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Type: Posts; User: jjvande

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  1. Thanks Pete, I'll experiment with changing the...

    Thanks Pete, I'll experiment with changing the volume less frequently. What confuses me is how this buzzing is only happening when I use the line-in. When I switch to the mic-in it goes away. The...
  2. Teensy 4.0 Audio Shield; 344Hz buzz when using line-in

    Hi all,

    I have an odd problem regarding a strange 344Hz buzz which I'm hearing from the teensy audio shield. My setup is as follows:

    electret mic (biased w/ 3.3V and 4.7k resistor)-->100uF cap...
  3. It seems like some sort of bug with...

    It seems like some sort of bug with Serial.print().
    If I only keep the Serial.print("loop \n"); line uncommented, the sketch will run like I expect ONLY if the serial monitor is open. When I close...
  4. Pete, Wow, you're right. Thanks for looking...

    Pete,

    Wow, you're right. Thanks for looking into that. I did the same commenting out all the serial prints and now it works. I didn't think the serial prints would cause an issue like this.
    Do...
  5. Audio Library Synth Generator to AudioRecordQueue, Teensy 4.0 w/ Audio Shield

    Hi all,

    For a school project I'm working on, I need to be able to generate a waveform with the Teensy 4.0 and copy to AudioRecordQueue to do some manipulations of the array before outputting sound...
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    Pete, I can't thank you enough! Being new to...

    Pete,

    I can't thank you enough! Being new to all this sometimes it's difficult to know where to begin looking. AudioRecordQueue and AudioPlayQueue will totally do the trick.

    Thanks!
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    Accessing 128 bit sample packets

    Hi all,

    I'm working on a university senior design team to implement an acoustic feedback cancellation device using the teensy4.0 and audio shield. At this point we'd like to use the CMSIS-DSP...
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    I'm working on a student team right now and would...

    I'm working on a student team right now and would like to utilize the Teensy 4.0 for a DSP project and program the Teensy via Simulink Embedded Coder.
    Unfortunately I'm trying to follow Mathworks...
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