Speakers

[RobAnt]

For some inexplicable reason, and seemingly without compromising the performance of the speaker set in any way, the 96-24 legend is appearing in the analogue 6 Channel Direct setting.  i..e.:

Input: Direct      96-24

Effect: 6 Ch Direct

Can anyone explain why this might be?  I appreciate that 96-24 refers to DTS, but why would the analogue input selection be showing this legend?

Cheers,

Rob

[timbo4656]

it is there to say that it CAN decocde 96-24

[RobAnt]

Yea - but in analogue 6 channel mode?  Surely it should display that only when a digital input is selected and even then only when it is the selected effect?

But thanks for your reply anyway.

Rob

[kay188]

96/24 is NOT DTS only.

96 is the quality, and the 24 is the bitrate.

The quality and bitrate can also be passed through analog.

It states that, because it does not know if the sound from your PC is 96/24.

And if you are on a digital connection, it will state that whenever it detects the sound is 96/24.

[RobAnt]

Quote

And if you are on a digital connection, it will state that whenever it detects the sound is 96/24.

Unquote

As stated already, I am using the 6 channel direct mode, which is only available using the analogue inputs.  It is not connected via any digital input to the computer at all.

So what are you saying here?  That the kit is sampling the 6 channels of analogue input, by passing it through an A/D converter, then converting it back to analogue through a D/A converter for output to the amplifier?

96 = khz - which can equate to quality I suppose.

The manual states that DTS 96/24 is supported via digital inputs only.  It makes no mention of 96/24 (DTS or otherwise) being available on an analogue input.

Indeed, it states this:

Quote

DTS: Decode the DTS stream using the DTS decoding algorithm (or DTS 96/24 algorithm depending on the bitstream).  Your audio source must have a DTS 5.1 soundtrack. 

Unquote

There is no "bitstream" for it to sample in this case.

Indeed if it was to apply any further digital decoding to the 6 channel direct mode it would be compromising the output as sampling only takes place in the stereo domain, which only requires a single stereo input, not the 6 channels of pre-processed linear analogue actually presented (4 channels would be stripped out).  In short the COMPUTER should/will be processing the digital decoding.  Applying any further digital processing would end up in an ugly mess.  The control box should simply be acting as a straight through 6 channel analogue pre/power amplifier - not a digital processor.

Message Edited by RobAnt on 03-02-2008 05:47 AM

[kay188]

Yaahh...

So what's the problem?

That's exactly what i said. For digital it'll display 96/24 when it detects it's being sent that.



On analog, it displays it because, (in my opinion) that's the best audio quality it can take.



So what are you fussing about digital decoding, and analog?

[RobAnt]

My problem is understanding how you appear able to apply a digital technology to an analogue one.  You don't get bitstreams on analogue.

Why am I seeing 96/24 (digital) when I select the Direct 6 Channel input (which is analogue)?

Quote

That's exactly what i said. For digital it'll display 96/24 when it detects it's being sent that

Unquote

But that isn't what is being sent, and that ISN'T what I said.  I am using the 6 Channel Direct ANALOGUE inputs - NOT one of the digital ones (optical or coax).

It should be displaying 96/24 when I select one of the digital inputs, and it detects a DTS 96/24 digital bitstream from the source - say a DVD player or the digital output on a computer games console or PC, NOT when I select 6 Channel Direct.

Message Edited by RobAnt on 03-03-2008 01:50 PM

Message Edited by RobAnt on 03-03-2008 01:53 PM

[kay188]

Dude i'm NOT applying digital to analog.

I never was.

And the 96khz and the 24bit does NOT apply to digital ONLY.

They go both ways.



CD quality is 44khz 16bit.

So you would SEE how i'm not applying digital to analog.

As it applies to analog as well.


CD quality can also be 96khz and 24bit if it's recorded in high definition.



So what's your problem here?

It JUST says that on the screen because the system can output 96/24.


So i really dont get what you're asking.

[RobAnt]

CD isn't analogue - you will only get 96KHz/24Bits via a digital connection - coax or optical. - it is then processed by a digital amplifiers DA converter into high quality analogue sound to the amplifiers which then boost the pre-amp signal from the DA converter to provide sufficient power to move the speaker cones.

If you use the CD Player's own pre-amp (the phono red & white sockets or the headphone socket) you get an analogue signal - and you won't get any bits as it's a continuous varying waveform - not a string of ons and offs.  Most CD players have onboard DA converters so that the data stream can be converted into analogue in order to drive the headphones amplifier and the analogue output stages - either the standard Red/White phono or the discrete 6 or 8 channels to drive multiple analogue amplifier stages.

In analogue mode (Direct 6 CH) it's like plugging in a cassette tape deck, microphone or even a turntable, but with 6 channels instead of 2.  Think of a cassette tape with a read head containing 6 pickups instead of the usual 2.

96/24 definitely IS a digital presentation of data (which has to be converted via a Digital/Analogue converter) and is not an analogue format.

I'm asking: "Why am I getting a digital message during an analogue input mode?  I am not using the digital inputs on my Z-5400, I am using the 6 channels of discrete analogue.  So far as the Z-5400 is concerned, when it is playing 6 Channel Direct it never sees the digital 96/24 output - the computer is doing the DA conversion, not the Z-5400.

Take a step back and consider what I'm saying carefully.  Let us say I turned those sockets into the 3 separate stereo channels.  Do you think they could accept a 96/24 digital input?  No, of course not.  And the same is true if you combine those three stereo inputs to drive the 6 channels (5.1) of analogue input from the computer.

Rob

Message Edited by RobAnt on 03-05-2008 10:51 PM

Message Edited by RobAnt on 03-05-2008 10:59 PM

[kay188]

HAHA.

I'm not going to waste any more time explaining how you think that 96/24 is only digital.

And yes, i understand CD is digital, but when it's decoded by a CD reader, and outputs the speakers, it's analog isnt it?

I have a program.
It's called Reason.
It's a music prodiction program.
There are options for the audio.

22khz
44khz
48khz
96khz
192khz

Now, my sound card supports the ASIO driver which is 96/24.

I USE analog ALL the time (except movies). Games, music, videos you name it.

I go into reason, i play the demo song that's loaded for me.
I then go and set the quality of the audio.
Whether it's 22,44,48,96,or 192.

And i can CLEARLY tell you that the LOWER i GO.
The worst sounding it is.

As i understand it's digitally processed.
But that's sound quality for you.

I SET the quality to 196khz.
You know what i hear?
I hear static.
As clearly, the system stated 96/24.
Thus the system supports 96/24.
Hence it will play up to that.

You can CLEARLY, i mean CLEARLY when i say clearly, HEAR the difference between 22khz, AND 96khz.

If you cant, then i cant help you there.
The bit rate i believe defines how good the quality is.

That's it. I'm not explaining it to you any further.
As you say it's analog, and it CANNOT detect it, you are correct.

In my opinion, it's placed there to let you know that it can output to 96/24.