Describe the Bug
Short: Voice call doesn't work, no sound.
Situation:
I've installed sideband to PC(win10) and Android.
I've added my devices to contacts, they see each other on local network, messaging works well (as I can see).
But I tried to make call, device saw other's call and I also can answer, but there is no sound at all.
I've done some experiments: change "profile" (I don't know what it is called, I'm about "MQ", "HQ", "LBW", ...),
toggle "Low-lattency output" option, do calls from PC to Mobile and vice versa, change input/output audio devices in options.
There is result:
"Low-lattency output" did nothing for me.
Changing devices (on Android) also didn't help me.
In "MQ", "HQ" profiles - there is no sound.
In "*LBW" ((Very-)LowBandwidth) profiles - I have sound on PC (but pretty low quality), but no sound at phone.
I've checked logs (on android, see in logs section), and see error, app tries to access some not available function setAllowedCapturePolicy that called in LXST library at Platforms/android/soundcard.py.
I've read about that function in android API, and notice that this function is available only for API>=29 (which is not for me, Android 9 have API=28), but app (or LXST library to be precise) doesn't check API version at that place, and I think this may be the error, cause of there is no sound in call (but I may mistake), thou there is one-way sound at lowbandwidth profiles.
To Reproduce
Call from Android version Sideband to Windows version Sideband (or vice versa), at "*LBW" profiles there is one-way sound on PC, with other profiles, there is no sound at all.
Expected Behavior
I expect that calls work in any mode normally
Logs & Screenshots
[2026-02-17 18:39:52] [Error] An unhandled <class 'AttributeError'> exception occurred: 'android.media.AudioAttributes$Builder' object has no attribute 'setAllowedCapturePolicy'
[2026-02-17 18:39:52] [Error] Traceback (most recent call last):
File "/home/markqvist/Information/Source/Sideband/sbapp/.buildozer/android/app/LXST/Platforms/android/soundcard.py", line 681, in _connect_stream
AttributeError: 'android.media.AudioAttributes$Builder' object has no attribute 'setAllowedCapturePolicy'
[2026-02-17 18:39:52] [Error] Failed to acquire audio stream for <LXST.Platforms.android.soundcard._Player object at 0x7d6ba56310>
System Information
OS(pc): Windows 10
OS(mobile): Android 9
Mobile: Xiaomi Redmi Note 8 Pro, arm64-v8a
Sideband Version: 1.8.2
Additional context
p.s.: sorry for bad english, I am not a native speaker :(
Describe the Bug
Short: Voice call doesn't work, no sound.
Situation:
I've installed sideband to PC(win10) and Android.
I've added my devices to contacts, they see each other on local network, messaging works well (as I can see).
But I tried to make call, device saw other's call and I also can answer, but there is no sound at all.
I've done some experiments: change "profile" (I don't know what it is called, I'm about "MQ", "HQ", "LBW", ...),
toggle "Low-lattency output" option, do calls from PC to Mobile and vice versa, change input/output audio devices in options.
There is result:
"Low-lattency output" did nothing for me.
Changing devices (on Android) also didn't help me.
In "MQ", "HQ" profiles - there is no sound.
In "*LBW" ((Very-)LowBandwidth) profiles - I have sound on PC (but pretty low quality), but no sound at phone.
I've checked logs (on android, see in logs section), and see error, app tries to access some not available function
setAllowedCapturePolicythat called in LXST library atPlatforms/android/soundcard.py.I've read about that function in android API, and notice that this function is available only for API>=29 (which is not for me, Android 9 have API=28), but app (or LXST library to be precise) doesn't check API version at that place, and I think this may be the error, cause of there is no sound in call (but I may mistake), thou there is one-way sound at lowbandwidth profiles.
To Reproduce
Call from Android version Sideband to Windows version Sideband (or vice versa), at "*LBW" profiles there is one-way sound on PC, with other profiles, there is no sound at all.
Expected Behavior
I expect that calls work in any mode normally
Logs & Screenshots
System Information
OS(pc): Windows 10
OS(mobile): Android 9
Mobile: Xiaomi Redmi Note 8 Pro, arm64-v8a
Sideband Version: 1.8.2
Additional context
p.s.: sorry for bad english, I am not a native speaker :(