- Title
- Time-frequency synthesis of noisy sounds with narrow spectral components
- Creator
- Marelli, Damián; Aramaki, Mitsuko; Kronland-Martinet, Richard; Verron, Charles
- Relation
- IEEE Transactions on Audio, Speech and Language Processing Vol. 18, Issue 8, p. 1929-1940
- Publisher Link
- http://dx.doi.org/10.1109/tasl.2010.2040532
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- journal article
- Date
- 2010
- Description
- The inverse fast Fourier transform (FFT) method was proposed to alleviate the computational complexity of the additive sound synthesis method in real-time applications, and consists in synthesizing overlapping blocks of samples in the frequency domain. However, its application is limited by its inherent tradeoff between time and frequency resolution. In this paper, we propose an alternative to the inverse FFT method for synthesizing colored noise. The proposed approach uses subband signal processing to generate time–frequency noise with an autocorrelation function such that the noise obtained after converting it to time domain has the desired power spectral density. We show that the inverse FFT method can be interpreted as a particular case of the proposed method, and therefore, the latter offers some extra design flexibility. Exploiting this property, we present experimental results showing that the proposed method can offer a better tradeoff between time and frequency resolution, at the expense of some extra computations.
- Subject
- additive synthesis; audio systems; colored noise synthesis; frequency-domain synthesis.; time–frequency analysis.
- Identifier
- http://hdl.handle.net/1959.13/928887
- Identifier
- uon:10477
- Identifier
- ISSN:1558-7916
- Rights
- Copyright © 2010 IEEE. Reprinted from IEEE Transactions on Audio, Speech and Language Processing. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Newcastle's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
- Language
- eng
- Full Text
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