Ps3 Audio Output Via Optical

nigel77

Active Member
Hi
I am going to buy a PS3 to use as a blu-ray player but I'm concerned that the audio output provided by the optical connection will be limited to just standard DD5.1 or DTS 5.1

Does the optical out support any of the new high def codecs such as dolby digital HD or Plus or DTS HD or does the digital optical output not have sufficient bandwidth. to support these formats.

is there any output on the PS3 that will plug into my Denon 2805?


Thanks
Nigel
 

Indiana Jones

Moderator
No optical does not support the HD audio formats, only way to get them is through HDMI.
 

Duncan Harvey

Active Member
IIRC DD+ on BD is just called DD, and the optical connection should allow bit rates up to 1.4 mbps to be used - not too shabby at all really, but yes, HDMI is the only way to get the new formats.
 

nigel77

Active Member
Thanks for that.
Does the PS3 have 2 HDMI outputs then, one for audio and the other for video.

If its' only got one how do you get separate audio from the HDMI to the amp and video to a projector?


Thanks

Nigel
 

Avi

Distinguished Member
Thanks for that.
Does the PS3 have 2 HDMI outputs then, one for audio and the other for video.

If its' only got one how do you get separate audio from the HDMI to the amp and video to a projector?


Thanks

Nigel

No the PS3 has one HDMI. You need an amp that takes HDMI audio/video in and provides a pass through HDMI out to the display. Also means you need an additional HDMI cable.

AVI
 

Duncan Harvey

Active Member
if the HDMI amp only supports video, then in terms of getting full bandwidth 7.1 you are, to coin a phrase "buggered"

It will be DD or dts only via optical.
 

Patbateman69

Active Member
Well the instruction book says the amp supports 7.1, but not through HDMI
So how can it support 7.1? unless it's non HD audio??
 

Gadget Freak

Active Member
Originally posted by Duncan Harvey

IIRC DD+ on BD is just called DD, and the optical connection should allow bit rates up to 1.4 mbps to be used - not too shabby at all really, but yes, HDMI is the only way to get the new formats.

This is incorrect, you'll only get 640 kbit/s over optical, but still an improvement over dvd's maximum of 448 kbit/s.
 

nigel77

Active Member
Hi
Thanks for all the help thus far.
Does anyone know what the cheapest amp would be that has a HDMI pass through / HDMI audio connector to support 7.1 HD audio


Thanks again

Nigel
 
J

jaffa69

Guest
Im not sure if this is the cheapest AMP out there but i have the YAMAHA RX-V1700 and this has HDMI 1.2 and i run both sound and picture from my dvd player into the HDMI and get 7.1 channels of sound when playing DTS ES DESCRETE encoded discs.Its a fantastic amp but may be a little pricey at £900.U may get it cheaper off the net.
 

Indiana Jones

Moderator
Well the instruction book says the amp supports 7.1, but not through HDMI
So how can it support 7.1? unless it's non HD audio??

On standalone HD players you get more audio outputs than just HDMI and optical and one of them will support 7.1 but sadly with the PS3 you are limited to just HDMI for HD audio.
 

Patbateman69

Active Member
On standalone HD players you get more audio outputs than just HDMI and optical and one of them will support 7.1 but sadly with the PS3 you are limited to just HDMI for HD audio.

So in Theory a firmware update could give the PS3 to output 7.1 via Optical?
Although it wouldn't be HD audio??
 

Gadget Freak

Active Member
Originally posted by Duncan Harvey

I should have made my post clearer - yes native DD will max out at 640 kbps but wont some HD tracks downmix to 1.4 or 1.5 mbps, eg DTS-MA or DTS-HD?

You can only get dolby digital plus through hdmi, any other connection and it will default to dolby digital @640 kbit/s.
 

Lord Bunky

Active Member
You can only get dolby digital plus through hdmi, any other connection and it will default to dolby digital @640 kbit/s.

Not so, you can get DD+ through optical, but it uses the DTS decoder (if you have DTS on your amp). All HD DVD DD+ tracks use the DTS decoder @ 1.5Mbps.
 

Gadget Freak

Active Member
Originally posted by Lord Bunky

Not so, you can get DD+ through optical, but it uses the DTS decoder (if you have DTS on your amp). All HD DVD DD+ tracks use the DTS decoder @ 1.5Mbps.

Can you show something concrete to back this up ?
 

Lord Bunky

Active Member
When i play DD+ track on my HD DVD player, it goes to DTS on my amp. How can i back that up? Take a picture?
 

Lord Bunky

Active Member
Can you show something concrete to back this up ?

http://forums.highdefdigest.com/showthread.php?t=828


On Sir Terrence #6



First, the DVD specs limit Dolby digital to 448kbps, all decoders can handle 448kbps. While there are some decoders that can send a 640kbps bitstream, they would be out of DVD spec. This is the reason the 448kbps data rate was used on DVD. While DD+ has the ability to do 6mbps, it is limited to 3mbps on HD DVD and 1.7mbps on Bluray. Most DD+ tracks are limited to 1.5mbps to allow Dts trancoding on the digital outputs for compatibility with current receivers lacking analog inputs.

We cannot currently compare DD+ with Dts on HD DVD. On releases previously using Dts, we cannot verify that they are using an old encoded master or a new one. We also cannot verify if a new master was used to encode DD+ soundtrack.

Not many of us have heard Dts-HD in its purest form. The few bluray movies that have it are trancoded into PCM signals because a HDMI 1.3 connection is needed for this format.
 

Lord Bunky

Active Member
Rob_HD06-17-2006, 02:41 PM
DD+ through HDMI is a non starter right now. There are no receivers or pre-amps with the new audio formats on board as there are no HDMI 1.3 chips to put in said equipment. Perhaps not until late this year.

You'll just have to use 6 analog audio cables to your Denon's external analog inputs.

DD+ or DTS-HD is converted to 1.5 Megabits/sec DTS if you run them through the coaxial or toslink optical outputs.

http://www.hometheaterforum.com/htf/showthread.php?t=236472
 

Lord Bunky

Active Member
http://www.avforums.com/forums/showthread.php?t=510813


From TrevorS

3) Use the 5.1 multichannel for one player and S/PDIF for the other. My guess is you would want to use the multichannel inputs with the BR player since that's the only way you could get the 5.1 channel LPCM track. With the E2, this would also provide you with crosscoding from advanced DD audio CODECs to 1.5Mbps DTS via Toslink -- better than being limited to 640Kbps DD.

There ya go!
 

Gadget Freak

Active Member
So hearsay then ? Not exactly concrete imo. If you read the technical spec from the Dolby website, it says it will default to Dolby Digital @ 640 kbits/s.
 

Lord Bunky

Active Member
Not hearsay, so how comes my amp defaults to DTS....Ask your question on the HD-DVD forum and everyone will say the same.

Dolby aren't gonna say "it defaults to DTS" are they?

By the way, the dolby tracks i have on Blu-ray are on First Blood & Blackhawk Down. Dolby Digital tracks on them are 640kbps. They aren't DD+ so dont get them mixed up.
 

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