|
|
Joined: Jul 2009
Posts: 144 Likes: 1
Hitchhiker
|
|
Hitchhiker
Joined: Jul 2009
Posts: 144 Likes: 1 |
Discovered this little summary of a talk by Bob Stuart at an AES event last night. Thought it might be of interest.
F80
|
|
|
|
|
Joined: Apr 2004
Posts: 12,733 Likes: 88
Don't Panic!
|
|
Don't Panic!
Joined: Apr 2004
Posts: 12,733 Likes: 88 |
Wow. First time I've seen our sensitivity to pre-ringing quantified. [Bob] showed with reference to psychoacoustic research from the last 10-15 years that traditional models of hearing needed adjustment in view of these later discoveries in auditory processing, for example showing that our discrimination of time is extraordinary, of the order of 10 microseconds implying an effective perception up to 100kHz even if for example steady state tones are inaudible above 12kHz at standard level.
|
|
|
|
|
Joined: Sep 2003
Posts: 547
Paranoid android
|
|
Paranoid android
Joined: Sep 2003
Posts: 547 |
Sensitivity to time differences of 10 microseconds is largely a binaural phenomenon. I think it is a stretch to imply perception up to 100 kHz.
-Tim
RoPieee Allo DigiOne Signature, 561, DSP5000, DSP33, SW1600, M3. HH1 Number 48
|
|
|
|
|
Joined: Mar 2009
Posts: 1,351 Likes: 1
Working on the ultimate question
|
|
Working on the ultimate question
Joined: Mar 2009
Posts: 1,351 Likes: 1 |
I wish I had been there... sounded very interesting! The presentation led to a proposal for a high resolution audio practice which could offer higher sound quality while providing economies in data rates, transmission and storage.
Primary: 818v3+ID41, M6 stereo pair, M SpeakerLink cabling, Sonos+96kHz Cullen, silver DSW
HT: Marantz prepro, 271, DSP3300, 8K SE FL/FR pair, DSP M6x2, DSP320x4 (ceiling), black DSW, 520 RL/RR rear in-walls
Living Room: G65, 640 L/R in-walls, UHD722, MS600
Vac. Home: G61, HD621, 4xDSP3100, DSP3100HC
MDMS:NUC/ROCK+TrueNAS Core 12.0 ZFS file server
|
|
|
|
|
Joined: Apr 2004
Posts: 12,733 Likes: 88
Don't Panic!
|
|
Don't Panic!
Joined: Apr 2004
Posts: 12,733 Likes: 88 |
Sensitivity to time differences of 10 microseconds is largely a binaural phenomenon. I think it is a stretch to imply perception up to 100 kHz. But isn't that exactly the point? (I doubt Bob was claiming monaural 100kHz perception anyway.) We might not be able to hear 100kHz (or even 15kHz), but our *brains* can detect timing differences of that order; which has huge implications for digital filter design, etc.
|
|
|
|
|
Joined: Sep 2003
Posts: 547
Paranoid android
|
|
Paranoid android
Joined: Sep 2003
Posts: 547 |
But isn't that exactly the point? (I doubt Bob was claiming monaural 100kHz perception anyway.) I doubt it too, it's more likely that this is something Martin Colloms inferred from Bob's talk. We might not be able to hear 100kHz (or even 15kHz), but our *brains* can detect timing differences of that order; which has huge implications for digital filter design, etc. Yes, the human auditory system can detect incredibly small time differences, typically 10-20 microseconds when locating a source. Or to put it another way, the time it takes sound to travel 3.4mm.
RoPieee Allo DigiOne Signature, 561, DSP5000, DSP33, SW1600, M3. HH1 Number 48
|
|
|
|
Forums18
Topics31,141
Posts296,885
Members5,503
| |
Most Online4,788
May 22nd, 2026
|
|
|
|
Google Search
|
Meridian Systems
|
Meridian Streaming
|
Restaurant
|
WiKi
|
Duncan's Meridian Info
|
Board Rules
|
Restaurant Rules
