ConstReadonlyhermite: 2Slowest, high quality with little artifacting. (Default)
Readonlylinear: 0Linear interpolation. Fast with acceptable quality.
ReadonlynearestNeighbor: 1Nearest neighbor, essentially no interpolation. Fastest, but lowest quality. It may be desirable in some cases to make the sound "crispier".
The available interpolation types of the synthesizer. Interpolation defines how sample points between the sample data are calculated. This has high cost on performance but can improve the quality.