Bitstream question...

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NintendoFan1953

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#1 NintendoFan1953
Member since 2004 • 95 Posts

In my manual it states, "when playing back discs recorded in Dolby Digital, Dolby Digital Plus, Dolby TrueHD, DTS or DTS-HD, the corresponding core stream (Dolby Digital or DTS) are output." What is the "core stream?" I will be using a new receiver that handles all of the new formats of sound. My BD player only has an hdmi output and a coaxial output. Will I be able to pass through a signal that the bluray player doesn't support and have it decoded by my receiver?

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Bozanimal

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#2 Bozanimal
Member since 2003 • 2500 Posts

"Core Stream" is likely referring to the surround sound encoding, meaning it is transmitting the raw audio file encoded with the digital data necessary to send the correct audio to its respective speakers in DTS, Dolby Digital, or whatever other format it's encoded in. If you are using an HDMI, Coaxial, or Optical cable to send your digital audio signal between your source (in this case Blu-Ray) and the decoder (your receiver) it will decode the signal just fine so long as it is supported by the receiver.

In summary: Don't worry about it, just hook up your Blu-Ray to your Receiver with an HDMI cable, and your receiver to your TV with another HDMI cable. Voila!

Good luck,

Boz

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ChubbyGuy40

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#3 ChubbyGuy40
Member since 2007 • 26442 Posts

Bitstream = The encoded surround sound is decoded by the receiver instead of the PS3. Only available in PS3 slims for some reason.

LPCM = Decoded by the PS3 and sent to receivers. This was necessary since first loseless 7.1 receivers that used HDMI for audio didn't decode.

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Mozelleple112

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#4 Mozelleple112
Member since 2011 • 11293 Posts

BITSTREAM IS MUCH BETTER.

At least with The Dark Knight. I just tried it out a few hours ago. Actually my mate suggested it...

The sound quality doubled on my home cinema system. Absolutely incredible hearing the dynamics and rumbling of a shotguns blast. YUMMY.

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ChubbyGuy40

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#5 ChubbyGuy40
Member since 2007 • 26442 Posts

BITSTREAM IS MUCH BETTER.

At least with The Dark Knight. I just tried it out a few hours ago. Actually my mate suggested it...

The sound quality doubled on my home cinema system. Absolutely incredible hearing the dynamics and rumbling of a shotguns blast. YUMMY.

Mozelleple112

That's because your home theater has a better decoder than the PS3 :P

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NintendoFan1953

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#6 NintendoFan1953
Member since 2004 • 95 Posts

So if I send the "core" format (Dolby or DTS) then my receiver which is capable of master audio will then decode the master audio from the BD?

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Mozelleple112

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#7 Mozelleple112
Member since 2011 • 11293 Posts

[QUOTE="Mozelleple112"]

BITSTREAM IS MUCH BETTER.

At least with The Dark Knight. I just tried it out a few hours ago. Actually my mate suggested it...

The sound quality doubled on my home cinema system. Absolutely incredible hearing the dynamics and rumbling of a shotguns blast. YUMMY.

ChubbyGuy40

That's because your home theater has a better decoder than the PS3 :P

Haha you bet :)
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ChubbyGuy40

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#8 ChubbyGuy40
Member since 2007 • 26442 Posts

So if I send the "core" format (Dolby or DTS) then my receiver which is capable of master audio will then decode the master audio from the BD?

NintendoFan1953

Yes if you have a PS3 slim and use Bitstream, your receiver will do the decoding which is probably the better option.

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Mozelleple112

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#9 Mozelleple112
Member since 2011 • 11293 Posts

[QUOTE="NintendoFan1953"]

So if I send the "core" format (Dolby or DTS) then my receiver which is capable of master audio will then decode the master audio from the BD?

ChubbyGuy40

Yes if you have a PS3 slim and use Bitstream, your receiver will do the decoding which is probably the better option.

You can safely remove probably :P My AVR 1911 is hardly anything above mid range (its actually entry level) but the difference was quite huge. it was like DD --> DTS.
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NintendoFan1953

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#10 NintendoFan1953
Member since 2004 • 95 Posts

I don't have a ps3...I have a magnavox NB500MG1F BD player.

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ChubbyGuy40

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#11 ChubbyGuy40
Member since 2007 • 26442 Posts

I don't have a ps3...I have a magnavox NB500MG1F BD player.

NintendoFan1953

Same thing. Bitstream if you can.

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NintendoFan1953

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#12 NintendoFan1953
Member since 2004 • 95 Posts

My manual states that if I connect the unit to a compatible a/v receiver, it will output dolby digital, dolby digital plus, dolby truehd, dts, or dts-hd bitstream via HDMI connection. What about the newer formats? Will it output them in bitstream if my a/v receiver supports it but my dvd player does not?

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#13 Bozanimal
Member since 2003 • 2500 Posts

Your player will always output any format encoded on the disc: It's sending raw data through your digital connection. If the disc supports multiple formats, such as DTS-ES and Dolby Digital TrueHD, you have to select the format you wish to output through the menu system of the DVD/Blu-Ray (under sound or audio options, usually).

Your receiver will decode most any format that it supports. If you output Dolby Digital EX and your receiver supports it, it will decode the data into its respective channels and output the audio to its respective speakers. If you output DTS-ES and your receiver does not support the format, it will typically default to an earlier version of DTS, in this case 5.1 audio, from the DTS-ES signal.

In other words, so long as you hook up all the digital sources correctly, you will always have some form or surround regardless of the format. Generally, though, you want to output the signal supported by your receiver and speaker setup. If you only have a 5.1 audio setup, meaning five speakers and a subwoofer, you will be missing audio if you're outputting a 7.1 signal.

Happy gaming,

Boz

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rastan

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#14 rastan
Member since 2003 • 1405 Posts
Actually the Denon AVR 1911 uses very good decoding chips/DAC's which is why the difference was so noticeable.
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NintendoFan1953

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#15 NintendoFan1953
Member since 2004 • 95 Posts
Thanks Boz!