View source for Baudline

{{Short description|Signal analyser}}
{{Infobox software
| name = baudline
| logo =
| screenshot = Baudline spectro1.png
| caption = Baudline Signal Analyzer
| developer = [http://sigblips.com SigBlips DSP Engineering]
| released = {{Start date and age|2000|09}}
| programming language = [[C (programming language)|C]]
| operating system = [[FreeBSD]],<ref>{{cite web |url=http://www.freshports.org/audio/baudline |title=FreshPorts -- audio/baudline |publisher=DVL Software Limited |access-date=22 May 2010 | archive-url= https://web.archive.org/web/20100518192716/http://www.freshports.org/audio/baudline| archive-date= 18 May 2010 | url-status= live}}</ref> [[Linux]],<ref>{{cite web |url=http://www.linux.org/apps/AppId_8213.html |title=Linux Online - Application: baudline |publisher=Linux Online, Inc. |access-date=22 May 2010 |archive-url=https://web.archive.org/web/20101207132741/http://www.linux.org/apps/AppId_8213.html |archive-date=7 December 2010 }}</ref> [[macOS|Mac OS X]], [[Solaris (operating system)|Solaris]]
| genre = [[List of numerical analysis software|numerical analysis]]
|license=proprietary subscription<ref name="news">{{cite web|url=http://www.baudline.com/news.html |title=News |website=Baudline |publisher=SigBlips DSP Engineering |access-date=15 July 2021}}</ref>
| website = {{URL|www.baudline.com}}
}}
The '''baudline''' [[Time-frequency representation|time-frequency]] browser is a [[signal analysis]] tool designed for [[scientific visualization]]. It runs on several [[Unix-like]] operating systems under the [[X11|X Window System]]. Baudline is useful for [[Real-time computing|real-time]] spectral monitoring, collected signals analysis, generating test signals, making [[distortion]] measurements, and playing back audio files.
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==Applications==
* [[Acoustic cryptanalysis]]<ref>{{cite web |url=http://people.csail.mit.edu/tromer/acoustic/ |title=Acoustic cryptanalysis:On nosy people and noisy machines |publisher=Adi Shamir, Eran Tromer |access-date=22 May 2010 }}</ref><ref>{{cite web |url=http://seclab.uiuc.edu/pubs/LeMayT06.pdf |title=Acoustic Surveillance of Physically Unmodified PCs |publisher=Michael LeMay, Jack Tan |access-date=22 May 2010 |archive-url=https://web.archive.org/web/20100615210240/http://seclab.uiuc.edu/pubs/LeMayT06.pdf |archive-date=15 June 2010 }}</ref><ref>{{cite web |url=http://security1.win.tue.nl/~bskoric/seminar/papers1/MuijnckHughes_acoustic.pdf |title=2IF03 – Seminar IST Overview of Acoustic Side Channel Attacks |publisher=Jan de Muijnck-Hughes |access-date=17 February 2010 }} {{Dead link|date=October 2010|bot=H3llBot}}</ref><ref>{{cite web |url=https://www.usenix.org/events/sec09/tech/full_papers/sec09_attacks.pdf |title=Compromising Electromagnetic Emanations of Wired and Wireless Keyboards |publisher=Martin Vuagnoux, Sylvain Pasini |access-date=22 May 2010 }}</ref><ref>{{cite web |url=http://www.medienwissenschaft.hu-berlin.de/de/medienwissenschaft/medientheorien/downloads/hausarbeiten/em-sniffer.pdf/at_download/file |title=EM-Sniffing |publisher=Oswald Berthold |access-date=25 Jul 2016 |archive-url=https://web.archive.org/web/20160809151342/http://www.medienwissenschaft.hu-berlin.de/de/medienwissenschaft/medientheorien/downloads/hausarbeiten/em-sniffer.pdf/at_download/file |archive-date=9 August 2016 |df=dmy-all }}</ref>
