Practical Test & Measurement: Measuring HDMI Audio

From its origins in 2002 as a new, smaller connector for HDTV, improving upon DVI and adding audio capability and consumer electronics control functions, High-Definition Multimedia Interface (HDMI) continuously evolved over the years to become one of the most widely adopted interfaces. Not surprisingly, testing audio over HDMI, given its multiple options and configurations, still induces many questions when it comes to measurements. This article provides practical answers to those questions.

MUTEC GmbH, the Berlin-based manufacturer of professional audio technology for studio and high-end applications, announced the launch of the MC1.2+ bi-directional real‑time converter and signal transfer between computers and/or digital audio hardware. The MC1.2+ improves the sound quality performance via USB and features multiple interface ports including AES/EBU and S/P‑DIF. It supports USB‑power allowing mobile operation, mains voltage (internal), and DC via external PSU.