audioXpress - August 2017

14 Munich High End 2017
A Vital Showcase for Trends and Businesses
By Ward Maas
The 36th edition of the Munich High End show, held May 18-21, 2017 at MOC, drew people from all over the world to explore products and trends in the audio industry.

22 Celemony Melodyne 4
A Different Way to Look at Audio
By Fernando Rodrigues
Celemony Melodyne 4 software uses its Direct Note Access (DNA) technology to analyze audio to determine the main frequency content and display those notes so users can manipulate them individually, changing pitches and durations at will.

28 Primacoustic
Recoil Stabilizers-A Solid Speaker Base
By Gary Galo
Primacoustic has attempted to solve the problem of loudspeaker stability and isolation with its Recoil Stabilizers range.

36 Acoustic Solutions
Round-Up 2017
By João Martins
Read about innovative “first-approach” acoustic treatment solutions.

41 Sound Diffusion: The Movement Toward Omnipresence
By Jim DeGrandis
This article discusses recent developments in diffusion, diffusor design and use, the science around diffusion simulation, and contributions for an upcoming standard.

44 Early Reflections
By Ethan Winer
This article explains what “early reflections” are and why they must be avoided if your goal is accurate sound reproduction.

50 New Research on
Low-Frequency Absorption Using Membranes
By John Calder
Destructive room modes in critical-listening and sound recording environments, and the difficulties associated with testing low-frequency absorbers, which are most often used to mitigate room modes.

56 JOCAVI AS Acoustic Shells
Enhancing the Stage
By João Martins

8 Loudness Revisited (Part 3)
Software Tools
By Ron Tipton

30 Acoustics and
Microphone Placement
By Richard Honeycutt

62 Williamson’s
Amplifier Games
By Richard Honeycutt