Experimental Setup

Head and Torso Simulator (HATS)

Head and Torso Simulator is a mannequin with built-in ear and mouth simulators that provides a realistic reproduction of the acoustic properties of an average adult human head and torso. It is ideal for performance in-situ electro acoustic tests on:

Telephone handsets (including mobile and cordless)
headsets
audio conference devices
microphones
headphones
hearing aids
hearing protectors

Omni Power Sound Source

For most building acoustics measurements, the sound source must radiate sound evenly in all directions to give reproducible and reliable results; therefore, the relevant building acoustics measurements standards (ISO 140 and ISO3382) require the use of an unidirectional sound source.

Omni Power Omni directional Sound Source Type 4292-L uses a cluster of 12 loudspeakers in a dodecahedral configuration that radiates sound evenly with a spherical distribution. All 12 speakers are connected in a series-parallel network to ensure both in-phase operation and an impedance that matches the power amplifier. The entire assembly weighs no more than 8 kg and is fitted with a convenient lifting handle that does not measurably interfere with the sound field.

Creating and Playing Stationary and non-Stationay Sounds

Note: Before going to download required application, Installer should be downloaded. After downloading this installer, extract the files. Click on the setup icon is located on the volume folder of this attachment. The downloadable attachament is given in following attachament. In case of LabVIEW 8.5 was pre-installed, please eliminate this step.

Attachment: Sweep-Installer Attachment: dll download

Note: After installing the setup, please download and install the application.exe file which is given in following attachment

Attachment: sweep.exe

Note: To create stationary sound wave the starting and the end frequency should be kept same.