SPDIF - Sony/Philips Digital Interface

[emanresu]

Any chance we could pursue 64bit virtual audio cables and such? Would 64bit work on SPDiF / HDMi ? I have found only one Windows software supporting it live, but I need virtual audio cables, 64bit enabled.

Good job, thinking about the future

 

[Ferather]

You mean supporting a 64 bit OS or 64 bit audio out? If 64 bit audio out, does that actually exist in mainstream?
No HDMI or SPDIF don't currently have 32 bit capability, although both can if updated.

SPDIF and HDMI both run on HDA, so if HDA cannot do 64 bit, then nor can anything attached to it.

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TOSLink certainly has the bandwidth to do 64bit, @ 125mb max, but no supporting hardware.

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You would need a replacement to HDA, that is also HDA compatible, maybe UDA, or parallel HDA.

Here you can see Realtek (Optical) and AMD (GPU, Monitor) are HDAUDIO (HDA).




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[emanresu]

Woopwoop! There's one software..
Must be Windows XP times (best Kernel sound / tob)
PM!

 

[Ferather]

I updated my post a bit, the last image you can see the minimal circuiting (which is why SPDIF produces better sound) and the digital converters for SPDIF over TOSLink.
If you managed to get HDA to output 64bit audio, the DAC's (and other) on analogue need to support it, and the digital converters on digital.

The reason we use Dolby-DTS on SPDIF is because of the converters (and maybe other bits), else you get only 2 channel.
6 channel PCM is compressed (FX system) and the converter set to bitstream mode.

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Please note, many drivers have software (APO's) on analogue, but not digital, comparisons will be far from fair.

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[emanresu]

Is there a way to get HDMI to support 88.2 and 176.4?

And which DTS Sound Unbound versions do you have stocked?

If I have a particular version installed already, is there a way to .appx it "back" to being an installer?

 

[Ferather]

Wrong thread for DTS talk, but for HDMI 88.2 - 176.4 needs to be supported by the receiver, monitor.

In some cases drivers can knock off support for some samples even though the hardware does it.

 

[Ferather]

Digital audio sample rate converter: S/PDIF for N64, MV1C << "For optical output to work reliably at 192 kHz a 25 Mbps optical transmitter should be used"

DTS-HD MA, max bitrate: 24.5 Mbit/s

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Z-Systems OptiPatch+ | Pro Audio Solutions << "...for a total of 120 input channels and 120 output channels."

Z-Sys Optipatch+ 15 Channel Digital Audio ADAT/TOSlink/SPDIF Detangler Router | PicClick
Z-Sys Optipatch+ 15 Channel Digital Audio ADAT/TOSlink/SPDIF Detangler Router | eBay

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WM8805 | Cirrus Logic | CS8416 | Cirrus Logic

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The newest consumer standard, capped by HDA:

15 x 96k = 1,440k total aggregates, achievable.
8 x 192k = 1,536k total aggregates, normal.

 

[emanresu]

See ZonePlate (download works).
Can this aid you/us/light?

Tobybear Productions

and

VSTHost

VST Host Description

www.hermannseib.com

 

[Ferather]

Consumer level programmable 15 channel SPDIF [2.0] transmitter, S/PDIF Transmitter (SPDIF_Tx) (infineon.com):




Now for OEM's to catch up. 15 x 96k @ 24b on any HDA device.

 

[emanresu]

Yup

 

[Ferather]

Anyone with a Wiki account please update, both officially out of date, do not reference consumer standard then not update to the current:

S/PDIF - Wikipedia | and | TOSLINK - Wikipedia

It's like referencing HDMI 1.0 standard limits for HDMI 2.0.

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3.1 mbps (1983) || 9.2mbps (~2008) 'based on transmitter, 2x 192k @ 24b' || 125mbps (2008+) '~37mbps based on HDA limits, 15 x 96k @ 24b'

HDA and transmitter limits and are NOT SPDIF or TOSlink limits. Below we can see that parallel HDA still does hit the maximum.



Current consumer standard allows for 15 x 192k @ 24b, which is too much for HDA:

 

[emanresu]

*Church bells ringing in the distance...*

 

[Ferather]

Image updates (note, the digital converter in the first image is the transmitter-receiver, a chip):