Which tool can be used to monitor oral versus nasal speech effectively?

The stethoscope is a suitable tool for monitoring oral versus nasal speech because it allows the clinician to listen to the sound quality produced during speech. When using a stethoscope, one can detect variations in airflow and resonance that occur in nasal versus oral speech. This is particularly important in evaluating conditions such as cleft palate or other speech disorders where the ability to control or direct airflow through the oral or nasal cavities is affected.

While electropalatography, a dental mirror, and low-tech feedback systems serve useful purposes in speech assessments, they do not focus specifically on auditory feedback of nasal versus oral resonance in the same way a stethoscope does. Electropalatography provides visual information on tongue placement and contact with the palate during speech, but it does not give direct auditory feedback. A dental mirror allows for visual inspection of anatomical structures, while low-tech feedback systems may involve recording or simple auditory cues that could help in speech production but do not provide the direct auditory assessment that a stethoscope offers.