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  • Nebula525's Avatar
    06-03-2020, 10:38 PM
    Good idea, youíre right. No need for them to be mounted on the PCB. Thanks for the suggestion on the jacks. Iíll go ahead and convert the .brd to a Gerber file and order some blank PCBs if everything is checking...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    06-03-2020, 12:45 AM
    Good to know, did not realize you could plug in unbalanced signals to balanced inputs and expect it to work. Iím just hoping there wonít be a lot of noise, but I guess Iíll see once I try it out. Do you have any...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-31-2020, 12:37 AM
    Hi Richard, Ah didnít realize haha, Iíll get to ordering parts! Sounds like a fun project you got going there. Hopefully your PCBs arrive soon! The 4.1 is great 👍 Teensys are super fun to play around with. Would...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-30-2020, 01:26 AM
    Howís it going @palmerr? Hope all is well! Just wanted to check in and see where you are at. Stay safe 🤘
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-20-2020, 01:33 AM
    Great to hear! Iím so excited 😬😬 Yes, youíre absolutely right about needing a big battery. I was planning on using 1-2 18650 cells and a TP4056 charging module. So for each cell that should hopefully be 1800 mah at a...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-16-2020, 07:32 PM
    By the way, does this circuit have to run off the 5V pin? Just asking out of curiosity. Iím wondering because when I run the Teensy off a battery, Iím concerned it wonít be able to supply the 5V without a boost...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-16-2020, 04:09 AM
    Iím glad the answer came to you over a good nightís rest. By the way Iím definitely in no rush so definitely take your time. The files and board look awesome on github 👍
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-13-2020, 01:47 AM
    Just ordered my Teensy 4.1 and audio board 😬 Super excited for this! Shout out to Paul for making these awesome products. 8 MB of flash memory 😮
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-09-2020, 05:26 AM
    Thanks Pete, nice catch. Maybe check out this older thread of someone who was having a similar issue Pangolin? https://forum.pjrc.com/threads/26856-Options-for-AnalogRead-while-AudioInputAnalog-in-Audio-Library
    4 replies | 118 view(s)
  • Nebula525's Avatar
    05-09-2020, 02:37 AM
    I may be wrong here but according to the source of free verb: roomsize is stored in a variable "n" which is passed into a "sat16" from dspinst.h. This object is only defined once during object initialization on line 75....
    4 replies | 118 view(s)
  • Nebula525's Avatar
    05-09-2020, 02:16 AM
    Ah, completely misunderstood as I thought. The dual ganged pot sounds promising. Best of luck, let s know how it goes!
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-09-2020, 02:15 AM
    Nebula525 replied to a thread Flash Memory help in Audio Projects
    If you have a multimeter, perhaps put it in continuous mode (may have a speaker or music icon) and touch the probes to every leg next to each other. If you hear a beep, it means there is a bridge in your solder between...
    16 replies | 316 view(s)
  • Nebula525's Avatar
    05-08-2020, 04:00 AM
    I think we should go the DPDT route if it will allow us to have two phantom separate phantom power switches. In my opinion, the space trade off here is worth it- if I am understanding that correctly. Oh wow the...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-07-2020, 01:25 AM
    I agree, letís not add the extra headers. I actually like the idea of using traditional LEDs simply for their shape. For me, it means I can make a small hole in my enclosure and stick the head of the LED through and...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-07-2020, 12:25 AM
    Okay, yeah I thought it would introduce a lot of design problems. Scratch that! The WS2812B sounds like a cool idea. In my opinion, if the WS2812B is being used to save one GPIO the cost might outweigh the benefit for...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-06-2020, 08:26 AM
    I just found these really cool potentiometers. They have a clear shaft which can light up and models PEL12D & PEL12T have a built in push switch. Theyíre expensive at about $4 each from mouser and are momentary....
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-06-2020, 08:00 AM
    Hi Richard 👋 Looking pretty damn good 😱 I think we should leave out the tricolor LED. I feel as if it would be hard for people to manufacture enclosures correctly implementing the function even though it would look...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-05-2020, 05:06 PM
    No problem at all! Itís looking great. One aesthetic related thing I was looking at was push buttons that internally illuminated but I couldnít find any and didnít know if they would complicate the design more than...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-05-2020, 02:57 AM
    Nebula525 replied to a thread FFT on Teesy 4? in Project Guidance
    Any updates on this thread? Is FFT really not working on teensy 4.0 + the audio board?
    15 replies | 446 view(s)
  • Nebula525's Avatar
    05-05-2020, 02:27 AM
    Okay, great to know about the SGTL's mic pre. I think you may be thinking of @mhelin who suggested running the THAT chip from phantom power. For USB power, I think going off of USB 2.0 spec. sounds like a good idea....
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-04-2020, 03:47 AM
    One further question- would using one side of the line input per a combo jack lose stereo compatibility of signal going into the jack? For example, if I am using a guitar pedal that produces stereo effects such as a...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-04-2020, 03:26 AM
    Great, thank you for your enlightenment on this topic. Super awesome getting to learn from someone who really knows their stuff like you! 1. Very cool. This doesn't mean audio will only be showing up in the left or...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-04-2020, 02:03 AM
    Awesome! I'm glad we are getting more discussion on this. The layout looks great to me in terms of physical size. I think 5" width for two inputs is not a bad deal and since this design has flexibility for reducing...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-03-2020, 05:44 AM
    Richard, The design looks great! I wonder if they made the mic input output through both channels to facilitate mono recording, as mono is a typical way to record microphones. Anyway, if we have flexibility to record...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-02-2020, 02:48 AM
    I think option 2 is the better one in this case. A dual state push button shouldn't really take up too much space and allows for people to use more of their GPIOs for their projects. I know I have to have at least two...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-01-2020, 06:50 PM
    I found another module that has a switching frequency of 400khz. Iím not quite too sure if it meets the other specifications fully though. ...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-01-2020, 02:26 PM
    I see, as you can tell- I donít know much about electrical engineering. This all sounds great! Keeping the pot if it allows us to use it as a gain control knob sounds awesome. Very cool idea of mounting the switch...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    05-01-2020, 03:49 AM
    I get how the switching works now, beautiful engineering. Combo jacks are truly a gift. 2. Ah, I see now about the pot. My thinking was to have a knob next to the combo jack as an input gain- as found on many other...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    04-30-2020, 06:54 PM
    Hi Palmer 👋 Beautiful work!! I love the the board layout and it simply looks fantastic! Great idea of having the physical pot there for gain control. I definitely donít mind going with the eBay modules if you...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    04-30-2020, 05:15 AM
    I now realize that the line out on the audio board is meant to be run through an amp in order o play on monitor speakers. This makes spec #7 useless because it becomes a matter of finding the right amp board at that...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    04-30-2020, 03:21 AM
    Great! So Palmerr and I have been talking about creating a spec for this project. We want to share the design with the community for anyone else who may find it helpful. This spec is going to be for an audio...
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    04-29-2020, 03:04 PM
    Fantastic! Thank you so much for your great work and schematic. I saw your audio boards previously and they looked amazing. I messaged you with an inquiry on design. Thank you!!
    66 replies | 1326 view(s)
  • Nebula525's Avatar
    04-28-2020, 04:54 PM
    Hello 👋 I am planning on adding an XLR input for a condenser microphone onto my audio shield. I have found another thread (https://forum.pjrc.com/threads/42198-Phantom-powered-Teensy) in which they describe their...
    66 replies | 1326 view(s)
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XLR Input on Audio Shield 06-03-2020 10:38 PM
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