DMAS Design [SPDIF-Optical]

[Ferather]

Note the DMAS design and everything related is 'not' copyrighted, its open and can be used freely. Free of charge!

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I forgot to post this image yesterday. Would be 3 bits total at a time.

 

[Ferather]

I will set the base starting specification as: 256 bit @ 200 mega samples per second | per channel, which is [200 Mbits/s], + filter above 20-22kHz.
If you wanted to support 10 total channels you would need a 2 Gbits/s [RGB Optical] input (+ packets bits if used).

Stereo (2 channel) PCM, 256 bit @ 200 Ms/s = 102.4 Gbits/s, 51.2 Gbits/s mono.

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No ADC, no DAC, no analogue amp, no pseudo samples. A RGB Optical mic, could be directly plugged into a speaker, as long as it has power.
Note, the DMAS uses an alternative form of PCM, still code, but code produced from 255,255,255,X, more directly.

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In terms of the input, if there where 10 channels, there will be 10 individual colour-lumen pulses (bits) + a nil (e.g. white-bright, 11 total bits).
This produces 10 positions for 10 speakers with the same sample interval, channels default to: 1,2,3,4,5,6,7,8,9,10 +.

The second image below would be 8 bits, with off specifying a 0 sample, 0 volts.

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[Ferather]

Basic example of the input, this example is 8 channels, two samples.
In bitrate, its calculated as +1 channel, so 9 bits per sample.

 

[Ferather]

The best way to make sure the input is fully capable of [x] number of channels, do +2 channels as the hardware bitrate (+400 Mbits/s).
In terms of the optical mono speaker outputs (which need no clock), do +20 Mbits/s transmitter and receiver.

A good consumer standard for [Device to DMAS] would be 4.4 Gbits/s (20 channels +2).

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Also note the 8 channel image above this post, did 4096 bits of 256 bit PCM in 16 bits (ignoring all packet bits).
RGB Optical, variable value bit (infinite), means 16 bits could be equal to, example 1024 bits PCM.

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The [input bitrate] is spent on channels and sample rate only, [speaker bitrate] is spent on sample rate only.

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Mono microphone to mono speaker (1:1), mic could be +5, -5, speaker +12,-12 volts.
This example is a simple 8 bits, and does not include 0 position (nil, off).

 

[Ferather]

I am pretty sure the only possible rival to RGB Optical is the Qubit, which also benefits from optical instead of copper.

20CH PCM, 256 bit, 200 MS/s = 1.024 Tbits/s (1024 Gbits/s) | RGB = 4.4 Gbits/s (200 Mbits/s reserved).

Welcome to the optical digital age (non-binary).

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If you are a digital audio company, I suggest you cease analogue R&D, and focus on RGB Optical digital.
In legacy mode, the DMAS main unit will have to add pseudo samples, like a DAC.

No rights required. What is True Sound?

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RGB bits are not encoded or compressed, though as mentioned before the code side can have a format.
The format is intended to reduce the amount of code used in processing-storage.

[255,255,255,X] with a binary length (code) reduction.

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An alternative more advanced approach would be using an optical based SoC (CPU-RAM), direct.