BpmDj is a program that can be used by a DJ. It plays MP3 and Ogg files. It has a fully automatic BPM counter. It can determine the sound color. It has a full fledged Qt based interface. It will help you manage a large amount of songs. It can help in creating playlists and has proven to be very robust. The program also allows offline automatic mixing and contains a wavelet based beat graph analyzer to visualize audio tracks.
Recording level monitor records analog audio from the sources you choose and plays it back simultaneously so that you can hear it, while monitoring the loudness (input) level of the recording. You'll be able to hear and see whether the volume is too high (introducing analog distortion and digital clipping) or too low (letting through background noise and hiss) on your audio gear.
SBAM (Software Based Abled Mixer) is a new approach to computer-based DJing.. This project aims to help DJs concentrate on the important aspects of DJing and to decrease the stress factor. It is intended for the DJs that have no need for beatmixing or other advanced mixing techniques, which means you'll be limited when it comes to creative individual mixing of tracks. Instead, you'll be able to concentrate on finding the right track for the audience.
somaplayer is music player for MP3, Ogg, wav, audio CDs, MP3 streams, and Ogg streams. It is able to use the appropriate sound drivers or demons or to stream directly to an Icecast server (Icecast2 or SHOUTcast) or to encode in MP3 and Ogg Vorbis. It also acts as a sound daemon that is able to accept connections from other somaplayers or any other sound player (xmms, mpg123, and others) thanks to a special wrapper.