Wiki » History » Version 3
Chris Cannam, 2015-01-19 10:11 AM
| 1 | 1 | Chris Cannam | h1. Preprocessing options to be implemented |
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| 2 | 1 | Chris Cannam | |
| 3 | 1 | Chris Cannam | h2. Flatten dynamics |
| 4 | 1 | Chris Cannam | |
| 5 | 1 | Chris Cannam | Integrating the "Flatten Dynamics plugin":/projects/flattendynamics |
| 6 | 2 | Chris Cannam | |
| 7 | 2 | Chris Cannam | h2. De-envelope |
| 8 | 2 | Chris Cannam | |
| 9 | 2 | Chris Cannam | Using cepstral processing to factor out the spectral envelope, after "Simple Cepstrum":/projects/vamp-simple-cepstrum |
| 10 | 2 | Chris Cannam | |
| 11 | 2 | Chris Cannam | h2. Remove broadband noise |
| 12 | 3 | Chris Cannam | |
| 13 | 3 | Chris Cannam | Like the initial noise-removal phase of "Silvet":/projects/silvet -- which runs noise removal on the constant-Q spectrum, but I expect the method would work unchanged for STFT as well |
| 14 | 3 | Chris Cannam | |
| 15 | 3 | Chris Cannam | h2. Remove pitched sounds |
| 16 | 3 | Chris Cannam | |
| 17 | 3 | Chris Cannam | For symmetry with "Remove broadband noise", something that filters out stable pitched sinusoidal or harmonic content in the manner of the "Devuvuzelator":/projects/devuvuzelator (does this have any application?) |
| 18 | 3 | Chris Cannam | |
| 19 | 3 | Chris Cannam | h2. Add broadband noise |
| 20 | 3 | Chris Cannam | |
| 21 | 3 | Chris Cannam | Surprisingly turned out to have a potential application in MATCH: adding -30dB white noise to the inputs gave a more stable alignment |