Audio¶
FlexKVM transmits audio bidirectionally between the target host and your browser via a USB virtual sound card (UAC) — the host's system audio streams back to your computer, and your microphone goes to the host. When enabled, an audio device called FlexKVM Audio appears on the target host.
Toggling audio causes a brief USB disconnect/reconnect — mouse, keyboard, and disk mount will briefly drop and recover. This is normal.
Audio Status¶
The audio icon in the top bar reflects state:
| Icon | Meaning |
|---|---|
 | Both microphone and speaker enabled |
 | Microphone only |
 | Speaker only |
 | Disabled or not connected |
Audio Menu¶
Click the audio icon to open the menu.
Status¶
| Status | Description |
|---|---|
| Connected | Normal |
| Not connected | Refresh the page or reconnect the remote display to restore |
| Disabled | Audio function is turned off |
Audio Switch¶
Master toggle. When enabled, a FlexKVM Audio device appears on the target host. When disabled, the sound card is removed — both microphone and speaker stop.
Microphone¶
When enabled, your computer's microphone audio is sent to the target host.
On first use, the browser will request microphone permission — click "Allow".
Speaker¶
When enabled, you can hear the target host's audio.
Target Host Settings¶
After enabling audio, go to the target host's system sound settings:
| Purpose | Select device |
|---|---|
| Playback (hear host audio) | FlexKVM Audio as default playback device |
| Recording (speak to host) | FlexKVM Audio as default recording device |
- Windows: Right-click speaker in system tray → Sound settings → select output/input
- macOS: System Settings → Sound → Output/Input
- Linux: System Settings → Sound → Output/Input
FAQ¶
Microphone not working? → ① Does the browser have microphone permission? ② Are both the master switch and microphone switch on? ③ Is the host recording device set to FlexKVM Audio?
Speaker not working? → ① Are both the master switch and speaker switch on? ② Is the host playback device set to FlexKVM Audio? ③ Is the host actually outputting audio?
Static or delay? → Normal for network transmission. Try improving your network environment.