Sound Quality Evaluation Function for O-Solution

OS-0525 - Ono Sokki

The sounds generated from the equipment are mainly measured by evaluation based on general analysis such as sound pressure level, FFT analysis and 1/3 Octave analysis. However, since those analysis don’t take into consideration the human hearing characteristics enough, sounds with even the same analysis result may give different impression.
When a human listens to a sound, various sensations such as loudness, sharpness, and roughness occur.

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Measurement/Analysis Software O-Solution

DS-5000 - Ono Sokki

•Compare/ analyze the data with wide sampling frequency from 10 μHz to 100 GHz•Flexibly layout to compare the data in different formats or sampling frequency•Support various file formats including other company's loggers•Perform multiple data analysis (up to 1,000) simultaneously•Further analysis on specified area with the marker function

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Fluctuation Sound Analysis Function for O-Solution

OS-0526 - Ono Sokki

Although the magnitude of the sound is not so large, there are many “unpleasant sound” in the world. For example, “rattling” and “humming“ sounds generated from interior items while driving a car, or abnormal sounds such as “buzzing“ sounds that can be heard in the rotation sound of a small motor, etc. Sounds with significant temporal fluctuation often feel unpleasant even the magnitude of sound (level) is not so large.The fluctuation sound analysis is the analysis that can extract only the components with large time fluctuation that are not affected by the level. As a result, it becomes possible to quantify the characteristics of various temporal fluctuations that were difficult to detect with conventional FFT, basic roughness or fluctuation strength. In addition, since it can be evaluated with two axes of sound tone (high and low) and time fluctuation cycle for various sound designs (applying effect), deeper analysis than conventional technology is possible.

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Time Frequency Analysis Function

OS-0527 - Ono Sokki

This function can evaluate transient phenomena that were difficult to capture by FFT analysis, and display clearly time change of the frequency component while maintaining its frequency resolution . The OS-0527 is equipped with STFT (Short Time Fourier Transform) and Wavelet transform.

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Sound Quality Evaluation Function for O-Solution

Topics

Measurement/Analysis Software O-Solution

Fluctuation Sound Analysis Function for O-Solution

Time Frequency Analysis Function

FTT Analyzer & Data Processing

Measurement/Analysis Software O-Solution