Name:   Björn Hagerman
 Title: Docent
   Adress:   Teknisk och experimentell audiologi, Karolinska  Institutet
M45
Karolinska/Huddinge
S-141 86 STOCKHOLM
   Phone:   +46(0)8 - 58 58 01 29
   Mobile:   +46(0) 70 - 356 17 33
   Email:   bjorn.hagerman@ki.se
bjorn@hagerman.se


Participant in the following projects in the Man and Noise network:

Hearing problems among musicians - Influence of noise susceptibility and other factors.


Publications:

Hagerman B.  1976. Reliability in the determi­nation of speech discrimination. Scand Audiol 5, 219-228.

Hagerman B, Lindblad A-C.  1978. Taluppfattbarhet för högtalarsystem vid Arlanda utrikesterminal Rapport TA 91, Teknisk Audiologi, Karolinska institutet, Stockholm.

Hagerman B, Lindblad A-C.  1980. Modulation transfer function and speech transmission index - a method to predict speech intelligibility in Swedish? Rapport TA 100, Teknisk Audiologi, Karolinska institutet, Stockholm.
Hagerman B.  1982. Sentences for testing speech intelli­gibility in noise. Scand Audiol 11, 79-87.

Hagerman B.  1984. Clinical measurements of speech reception threshold in noise. Scand Audiol 13, 57-63.

Hagerman B, Lindblad A-C, Olofsson Å.  1985. Hörselkrav för hydrofonoperatörer. Rapport Teknisk Audiologi, Karolinska institutet, Stockholm.

Hagerman B, Olofsson Å, Lindblad A-C. 1987. Relations between speech intelligibility and psycho-acoustical modulation transfer function (PMTF). Scand Audiol 16, 121-128.

Gabrielsson A, Schenkman BN, Hagerman B.  1988. The effects of different frequency responses on sound quality judgments and speech intelligibility. J Speech Hear Res 31, 166-177.

Gabrielsson A, Hagerman B, Bech-Kristensen T, Lundberg G.  1990. Perceived sound quality of reproductions with different frequency responses and sound levels. J Acoust Soc Am 88(3), 1359‑1366.

Gabrielsson A, Hagerman B, Bech-Kristensen T.  1991. Perceived sound quality of reproductions with different sound levels. Rapport TA 123, Teknisk Audiologi, Karolinska institutet, Stockholm.

Lindblad A-C, Olofsson Å, Hagerman B.  1992. Tone thresholds in modulated noise. I. Level dependence and relation to SRT in noise for normal-hearing subjects. Rapport TA 125, Teknisk Audiologi, Karolinska institutet, Stockholm.

Hagerman B.  1993. Efficiency of speech audiometry and other tests. Br J Audiol 27, 423-425.

Hagerman B, Kinnefors C.  1995. Efficient adaptive methods for measuring speech reception threshold in quiet and in noise. Scand Audiol 24, 71-77.

Hagerman B, Olofsson Å, Cheng J, Svensson E.  1995. Ear muff performance determined by threshold method and by probe microphone method.
Acta Acustica 3, 569-574.

Hagerman B, Olofsson Å, Cheng J, Svensson E.  1996. Ear muff performance in impulsive noise as a function of angle of incidence.
Acta Acustica 5, 763-771.

Hagerman B.  1997. Attempts to develop an efficient speech test in fully modulated noise. Scand Audiol 26, 93-98.

Lindblad A-C, Hagerman B.  1999. Hearing tests for selection of sonar operators. ACUSTICA × acta acustica 85(6), 870-876.

Olsen HL, Hagerman B.  2002. Directivity of different hearing aid microphone locations. International Journal of Audiology 41, 48-56.

Hagerman B. 2002. Speech recognition threshold in slightly and fully modulated noise for hearing-impaired subjects. International Journal of Audiology 41, 321-329. 

Hagerman B, Olofsson Å. 2004. A method to measure the effect of noise reduction algorithms using simultaneous speech and noise.
ACUSTICA × acta acustica 90(2), 356-361.

Poulsen T, Hagerman B. A Nordic Round Robin test on hearing protectors. The influence of the sound field on measured REAT attenuation. ACUSTICA × acta acustica, 90 (2004), 838-846.