1. The volume of m sound is -31dB. 2. The frequency is always constant at 120 Hz. This can be different for everyone. 3. The line is long enough, indicating the duration is above 20 seconds, actually 30 seconds. Discovery: A stutterer, especially with severe blocks, can not generate this solid yellow straight line. It means, the diaphram can not push the air in a slower steady state. This causes choking of air and blocks, less oxygen saturation, getting into panic easily. Suggestion: Exercise by the app Keep It Costal. Avoid blocks by the airflow during the exercise weeks.Blocks kill your diaphram balance.