[Experiences with the distorted Freiburg Speech Test--diagnosis and rehabilitation of hearing disorders].

In accordance with the description of an extended technique of distorted speech at different values - 15 dB, - 10 dB, - 5 dB and 0 dB with the plotted frequency characteristic, we used the procedure with different kinds of sensorineural hearing loss. The method analyse the peripheral hearing system very simply. In cases of acoustic tumours the quotient is very large and it is better to reduce the degree of distortion (-10, -5 and 0 dB). Generally, it is possible to detect the phase of degeneration of the inner hair-cells and afferent nerve fibres in all cases of sensorineural hearing loss. The test is also of very good help in fitting hearing aids because method picks out the hard hearing persons with very disturbed discrimination of speech.