libsonic0 binary package in Ubuntu Focal riscv64

 This package contains just the actual library.
 libsonic is a very simple library for speeding up or slowing
 down speech. It has only basic dependencies, and is meant to
 work on both Linux desktop machines and embedded systems.
 The key new feature in Sonic versus other libraries is very
 high quality at speed up factors well over 2X.

Source package