Sound as aperiodic signal
Bild
Graphic:
A sound event without periodicity is a “sound". Oscilloscope graph as example of aperiodic sound signal.
Englisch, Spanisch (CREA), Deutsch
15.04.2016
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Noise refers to a sound event with irregular (= aperiodic) oscillation form. It is composed of a large number of individual oscillations, the frequencies of which are not in integral relationships with one another.
Typical examples are the rustling of paper or the noise of road traffic.
Information and ideas:
Possible cross reference: Examination of aperiodic speech signals with the help of spectral analysis.
Further information on this graphic is available as information sheet on the media portal of the Siemens Stiftung.
Relevant for teaching:
Sound/acoustics: parameters
Vibrations and waves
Typical examples are the rustling of paper or the noise of road traffic.
Information and ideas:
Possible cross reference: Examination of aperiodic speech signals with the help of spectral analysis.
Further information on this graphic is available as information sheet on the media portal of the Siemens Stiftung.
Relevant for teaching:
Sound/acoustics: parameters
Vibrations and waves
Sound as aperiodic signal (Video)
Sound as aperiodic signal (Ton)
Sound signals and sound curves (Text)
Sound as aperiodic signal (Ton)
Sound signals and sound curves (Text)
Example
Physics; Technology
Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
Middle/high school; Vocational training
Sound; Technical illustration; Type of sound
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