Air conduction hearing-aid measurement methods suitable for specification and tolerance purposes. Includes output sound pressure level (SPL) with a 90-dB input SPL, full-on gain, frequency response, harmonic distortion, equivalent input noise, current dr
ANSI S3.22-2003 history
2003ANSI S3.22-2003 Specification of Hearing Aid Characteristics
1996ANSI S3.22-1996 Specification of hearing aid characteristics