If a white noise with a half‐octave‐band suppression placed anywhere from 300 to 7000 Hz is presented at an over‐all sound‐pressure level of about 60 dB for 1 min and then switched off, a decaying, poststimulatory sound similar to a pure tone is heard for about 10 sec. The pitch of the post‐stimulatory tone corresponds to a frequency within the suppressed band.