The Sound Quality Analyzer (SQA) from Nelson Acoustic Software conducts psychoacoustic sound quality analysis on standard audio WAV format files. SQA is a low cost, easy to learn to use, sound quality analysis tool for use with product and equipment noise emission recordings.
SQA processes standard audio WAV format files and provides several methods of establishing level calibration.
- Recordings made with our Trident data acquisition software have embeded normalization and will automatically be calibrated with retrieved into SQA
- Recordings made with Bruel and Kjaers Pulse data acquisition system can have calibration information read directly into SQA
- Recordings with known A-weighted sound pressure levels can calibrated based on the known level
- Recordings of a calibration signal with the settings as the recording to be analyzed can be used to establish level calibration
Sound Quality Analyzer conducts the following analysis
- Weighted Sound Levels Overall (A, B, C, Linear)
- Weighted Sound Levels vs Time (A, B, C, Linear)
- 1/N Octave Band Analysis (1/1, 1/3, 1/6, 1/12, 1/24)
- FFT Analysis (Magnitude, Power Spectrum, Power Spectral Density) with user selectable resolution
- Short Time Fourier Transfer (STFT) Analysis
- Recordings of a calibration signal with the settings as the recording to be analyzed can be used to establish level calibration
- ISO 532B Loudness (Overall and Specific Loudness)
- Time Varying Loudness including temporal masking (Specific Loudness)
- Sharpness (Aures method)
- Roughness (Aures method)
- Fluctuation Strength (Aures method)
- Tonality (Overall and TN)
In addition to the analysis metrics, SQA also provide filtering and listening tools that allow users to compare sounds from different files and filter out tones.
Sound Quality Analyzer is an executable application and requires no data acquisition hardware to operate, freeing up the data acquisition station and allowing users to conduct detailed sound quality analysis at their desk.
Sound Quality Analyzer is licensed in two versions. The Lite version provides only the sound level measurement metrics (Overall Levels, Wtd Levels vs Time, FFT, STFT, Filtering and listening). The Full versiod provide all of the sound level measurement metrics plus all of the Sound Quality metrics (Loudness, Sharpness, Roughness, Fluctuation Strength and Tonality).
Browse features of the Sound Quality Analyzer on the next tab.
