Implement probabalistic rounding #534

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opened 2025-07-29 09:47:02 +00:00 by martinwguy · 0 comments

martinwguy commented

2025-07-29 09:47:02 +00:00

(Migrated from codeberg.org)

Implement probabalistic rounding

Description

Probabalistic rounding (PROUND) uses the fractional part as the probability for rounding up. For example, 3.14 is rounded up to 4 with a probability of 14% and rounded down to 3 with a probability of 86%.(*)

This is interesting for choosing discrete values in the output of effects that work internally in higher precision, maybe for bit-depth reduction and maybe dithering.

*) The R5N Distributed Hash Table, sec. 6.4.

# Implement probabalistic rounding ## Description Probabalistic rounding (PROUND) uses the fractional part as the probability for rounding up. For example, 3.14 is rounded up to 4 with a probability of 14% and rounded down to 3 with a probability of 86%.(*) This is interesting for choosing discrete values in the output of effects that work internally in higher precision, maybe for bit-depth reduction and maybe dithering. *) The R5N Distributed Hash Table, sec. 6.4.