Noise in the data
Let's start with the most obvious thing: we don't have a lot of data. The most discouraging thing about the September evaluation was that the number of evaluators dropped from 7 to 3. The December eval was completed by 4 people. With so few people looking at questions, it's not surprising that voting will be noisy.
Since April, there ...
I'll give you my perspective as a semi-frequent user who isn't part of the community. The site seems kind of dead, which is surprising for a beta with 4,500 visits per day and 260 'avid' users. The two questions I've asked (here and here) both received 1 answer (both fine answers) from users with relatively low reputation. Where are all the 1k+ users? Why ...
A possibility: May be there aren't that many interesting new DSP questions. People keep asking the same newbe/broad questions and asking more deep/to-the-point questions takes much more effort than on other sites.
What might help - although I don't think it's practical in SE - is to have an online DSP IDE which will make the question askers and answerer's ...
As background, please read Does this site have a chance of succeeding?
The two key bits of criteria are:
Does the site have a growing library of answered questions that attract new visitors?
Does the site have a growing community of experts to ask, answer, edit, evaluate, and organize new questions?
The Area 51 numbers help us answer those questions, but ...
If I may bring up one thing for image processing as I am mostly interested in the area in this site, many people seem to misunderstand that single script or single method of image processing would work for their problem and thus is generally a target they look for. But proper image processing should not be treated that way. Like data analysis, proper ...
The things I try to do to bring unanswered questions to justice are:
Answer it myself (if I can).
Put a bounty on it (if I'm interested in the answer).
Re-word or query the asker for more information if that is required to form a sensible answer.
Try to understand why the question has not been answered, and fix that.
If all else fails, then the last option ...
OFDM transmitter bandwidth
Net Score: 5 (Excellent: 5, Satisfactory: 3, Needs Improvement: 0)
Shouldn't the Sampling Theorem imply that there should be no information loss at all after a signal is processed?
Net Score: 3 (Excellent: 3, Satisfactory: 6, Needs Improvement: 0)
How to intuitively understand the state space formulation of ...
Biggest turnoff on the site right now is the recent flood of homework questions. They are usually put in here without any effort on both, trying to solve it and trying a good question style. Sometimes it's just a bad phone photo of the question from the textbook.
Due to their academic nature, the questions are more often than not very uninteresting. You can ...
What is the cut-off frequency of a moving average filter?
Net Score: 2 (Excellent: 2, Satisfactory: 1, Needs Improvement: 0)
Speech segmentation for speaker recognition
Net Score: -2 (Excellent: 0, Satisfactory: 1, Needs Improvement: 2)
Two generated tones creates a side tone - how to avoid the side tone
Net Score: 1 (Excellent: 1, ...