Question

I cast my computer to my tv but the sound is coming for my computer not my tv

Answer 1

Usually that means the audio is still routed to your computer instead of the TV. I can help — quick checklist then specific steps depending on how you’re casting:

Quick checklist (try these first)
- Make sure the TV volume isn’t muted and is turned up.
- Restart the cast target (Chromecast/TV) and your computer, then try casting again.
- Make sure your computer and the TV/cast device are on the same Wi‑Fi network.

If you’re using Chrome/Chromecast
- If you cast a Chrome tab: audio should go to the TV automatically. In Chrome click the three dots → Cast → choose the device. If it still plays on the computer, in Windows check the per‑app output (steps below).
- If you choose “Cast desktop”: on Windows there is a “Share audio” checkbox in the screen share dialog — make sure it’s checked. On macOS Chrome does not support sharing system audio when casting the desktop.
- In Chrome update to the latest version.

Windows (HDMI or cast)
- For HDMI: right‑click the speaker icon → Open Sound settings (or Sounds) → Playback devices. Select the TV or HDMI device and click “Set as Default”.
- For Chrome cast or if a specific app’s audio still plays on the PC: Settings → System → Sound → App volume and device preferences. Set the app (e.g., Chrome or your media player) output to the TV device.
- If you cast the desktop from Chrome, ensure “Share audio” is checked in the dialog.

macOS (HDMI, AirPlay, Chromecast)
- For HDMI or AirPlay: Apple menu → System Settings (or System Preferences) → Sound → Output. Select the TV or Apple TV.
- For Chromecast: Chrome on macOS cannot natively share system audio when you cast the whole desktop. Workarounds: cast the specific Chrome tab (tab audio is sent), or use a third‑party audio routing tool (BlackHole, Loopback) to route system audio — more advanced.
- If using AirPlay to Apple TV, click the volume icon in the menu bar and choose the Apple TV as output.

If using a different method (Miracast, DLNA, smart‑TV app)
- Miracast usually mirrors both video and audio; check TV input and Windows playback device.
- If you use a TV app (Netflix, YouTube) directly on the TV, audio will play on TV. If you cast from the app, make sure the app is casting (look for the cast icon).

If these don’t fix it, tell me:
- Are you on Windows or macOS?
- How are you casting (Chromecast/Chromecast built‑in, HDMI cable, AirPlay, Miracast)?
- Are you casting a Chrome tab, the whole desktop, or a particular app?

With that I’ll give exact steps for your setup.