* [[Audio codec]] [[lossy compression]] analysis <ref>{{cite web |url=http://baudline.com/solutions/codec/index.html |title=Audio Compression Codecs |publisher=E. Olson |access-date=22 May 2010 }}</ref><ref>{{cite web |url=http://sysdoc.doors.ch/CREATIVE/oggVorbis.pdf |title=Ogg Vorbis and MP3 Audio Stream charecterization |publisher=Ayman Ammoura Franco Carlacci |access-date=22 May 2010 |archive-url=https://web.archive.org/web/20110706224354/http://sysdoc.doors.ch/CREATIVE/oggVorbis.pdf |archive-date=6 July 2011 }}</ref>
* [[Audio signal processing]]
* [[Bioacoustics]] research
* [[Data acquisition]] (DAQ)
* [[Gravitational Wave]] analysis<ref>{{cite web |url=https://gwburst.gitlab.io/documentation/latest/html/frdisplay.html |title=coherent WaveBurst Data Display |publisher=cWB Team |access-date=16 Jul 2021 }}</ref><ref>{{cite web |url=https://gwburst.gitlab.io/documentation/latest/html/install/baudline.html |title=coherent WaveBurst baudline installation |publisher=cWB Team |access-date=16 Jul 2021 }}</ref>
* [[Infrasound]] monitoring
* [[Musical acoustics]]<ref>{{cite web |url=https://perswww.kuleuven.be/~u0023287/reports/zangstemanalyse2.pdf |title=Analyse van de zangstem: geluiden in beeld |publisher=Koen Eneman, Tom Francart |access-date=22 May 2010 }}</ref><ref>{{cite CiteSeerX |title=Improving the Aesthetic Quality of Realtime Motion Data Sonification |author=Christoph Henkelmann |citeseerx=10.1.1.67.3546 }}</ref><ref>{{cite web |url=http://eprints.ucm.es/9016/1/TC2005-38.pdf |title=Analizador de un espectro musical |publisher=Andrés Jiménez Sánchez, Amaia de Miguel Morate, Javier Villellas Bernal |access-date=22 May 2010 |archive-date=18 July 2011 |archive-url=https://web.archive.org/web/20110718172552/http://eprints.ucm.es/9016/1/TC2005-38.pdf |url-status=dead }}</ref>
* [[radar]]<ref>{{cite web |url=https://www.rtl-sdr.com/analyzing-radar-pulses-baudline-rtl-sdr/ |title=Analyzing radar pulses with baudline and an RTL-SDR |date=12 January 2015 |publisher=admin at rtl-sdr.com |access-date=10 Nov 2021 }}</ref><ref>{{cite web |url=https://www.electronicsforu.com/technology-trends/google-just-put-a-radar-inside-a-watch |title=Project Soli: RADAR That Fits Inside A Watch |date=22 May 2016 |publisher=electronicsforu.com |access-date=10 Nov 2021 }}</ref><ref>{{cite web |url=https://atap.google.com/soli/ |title=Wave hello to Soli touchless interactions |publisher=Google ATAP |archive-url=https://web.archive.org/web/20160602072917/https://atap.google.com/soli/ |access-date=10 Nov 2021 |archive-date=2016-06-02 }}</ref>
* [[Seismology|Seismic data processing]]
* [[SETI]]<ref>{{cite web |url=http://baudline.blogspot.com/2010/04/setiquest-kepler-exo4-1420-mhz.html |title=setiQuest Kepler-Exo4 1420 MHz |date=24 April 2010 |publisher=baudline |access-date=23 May 2010 | archive-url= https://web.archive.org/web/20100518053827/http://baudline.blogspot.com/2010/04/setiquest-kepler-exo4-1420-mhz.html| archive-date= 18 May 2010 | url-status= live}}</ref><ref>{{cite web |url=http://exoplanetology.blogspot.com/2010/05/kepler-4b-and-seti.html |title=SETI and Kepler-4b |date=10 May 2010 |publisher=exoplanetology.com |access-date=23 May 2010 }}</ref><ref>{{cite web |url=http://www.portaltotheuniverse.org/blogs/posts/view/56588/ |title=Exoplanetology Kepler 4b and SETI |publisher=portaltotheuniverse.org |access-date=23 May 2010 | archive-url= https://web.archive.org/web/20100513021255/http://www.portaltotheuniverse.org/blogs/posts/view/56588/| archive-date= 13 May 2010 | url-status= live}}</ref>
* [[Signal analysis]]
