Olympus LS-100 About the Lissajous measurement, What is a phase difference?, Home Lissajous

Models: LS-100

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About the Lissajous measurement

In facilities for sound recording (such as broadcasting studios), the distance between a microphone and a sound source is automatically measured from the phase difference. The Lissajous waveform helps you obtain the optimal positioning of a dynamic microphone or a condenser microphone.

What is a phase difference?

A slight difference between two sound waves is

 

called a phase difference. The sound is equally

L

fed into the left/right sides of the microphone if it

 

is directly in front of the sound source. However,

R

a slight time difference is produced between

 

the left and right channels if the sound source is

A phase difference

slightly off either to the left side or right side of the microphone.

of 90 degrees

Use the lissajous measurement to perform optimal sound recording.

 

This function operates in accordance with the settings set in [Input Select].

Connect an amplifier to the recorder

2

[Home] { [Lissajous]

1 before starting to measure.

 

When using a dynamic microphone or

 

 

 

condenser microphone

 

 

 

Loud amplifier

Loud amplifier

 

 

 

Loud speaker

Loud speaker

 

 

The flow of the reference

 

 

 

 

signal

EAR jack

 

 

 

 

 

 

 

 

XLR/standard phone combo jack

 

 

5

About the Lissajous measurement

EN

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Page 69
Image 69
Olympus LS-100 About the Lissajous measurement, What is a phase difference?, Home Lissajous, Before starting to measure