Hi Bluewave,
I just installed the OPA14 (latest version) after I lost track of what I have changed. I can say that OPA14 makes integration of Hifiberry Digi+ Pro2 a lot easier. just need to add some code in default.pa.
since I play a lot of HiRes audio I made some changes to the sound quality setting in daemon.conf. the crackling sound appear when I set higher sampling spec and rate. The crackling sound can be addressed as shown below.
so, my problem now is to see how to remove the high pitch noise when google assistance starts talking and to increase my phone call volume level.
No crackling sound:
name:
sample spec: s16le 2ch 44100Hz
name:
sample spec: float32le 2ch 44100Hz
name:
sample spec: float32le 2ch 48000Hz
Crackling sound: solution is to add load-module module-udev-detect tsched = 0 to remove the crackling.
pi@raspberrypi:~ $ pacmd list-sinks | grep -e 'name:\|Hz'
name:
sample spec: s24-32le 2ch 96000Hz
name:
sample spec: float32le 2ch 96000Hz
name:
sample spec: float32le 2ch 48000Hz
I think it takes collective experience to find the solution here. I will continue to test.
I just installed the OPA14 (latest version) after I lost track of what I have changed. I can say that OPA14 makes integration of Hifiberry Digi+ Pro2 a lot easier. just need to add some code in default.pa.
since I play a lot of HiRes audio I made some changes to the sound quality setting in daemon.conf. the crackling sound appear when I set higher sampling spec and rate. The crackling sound can be addressed as shown below.
so, my problem now is to see how to remove the high pitch noise when google assistance starts talking and to increase my phone call volume level.
No crackling sound:
name:
sample spec: s16le 2ch 44100Hz
name:
sample spec: float32le 2ch 44100Hz
name:
sample spec: float32le 2ch 48000Hz
Crackling sound: solution is to add load-module module-udev-detect tsched = 0 to remove the crackling.
pi@raspberrypi:~ $ pacmd list-sinks | grep -e 'name:\|Hz'
name:
sample spec: s24-32le 2ch 96000Hz
name:
sample spec: float32le 2ch 96000Hz
name:
sample spec: float32le 2ch 48000Hz
I think it takes collective experience to find the solution here. I will continue to test.