Vibrato: Difference between revisions
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== literature review == | == literature review == | ||
1. '''Perceptual Evaluation of Vibrato Models''' | |||
: Vincent Verfaille, Catherine Guastavino, Philippe Depalle | : Vincent Verfaille, Catherine Guastavino, Philippe Depalle | ||
: Proceedings of the Conference on Interdisciplinary Musicology (CIM05) | : Proceedings of the Conference on Interdisciplinary Musicology (CIM05) | ||
| Line 17: | Line 17: | ||
:: * It'd be interesting to see a more music-passage specific (higher level) analysis as opposed to instrument-specific modelling | :: * It'd be interesting to see a more music-passage specific (higher level) analysis as opposed to instrument-specific modelling | ||
2. '''An Investigation of Vocal Vibrato for Synthesis''' | |||
: Robert Maher, James Beauchamp | : Robert Maher, James Beauchamp | ||
:* focuses on vocal vibrato & presents a new panned-wavetable synthesis method | :* focuses on vocal vibrato & presents a new panned-wavetable synthesis method | ||
:* role of spectrum modulation | :* role of spectrum modulation | ||
:* findings: "Inclusion of typical random fluctuations of vibrato rate, vibrato depth, and nominal sung frequency resulted in no quality preference over examples with constant values. Inclusion of ''vibrato-induced spectrum modulation'' resulted in a substantial improvement over examples having constant spectra." | :* findings: "Inclusion of typical random fluctuations of vibrato rate, vibrato depth, and nominal sung frequency resulted in no quality preference over examples with constant values. Inclusion of ''vibrato-induced spectrum modulation'' resulted in a substantial improvement over examples having constant spectra." | ||
Revision as of 23:17, 20 July 2009
literature review
1. Perceptual Evaluation of Vibrato Models
- Vincent Verfaille, Catherine Guastavino, Philippe Depalle
- Proceedings of the Conference on Interdisciplinary Musicology (CIM05)
- spectral envelope modulation
- frequency-dependent hysteresis behavior
- test: preference for sounds with modulated spectral envelope
- offers great literature review & background info on vibrato pitch, rate, extent, shape, and temporal evolution
- provides equations for modeling FM, AM, SEM pulsations
- vibrato is made of at least one of these three kind of modulations:
- amplitude modulation (predominant in wind and brass instr)
- frequency modulation (predominant in voice and string instr)
- spectral envelope modulation and hysteresis (existing in wind, brass, voice)
- Questions & thoughts:
- * How much of the analysis is instrument-specific, and how much is it performer/ context/ style-specific?
- * It'd be interesting to see a more music-passage specific (higher level) analysis as opposed to instrument-specific modelling
2. An Investigation of Vocal Vibrato for Synthesis
- Robert Maher, James Beauchamp
- focuses on vocal vibrato & presents a new panned-wavetable synthesis method
- role of spectrum modulation
- findings: "Inclusion of typical random fluctuations of vibrato rate, vibrato depth, and nominal sung frequency resulted in no quality preference over examples with constant values. Inclusion of vibrato-induced spectrum modulation resulted in a substantial improvement over examples having constant spectra."