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Measurement of reverberation time

A small excursion on how to determine the reverberation time RT60.

Measuring the reverberation time and early decay time EDT

To determine the reverberation time T, the decay of the sound field, as shown in the figure, is evaluated between -5 and -35 dB below the sound pressure level of the continuous noise. It is extrapolated to -60 dB.
To measure the early decay time EDT, the decay process is to be registered between 0 and -10 dB by definition and likewise extrapolated to -60 dB.
In modern measurement procedures, continuous noise is replaced by an exponential sweep. Using the sweep, the impulse response is measured and the reverberation time is calculated.

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Directionality of musical instruments

Here you will learn about the acoustical directionaliy of musical instruments

Sound source localization

All about the angle of incidence and its perception.

Perceived loudness

What do I have to know about the frequency dependency of the ear?

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