Steam implements AMD TrueAudio Next in Steam Audio

I assume 4 CUs was just an example, and that the actual number of CUs allocated is up to developers to decide. *shrug*

 

1CU per shader engine might have been the minimum granularity for distribution of quantum phased hyperdimensional acoustic processing in the 4th degree words keep coming out and you're still reading this.

 

<<rests my chin on my hands>>

Do, go on!

Regards,
SB

 

Not too excited about going all-in on reverberation thru linear filtering/ convolution, they could even drop sample rate to 22.05 khz or lower then. Recent headphones and IEM don't have much output over 10khz anyway, and for linear there is no need for high sample rate . Anyway it won't be convincing without non-linear stuff . BTW it's said HRTF needs at least/over 96khz .

 

...Why? We're humans, not bats.

 

Not my idea, https://www.princeton.edu/3D3A/Papers.html

I think they want to interpolate between multiple measurements and at the higher rate less can go wrong, besides they sort of admit even ultra-high quality HRTF "scans" (not coming to consumer space anytime soon) are sort of ineffective above 6khz .

 

I thought with the r290 amd added DSPs to the chip for audio ? what happened with that ?

 

*Citation needed

 

yes, that supported products list is looking a little short,
I think all GCN cards, apart from GCN1.0 (and the 7790, which had the hardware but disabled) should support it!?

 

Almost three Xbox 360 just for audio... That's crazy. I rather prefer an external synthesizer do the job and save those valuable CUs for graphics. I used AMD Audio on my RX 570 for a while, though

 

I had a 290X and then 2 390X, but never had an inkling of an idea how to enable or use AMD audio... It never appeared as a sound device on either of my PCs.

 

So they support TrueAudio? The device appears as AMD Audio or something like that, can't quite remember. I used it for a while, disabled the onboard audio and it played through the HDMI port of the GPU.

 

Oh yes... AMD spent more than half the 290/X presentation talking about friggin 3D surround audio, don't you remember? Incredibly frustrating for those who were anxious to hear more of the then-first new high-end AMD GPU in 1.5 years!

Then the initial experience was further marred by the shitty reference design cooler AMD coupled their boards with. Oh those were the good old days!

 

http://www.aes.org/e-lib/browse.cfm?elib=16768
https://www.innerfidelity.com/conte...rman-target-response-curve-various-headphones
https://www.innerfidelity.com/content/headphone-target-response-curve-research-update
http://seanolive.blogspot.com/2016/04/a-virtual-headphone-listening-test.html

 

a synth will only do midi

 

I think that was about procedural audio. Could be the preferable way indeed, yet I'm not really sure it's "samples" that need to be generated, or those "samples" need to be fed into such linear filter array as in TA Next. Seems naiive.

 

96kHz is unrelated to human perception.
HRTFs are really interesting. I encourage everyone with an interest in positional audio to do some experimenting with attaching small omnis by their own ears (on glasses typically) and record away! The result is generally better than typical binaural recordings, possibly because the sound isn’t passed though the outer ear (pinna) of a dummy head, but only your own.

 

Well, headphones can reproduce 10+kHz, but the amount of information there is typically not much to write home about, and most adults are effectively deaf above 15kHz so any signal going on there isn’t going to make much of a difference to most people on most material.