Harmonic Distortion Measurements in the Presence of Noise Download

Description:

Harmonic distortion measurements are usually performed on passive components like
loudspeakers and with high test tone amplitude on active components like amplifiers.
The validity of the distortion measurement result is based on the assumption that
eventually present wideband noise has no influence on these results.

However, there are some digital or mixed signal audio devices with extremely low
harmonic distortion like bitstream A/D and D/A converters and there are other devices
with relatively low signal to noise ratio, like e.g. hearing aids at low input levels.

File Size:

265.43 Kb

File Author:

Rohde & Schwarz