Helium Audio Joiner is a freeware tool for Windows which is a fully functional, helper application that enables you to join multiple audio files into one single file. Apart from joining files it also enables you to insert silence between the joined tracks as well as editing and applying tags to the resulting file. It supports most of the popular formats like AAC, FLAC, M4A, M4B, MP3, MP4, MPC, Ogg Vorbis, Wave, WAVPack and WMA.
You can add folders or file containing audio files and then set the output format for joining. You can also set the tag information like title, artist, album and other details for the joined audio file.
For FLAC and MP3 formats, you can also request that the output files be analysed and checked. There is a powerful inspection tool available that shows the properties of the selected music file which includes an overview, detailed file and tag information and attached pictures.
Using the options menu, you can set to specify how silence between tracks should be added or not and whether a warning should be given when joining lossless and lossy music files.
Overall Helium Audio Joiner is a simple and useful tool to combine audio files.