Meyer Sound SIM 3 User's Guide download pdf (Page 99)

CHAPTER 5

The Measurements

Figure 5.8. Delay Finder trace of two sources at approximately 2:1 ratio

5.4. FREQUENCY RESPONSE

5.4.1. Overview

Frequency Response measurements display the transfer function between the various mea-

sured components of the sound reinforcement signal chain in the frequency domain. The Fre-

quency Response measurement graphically shows the difference in the audio signal between

two points in the signal chain.

The measurements show the following:

■ Processor Trace — how the signal from the Console (source) is affected by the

processor signal path, showing any EQ changes and ﬁlters.

■ Room Trace — how the signal received at the particular measurement microphone -

including the effects of other loudspeakers and the architecture of the room - differs from

the signal from the Processor feeding the ampliﬁer/loudspeaker.

■ Result Trace — starts with the Console (source) and shows the difference between

it and what is received at the microphone - containing the effects of the processor,

the loudspeaker, and the room. The phase response is shown in each of these views,

with the Result view showing the combined phase effects of the processor and the

loudspeaker in the room.

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Meyer Sound SIM 3 User's Guide Page 99