Prism Sound upgrades audio analyzer software
-- Test & Measurement World, 10/1/2007
In Version 1.21 of its dScope Series III audio analyzer software, Prism Sound has added tools for acoustic measurements, PC audio, and 192-kHz sampling on digital audio interfaces. Key features of Version 1.21 include generation and analysis using Windows sound devices, support for acoustic measurements of transducers and rooms, fast measurements (including frequency response) using a swept-sine (Farina) method or bin-centered noise with impulse response and fast Fourier transforms (FFT), and quasi-anechoic measurement using an adjustable time window to eliminate acoustic reflections.
The software also performs microphone sensitivity measurements and frequency response calibration, as well as time domain averaging to reduce the effects of random noise on measurements. Analog I/O can now sample at 48 kHz, 96 kHz, and 192 kHz to increase low-frequency resolution of FFT analysis. A script debugger allows breakpoints, single stepping, and examination and setting of variables.
Prism Sound, www.prismsound.com.
