libosmotrau2 0.5.1-1build1 (riscv64 binary) in ubuntu focal

 This library implements the Transcoder and Rate Adaptation Unit (TRAU) for
 GSM systems. It is closely related to the libosmo-abis library.
 .
 TRAU performs transcoding function for speech channels and rate adaptation (RA)
 for data channels in the GSM network.