1.5 Measuring intensity with Praat


5.1

Open File on Praat



5.2

Zoom in until the view shows the spectogram, seleccionar parte de audio, pulsar " IN "


5.3

From the silence-softest /a/ trials:

  • Select a 1 second segment of silence, put it in Praat and get intensity.


5.4

From the silence-softest /a/ trials:

  • Select a 1 second segment of softest /a/ and get intensity

5.5

Calculate SNR by subtracting the silence intensity from the softest /a/ intensity
(Softest /a/)dB – (silence)dB = SNR

Calculate it in the Redcap Connected Speech instrument.
Ideally SNR is between 20db and 40db.

If SNR is within 20dB-25dB, the session should not be completed. **(Look below at solutions)



Example:softest /a/ 60.34dB - silence 29.98dB = 30.36dB


6