Short description of Alvas.Audio 7.1: Alvas.Audio allows C# and VB.Net developers to create applications that play, record, edit and convert sound. Key Features: record/play uncompressed and compressed audio data; play mixed audio data; record/play data to/from the stream; set up mixer controls; get the current sound position; convert the audio data; view the level of the input sound signal. Encode and decode Dialogic .vox (adpcm) format data.