Specifications

2.40

Applications Manual

Revision 1.11Prism Sound dScope Series III

Specification

For line outputs, the response should be within +0.5/–1dB of the 1kHz level from 20Hz to 20kHz; for

headphone and speaker outputs, the response should be within +0.5/–1dB of the 1kHz level from

30Hz to 20kHz.

4.2.1.8 THD vs Frequency

dScope Configuration:

THD vs Frequency Track 19.dsc

Track Number:

Corresponding AP Test File:

2_thdfreq.at2

.ac3 Test File:

2fstplr.ac3

Duration:

60 sec

Test Signal Description:

20Hz to 20kHz sweep at –20dBFS

Description

This test produces a plot of the THD+N of the

EUT

against frequency, at 20dB below

full-

scale amplitude

Method

Click the

[OK]

button to start the test, and then play Track 19.

The dScope senses the 60 logarithmically-spaced frequencies on the test track, measures the