Measuring and optimization sound sources of rooms and buildings-Sound test speakers-Hottinger Brüel & Kjær

4720 | Measuring and optimization sound sources of rooms and buildings-Sound test speakers
Hottinger Brüel & Kjær


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Model Description

■ Type 4720 Language Clearness Measurement Software-Echo Speech Sound Source When combined with DIRAC 6, the echo speech sound source is quick and easily measured in conjunction with IEC 60268-16. Impulse response and background noise measure intermittent MLS (Maximum Length Sequence) at once using long silence of the same length as stimuli. ■ Usage examples ・ Dirac measurement measurement ・ Measurement including background noise There is no need to adjust external equalizers or speech levels because the proofreading speech sound source is used. Since the signal can be set at a high level, it is possible to measure (StispeeCH Transmission Index) even if the background noise is high. DIRAC 6 recognizes the output level and corrects the calculation properly. The echo speech sound source can be used to set the PA system volume using a 60db (a) male audio signal at a general level of 1 meter. Pink MLS signals are included for STI measurement. MLS is much less annoying than the E -sweep signal. ■ Main functions ・ DIRAC 6 wireless sound source ・ Corrected speech level and spectrum ・ Orientation of mouth ・ 5 types of built -in stimuli signals ・ Intermewin stimuli in consideration of background noise ・ External input / output ・ Small and lightweight (10x10x17cm, 1kg) ・ Can be attached to a standard tripod ・ Battery drive type ・ External power supply attached


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    4720




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Measuring and optimization sound sources of rooms and buildings-Sound test speakers-Part Number-4720 Available upon quote

There are 3 models for this product.

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