DS-2000 Frequently Asked Questions

The frequency characteristics of human hearing correspond to frequency bands known as octaves. While FFT analyzers are optimal for analyzing abnormal frequencies of sound and vibrations with high resolution, real-time analyzers are used to evaluate how humans perceive sound. Graduo can perform real-time octave analysis simultaneously across a minimum of 2 channels to a maximum of 32 channels.

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

The throughput disk function also allows for simultaneous octave analysis and FFT analysis in offline mode.

Example of Measurement System

• Octave analysis and FFT analysis can be performed simultaneously offline.
• Octave analysis can also be performed offline using time record data.

Measurement Example: Measurement of Sound Insulation Properties of Building Materials

• Measurements can be taken at sites without AC power thanks to the external battery.

Usage destination

Evaluation of audio equipment, office equipment (printers, copiers, etc.), home appliances (air conditioners, washing machines, etc.) sound evaluation, architectural acoustics measurement (sound insulation measurement, floor impact noise, etc.), environmental noise measurement (factory noise, road traffic noise, etc.), automotive sound measurement (cabin noise, car audio evaluation, tire noise, brake squeal, etc.)