Sound and Vibration Instrument Hire and Calibration
NTi Audio : Minirator MR-PRO - Audio Generator
| NTi Audio : Minirator MR-PRO - Audio Generator | £ 4 a day * |
|---|
The Minirator MR-PRO provides a full set of analog audio signals including sine wave, pink noise, white noise, delay test signal, polarity test signal, stepped sweep and continuous sine sweep. Further, a set of wav-files, useful for system optimisation, is stored in the internal flash memory. Add your own personal favourites to this set.
The Minirator MR-PRO offers a range of additional factory test files, e.g. for speech intelligibility verification. You may store additional user test signals as uncompressed wav-files in the MR-PRO memory. The selected file is seamlessly looped. Wav-file exchange is simplified via the USB port.
Pre-installed: STIPA, Voice, Music - see our STIPA kits
User downloads at the support page:
Third- and Octave Pink Noise
Square Wave: 10 Hz - 5 kHz
Sine: 1 Hz - 10 Hz
Power Test acc. BS EN 60268-5
Norm Signal acc. BS EN 60065
Cinema Headroom Test
Sine : pure sine waveforms at user-selectable frequencies and amplitudes. The frequency steps interval can be set to as low as 0.1Hz.
Selectable frequencies from 10 Hz to 20 kHz. Level range from -80 to +18 dBu
Sweep : the start/stop frequency, step time and a step resolution as fine as 1/12th octave can be adjusted. Audio analysers automatically trigger to this signal and record the frequency response of a device under test.
Chirp : the chirp signal is a logarithmic or linear gliding sine sweep signal with continuous frequency increase over time. Typical applications are recording of frequency responses, impulse response measurements and acoustic assessment of rooms.
Pink & White Noise : pink or white noise is synthesised with high spectral density, normal amplitude distribution and with infinite cycle duration. The Minirator also generates gated pink noise (on/off cycle 1 - 9 seconds) for convenient RT60 measurements with the XL2 Audio and Acoustic Analyser.
