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  • Blackaddr's Avatar
    01-15-2018, 02:03 AM
    Yes, you should be able to see and decode all the MIDI messages send by the organ. You could maybe display them on the screen as text, or perhaps write them as MIDI files to the SD card? Here's a link I found about...
    6 replies | 304 view(s)
  • Blackaddr's Avatar
    01-14-2018, 06:43 PM
    To keep the PCB cost reasonable I had to stay inside the 10cm x 5cm form factor. As a result I could fit 2 rotary encoders and and two TS jacks in addition to the 2 MIDI DIN jacks. Here's the schematic. and a...
    6 replies | 304 view(s)
  • Blackaddr's Avatar
    01-11-2018, 12:58 PM
    Thank you for your compliments! Once again, sorry about the typo in the demo, I appreciate your patience. I should probably add the DRY OUTPUT explanation to the documentation. I thought about extending the GUI but...
    132 replies | 29984 view(s)
  • Blackaddr's Avatar
    01-11-2018, 03:37 AM
    First up, I took a close look at the BA4_TGA_Pro_delay_reverb.ino and found a typo. I didn't noticed before because I was doing stereo testing. The connection to mixer 0 should have been i2sIn 0, not i2sIn 1. I've...
    132 replies | 29984 view(s)
  • Blackaddr's Avatar
    01-10-2018, 02:03 PM
    I've got a couple things for you to try regarding the program not running. I assume you've already grabbed the latest version of the BAGuitar library from the repo. 1) Are you running the example...
    132 replies | 29984 view(s)
  • Blackaddr's Avatar
    01-05-2018, 03:29 PM
    On a related note, I had some problems regarding I2S starting before I2C on one of my other projects. In order to work around it, I had to modify the I2S object code locally (in a backwards compatible manner) such that...
    6 replies | 302 view(s)
  • Blackaddr's Avatar
    01-03-2018, 01:06 PM
    Blackaddr replied to a thread Memoryboard 4 in Audio Projects
    I'm speculating, but If there isn't enough demand, it may not be worthwhile for Paul and Robin to spend time supporting another SKU. By the time you factor in the time costs for Paul to order, track and store inventory,...
    1 replies | 160 view(s)
  • Blackaddr's Avatar
    01-02-2018, 01:16 AM
    Great idea! The Teensy's USB MIDI library will make it easy to use the host (when connected) as a MIDI sink/source in addition to the external jacks. I freakin' love the various USB classes supported by the Teensyduino...
    6 replies | 304 view(s)
  • Blackaddr's Avatar
    12-31-2017, 02:57 PM
    When I started my Teensy Guitar Audio project, I really appreciated the discussion and feedback I got on the development thread. So let's try it again with my next project, a touchscreen MIDI controller! Here's the...
    6 replies | 304 view(s)
  • Blackaddr's Avatar
    12-27-2017, 01:54 AM
    Ground loops create a big antenna to pick up any stray interference that find their way in. While power line hum is a common symptom, anything to do with a computer is an EMI super-nova. Cell phones love to cause...
    5 replies | 336 view(s)
  • Blackaddr's Avatar
    12-24-2017, 02:24 PM
    Take a look at Hammond's 1590 series listing. I've not fitted the board yet in an enclosure but it looks like you need about 1.5" of internal depth, so look for boxes with at least that. http://hammondmfg.com/dwg.htm ...
    132 replies | 29984 view(s)
  • Blackaddr's Avatar
    12-23-2017, 03:08 PM
    Here's a photo from one of my early protos, both mem chips are oriented the same way. Pin 1 is a circular depression on the chips installed in the photo.
    132 replies | 29984 view(s)
  • Blackaddr's Avatar
    12-23-2017, 03:17 AM
    I'll get a picture up showing the Pin 1 orientation tomorrow.
    132 replies | 29984 view(s)
  • Blackaddr's Avatar
    12-23-2017, 03:16 AM
    Maybe post the code so others can give it a try?
    2 replies | 260 view(s)
  • Blackaddr's Avatar
    12-22-2017, 07:47 PM
    So far I've had a good response to my Guitar Audio Shield. https://www.tindie.com/products/Blackaddr/arduino-teensy-guitar-audio-shield/
    16 replies | 1910 view(s)
  • Blackaddr's Avatar
    12-21-2017, 01:53 PM
    Not a dumb question at all! The TGA Pro board has been design to generate all the voltages it needs (3.3V digital, 3.3V analog, 12V analog) solely from the voltages that are provided by the Teensy microcontroller board...
    132 replies | 29984 view(s)
  • Blackaddr's Avatar
    12-20-2017, 10:20 PM
    I think you both make some excellent points. If you are relying on the Audio GUI to make your audio connections and class instances for you because you can't do it yourself in the INO code, I think it's WELL WORTH...
