You searched for: “pseudacousmas
pseudacousma, pseudoacousma (s) (noun); pseudacousmas; pseudoacousmas (pl)
A subjective or imaginary sensation as if sounds are altered in pitch and quality: Pete became hesitant to talk in public because of his pseudacousma which made him uncertain about how his voice would be heard by others.

The poor acoustics of the auditorium resulted in the symphony conductor's concern that she might be experiencing pseudoacousma.