Windows 10: Audio output is being picked up as an input

I can see why this might happen; it's not directly connected to the speakers. First, I have a USB to XLR cable, then into a guitar pedal, out using a quarter inch, and then an adaptor to headphone jack size, into the speakers. How would I go about having the laptop recognize the usb as an output device?

:)

 

No audio input or output devices found

After the last update of Windows 10, no audio devices are listed

Searching in the device manager: all audio devices say it works fine

The sound setting says: no output or input devices were found.

 

How do I set the output audio as input audio?

I want to set the output audio as input audio, which means that the "microphone" or the audio input picks up exactly the same audio as what the pc itself outputs. On my Win10 computer I managed to do this by setting "Stereo Mix" as the input device instead of "Microphone". However, when I tried the same thing on my Win 11 computer, it does not work——the "mic" does not pick up any sound, neither from the computer itself (which is intended) nor from outside, even when I am playing some music on my pc. I have already set input volume as 100%. When I set "microphone" as input device though, the mic perfectly picks up outside sound without anything going wrong. What should I do?

 

HFP devices no longer show as audio input or audio output devices (Win11)

All of my HFP Bluetooth devices are no longer available as audio input or output devices. A2DP devices still show as audio output devices.

I've tried:

• unpairing and repairing BT devices (Sony MDR-ZX770BN and a custom ESP32-based device)
  
• removing all BT devices (including hidden devices) from Device Manager, including the RFCOMM and SDP services and Intel wireless driver, etc. and reinstalling
  
• removing the Audio devices (Realtek) and reinstalling
  
• sfc /scannow (no problems found)
  
• checked registry Computer\HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Bluetooth\Audio\Hfp\AudioGateay and ..\HandsFree and both show registry value Enabled=1 (not that I've seen any diagnostic ever suggest checking these keys)
  
• pairing my headphones to a Win10 laptop, which works fine, and audio input/output devices allow me to select HFP (also A2DP)
  checking the headphones under "Control Panel\Hardware and Sound\Devices and Printers", I can confirm under "Bluetooth Services" the headphones show Audio Sink, and Hands-free Telephony, so SDP has discovered the HFP profile correctly
  
• my ESP32 device also has SPP (serial port) which works fine, and the headphones can use A2DP just fine, so Windows can use the other BT profiles on these devices
  
• running troubleshooter for Audio Input and Audio Output devices - the troubleshooter finds nothing, and doesn't even list the HFP device as an audio device
  

HFP was working OK before Christmas. At some point since then all HFP devices no longer show as audio input/recording sources or output sources.

My laptop is a Lenovo Thinkpad L15 gen 3, roughly 1 year old. Windows and drivers are all up-to-date.