Room acoustic measurements require a sound source with a diffuse sound field, which means that the sound energy has to be distributed uniformly. For this reason, a sound source with an omnidirectional radiation characteristic is best used for precise measurements.
DS3 Dodecahedron Speaker Kit
The DS3 Dodecahedron Speaker is a powerful sound source with omnidirectional radiation characteristics. It includes 12 loudspeakers of the same type, mounted to a dodecahedron-shaped chassis. The optimized frequency spectrum delivers a high level of equalized sound energy for precise Reverberation Time measurements. Additionally, it offers the reference sound source to evaluate the spatial decay rate in open plan offices.
The DS3 is powered by the portable Power Amplifier PA3, which offers a built-in Pink Noise generator with an equalized output signal. The wireless remote control allows the test signal to be switched on/off from outside of the measurement room.
The TalkBox is an acoustic signal generator. It provides a wide range of test signals like Sine, Pink Noise, White Noise, a delay test signal, and spoken announcements. It offers a balanced Line-In/Out connector and an FIR equalized speaker (level and phase).
The Minirator MR-PRO generates a gated Pink Noise with a low Crest factor dedicated to Reverberation Time Measurements. In addition, the MR-PRO offers a GlideSweep signal with editable cycle time. All test signals may be replayed via the DS3 Dodecahedron Speaker kit.