[Solved] Bluetooth Audio Crackling Issue

[javito1081]

Hi,

I have my VM with GPU passthough, also added the internal mobo bluetooth as usb, everything is working fine, until i try to use the hands-free interface of my headphones, like when i try to use it on a zoom meeting or discord, i start getting crackling sound, impossible to understand anything, as soon as i get off the meeting or i manually disconnect the hands free interface of the headset, i hear everything perfectly, but of course i cant use the microphone, i have an Asus Z690 motherboard, i need help to figure this thing out cause i dont understand whats going on, i have tried multiple headsets and speakers and they all have the same behaviour, as soon as i get into something that uses the handsfree interface of the bluetooth device, the crackling audio starts :-(

 

[javito1081]

any ideas? :-(

 

[leesteken]

Maybe try passthrough of the whole USB controller instead of just the USB port/device, because then you have less latency? Also make sure to not give too many cores to the VM, as Proxmox and USB passthrough and other stuff also need CPU time and this increases latency.

 

[javito1081]

Maybe try passthrough of the whole USB controller instead of just the USB port/device, because then you have less latency? Also make sure to not give too many cores to the VM, as Proxmox and USB passthrough and other stuff also need CPU time and this increases latency.

Well, i have an i9 14900k and I have 16 cores assigned to the VM, i use información gaming, I'll try later to reduce it to 8 and see if it help, also I will have to sepárate the IUMMO groups in orden to be able to pass the USB, cause I only see 1 USB when I do lspci and that one is in a grupo with 3 other devices, so ill try all this later and get back with an answer

 

[javito1081]

Maybe try passthrough of the whole USB controller instead of just the USB port/device, because then you have less latency? Also make sure to not give too many cores to the VM, as Proxmox and USB passthrough and other stuff also need CPU time and this increases latency.

Well well, problem fixed hehe, reducing the cores on my VM didnt do anything, problem remained but separating the IUMMO groups and passing throught he entire usb, that did worked like a charm tyvm for ur sugestion i was about to try that b4 u said but was unsure about it, ur coment was the deciding factor hehe