Back to Search
Start Over
Synthesising the sound of a car engine based on envelope decomposition and overlap smoothing.
- Source :
-
Journal of Vibroengineering . Aug2021, Vol. 23 Issue 5, p1254-1266. 13p. - Publication Year :
- 2021
-
Abstract
- The synthesised sound of a car engine is used to alert people to the approach of an electric vehicle, to personalise the sound of an engine and for virtual reality. A methodology for synthesising engine sound based on concatenating samples is proposed. First, using filtering, the engine sound is decomposed into a combination of low-frequency harmonics that depend on the engine speed and high-frequency narrowband amplitude-modulated signals. The high-frequency signals are modulated by the harmonics that depend on the engine speed. The carrier and envelope of the amplitude-modulated signal are extracted with a Hilbert transform. The decomposed segments are concatenated by overlap smoothing. All the concatenated segments are assembled to form a synthesised sound. Finally, the synthesised sound is evaluated using the cepstrum distance and subjective auditory experiment, and it is compared with the raw engine sound and other synthesised sound. [ABSTRACT FROM AUTHOR]
- Subjects :
- *AUTOMOBILES
*HILBERT transform
*ENGINES
*VIRTUAL reality
*ELECTRIC vehicles
Subjects
Details
- Language :
- English
- ISSN :
- 13928716
- Volume :
- 23
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Journal of Vibroengineering
- Publication Type :
- Academic Journal
- Accession number :
- 151940552
- Full Text :
- https://doi.org/10.21595/jve.2021.21920