Combine several WAV files into one WAV file - Windows Shareware $29.95. WAV Joiner is used to combine two or more recorded WAV format sound files into one large WAV file. An unlimited number of files with a combined size of 2Gb may be joined and the original files can be deleted once they are joined if free disk space is limited. Silence can be inserted between files and mono / stereo, 8-bit / 16-bit WAV files are supported.