DS-2000 Frequently Asked Questions

The human frequency response to sound corresponds to a frequency band step called an octave. While an FFT analyzer is ideal for high-resolution analysis of abnormal frequencies in sound and vibration, a real-time analyzer is used to evaluate how humans perceive sound. Graduo can perform real-time octave analysis on all channels simultaneously, from a minimum of 2 channels to a maximum of 32 channels.

Furthermore, 1/6 and 1/12 octave analysis can be performed simultaneously on all channels.

Furthermore, the throughput disk function allows for simultaneous offline octave analysis and FFT analysis.

■Example of a measurement system

• Octave analysis and FFT analysis can be performed simultaneously offline.
• Octave analysis can be performed offline even with time record data.

■Measurement Example: Measurement of sound insulation properties of building materials

• An external battery allows for measurements to be taken in locations without AC power.

■Where to use

Audio equipment evaluation, acoustic evaluation of office automation equipment (printers, copiers, etc.) and home appliances (air conditioners, washing machines, etc.), building acoustic measurement (sound insulation measurement, floor impact sound, etc.), environmental noise measurement (factory noise, road traffic noise, etc.), automobile acoustic measurement (in-cabin noise, car audio evaluation, tire noise, brake squeal, etc.)