Featured content

You may have seen the excellent performance of Radiant Acoustics Clarity 66 in my recent review. Speakers are too costly to send back to EU. So I suggested to the company that it may make sense to sell them in US. If you are interested, please make an offer and I will pass it on to the company to see if they accept. Thanks,

What a deserved and high honor of Order of Canada for Dr. @Floyd Toole as a Member! https://www.gg.ca/en/appointments-order-canada-june-2026 "Floyd Edward Toole, C.M. Ottawa, Ontario Acoustics researcher Floyd Toole transformed global understanding of sound reproduction through groundbreaking work at Canada’s National Research Council. His innovative loudspeaker measurements and NRC facilities spurred Canadian loudspeaker manufacturing, and he advanced room acoustics and loudspeaker...

To be presented at Bay Area AES section: From presentation intro: Hilton Garden Inn CupertinoCupertino, CA Wednesday, April 29 • 5 PM - 7:30 PM Overview Join us for an evening of Headphone Distortion Audibility with industry experts, Dr. Sean Olive and Steve Temme. Sean Olive will present ‘The Perception and Measurement of Nonlinear Distortion in Headphones’ a paper co-written with Pierre Lelièvre, Rtings.com. In this paper, they measure the thresholds and perceived sound quality from...

This is the first in a series of FAQs for Audio Science Review. 1. Who created Audio Science Review? The founder is Amir Majidimehr. You can find out more about me by clicking on my background link in my signature. Briefly, I have had a long career in computing, audio, video and imaging software and hardware. This enables me to assess performance of audio products at a deeper level. 2. What is the origin of Audio Science Review (ASR)? Original aim was to bring published audio research...

Hello fellow ASR members! Just wanted to take a moment to acknowledge some less obvious, but valuable efforts that go on here. I have seen a few posts since I resumed moderator duties that emphasize that there is only one ASR moderator now. While it is true that I am the only current holder of the moderator badge, the resulting activity is greatly improved by: Several key supporting members that add their time and effort to improving moderation here. Some bring added experience and others...

https://pnw.aessections.org/ Yeah, it's me. If you can get there in person that would be better, I think. Yes, I know Saturdays are precious.

We have had recent issues come about regarding use of AI in member posts. I personally think this technology can be useful to us. And at any rate, hate having to police members left and right on what they post. That said, here are my thoughts: 1. If you are going to use AI, make it absolutely clear up front before just copying and pasting AI content. 2. Show the prompt you used and the engine (ChatGPT, etc.). Both of these can be useful to understand how the answer came about. 3...

I recently watched a fascinating discussion between Dr. Jennifer Groh (Duke University, Psychology & Neuroscience) and Andrew Huberman that offers deep insights into how our brains encode and integrate sights and sounds, and what this means for perception, attention, and cognition. The conversation goes far beyond typical pop neuroscience, drilling into topics directly relevant to audio science: dynamic sensory maps in the brain, how the superior colliculus merges auditory and visual space...

In my curator role, am cross posting the following content as it is embedded in a related thread and want to highlight for members that may have missed. :cool: While his books are worthwhile reading, this is a great way to get an overview direct from a major audio researcher and valued contributor. Thanks Floyd!

I have been getting a number of career/job advice from people I know. I find that the current online system of recruiting people maddening. Seems that resumes get filtered randomly and never get to hiring managers. So applying to jobs seems at best a random process. I thought I create this thread to give people who want to have a job an opportunity to post here with the hope that someone reading the forum either has an open position, or can help others find one. Conversely, if members...

Questions regarding how the Klippel NFS works are raised in many of Amir's speaker reviews. Thomas has suggested starting a thread on this topics and here I am. I am starting this thread with a brief description of the basic principles behind the NFS. You can find much further details on the theory in the DIY 3D speaker scanner thread. What the Klippel NFS systems does is to approximate the speaker under test into the sum of a number of spherical wave expansion functions (source): These...

It is resonances that are mainly responsible for lack of neutrality in loudspeakers, so the first task for competent speaker designers is to minimize them. After that spectral balance and directivity control need to be attended to. The industry standard measurement method, used by Amir, which had its origins in Canada while I was at the National Research Council, is excellent at revealing resonances. It seems that, historically, this company has studiously ignored the science and gone the...