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  • feklee's Avatar
    03-26-2020, 02:21 AM
    I measured the resistance between the sleeve and ring 2 on my Bose QC25 headphones: 5.6 kΩ This led me to adding a 5.5 kΩ resistor to my plug: There were some other random audio issues, but they magically went...
    1 replies | 76 view(s)
  • feklee's Avatar
    03-17-2020, 02:34 AM
    I already asked this on Electrical Engineering Stack Exchange, but so far without an answer: How to connect a line-out to mic on Android plug? (CTIA) We have set up a sound installation in the Hong Kong jungle:...
    1 replies | 76 view(s)
  • feklee's Avatar
    03-14-2020, 03:08 AM
    See my original post: 3.6 A Teensy 3.6 plus matching audio shield was easier to get. Iím in Hong Kong, ordered from Taobao. Itís more expensive here than in the West. I shouldíve ordered two audio shields though....
    6 replies | 211 view(s)
  • feklee's Avatar
    03-11-2020, 08:41 AM
    According to my own research, it should be possible to use the two ADCs as well. That would give a total of four inputs. I haven't tried it yet. However, I would want to keep one ADC for reading potiometers. So that...
    6 replies | 211 view(s)
  • feklee's Avatar
    03-11-2020, 07:14 AM
    The audio shield has five mono inputs (2 ◊ stereo + 1 ◊ mic), and then the Teensy 3.6 has 2 ADCs. Using AudioControlSGTL5000::inputSelect(), however, it only seems to be possible to select one stereo input, i.e. two...
    6 replies | 211 view(s)
  • feklee's Avatar
    03-10-2020, 03:53 AM
    Thank you! Well I only need 500 ms of delay, and the sketch is small, so I guess getting the RAM was superfluous. Anyhow, I added a comment to the aforementioned YouTube video, which may be helpful for others.
    4 replies | 143 view(s)
  • feklee's Avatar
    03-10-2020, 03:27 AM
    Thanks, that's it! Sorry for not reading the documentation thoroughly. I was following Paul's video Teensy Audio Library, Delay Line Demo with (0:27): AudioMemory(10); What RAM is my sketch then using? Also, what...
    4 replies | 143 view(s)
  • feklee's Avatar
    03-10-2020, 02:50 AM
    I have a Teensy 3.6 with the Audio Shield and RAM (23LC1024T-I/SN 全新芯片SOIC8IC SRAM 1M SPI 20MHZ 8SOIC): When I delay the microphone input, I hear cracks if the delay is greater than about 10. Is this is a...
    4 replies | 143 view(s)
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Connecting a Teensy 3.6 to mic in on an Android phone? 03-26-2020 02:21 AM
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05-12-2017