High Quality does sound good!
The noise that household appliances make should not be neglected because it could affect the impression of an appliance’s quality. In the end, there is the end-user’s unconscious expectation, which has to be met. For example, pushing a button should not cause creaking and the noise during operation should be pleasant and give an impression of reliability.
Apart from the basic analysis processes such as narrowband frequency analysis and level-evaluation, psychoacoustic parameters are used for rate the noise quality of:
- Roughness; and
- Fluctuation strength.
Comparative listening to the series of measurements recorded under different states of construction is also very helpful. These series of measurements can be stored and archived with PAK.
The user can also save additional parameters such as temperature and rpm. This enables the data to be analyzed later, according to the given context.
Furthermore PAK supports noise-emission measurements based on acoustic power measurement as well as mapping of localized sound emissions according to the IEC 704 standard.