FL Studio: Interpolation
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- KVRAF
- 10597 posts since 13 Jun, 2004 from Alberto Balsam
Does anyone know what the different types of interpolation literally mean? There is a noticable difference of quality between "Linear" and "6-point hermite"
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- KVRist
- 331 posts since 30 Mar, 2003
Interpolation only matters when you are transposing a sample from it's root note (or native sample frequency).Chase wrote:Does anyone know what the different types of interpolation literally mean? There is a noticeable difference of quality between "Linear" and "6-point hermite"
Interpolation is required when the play-back sample rate calls for a sample point to be generated between (out of sync) with the sample timing of another source in the host.
Linear simply - join the dots with a straight line and pick an intermediate sample value from this line. It introduces aliasing when a sample is transposed.
6-point hermite uses a moving window of 6 points to guess a curve and pick something closer to where the point wants to be.
Sync-depth 64, 128, 256 are more sophisticated versions of curve fitting using more points (and hence slower rendering times).
The best way to hear the difference is to transpose a hat sample a couple of octaves above the root key and render at linear, 6-point, sync-depth 64 etc.
Personally I can hear the difference up to Sync-depth 64 (for single shot samples, complete mixes 6-point is about my limit). Above 64 is apparently to look good on the oscilloscope and rendering competitions
Carb.
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- KVRAF
- Topic Starter
- 10597 posts since 13 Jun, 2004 from Alberto Balsam
