Olympus LS-100 LS-100 Instruction Manual (English) - Page 69

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, a slight time difference is produced between R the left and right channels if the sound source is slightly off either to the left side or right side of the microphone. 5 Use the Lissajous measurement to perform optimal sound recording. 1 Connect an amplifier to the recorder before starting to measure 3 The current measurement value appears When using a dynamic microphone or condenser microphone Loud amplifier Loud speaker Loud amplifier Loud speaker Examples of the measurement display: About the Lissajous measurement The flow of the reference signal EAR jack XLR/standard phone combo jack 2 [Home] { [Lissajous] Phase difference 0 degree Phase difference 90 degrees Phase difference 135 Phase difference 180 EN degrees degrees 69