FreqTweak

FreqTweak^[2][3][4][5] is an open-source^[6] tool for real-time audio spectral manipulation and display. It is free software, available under the GNU General Public License. FreqTweak can (and is supposed to) be connected to other audio software using the JACK Audio Connection Kit.

Description

FreqTweak is FFT-based, and supports up to 4 channels. An FFT analysis is applied to each audio channel, and every individual frequency band can have a different effect applied to it. In version 0.6.1 the following effects are available:

• EQ cut/boost
• Pitch scaling
• Gate
• Compressor
• Delay
• Limit
• Warp

References

1. ↑ "FreqTweek project's page at Sourceforge". Retrieved 19 November 2011. 
2. ↑ Werner, Niklas (2007). [https://books.google.com/books?id=-Slix5KMYyAC&pg=PA61&dq="FreqTweak"+-inpublisher:icon&as_brr=0#v=onepage&q="FreqTweak"3Aicon&f=false Entwicklung eines nativen Programms unter Unix zur synchronen Visualisierung von Audiosignalen im Spektralbereich] (in German). GRIN Verlag. p. 61. ISBN 3-638-70202-2. 
3. ↑ Berdahl, Edgar (August 25, 2005). "Acoustic Feedback Cancellation For Public Address Systems" (PDF). ccrma.stanford.edu, technical report. p. 8. 
4. ↑ Guo, Yu-Hung (June 2007). "An Embedded Middleware for Component-Based Software Development and the Development Environment" (PDF) (in Chinese). National Cheng Kung University, Taiwan, Master's thesis. pp. 73–74, 89–91. 
5. ↑ Phillips, Dave (April 2005). Where Are We Going And Why Aren't We There Yet?. 3rd International Linux Audio Conference (LAC2005). Karlsruhe, Germany: Zentrum fur Kunst und Medientechnologie. p. 148. CiteSeerX 10.1.1.126.8960. 
6. ↑ "FreqTweak Open-Source Project". SourceForge.