Sound Quality Difference issue: Pico pix max with and without Chromecast/ FireStick Tv

Hi @pravin.v.ingle, this sounds like the Disney+ app sending Dolby audio to the projector. However the projector can only playback stereo sound, it cannot decode Dolby audio. Normally you can change the external device or app to output only Stereo sound. But according to Disney+'s support page the app uses the “highest” level automatically and there doesn’t seem to be a way to force a lower level.

You can try going to the hidden Android settings Device Preferences > Sound > Select formats > and select None: Never use surround sound. Maybe this helps.