Verify that your television is set to the correct HDMI input channel where the Chromecast is connected. This occurs because iOS sometimes defaults to the device's native audio output.
Chromecast Setup iPhone Screen Projection Guide
If you are using an older TV or a legacy setup, the Google Cast for iOS app might be necessary, though the Google Home app is the standard for modern configurations. Switching to External Audio To redirect the sound, open the Control Center again and long-press the audio card located in the upper-right corner.
You might be prompted to enter a PIN code displayed on your television to finalize the pairing. Correcting this ensures that the sound aligns with the visuals for a cohesive experience.
Set Up Chromecast with iPhone Screen Projection Guide
iPhone 8 and earlier: Swipe up from the bottom of the screen. Keep your Chromecast unit plugged into the television's HDMI port and a power source to maintain a constant connection.
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