Loudspeaker Acoustic Measurements in Ordinary Rooms
Type: page
Date: Sep 24, 2025
The Acoustic Response measurement in the APx500 software provides a solution for measuring a loudspeaker's frequency response without an anechoic chamber.
The “Big Six” Audio Measurements – Part II
Type: page
Date: Sep 24, 2025
The measurements of “The Big Six” include phase, crosstalk, and the signal-to-noise ratio. What are they and why are they important?
Setting the APx Generator Level for Arbitrary Waveforms
Type: page
Date: Sep 24, 2025
In this post, we describe the relationship between the Generator Level setting and the measured level for arbitrary waveforms, as well as a procedure to help choose an appropriate Generator Level
THD and THD+N – Similar, but not the same
Type: page
Date: Sep 24, 2025
THD and THD+N. They are closely related, but there’s an important difference between them that is often overlooked.
New Feature in APx500 v5.0.1: Fixed Analog Output Range
Type: page
Date: Sep 24, 2025
Using APx500 software version 5.0.1, users can configure the analog generator to stay in a fixed output range. This is useful for testing acoustic devices and electronic devices with sensitive input
