About: Spectrograms
Metadata
| Name: | Spectrograms |
| ID: | m0505 |
| Language: | English (en) |
| Summary: | Spectrograms visually represent the speach signal, and the calculation of the Spectrogram is briefly explained. |
| Subject: | Science and Technology |
| Keywords: | DFT, digital signal processing, discrete Fourier transform, DSP, Fourier transform, Hanning window, spectrograms |
| License: | Creative Commons Attribution License CC-BY 1.0 |
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| Authors: | Don Johnson (dhj@rice.edu) |
| Copyright Holders: | Don Johnson (dhj@rice.edu) |
| Maintainers: | Don Johnson (dhj@rice.edu), CJ Ganier (seejaie@rice.edu), John Cottrell (jac3@rice.edu) |
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| Version: | 2.19 (history) |
| Created: | Jul 18, 2000 12:00 am GMT-5 |
| Revised: | Jun 5, 2009 2:45 pm GMT-5 |
Version History
| Version: | 2.19 Jun 5, 2009 2:45 pm GMT-5 by Connexions |
| Changes: | Modified markup for explicit .eps image reference |
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| Version: | 2.18 Nov 30, 2007 4:38 pm US/Central by Don Johnson |
| Changes: | Made edits suggested in lens review. |
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| Version: | 2.17 Jun 7, 2007 5:46 pm GMT-5 by Don Johnson |
| Changes: | Fixed a bad reference. |
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| Version: | 2.16 Apr 25, 2005 7:53 pm GMT-5 by Charlet Reedstrom |
| Changes: | update to cnxml-0.5 |
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| Version: | 2.15 Jul 27, 2003 3:20 pm GMT-5 by Don Johnson |
| Changes: | Fixed intermodule link errors. |
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| Version: | 2.14 Aug 16, 2002 12:00 am GMT-5 by (Unknown) |
| Changes: | Fixed several math errors. |
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| Version: | 2.13 Aug 14, 2002 12:00 am GMT-5 by (Unknown) |
| Changes: | found that print problem is in the last math in exercise 1, replaced unicode apos with keyboard apostrophe, removed hardcoded figure number in cnxn |
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| Version: | 2.12 Aug 5, 2002 12:00 am GMT-5 by (Unknown) |
| Changes: | Testing for MathML bugs. None found. changed mode=inline to default action. |
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| Version: | 2.11 Apr 22, 2002 12:00 am GMT-5 by (Unknown) |
| Changes: | audited for cnxml and mathml errors |
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| Version: | 2.10 Oct 23, 2001 12:00 am GMT-5 by (Unknown) |
| Changes: | Fixed error in note placement. |
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| Version: | 2.9 Sep 11, 2001 12:00 am GMT-5 by Brent Hendricks |
| Changes: | Converted to CNXML 0.3.5 |
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| Version: | 2.8 Aug 24, 2001 12:00 am GMT-5 by (Unknown) |
| Changes: | Changed <m:and/> to <m:mo>and</m:mo> (Jenn). |
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| Version: | 2.7 Aug 24, 2001 12:00 am GMT-5 by (Unknown) |
| Changes: | Changed keywords. |
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| Version: | 2.6 Aug 20, 2001 12:00 am GMT-5 by (Unknown) |
| Changes: | I re-uploaded the images and their .eps files. |
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| Version: | 2.5 Aug 20, 2001 12:00 am GMT-5 by (Unknown) |
| Changes: | Uplodad the figures. |
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| Version: | 2.4 Aug 20, 2001 12:00 am GMT-5 by (Unknown) |
| Changes: | upload the figures for this module. |
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| Version: | 2.3 Jul 17, 2001 12:00 am GMT-5 by (Unknown) |
| Changes: | keywords added made John Cottrell a maintainer fixed minor errors |
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| Version: | 2.2 Jun 1, 2001 12:00 am GMT-5 by (Unknown) |
| Changes: | Nothing, I am simply re-presenting to reflect changes in the stylesheet. |
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| Version: | 2.1 May 31, 2001 12:00 am GMT-5 by (Unknown) |
| Changes: | Updated from version .2 CNXML to .3 CNXML, converting Presentation MathML to Content. |
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| Version: | 2.0 Oct 17, 2000 12:00 am GMT-5 by Brent Hendricks |
| Changes: | Bumped version to 2.0 |
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How to Cite and Attribute This Content
The following citation styles comply with the attribution requirements for the license (CC-BY 1.0) of this work:
American Chemical Society (ACS) Style Guide:
Johnson, D. Spectrograms, Connexions Web site. http://cnx.org/content/m0505/2.19/, Jun 5, 2009.
American Medical Assocation (AMA) Manual of Style:
Johnson D. Spectrograms [Connexions Web site]. June 5, 2009. Available at: http://cnx.org/content/m0505/2.19/.
American Psychological Assocation (APA) Publication Manual:
Johnson, D. (2009, June 5). Spectrograms. Retrieved from the Connexions Web site: http://cnx.org/content/m0505/2.19/
Chicago Manual of Style (Bibliography):
Johnson, Don. "Spectrograms." Connexions. June 5, 2009. http://cnx.org/content/m0505/2.19/.
Chicago Manual of Style (Note):
Don Johnson, "Spectrograms," Connexions, June 5, 2009, http://cnx.org/content/m0505/2.19/.
Chicago Manual of Style (Reference, in Author-Date style):
Johnson, D. 2009. Spectrograms. Connexions, June 5, 2009. http://cnx.org/content/m0505/2.19/.
Modern Languages Association (MLA) Style Manual:
Johnson, Don. Spectrograms. Connexions. 5 June 2009 <http://cnx.org/content/m0505/2.19/>.
Footer
More about this content: Metadata | Version History
This work is licensed by Don Johnson under a Creative Commons Attribution License (CC-BY 1.0), and is an Open Educational Resource.
Last edited by Connexions on Jun 5, 2009 2:45 pm GMT-5.