    4 replies | 284 view(s)
  • Blackaddr's Avatar
    12-14-2017, 01:53 PM
    I presume you are using the Arduino IDE. In order to make normally complicated things (like compiling and linking dependencies) work auto-magically, it does some things that get in the way of more advanced user needs. ...
    4 replies | 302 view(s)
  • Blackaddr's Avatar
    12-14-2017, 01:43 PM
    The codec permits them to be used simultaneously, and you can enable/control them over I2C, however they require external components (a pair of caps and a pair of resistors for L/R outputs). The datasheet specs the caps...
    132 replies | 29984 view(s)
  • Blackaddr's Avatar
    12-12-2017, 10:51 PM
    Yeah, that sounds about right to me. The details that may come into play might include avoiding the sharp transition when the audio buffer wraps around. When you loop a sample, the point at which it jumps back to the...
    2 replies | 221 view(s)
  • Blackaddr's Avatar
    12-12-2017, 01:36 PM
    You can probably record to the microSD card as a wav file.
    5 replies | 303 view(s)
  • Blackaddr's Avatar
    12-12-2017, 02:24 AM
    The existing GUI can be used and the exist modules can be used with a few caveats: 1) The AudioControlWM8731 can be used as-is, but you cannot disable the codec's HPF which introduces noise. The same problem occurs...
    132 replies | 29984 view(s)
  • Blackaddr's Avatar
    12-11-2017, 09:51 PM
    The Teensy's support a second I2S interface through it's quad audio support, but you if you attempt to piggy back a PJRC audio board, you'd need to flywire the MCLK/BCLK/LRCLK pins for sure since they are not brought...
    132 replies | 29984 view(s)
  • Blackaddr's Avatar
    12-11-2017, 08:13 PM
    It is compatible in the sense that it uses the same pins for the codec control (I2C) and the same pins for the audio interface (I2S) as the PJRC audio board. However, you cannot stack the two of them together in order...
    132 replies | 29984 view(s)
  • Blackaddr's Avatar
    12-08-2017, 04:20 PM
    Hi Paul, I have recently picked up an Audio Shield to compare against my own board for issues just like this. I'll try to reproduce the problem with that. If I cannot, it must be either in my board or in my library....
    4 replies | 424 view(s)
  • Blackaddr's Avatar
    12-08-2017, 03:25 AM
    That would explain the two year old thread perfectly!!! I'm fascinated by fast (low latency) pitch detections for bass frequencies. I pitch shift my bass to guitar frequencies (think Royal Blood style) for the band I...
    24 replies | 4046 view(s)
  • Blackaddr's Avatar
    12-08-2017, 03:10 AM
    Hey duff, just wanna say it's awesome to see some bass love for the Teensies! Did you ever get around to building an enclosure?
    24 replies | 4046 view(s)
  • Blackaddr's Avatar
    12-08-2017, 01:36 AM
    2nd batch of boards has completed testing and have been added to the inventory at the Tindie Store. Also, development on BAGuitar library at Github is continuing. The BAAudioEffectDelayExternal now supports both SPI...
    132 replies | 29984 view(s)
  • Blackaddr's Avatar
    12-01-2017, 04:25 PM
    They answer to every software porting question is, "Yes, if you can compile it and all it's dependencies". That said, It would likely be impossible to port that application. First off it's an application, not a...
    7 replies | 631 view(s)
  • Blackaddr's Avatar
    11-30-2017, 12:54 AM
    Next batch has been shipped from the assembly house. Should arrive within a week, and after final assembly and testing they'll be put into Tindie store inventory. Tindie Store
    132 replies | 29984 view(s)
  • Blackaddr's Avatar
    11-26-2017, 01:20 PM
    I'm not sure I understand exactly what you're asking so you might need to rephrase. It sounds like you're asking if the pins on the Teensy that are used with Audio Board can be used for other things when not connected...
    5 replies | 483 view(s)
  • Blackaddr's Avatar
    11-26-2017, 01:02 PM
    You should only need to connect power, ground, I2C (for codec control) and all the I2S signals for audio (MCLK, BCLK, LRCLK, data in, data out). I've done it on my teensy based TGA Pro but not with the official audio...
    5 replies | 483 view(s)
  • Blackaddr's Avatar
    11-19-2017, 01:24 PM
    Good call! I'm so used to running my Teensy at full speed I forget it has a gas pedal. At 96 MHz, the problem still happens occasionally (say 1 in 10 transfers). At 72 Mhz and below it seems to have no issues, al...
    4 replies | 424 view(s)
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About Blackaddr

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About Blackaddr
Biography:
Engineer by day, Maker by night.
Location:
Canada
Interests:
Gutiar Digital Modelling
Occupation:
Engineer

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