Experienced players hear no difference from kettle drum vent holes

Evidence

Rossing and coworkers went further, reporting that experienced players could hear no difference with or without the vent plugged. Notably, the player’s ears and the investigator’s microphones were both about 1 meter away from the top membrane. This presumably led to the humidifier pad remark. — Eric J. Heller, Why You Hear What You Hear- An…, 1414

Categorization

• QUESTION: Could the 1-meter measurement distance itself explain why no difference was heard? The short-circuit effect might be measurable only very close to the vent.