Spotlight Videos

Heyser Lecture

Special Events Presenter: John Meyer, Meyer Sound Labs - Berkeley, CA, USA The Richard C. Heyser distinguished lecturer for the 145th AES Convention is John Meyer. Taking the Room Out of the Loudspeaker: New Tools for Transparent Reproduction With few exceptions, loudspeakers are not used in a free field environment but rather in an enclosed acoustical space. This is inherently problematic as an acoustical space behaves in a manner similar to that of loudspeakers, making it difficult to separate the problematic characteristics of each using common measurement tools or subjective listening tests. John Meyer’s lecture will review the history of loudspeaker measurement tools as used both in the free field and in acoustical space, including Richard Heyser’s pioneering TDM methods and Meyer Sound’s own SIM (Source Independent Measurement) systems. A key focus will be on a new multi-component studio monitor that exhibits absolutely flat amplitude and phase response from 27 Hz to 20 kHz. Because this system effectively “takes the room out of the loudspeaker” it opens up possibilities for correlating new objective testing techniques with subjective listening observations. The lecture also will discuss a new test signal known as M-Noise, which effectively mimics the dynamics of music and avoids inherent weaknesses in the use of pink noise with third-octave analyzers when testing loudspeaker systems used for music. The retrospective will touch on other benchmarks in the quest for linear sound amplification, including the early Glyph large-horn systems, the Grateful Dead’s “Wall of Sound” and the HD-1 high resolution studio monitor, a trusted near-field reference that remains in Meyer Sound’s product line 29 years after its introduction.

John Meyer

3/27/2019 8:21:26 PM

Podcast Production Roundtable

Broadcast & Online Delivery Chair: Rob Byers, Minnesota Public Radio | American Public Media - Minneapolis, MN, USA Panelists: Haley Shaw, Gimlet Alex Trajano, Audible Building on the success of last year’s session, Rob Byers (American Public Media and Criminal) will host a special roundtable discussion on the art and techniques of podcast production. Specifically focused on productions that tell stories, this session will bring together engineers, sound designers, and producers to talk about their top-of-the-charts work. The conversation will range from specific mixing and sound design techniques to considerations for an audience that is often listening on smart speakers and mobile devices. Join us for a unique view in to this blossoming format — and come with questions!

Rob Byers

3/27/2019 8:21:26 PM

The Ravages of Time

Applications In Audio Presenter: Bruce Black, MediaRooms Technology LLC - Ventura, CA, USA It's easy to think that once we've tuned a room, all it's acoustic issues have been dealt with, and it will provide an honest and correct listening environment. Unfortunately, this is not necessarily the case. This tutorial shows how Real Time Analyzers leave out critical information that can lead to a classic Dr. Richard Heyser situation, where the RTA measurements look good but the room sounds terrible. Unless we are aware of what an RTA DOES NOT tell us, as well as what it DOES, it's easy to get confused when the room sound does not correlate to what the RTA display says it should be. This can leave us confused and unable to make the proper corrections to our rooms. This presentation includes actual case histories where causes and remedies are explored in detail.

Bruce Black

3/27/2019 8:21:26 PM

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