The baudline time-frequency browser is a signal analysis tool designed for scientific visualization. It runs on several Unix-like operating systems under the X Window System. Baudline is useful for real-time spectral monitoring, collected signals analysis, generating test signals, making distortion measurements, and playing back audio files.
Applications
Acoustic cryptanalysis
Audio codec lossy compression analysis
Audio signal processing
Bioacoustics research
Data acquisition (DAQ) Gravitational Wave analysis Infrasound monitoring Musical acoustics radar Seismic data processing SETI Signal analysis Software Defined Radio Spectral analysis Very low frequency (VLF) reception WWV frequency measurement
Features
Spectrogram, Spectrum, Waveform, and Histogram displays
Fourier, Correlation, and Raster transforms
SNR, THD, SINAD, ENOB, SFDR distortion measurements
Channel equalization
Function generator
Digital down converter
Audio playing with real-time DSP effects like speed control, pitch scaling, frequency shifting, matrix surround panning, filtering, and digital gain boost Audio recording of multiple channels JACK Audio Connection Kit sound server support Import AIFF, AU, WAV, FLAC, MP3, Ogg Vorbis, AVI, MOV, and other file formats
License
The old baudline version comes with no warranty and is free to download. The binaries may be used for any purpose, though no form of redistribution is permitted. The new baudline version is available via a subscription model and site license.