Originally Posted by Dragon_vibe
No Such thing Future Proof, Including Room Correction....
While automated room correction may be a relatively recent invention, Fourier's math has been around since the early 1800's:
and the FFT algorithm version has been around since 1965: https://en.wikipedia.org/wiki/Fast_Fourier_transform
Which all DSP and room correction is based upon, including manual or automated PEQ/DEQ/Phase/Delay functions etc etc.
and to this very day, they haven't changed.
TI was making DSP chips back in the early 80's and prototypes in the 70's. They've been doing it for a while.
The part that HAS changed/improved is the computing power and resolution and power consumption, noisefloor, channel count, and numerous add-on/built-in features.
Originally Posted by Dragon_vibe
No Such thing Future Proof AV Processor in fact No such thing as Future Proof Digital Product Including DACS/Room Correction Devices....
The only thing you can future proof, is spending more cash on Speakers and Amplifiers as this technology will likely hardly change.
That's why firmware and software exists.
Back in the 40's through 60's, Von Neumann and IBM discovered that fixed-design vacuum tube hardware just simply wouldn't do!
One could only imagine how easily-hackable and horribly-confused the world would be today if we needed new hardware for every single Browser and OS security patch, let alone updates and major upgrades.
The CPU is essentially a generic computing unit, it can run many totally different apps, even at the same time, and can run new apps that do new things without changing hardware. If we had to have a Windows CPU and a Chrome CPU and a Notepad CPU etc etc, we'd be in huge trouble.
The only reason Yahama and Sony etc etc etc wants you to buy a new receiver is because they make huge money off of you.
Datasat's and Trinnov's are essentially computers with fancy soundcard adapters attached on the back-plate. When they want to support Atmos or whatever new thing that comes out, they just code the software for it and BAM, the HDMI port supports it.
The only time they need to upgrade the HDMI port is when the number of pins or connector style changes. (Which is far more rare.)
The AVR companies have quite the hardware/chips monopoly game going on. (Because they can, and not because they must...)
The reason why they invent 90 different versions of USB, HDMI, DisplayPort and Thunderbolt is to get you to BUY BUY BUY. You of course already know this!
They also do it with wireless: A, B, G, N etc etc
Gotta force people to want to upgrade somehow... when all else fails they make them backwards-incompatible if people don't adopt the technology they will be forced to do it! (Want the fastest CPU? Gotta have the newest socket and RAM, and blaa blaa.
DRAM, SDRAM, RDRAM, DDR1, DDR2, DDR3, DDR4, RDDR5! Sound familiar? It should!
I mean, I was auto-EQ'ing my room/speakers/subs back in 2001 with computer software.
100lb CRT's are no longer used, and neither are BFD+SPLmeter+spreadsheet, but the EQ is still basically the same concept (make the system play as flat and extended as possible!)
Like the tape? Yeah, I was erasing floppy disks with EQ'ed bass even as far back as that!
YPAO/Audyssey/DIRAC/REW/JRiver/miniDSP are just newer fancier versions of getting the same job done.
I'm pretty certain that 99% of the technology I bought in the last 25 years is now wrapped around a seagull's neck or stuck in a dolphin's blowhole somewhere floating in the ocean, or wherever it is that they put the trash these days! In addition to being totally-outdated and totally-useless, of course.