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When does the new Xbox and PlayStation 5 come out?

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buzz_lightclick

Well-known member
Nov 21, 2007
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Bitstream for gaming is limited to Dolby Digital or DTS on the Xbox. Not lossless. So when set to BITSREAM you are actually not getting full HD sound.

Compare with PCM (which is lossless HD audio) and see if you notice a difference.
When you select PCM the Xbox is decoding the audio, not the av receiver. Yes I realise that it’s “lossless” audio.
However, When I select bitstream, and “let my receiver decode the audio”, then I get either Dolby Digital or DTS sound, depending on the game I’m playing, and this sounds better than PCM to me.
I guess the trickery in the amp is enough to improve the sound, I do have various other audio parameter options on the amp selected too that boost the audio.
 

bigboss

Moderator
According to this optical cable to the amp is the only option:


I guess you need a 2.1 HDMI amp.
When you select PCM the Xbox is decoding the audio, not the av receiver. Yes I realise that it’s “lossless” audio.
However, When I select bitstream, and “let my receiver decode the audio”, then I get either Dolby Digital or DTS sound, depending on the game I’m playing, and this sounds better than PCM to me.
I guess the trickery in the amp is enough to improve the sound, I do have various other audio parameter options on the amp selected too that boost the audio.
Dolby and DTS are lossy audio codecs so information is lost. Logically, bitstream is always the preferred option, but with game consoles, bitstream actually downscales the audio codec quality. If it was just bitstream without having to opt for Dolby or DTS, that's the best option. Otherwise, PCM is the one to go for, which retains lossless HD audio.
 

bigboss

Moderator
Your amp is the limiting factor here. You can't get HD audio without a new amp. Agree with Buzz: look at the new Denons. Your Pioneer is 190W, the AVC-X4700H is 200W. So you don't need to go any higher than that.
 
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