Hi,Everybody,
First thanks kszaq's hard work so we can use the good Libresystem for S905 TV box,
The TV box I used hardware is S905M, 1G RAM, 8G ROM, 100M lan, 8189 Wifi.
system is Libre ELEC 8.0.1C for S905/S905X.
I used optic fiber before it works well, then I tried amanero combo384 usb audio to receive audio, here I found the sound have some strange noisy, like crackles along with normal sound, I compared the latest system 8.0.1C , it improved than old version, but still have some crackles sound, I tried to fix it, but I don't know why and so there I can not find a way to fix it.
I checked wiki of kodi, found a stence, the decription looks like the issue I met, but I'm not sure, I seached google and I didn't find out solution.
6.5 Known issues
When your audio is much too fast or crackles a lot or passthrough only produces noise, you might have a broken driver in use. If this is the case, try to add tsched=0 to the udev loading section in /etc/pulse/default.pa to read like:load-module module-udev-detect tsched=0Audio devices are disappearing with pulseaudio 8.0 (Ubuntu 16.04) especially while running kodi and while using Adjust Refreshrate to match video. This is an issue with the module-switch-on-port-available module and will be fixed with pulseaudio 9.0, the fix sadly won't probably make it into Ubuntu 16.04. As a workaround please disable that feature by editing /etc/pulse/default.pa and commenting or removing load-module module-switch-on-port-available and reboot the system.
I grab system log and wish you could found something it, I checked the log and found audio log didn't include the audio card information of amanero, so I used aplay -L to get the information and attached it in below:
LibreELEC:~/.config # aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=AMLM8AUDIO
AML-M8AUDIO,
Default Audio Device
sysdefault:CARD=AMLM8AUDIO
AML-M8AUDIO,
Default Audio Device
front:CARD=AMLM8AUDIO,DEV=0
AML-M8AUDIO,
Front speakers
surround21:CARD=AMLM8AUDIO,DEV=0
AML-M8AUDIO,
2.1 Surround output to Front and Subwoofer speakers
surround41:CARD=AMLM8AUDIO,DEV=0
AML-M8AUDIO,
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=AMLM8AUDIO,DEV=0
AML-M8AUDIO,
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=AMLM8AUDIO,DEV=0
AML-M8AUDIO,
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=AMLM8AUDIO,DEV=0
AML-M8AUDIO,
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
hdmi:CARD=AMLM8AUDIO,DEV=0
AML-M8AUDIO,
HDMI Audio Output
default:CARD=Amanero
Combo384 Amanero, USB Audio
Default Audio Device
sysdefault:CARD=Amanero
Combo384 Amanero, USB Audio
Default Audio Device
front:CARD=Amanero,DEV=0
Combo384 Amanero, USB Audio
Front speakers
surround21:CARD=Amanero,DEV=0
Combo384 Amanero, USB Audio
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=Amanero,DEV=0
Combo384 Amanero, USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=Amanero,DEV=0
Combo384 Amanero, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Amanero,DEV=0
Combo384 Amanero, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Amanero,DEV=0
Combo384 Amanero, USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Amanero,DEV=0
Combo384 Amanero, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Amanero,DEV=0
Combo384 Amanero, USB Audio
IEC958 (S/PDIF) Digital Audio Output
Please help to tell me how to solve it, just need to adjust ALSA configuration or need kernel modification, I'm not sure about it, thanks for your support!
