Specifications

2.41

Applications Manual

Revision 1.11Prism Sound dScope Series III

THD+N at each, and produces a plot of the results for both channels.

Specification

Across the frequency range, the THD+N for line outputs should be less than –60dBr and for

headphone or speaker outputs, less than –57dBr.

4.2.1.9 THD vs Level

dScope Configuration:

THD vs Track 24.dsc

Track Number:

Corresponding AP Test File:

2_thdlvl.at2

.ac3 Test File:

2_aswp4ka.ac3

Duration:

120 sec

Test Signal Description:

0dBFS to –120dBFS sweep at 4kHz

Description

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

EUT

against level, from 0dBFS to –120dBFS, at 4kHz.

Method

Play Track 24 and then immediately click the

[OK]

button to start the test.

The dScope plots THD+N against time for both channels during the 120s of the test track; this