 bluez_sink.58_B1_0F_E7_0E_27.headset_audio_gateway module-bluez5-device.c s16le 1ch 8000Hz RUNNING
System:
System components:
a. PI4B 8gb
b. Power Supply: 3A
c. PCM 2704 USB soundcard
d. Yes
e. UGreen BT Dongle
f. Display: Waveshare 7HP-CAPQLED touch display
2. Android Auto:
a. Version: OAP 13.1
b. Phone: Samsung Galaxy S9