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On sound card, Set the first knob all the way to the right.

Adjust audacity nivel de grabación:

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3.1

Ask patient to produce a comfortable /a/

• Check gain to flashing green line -12 to -24
• If patient's comfortable /a/ is close to the upper range, lower the gain

3.2

Ask patient to say a louder /a/ to make sure it's still within range.

• visual cue: flat upper limit on the waveform