A room’s fundamental resonance can be found by singing different notes.

Evidence

Eigenton is the German word used to refer to the fundamental resonance of a room, produced by the reflection of sound waves between parallel surfaces. It can be located empirically by singing different notes. The room (particularly an empty one) will resonate quite loudly in unison with the voice when the right note is sounded. — Schafer, Murray R, The Soundscape- Our Sonic Environment…, 919

Categorization

• DEFINE: Defines ‘Eigenton’ and gives a practical method for locating room resonance by ear.
• SEED: The empirical singing method could anchor a field-guide piece on how to acoustically map a room by voice.
• corroborated: 2 independent passages support this claim — Schafer, Murray R, The Soundscape- Our Sonic Environment…, 919
• XREF: connects to: An open mouth amplifies faint sounds by serving as a resonant chamber — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 191; A resonant cavity can isolate a single frequency from complex sound. — Schafer, Murray R, The Soundscape- Our Sonic Environment…, 920

Broader Connections

• A resonant cavity can isolate a single frequency from complex sound. #expands (0.85) — Schafer, Murray R, The Soundscape- Our Sonic Environment…, 920
• An open mouth amplifies faint sounds by serving as a resonant chamber #expands (0.70) — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 191