Sound Sources

A sound source that fulfills required standards is needed in building acoustics measurements. Brüel & Kjær offers a complete range of sound sources for building acoustics measurements, including our Tapping Machine, and our 12-speaker omnidirectional OmniPower™ Sound Source. The sound sources are ideally matched with our range of Power Amplifiers, which have been specifically designed for acoustic applications, with features such as wireless signal transmission for unhindered measurement range and flexibility.

Type 3207

Tapping Machine / Impact Sound Source
Tapping Machine Type 3207 is an impact sound generator for measuring impact sound levels. The generator uses five hammers each weighing 500 g and operating at 2 Hz dropping from a height of 40 mm, giving an operating frequency of 10 Hz.
Type 2734

Power Amplifier for building and room acoustics
A power amplifier designed to power sound sources in building and room acoustic field measurements.
Type 2735

Measurement Power Amplifier
A compact, highperformance, 2 × 35 W power amplifier designed for electroacoustic and general-purpose applications.
Type 4204

Reference Sound Source
Reference Sound Source is optimized for measuring room and building acoustics. It is also useful in the field of building acoustics to determine the sound absorption and sound insulation of a room.
Modelo 4292-L

Altavoz omnidireccional de alta potencia - Fuente sonora OmniPower
Altavoz dodecaédrico para medidas de aislamiento acústico y acústica de salas.
Modelo 4720

ECHO SPEECH SOUND SOURCE
La fuente sonora Echo Speech proporciona una señal calibrada para medir una gama de parámetros de inteligibilidad del habla. Junto con DIRAC 6, puede realizar mediciones de STI (índice de transmisión del habla). El software reconoce automáticamente el nivel de salida de habla y los cálculos se ajustan adecuadamente.

Sound Sources

Type 3207

Type 2734

Type 2735

Type 4204

Modelo 4292-L

Modelo 4720