QuickLZ
When I was searching compression library which is available with C/C++, I have met QuickLZ library. In sample directory, there are two simple sample codes, first is compression, the other one is decompression. After some researching time, I decided to use it in order to compress and decompress my audio data. There are a lot of audio codec libraries for this work but many are old, no documentation or hard to link in Windows environment. I have tried FFMPeg, FLAC, vorbis but QuickLZ is easier than them. It is highly successfull in compression and decompression processes and also full open source (.c file is open) so you don't have to link as dynamic or static. I downloaded its 1.50.32 version and used. Here is compression sample code :