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  • CorBee's Avatar
    Yesterday, 08:20 AM
    Hi, In the batdetector project ( https://forum.pjrc.com/threads/38988-Bat-detector ) we use the oscillator function at very high samplerates (up to 352k) without any problems. In the heterodyne mode we mix this...
    9 replies | 162 view(s)
  • CorBee's Avatar
    09-04-2020, 04:03 PM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, Ive just uploaded a hex where the HiF_bin is not used anymore, this is a direct link https://github.com/CorBer/teensy_batdetector/blob/master/pre_compiled_hex/firmware_DEV20200904.hex regards Cor
    648 replies | 60385 view(s)
  • CorBee's Avatar
    09-03-2020, 03:14 PM
    CorBee replied to a thread Bat detector in Audio Projects
    Instead of changing the HiF_bin (used currently in the detection of ultrasound) its also an option to completely remove the test, the Hif_bin is only used in this line of code of bat_fft.h if...
    648 replies | 60385 view(s)
  • CorBee's Avatar
    09-03-2020, 05:33 AM
    CorBee replied to a thread Bat detector in Audio Projects
    In the startrekversion I chain a heterodyne-mixer after the time-expansion. This allows you to hear the sounds from 0-100000 Khz as a band from -5Khz to 5Khz with the TE_expander on 1/10. Not ideal but fun to do ;)
    648 replies | 60385 view(s)
  • CorBee's Avatar
    09-02-2020, 01:04 PM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, We could make the HiF_bin simply half the samplerate minus 5Khz or so ? Since I dont think at the top of the range will be as sensitive ? Cor PS: I could also open the startrek version :) With that option you...
    648 replies | 60385 view(s)
  • CorBee's Avatar
    08-29-2020, 10:44 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hope you like it !
    648 replies | 60385 view(s)
  • CorBee's Avatar
    08-28-2020, 01:27 PM
    CorBee replied to a thread Bat detector in Audio Projects
    The update is available as a hex and its a "trial" version. Everything should work as before but the detector-screens will be different and will show the calls more detailed. Next to that if you want to listen to...
    648 replies | 60385 view(s)
  • CorBee's Avatar
    08-27-2020, 04:05 PM
    CorBee replied to a thread Bat detector in Audio Projects
    Sometimes ... i wished I would hear a bit more bats around my house. Most evenings when I try to test functionality of the batdetector I can hear crickets/grasshoppers and if I am lucky one or two pipistrelle bats....
    648 replies | 60385 view(s)
  • CorBee's Avatar
    08-22-2020, 10:44 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi Craig, Never tried that, I dont know what spectra and power a powerline emits. regards Cor
    648 replies | 60385 view(s)
  • CorBee's Avatar
    08-19-2020, 11:54 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi Frank, Thanks for the help, I see that this will take considerable time to create. For the moment being I am letting this rest. regards Cor
    648 replies | 60385 view(s)
  • CorBee's Avatar
    08-19-2020, 11:02 AM
    CorBee replied to a thread Bat detector in Audio Projects
    @DD4WH Frank I would like to incorporate the ZoomFFT in the Teensy_batdetector. That way we could look (in more detail) at the more interesting part of the spectrum instead of looking at the full (and sometimes...
    648 replies | 60385 view(s)
  • CorBee's Avatar
    08-16-2020, 01:15 PM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, I like to hear/see people come up with new ideas, combining two MEMS ... interesting !! Using the ADC ... questions . Just to add my grain of salt ... as I am mainly busy with the software ... If you look into...
    648 replies | 60385 view(s)
  • CorBee's Avatar
    08-16-2020, 05:59 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi Ivano, Welcome in this project, I hope you can share your experience with the teensy-batdetector as soon as you have build it. I am especially interested to hear/see how the different microphones, that you...
    648 replies | 60385 view(s)
  • CorBee's Avatar
    08-15-2020, 01:47 PM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi Hendrik, I looked at the Mini-Con-X connectors before but found them way to expensive. regards Cor
    648 replies | 60385 view(s)
  • CorBee's Avatar
    08-15-2020, 01:30 PM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, I have just uploaded the most recent code for the teensy_batdetector. Its available from https://github.com/CorBer/teensy_batdetector A lot of work during testing of this version in previous months has been...
    648 replies | 60385 view(s)
  • CorBee's Avatar
    08-15-2020, 11:34 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Interesting to see how it performs. I am using plugs on my detectors also, thusfar I have used a GX16 connector but the one that I am currently building I am trying to see if using a 3.5mm stereo-jack works as planned....
    648 replies | 60385 view(s)
  • CorBee's Avatar
    08-15-2020, 05:41 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi Hendrik, Thanks for sharing that article, I have seen it before. We are interested to hear from you how good that SMX-US microphone works in the current setup. The article mentions that these Mics are not produced...
    648 replies | 60385 view(s)
  • CorBee's Avatar
    08-07-2020, 05:08 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi Hendrik, Nice from you to share the experience ! The PCB from edwin is a great addition to this project as it makes the building so much easier. regards Cor
    648 replies | 60385 view(s)
  • CorBee's Avatar
    08-05-2020, 03:39 PM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, For those interested, you can download the beta version of the TeensyBatDetector V1.0 from https://github.com/CorBer/teensybat_V1_beta This is NOT yet the finished product so you might encounter issues. Please...
    648 replies | 60385 view(s)
  • CorBee's Avatar
    07-27-2020, 11:37 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, Edwin (THANKS !!) and I are currently working on testing a completely renewed version of the TeensyBatdetector. Several of the requests posted in the forum have found a place in this version (v1.0). You will...
    648 replies | 60385 view(s)
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Audio lib ..Oscillator object can it be run above 22k ? Yesterday 08:20 AM
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