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  1. Lerxst

    Article on Parabolic Microphone Gain

    Yes, totally agree with what you have written. The post I was responding to has links to video recorded with the 8-inch dish which doesn't sound terrible although it has clearly lost its bottom end. For certain applications such a highly filtered signal might be acceptable, for others, not at...
  2. Lerxst

    Article on Parabolic Microphone Gain

    I'm sorry I did not respond sooner to you. I am not on birdforum very often and I missed this post previously. I suppose my immediate reaction is that I expect an 8-inch dish to perform "reasonably well" in the sense that with a cutoff around 1.5kHz, you'll still be boosting a large part of our...
  3. Lerxst

    Article on Parabolic Microphone Gain

    Not sure who this question is directed to, but in the case of the Wildtronics, it is anything but fragile. It is easy to remove the dish itself from the handle/microphone unit, and roll into into a more compact cylindrical shape. It pops right back into form when you unroll it and there seems to...
  4. Lerxst

    Article on Parabolic Microphone Gain

    Following up on the Wildtronics "booster disc"... I was looking at the microphone/disc enclosure and noticed it does have a factory seal, so it made me reconsider the idea that there are active elements residing throughout the structure. I then looked through the website a bit more and found...
  5. Lerxst

    Article on Parabolic Microphone Gain

    The disc you mention is what the manufacturer refers to as a "booster plate." I have reached out to them for more details on this component but they will divulge nothing, claiming it is entirely proprietary. I've been looking for the patent application but have not found it yet. And I'm loathe...
  6. Lerxst

    Article on Parabolic Microphone Gain

    Thank you. Oddly enough I noticed earlier today on another post that the equations were not showing up. I've now fixed the problem, and if you reload the page, they should all be there now. I am in the process of revamping many of the animations for the articles I did on roof prisms / phase...
  7. Lerxst

    Article on Parabolic Microphone Gain

    Thank you Jon, those are all very good points, and I will work to incorporate discussion of them into my rev2. Myself I like the "tinniness" because at my age my high frequency content is disappearing. And even the best ears are not immune to the nonlinearity of the Fletcher Munson curves...
  8. Lerxst

    Article on Parabolic Microphone Gain

    I wrote this last month and forgot about it. Simply meant to be a reference for anyone bored enough to read it. Some years ago I was looking for papers on this and only found one that really touched on the topic (it is cited) in a non-trivial way. But it was also pretty dense at points and hard...
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