PxPixel
New Subjective Tests Challenge Claimed Benefits of High-Resolution Audio - AvNetwork.com

New Subjective Tests Challenge Claimed Benefits of High-Resolution Audio

Author:
Publish date:
Image placeholder title

CHICAGO, ILLINOIS – MARCH 2016: New subjective test files created by ImmersAV Technology (www.immersav.com) strongly suggest that the dynamic range and bandwidth claims associated with high-resolution audio productions do not offer any perception benefits beyond those of the standard CD.

Robert Schulein and Dr. Dan Mapes-Riordan, founding partners of ImmersAV Technology, have just released to the public three tests files that interested individuals can use to judge these claims. Details of these tests are presented at https://youtu.be/SQzNPAdF4aI and include links to the files developed.

Initial tests during the 139th AES Convention in New York and during a presentation to the Chicago section of the AES in November 2015 suggest that individuals listening to these files with a capable playback system found no benefit in dynamic range beyond 85 dB or bandwidth beyond 20 kHz.

According to Schulein, “We welcome interested individuals to evaluate these tests and offer comments. We are not saying that there are no benefits to high-resolution audio, however they do not appear to lie in these areas. Other factors such as anti-aliasing and anti-imaging filters may however have a perceptible influence on differences heard by some. These are areas of ImmersAV’s ongoing research.”

Looking beyond the CD, Mapes-Riordan commented that, “Audio recording, editing and mastering can indeed benefit from sampling rates and bit depth beyond those of the CD due to the DSP processes used, however, once the production has been completed a standard format CD will offer the bandwidth and dynamic range needed to enjoy these aspects of the production.

ABOUT IMMERSAV TECHNOLOGY
Founded in 2010 ImmersAV™ Technology began with the goal of providing consumers with a “You Are There” immersive entertainment experience using innovative microphone production and signal processing techniques. These techniques use patented microphone technology and proprietary ImmersAV Crosstalk Cancellation (CTC) filters.

Visit our Website: www.immersav.com
Find us on YouTube at: www.youtube.com/user/ImmersAV/videos
And be sure to “Like” us on Facebook: www.facebook.com/ImmersAV

Related

Research Finds Audible Differences with High-Resolution Audio promo image

Research Finds Audible Differences with High-Resolution Audio

Listeners can hear a difference between standard audio and better-than-CD quality, known as high-resolution audio, according to a new study published in the June issue of the Journal of the Audio Engineering Society (JAES) by Dr. Joshua Reiss of the Centre for Digital Music, Queen Mary University of London (QMUL).

Image placeholder title

High Resolution Systems Expands With Move to New Headquarters

High Resolution Systems has relocated to larger quarters in Lake Orion, Michigan as part of their current expansion mode. The new 12,000-square foot location combines office and warehouse space for all three companies under the High Resolution banner: High Resolution Engineering, HRS Control and Lightware USA.

Image placeholder title

Will BYOD Pass the EdTech Test?

Bring Your Own Device (BYOD), a component of the consumerization of technology in the business world, refers to the strategy of permitting employees to bring personally owned mobile devices (laptops, tablets, and smart phones) to the workplace with the ability to use those devices to access an organization's privileged information and applications, as well as communicate over the network.