Quote:
Originally Posted by joekewl1971
PCM uses less compression. But you asked about cable. Cable only uses Dolby Digital. To convert it to PCM is not going to improve the audio quality. If you have a digital connection to your surround sound stereo, then you would want to use Dolby Digital, for the 5.1 surround sound that you can not get from PCM. If you have an HDMI hookup to your TV, then it might only accept PCM. That would be the best reason to use PCM.
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Thank you for your time. I do use a digital connection to the receiver via optical. I noticed when I have the output set to DD AC-3, the sound level fluctuates drastically between channels. I am not talking small numbers here. For example, when we watch DiscoveryHD and have the unit set at 15, then we change to TNTHD we can not hear the sound. So we turn it up to 22. When we decide to do back to DiscoveryHD or HBOHD we almost go deaf. It is like being in a warzone with explosions and rocket fire going off beside us. Weird.