Glossay

Glossary

f_e
Acoustic resonance frequency related to aperture, volume and driver parameters.

f_s
Free air resonance of the driver, a Thiele-Small parameter.

f_n
Null frequency at which the driver does not move.

f_Q
Quarter-wave resonance frequency related to cabinet length.

3_Q
Three times the quarter-wave resonance frequency.

Q_ts
Total Quality Factor, a Thiele-Small parameter.

V_as
Volume of air having the same compliance as the driver, a Thiele-Small parameter.

V_e
Internal cabinet volume derived from Thiele-Small parameters.

l
Cabinet length equal to the speed of sound divided by 4fs.

S_a
Aperture area derived from Thiele-Small parameters.

Compression horns
Cabinets designed to promulgate and release a compression wave into the air. They are nearly exponential and are under-damped.

Oscillation horns
Cabinets designed to exploit longitudinal oscillation at the acoustic resonance frequency of the system. They are nearly conical and are critically damped.

Glossary
f_e		Acoustic resonance frequency related to aperture, volume and driver parameters.
f_s		Free air resonance of the driver, a Thiele-Small parameter.
f_n		Null frequency at which the driver does not move.
f_Q		Quarter-wave resonance frequency related to cabinet length.
3_Q		Three times the quarter-wave resonance frequency.
Q_ts		Total Quality Factor, a Thiele-Small parameter.
V_as		Volume of air having the same compliance as the driver, a Thiele-Small parameter.
V_e		Internal cabinet volume derived from Thiele-Small parameters.
l		Cabinet length equal to the speed of sound divided by 4fs.
S_a		Aperture area derived from Thiele-Small parameters.
Compression horns		Cabinets designed to promulgate and release a compression wave into the air. They are nearly exponential and are under-damped.
Oscillation horns		Cabinets designed to exploit longitudinal oscillation at the acoustic resonance frequency of the system. They are nearly conical and are critically damped.