You can use Dobly ProLogic or other built-in settings to hear multi-channel audio on the receiver but the difference is notable when you use bitstreaming instead.Įnabling bitstreaming on your media player will send multi-channel audio without any decoding to the receiver.
While most sound cards and integrated audio chips on computers are capable of this, if your computer lacks real-time encoding you will be sending 2-channel audio to your A/V receiver even when the source on your computer has 5.1 or more channels. With MPC-HC and the majority of media players, the default settings in a setup using digital or optical audio outputs will downmix multi-channel sources to stereo and then the sound card/chip will output a multi-channel format to your A/V receiver. Most of the time this doesn’t matter if you have a sound card or integrated audio chip capable of doing real-time encoding to 5.1 or more channels. This is by design because most people have two-speaker setups and they wouldn’t be able to hear audio properly without the stereo downmixing. Instead, Media Player Classic Home Cinema (MPC-HC) downmixes that audio stereo. What this means is that if you have an external A/V receiver you are not sending it audio in multi-channel formats like AC3, DTS or HD audio like Dolby TrueHD or DTS-HD. If you use Media Player Classic Home Cinema as your default media player chances are you are not aware it doesn’t output multi-channel audio in bitstream form by default.
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