An audio distortion analyzer is a specialist piece of analogue test equipment that usually costs a lot of money and can be hard to track down on the second hand market. Finding one is a moment of luck ...

A frequency response measurement reports the output levels of a DUT when stimulated with different frequencies of known level. The simplest of all frequency response measurements consists of only two ...

Audio Precision has introduced its new APx555 B Series analyzer. According to AP, the second-generation APx555 offers improved sine generator frequency stability, lower system residual distortion, ...

To provide the increased bandwidth and data-transmission rates necessary for wireless data, voice, music, and video applications, engineers must contend with higher-order modulation schemes that place ...

A critical measure for all audio components is distortion, typically specified as total harmonic distortion (THD) or total harmonic distortion + noise (THD+N). THD is defined as: ... THD+N is the rms ...