* [[Software Defined Radio]]<ref>{{cite web |url=http://www.domenech.org/homebrew-sdr/receiver-2.htm |title=My First Software Defined Radio (SDR) Receiver - 2nd Section Downconverter |publisher=Juan Domenech Fernandez |access-date=22 May 2010  }}</ref><ref>{{cite web |url=https://berlin.ccc.de/wiki/GNU_Radio |title=GNU Radio ist ein freies Toolkit fuer Software Defined Radio |publisher=Chaos Computer Club Berlin |access-date=22 May 2010 |archive-url=https://web.archive.org/web/20110718172001/https://berlin.ccc.de/wiki/GNU_Radio |archive-date=18 July 2011 }}</ref>
* [[Spectrum analyzer|Spectral analysis]]
* [[Very low frequency]] (VLF) reception<ref>{{cite web |url=http://www.dalcanton.it/tito/esperimenti/lowfreq |title=Segnali radio a bassissima frequenza (VLF) |publisher=Tito Dal Canton |access-date=22 May 2010 }}</ref>
* [[WWV (radio station)#Standard frequency signals|WWV frequency measurement]]<ref>{{cite web |url=http://www.febo.com/time-freq/FMT/technique/index.html |title=Techniques for Measuring Frequency Off-the-Air |publisher=John Ackermann |access-date=22 May 2010 }}</ref><ref>{{cite web |url=http://www.febo.com/pages/baudline/ |title=Using Baudline for Frequency Measurement |publisher=John Ackermann |access-date=22 May 2010 }}</ref>
==Features==
* Spectrogram, [[frequency spectrum|Spectrum]], Waveform, and Histogram displays
* [[Fast Fourier transform|Fourier]], [[Cross-correlation|Correlation]], and [[Raster graphics|Raster]] transforms
* [[Signal-to-noise ratio|SNR]], [[Total harmonic distortion|THD]], [[SINAD]], ENOB, SFDR distortion measurements
* Channel [[equalization (audio)|equalization]]
* [[Function generator]]
* [[Downsampling|Digital down converter]]
* Audio playing with real-time DSP effects like [[Sample rate conversion|speed control]], [[Pitch shifter (audio processor)|pitch scaling]], [[Tuner (radio)|frequency shifting]], matrix [[surround sound|surround]] panning, filtering, and digital gain boost
* Audio recording of multiple channels
* [[JACK Audio Connection Kit]] sound server support<ref>{{cite web |url=http://ardour.org/node/361#comment-1160 |title=FFT visualizing: Ardour |date=20 August 2006 |publisher=Paul Davis |access-date=22 May 2010 }}</ref>
* Import [[Audio Interchange File Format|AIFF]], [[Au file format|AU]], [[WAV]], [[FLAC]], [[MP3]], [[Ogg]] [[Vorbis]], [[Audio Video Interleave|AVI]], MOV, and other [[file format]]s
==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.<ref>{{cite web|url=http://www.baudline.com/faq.html |title=Baudline FAQ |website=Baudline |publisher=SigBlips DSP Engineering}}</ref> The new baudline version is available via a subscription model and site license.<ref>{{cite web|url=http://www.baudline.com/news.html |title=Baudline News |website=Baudline |publisher=SigBlips DSP Engineering}}</ref>
==See also==
* [[Linux audio software]]
* [[List of information graphics software]]
* [[List of numerical analysis software]]
* [[Digital signal processing]]
==References==
{{reflist|30em}}
==External links==
* {{Official website|www.baudline.com}}
* [https://groups.google.com/group/baudline User discussion group] at Google Groups
* [http://www.sigblips.com/ SigBlips DSP Engineering]
{{Media player (application software)}}
[[Category:Time–frequency analysis]]
[[Category:Linux media players]]
[[Category:Acoustics software]]
[[Category:Numerical software]]
[[Category:Unix software]]
[[Category:Audio software with JACK support]]
[[Category:Science software for Linux]]
[[Category:Science software for macOS]]
[[Category:Audio software for Linux]]