Baudline
 Baudline Signal Analyzer | |
| Developer(s) | SigBlips DSP Engineering |
|---|---|
| Initial release | September 2000 |
| Stable release | 1.08 (Jul 21, 2010) [±] |
| Preview release | Non [±] |
| Written in | C[1] |
| Operating system | FreeBSD,[2] Linux,[3] Mac OS X, Solaris |
| Type | numerical analysis |
| License | Binary: proprietary;[4] Source code: proprietary[1] |
| Website | www |
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 [5][6][7][8][9]
- Audio codec lossy compression analysis [10][11]
- Audio signal processing
- Bioacoustics research
- Data acquisition (DAQ)
- Infrasound monitoring
- Musical acoustics [12][13][14]
- Seismic data processing
- SETI [15][16][17]
- Signal analysis
- Software Defined Radio [18][19]
- Spectral analysis
- Very low frequency (VLF) reception[20]
- WWV frequency measurement [21][22]
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[23]
- Import AIFF, AU, WAV, FLAC, MP3, Ogg Vorbis, AVI, MOV, and other file formats
License
Baudline binaries are available for free download.[4] The binaries may be used for any purpose, though no form of redistribution is permitted.[24] Source code is available for purchase under a number of licenses.[1] While the Baudline website states that the source code is dual-licensed, under both a proprietary license and a version of the GNU General Public License, no source code released under this dual-license is made available for download on the software's website nor has been shown to exist elsewhere.[25]
See also
- Linux audio software
- List of information graphics software
- List of numerical analysis software
- Digital signal processing
References
- ^ a b c "Source code". Baudline. SigBlips DSP Engineering. Retrieved 22 May 2010.
- ^ "FreshPorts -- audio/baudline". DVL Software Limited. Archived from the original on 18 May 2010. Retrieved 22 May 2010.
- ^ "Linux Online - Application: baudline". Linux Online, Inc. Archived from the original on 7 December 2010. Retrieved 22 May 2010.
- ^ a b "Download". Baudline. SigBlips DSP Engineering. Retrieved 12 May 2015.
- ^ "Acoustic cryptanalysis:On nosy people and noisy machines". Adi Shamir, Eran Tromer. Retrieved 22 May 2010.
- ^ "Acoustic Surveillance of Physically Unmodified PCs" (PDF). Michael LeMay, Jack Tan. Archived from the original (PDF) on 15 June 2010. Retrieved 22 May 2010.
- ^ "2IF03 – Seminar IST Overview of Acoustic Side Channel Attacks" (PDF). Jan de Muijnck-Hughes. Retrieved 17 February 2010. [dead link]
- ^ "Compromising Electromagnetic Emanations of Wired and Wireless Keyboards" (PDF). Martin Vuagnoux, Sylvain Pasini. Retrieved 22 May 2010.
- ^ "EM-Sniffing". Oswald Berthold. Archived from the original on 9 August 2016. Retrieved 25 July 2016.
- ^ "Audio Compression Codecs". E. Olson. Retrieved 22 May 2010.
- ^ "Ogg Vorbis and MP3 Audio Stream charecterization" (PDF). Ayman Ammoura Franco Carlacci. Archived from the original (PDF) on 6 July 2011. Retrieved 22 May 2010.
- ^ "Analyse van de zangstem : geluiden in beeld" (PDF). Koen Eneman, Tom Francart. Retrieved 22 May 2010.
- ^ "Improving the Aesthetic Quality of Realtime Motion Data Sonification". Christoph Henkelmann. CiteSeerX 10.1.1.67.3546.
{{cite web}}: Missing or empty|url=(help) - ^ "Analizador de un espectro musical" (PDF). Andrés Jiménez Sánchez, Amaia de Miguel Morate, Javier Villellas Bernal. Retrieved 22 May 2010.
- ^ "setiQuest Kepler-Exo4 1420 MHz". baudline. Archived from the original on 18 May 2010. Retrieved 23 May 2010.
- ^ "SETI and Kepler-4b". exoplanetology.com. Retrieved 23 May 2010.
- ^ "Exoplanetology Kepler 4b and SETI". portaltotheuniverse.org. Archived from the original on 13 May 2010. Retrieved 23 May 2010.
- ^ "My First Software Defined Radio (SDR) Receiver - 2nd Section Downconverter". Juan Domenech Fernandez. Retrieved 22 May 2010.
- ^ "GNU Radio ist ein freies Toolkit fuer Software Defined Radio". Chaos Computer Club Berlin. Archived from the original on 18 July 2011. Retrieved 22 May 2010.
- ^ "Segnali radio a bassissima frequenza (VLF)". Tito Dal Canton. Retrieved 22 May 2010.
- ^ "Techniques for Measuring Frequency Off-the-Air". John Ackermann. Retrieved 22 May 2010.
- ^ "Using Baudline for Frequency Measurement". John Ackermann. Retrieved 22 May 2010.
- ^ "FFT visualizing : Ardour". Paul Davis. Retrieved 22 May 2010.
- ^ "Baudline FAQ". Baudline. SigBlips DSP Engineering.
- ^ "ITP: baudline -- time-frequency browser designed for spectral visualisation" Archived January 15, 2016, at the Wayback Machine (#784771). Debian Bug Tracking System. The Debian Project. Retrieved 12th May 2015.
External links
- Official website
- User discussion group at Google Groups
- SigBlips DSP Engineering