SoundMap™ Time Frequency Analysis Software - Waterfall Plots and More
The new SoundMap™ Time Frequency Analysis software from Listen, Inc. is a stand-alone program which 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 Bluetooth headsets.
The software enables detailed analysis of signals simultaneously in both the time and frequency domain. It offers four different analysis options:
• Cumulative Spectral Decay (CSD) - also known as waterfall plots
• Short Time Fourier Transform (STFT)
With this selection of analysis options, SoundMap offers far more flexibility than conventional ‘waterfall plot’ software, and more accurate and psychoacoustically significant analysis options.
Since SoundMap is an off-line analysis program, it can be used with measurement systems from any manufacturer as it can read data from any WAV file, ASCII text file or even a MLSSA TIM file. Naturally it also fully integrates with Listen’s SoundCheckTM software. 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.
When opening SoundMap™, the initial display is a Time-Frequency Analysis window which displays the time signal to be analyzed. From this, the user can select which of the four algorithms to use, and define the analysis parameters.