Troubleshooting OPTIK TV audio issues

If you are experiencing the following audio issues:

This loss of sound may be the result of:

Is the problem related to one channel in particular, or to many channels?

If the checks above are inconclusive, check the sound options on your TELUS set-top box:

If you are using an HDMI cable, also check the aspect ratio (picture size and shape) configured on your set-top box:

If you continue to experience the issue: