The SoundMap™ Time Frequency Analysis module enables detailed analysis of signals simultaneously in both the time and frequency domain.
It is ideal for impulse response analysis and detection of loose particles and Rub & Buzz in loudspeakers. It is also valuable for identification of transient effects such as drop out in digital devices including VoIP and Blue¬tooth headsets.
It offers four different analysis options (see ‘Analysis’ tab):
- Cumulative Spectral Decay (CSD) – also known as waterfall plots
- Short Time Fourier Transform (STFT)
SoundMap offers far more flexibility than conventional ‘waterfall plot’ software, and more accurate and psychoacoustically significant analysis options.
The software offers a variety of display options including 3D waterfall plot, intensity map with time and frequency slices, instantaneous spectrum, frequency time curve, time envelope and others. The ability to view a “slice” in either the time or frequency domain enables in-depth examination of any result.
In addition to analyzing data collected in SoundCheck, SoundMap can read data from any WAV file, ASCII text file or even a MLSSA TIM file, therefore can be used to analyze data collected on other instrumentation.