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document
Mulders, C.E. (author), Physisch Laboratorium TNO (author)
report 1947
document
TNO Fysisch en Elektronisch Laboratorium (author), Mulders, C.E. (author)
doctoral thesis 1950
document
van den Eijk, J. (author), Kasteleijn, M.L. (author), Afdeling Gezondheidstechniek TNO (author)
article 1955
document
Instituut voor gezondheidstechniek TNO (author)
other 1960
document
van den Eijk, J. (author), Instituut voor gezondheidstechniek TNO (author)
conference paper 1960
document
Instituut voor Gezondheidstechniek TNO (author), van Leeuwen, H.A. (author), van den Eijk, J. (author)
article 1962
document
Nederveen, C.J. (author), Centraal laboratorium TNO (author)
article 1964
document
Nederveen, C.J. (author), Centraal laboratorium TNO (author)
For a cylindrical woodwind and in particular for a clarinet, methods are derived to calculate location and diameier of the holes. In a simple way the calculations are carried out for each hole separately, and independently of the other holes. Corrections are introduced for the influence on the resonance frequency of the overblowing hole and of...
article 1964
document
Plomp, R. (author), Instituut voor Zintuigfysiologie TNO (author)
The rate of decay of auditory sensation was investigated by measuring the minimum silent interval that must be introduced between two noise pulses to be perceived. The value of this critical time Δt was determined for difierent intensity levels of both the first and the second pulse. It is shown that in this case the sensation level of the...
article 1964
document
van den Brink, G. (author), Instituut voor Zintuigfysiologie TNO (author)
A new method for measuring cochlear summation is introduced. This method is an analog of the method earlier applied for measuring retinal summation. The probability of hearing pulses of two small noise bands presented simultaneously is measured as a function ot the frequency difference between these noise bands. Within the experimental error,...
article 1964
document
Instituut voor Zintuigfysiologie TNO (author), Plomp, R. (author)
article 1964
document
Gomperts, M.C. (author), Instituut voor Gezondheidstechniek TNO (author)
article 1965
document
Nederveen, C.J. (author), de Bruijn, A. (author), Centraal laboratorium TNO (author)
article 1967
document
Technisch Physische Dienst TNO - TH (author), Janssen, J.H. (author)
article 1967
document
Nederveen, C.J. (author), Centraal laboratorium TNO (author)
When vibrating, the needs of wood wind instruments displace an amount of air that shifts the resonance frequency of the instrument in the same way as does a mouthpiece cavity. In cylindrical instruments, this shift corresponds to an effective lengthening of the resonating tube. In conical instruments, the shift is strongly frequency dependent...
article 1969
document
Steenhoek, H.F. (author), ten Wolde, T. (author), Technisch Physische Dienst TNO - TH (author)
report 1970
document
Smoorenburg, G.F. (author), Instituut voor Zintuigfysiologie TNO (author)
article 1972
document
Smoorenburg, G.F. (author), Instituut voor Zintuigfysiologie TNO (author)
article 1972
document
Instituut voor Gezondheidstechniek TNO (author), Passchier-Vermeer, W. (author)
article 1972
document
Instituut voor Gezondheidstechniek TNO (author), van den Eijk, J. (author)
article 1972
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