Baudline is a time-frequency browser designed for scientific visualization of the spectral domain. Signal analysis is performed by Fourier, correlation, and raster transforms that create colorful spectrograms with vibrant detail. Conduct test and measurement experiments with the built in function generator, or play back audio files with a multitude of effects and filters. The baudline signal analyzer combines fast digital signal processing, versatile high speed displays, and continuous capture tools for hunting down and studying elusive signal characteristics.
ToneTool is a J2ME application for generating various tones and selective calling sequences used in professional radio communication systems. By using a mobile phone, one does not need any external hardware encoder, tone dialer, or expensive radiotelephone. Currently supported modes are DTMF, Select-V, and 1750 Hz repeater tone.
DBLog is a logging program for radio amateurs based on a relational database. It allows the user to log QSOs and export a range of them in ADIF format. It can read the radio frequency via CAT interface. It includes a CW Keyer based on cwdaemon. It works with fldigi for digi-modes, and can store QSL pictures with QSO data.
The FAAC project includes the AAC encoder FAAC and decoder FAAD2. It supports several MPEG-4 object types (LC, Main, LTP, HE AAC, PS) and file formats (ADTS AAC, raw AAC, MP4), multichannel and gapless en/decoding as well as MP4 metadata tags. The codecs are compatible with standard-compliant audio applications using one or more of these profiles.
Xdx is a client to connect to a DX-cluster for amateur radio. DX messages will be displayed in a list, and announcements will go to a text display. In addition to the usual functions, if you have hamlib installed it can control the radio and set the frequency simply by double clicking a DX-spot (using rigctl).