Sound pressure source0 pages

FP121 Sound Source
Omni-Directional Loudspeaker
Noise Generator/Amplifier AP601
The FP121 Sound Source has two well defined parts: the
Omni-directional Loudspeaker BP012 and the Noise Generator
/ Amplifier AP601.
The FP121 has been designed to satisfy the needs of professionals
specialising in building and room acoustics. The FP121
allows you to measure airborne sound insulation, reverberation
time and sound absorption in accordance with the standards:
ISO 3382, ISO 354 and ISO 140.
The BP012 has 12 loudspeakers mounted on a dodecahedral
housing. This ensures a complete omni-directional radiation
diagram; that is to say, sound is radiated in a spherical distribution,
as is required by the standards ISO 140 and ISO 3382.
The BP012 handles an electrical power of 600 W RMS developing
123 dB of sound power level in the third octave bands
with centre frequency between 50 and 5,000 Hz. The loudspeaker
has been designed to supply the maximum power for
over an hour.
To facilitate handling the BP012 includes 5 rubber pads for
floor mounting, 1 hoisting eye for aerial suspension and 2 grips
for ergonomic handling. The BP012 is internally reinforced
with an aluminium core that makes it robust and allows it to be
adapted for the TR012 tripod.
The AP601 is comprised of a White and Pink noise generator
and a power amplifier. The AP601 has been especially designed
to generate the signal to be reproduced by the BP012 .
Thanks to its internal noise output and its external noise input,
the AP601 can be used as a noise generator + amplifier, just
as a noise generator or just as an amplifier. Also allows you to
insert between the noise generator and the amplifier supplementary
signal processing equipments as equalizers or compressors.
The AP601 has an overcharge, clip and thermal protection.
The AP601 can be operated directly from the keyboard or by a
PC with the included software. This communication with the
PC can be done through cable or through BluetoothTM , wireless.
The forced ventilation cooling system of the AP601 turns off
the fan during one minute after the signal reproduction is
stopped. This is efficient for the background noise measurements.
Applications
• Measurement of sound insulation in
buildings and of building elements
ISO 140
• Measurement of the reverberation
time of rooms ISO 3382
• Measurement of sound absorption in
a reverberation room ISO 354
Main characteristics
• Complete omni-directional radiation
diagram
• 123 dB sound power level
• White, Pink and Pink filtered (1/3 octave
band 50 – 5000 Hz) noise generator
• Remote control through cable or
BluetoothTM (integrated on the AP601)
• Forced ventilation cooling system
with automatic fan turn off: Ideal for
background noise measurements
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