I paid to upgrade, but don't have access to the new level
Very infrequently someone contacts me after paying for an upgrade saying they are unable to access the new content. You are supposed to have immediate access to the new content level. If this happens, try logging out of allsignalprocessing.com and restarting your browser. If that doesn't work, let us know right away and we will fix the problem.
Can I change the playback speed of the videos?
Yes, although the solution I know of requires using Chrome as your web browser. There are several extensions for Chrome that allows you to adjust speed for any html5 video being played through Chrome. They are available at Chrome Speed Change Extensions .
Can you fix the video quality in fullscreen view?
All the videos are recorded in high definition (HD) and HD is the default for serving the video. You may wish to check your internet connection speed. The other possible explanation for poor quality is that you've turned off the HD option in the Vimeo player. There is an HD icon on the right side of the progress bar for the video. Clicking this icon will toggle HD service. Make sure HD is on for the best quality.
Is MATLAB required to use the lessons?
No. All content in the lessons are accessible without the use of MATLAB. MATLAB code for computer demos used in the lesson are provided for those who have access to MATLAB. This allows further exploration of the concepts by trying variations on the demos.
Can you recommend a signal processing textbook?
Signal processing textbook recommendations depend on many factors. For example, different signal processing textbooks cover different topics of interest and are appropriate for different backgrounds. The introductory level is served by books such as Signal Processing First (McClellan, Schafer and Yoder, Pearson/Prentice Hall 2003) and Signals and Systems, 2nd Ed., (Haykin and Van Veen, Wiley 2003. Of course this one is my favorite.) The text I use in my senior-level signal-processing class is Discrete-Time Signal Processing, 3rd Ed. (Oppenheim and Scafer, Prentice-Hall 2010). For topics in estimation and detection theory I often use Steven Kay's texts Statistical Signal Processing, Vol. 1, Estimation Theory (Kay, Prentice Hall 1993) and Vol. II, Detection Theory (Kay, Prentice Hall 1998). I also like Statistical Signal Processing: Detection, Estimation, and Time Series Analysis (Scharf, Addison-Wesley 1991).
Free signal-processing textbooks:
There are several "free" signal processing textbooks available on the web, including Introduction to Signal Processing by Orfandis and The Scientist and Engineer's Guide to Digital Signal Processing by Smith.
Do you take requests for topics?
Yes - I welcome suggestions and requests for lessons on specific topics. Please keep in mind that it normally takes a considerable block of time to develop and post a lesson and most topics require multiple lessons. Consequently I may not able to accommodate all requests or it may take some time before I can post requested lessons.
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