Bose Cinemate not producing sound for cable box, but works for Bluray on new Smart TV?

[coppolino9]

Hello. I have an older Bose Cinemate 1 (only RCA cable output). I just purchased a new Smart UHD TV that ONLY has optical/HDMI inputs. I bought a digital/analog converter from RCA to Optical, but I only get sound when the input on the TV is selected for the HDMI for the Bluray, and not the HDMI for the Cable box?

 

[americanaudiophile]

Check that the audio settings for the TV and cable box are set for PCM stereo. Most DACs won't accept a bitstream 5.1 input so no sound.

 

[coppolino9]

That's totally what it was. It was under 'advanced settings', and had to change to PCM under a separate drop down. Thanks!