I guess my question is what are the better settings? If you select PCM even though you have a home theater system or soundbar connected, the sound system will only receive 2.0 channel sound and the result will not be multi-channel surround sound, even if the sound system is capable of multi-channel PCM audio. Bitstream would give you the best sound. By using our Services or clicking I agree, you agree to our use of cookies. edited 9 months ago. I just purchased a Bose Soundbar 700 and set it up and starting testing some blu-rays but I came across a couple of options that I’m not sure about. PCM transmits a two-channel signal over digital optical or coaxial. I also have a DVD player hooked up on passthrough to the TV via a soundbar. My speakers say they support DTS and Dolby Digital. I would go Arc one Optical, it support much higher bandwidth than optical. Connect your console to your TV using the provided HDMI cable, and then connect your TV to your stereo receiver or soundbar using the TV’s optical (S/PDIF) out port. Usually when you set your TV audio type you either choose between PCM stereo or surround sound. And does everything plugging into the TV then going to the soundbar make a difference? I cant tell if this soundbar is 5.1 or what, but if its just a 2.1, go PCM from your PS4. … If you set the Blu-ray Disc player to output audio as PCM, the player performs the audio decoding of all Dolby / Dolby TrueHD and DTS / DTS-HD Master Audio related soundtracks internally. I have reviewed many posts in the A/V forums and other areas that don't seem to give a definitive answer. However, here is what happens when you choose either setting. PCM is not better than Bitstream format in terms of quality. Definitely keep the PS4 sound output as HDMI. Cookies help us deliver our Services. Is PCM 5.1 achievable over HDMI ARC? After the above I looked into the sound settings on the TV - QE49Q7 - and saw the options for PCM or Bitstream for input and PCM or Dolby for output. In terms of sound quality, whether you set the Blu-ray Disc player's HDMI audio output PCM or bitstream doesn't matter. The difference between PCM and Bitstream is in regards to the device utilized for decoding the compressed format to retrieve the uncompressed PCM data. How to Set Up Surround Sound for a Soundbar or Home Theater System. Bitstream is the technology that PCM used for its framework, but it doesn’t make it that much better or worse. My setup consists of a PS4 Pro and Apple TV 4K into my LG C8 OLED both via HMDI and out to the Bose Soundbar via HDMI ARC (as there are no passthrough ports on the Bose Soundbar). That'll sound the best. Not clear if bitstream will come out as lossless stereo or not though, that's why I chose PCM. Press question mark to learn the rest of the keyboard shortcuts. With bitstream the sound system uses the speakers the source requires, but with PCM it will use all regardless, unless you manually change it. Does DisplayPort support encoded bitstreaming. Which is better? It’s a 3.1 channel soundbar with rear surround speakers making it a 5.1 total. Although the below discussion focuses on bitstream vs. PCM … Apparently the ‘correct’ settings to use are uncompressed (PCM) for games … Bitstreaming on Blu Rays was fine (sound actually coming early which can be easily corrected using AV sync). I … The Bitstream package is where the PCM data was sourced from. Or does it need to be eARC? Bitstream just means send the data to the next device. Or will it still just recieve the same compressed signal? For a better experience, please enable JavaScript in your browser before proceeding. I cant tell if this soundbar is 5.1 or what, but if its just a 2.1, go PCM from your PS4. For sonic quality I like to keep my audio digital (optical) and let the external device do the surround decoding, but in your case that means you are relying on Logitech control as far as selecting what MODE to play. When I load a Blu-Ray you can bring a menu up within the film that asks you to pick between LPCM or Bitstream Direct? It's not a question of quality between the two. DTS or Dolby is your personal taste. That's a lossless high quality signal in stereo format. Would it sound best if I ran an optical cord from my PS4 straight to the soundbar as opposed to having the sound go into the TV and out the ARC port?
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