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  1. Hi guys, first off - I am very thankful for all...

    Hi guys, first off - I am very thankful for all the help.
    I was hoping that posting the GitHub link to my code was going to be enough - clearly I was wrong and I will change my behavior.
    ...
  2. Thank you for all your great contributions to the...

    Thank you for all your great contributions to the Forum, @frankB
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    Guys, can somebody point me to how to change the...

    Guys, can somebody point me to how to change the sampling freq of the PT8211 for Teensy4.1? I did find an earlier thread, but that recommendation does not seem to work for 4.1.
    Thank you in advance...
  4. @FrankB, I am having a hard time understanding...

    @FrankB, I am having a hard time understanding how to change the sampling frequency of the PT8211 using your routines...
    When I try to use your routines I2S_MDR_DIVIDE and I2S_MDR_FRACT are not...
  5. Losing COM Serial Port when adding StreamAudio object

    When I add a StreamAudio object I lose the COM port.
    I thought that the teensy was fried and almost tossed it...
    I first wrote a small example using the same technique (I am not a C++ wizard, and...
  6. follow up

    Hi,
    Were you able to solve these issues?

    Thank you
  7. Can you please share what buffer chip did you...

    Can you please share what buffer chip did you install?
    Thank you
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    something like this? ...

    something like this?

    https://excamera.com/sphinx/gameduino3/index.html
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    Tft display w 5 points capacitive screens

    Would like to ask the same. @paul, thank you for your consideration
  10. Teensy for reverse engineering old FPLA 82S153N (PLS153)

    Hello Group,
    This is the forum that I have been using for my hobby, so maybe some of you can help with the following.

    I need to figure out the equations of an old PLA (82S153N,...
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    Thank you!!!

    Thank you!!!
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    summary?

    Can you please summarize how you have accomplished changing the sampling rate?

    Thanks much!
  13. @Paul, I would not mind taking a look and try to...

    @Paul, I would not mind taking a look and try to fix the filter during the upcoming Thanksgiving holiday... If you have any pointer that you'd like to share (whatever you remember) let me know, and I...
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    @Paul, would like to sign up to be a tester when...

    @Paul,
    would like to sign up to be a tester when you release it.

    I'd be happy to pay for it.

    alfa66
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    >>>If you're willing to contribute example code,...

    >>>If you're willing to contribute example code, please try to design it along one of these 2 paths. Github pull requests are the best way to send the code, but posting here is ok too.

    Paul,
    I...
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    Different Approach to Envelope (introduce the possibility to add portamento)

    Hi guys,
    I added the envelope generator to my project with the latest Paul's new Audio dist (from 11/15), for some reason I had a hard time to get it to work.
    I have found a great example from...
  17. Thank you Paul! I will give it another try. ...

    Thank you Paul!
    I will give it another try.

    Also, I will look at the code example for the display + SD card.

    I saw the tutorial, well done - it helped me moving forward with my project.
    ...
  18. Hi Paul, Since I was not able to get this to...

    Hi Paul,
    Since I was not able to get this to work, I reverted back to the Adafruit library, but i really need more speed for my project.
    I noticed that, in the meantime, you released a new purple...
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    Try Increasing the value of AudioMemory. Let me...

    Try Increasing the value of AudioMemory. Let me know if it works.
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    Hey, no worries! It turns out that we have both...

    Hey, no worries!
    It turns out that we have both come up with something that maybe is not really needed - check this: http://www.pjrc.com/teensy/gui/?info=AudioEffectMidSide

    Anyway (and off...
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    Karaoke

    Hi Frank B!
    Great job, that's a clean implementation!

    This is what I was able to concoct some time back, not as elegant, but good enough to impress my kids!...
  22. Hi Paul, hopefully the code below will help. ...

    Hi Paul,
    hopefully the code below will help.

    The bug shows whether or not I add 2.2K pull up resistors to the CS lines of the TFT display and of the EEPROM in your audio shield.

    The first...
  23. I did include the Adafruit_ILI9341 (instead of...

    I did include the Adafruit_ILI9341 (instead of ILI9341_t3) and now my code works.

    After these experiments I came to the conclusion that the library has a small bug that prevents us from correctly...
  24. @mxxx thank you for your suggestion. I was not...

    @mxxx
    thank you for your suggestion.
    I was not familiar with SPIFIFO, but after adding

    SPIFIFO.begin(f_cs, f_mosi, f_sck);

    in the setup, I also included
    digitalWrite(f_cs, LOW); and...
  25. Hello Donziboy2, thank you for the...

    Hello Donziboy2, thank you for the digitalWriteFast suggestion, unfortunately that did not work.
    I also tried SPICLOCK, but i keep missing the first byte of the page read .... :(
  26. No success. I did re-write the equivalent of...

    No success.
    I did re-write the equivalent of flash_read_pages using SPI.beginTransaction (see below), but as soon as I perform any tft operations (such as tft.fillScreen(ILI9341_BLACK) ) I miss the...
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    Was wondering if anybody has tried to connect:...

    Was wondering if anybody has tried to connect: Audio Adapter +W25Q128 and ILI9341

    I am having some issues with flash_read_pages
    ...
  28. Nothing changes by applying 2.2K resistors...

    Nothing changes by applying 2.2K resistors between 3.3V and the CS for the color display (pin 21 in my case) and the CS for the audio shield (pin 6).

    Didn't have much time to look at the SW part,...
  29. There is indeed a conflict with with flash_spi.h...

    There is indeed a conflict with with flash_spi.h and ILI9341_t3.h
  30. Any known conflicts with with flash_spi.h and...

    Any known conflicts with with flash_spi.h and ILI9341_t3.h?

    I am getting closer, the good news is that I am not facing a ground loop.

    I need to investigate the interaction of the optional...
  31. Thank you Paul, i am using the headphones...

    Thank you Paul,
    i am using the headphones actually.

    The buzz is very audible when I use a simple sine wave.
    If I play with removing the "tft.*" lines, the buzz starts with the first...
  32. Dear Forumers, would welcome suggestions on how...

    Dear Forumers, would welcome suggestions on how to fix this.

    I am using the Color Display with Paul's audio shield. Also, I am accessing correctly the optional EEPROM that I installed in the...
  33. Paul, can you please check the DC plug of the...

    Paul,
    can you please check the DC plug of the PCB?
    I did not ordered mines from Mouser, I already had some (maybe they are not the right ones).
    When I connect the power, my walwart unit shorts. I...
  34. Hi Paul, tried that, did not work. This is...

    Hi Paul,
    tried that, did not work.

    This is how I made it work:

    #define TFT_DC 9
    #define TFT_CS 10
    #define TFT_RST 8 // for the purple board

    //#define TFT_DC 20
  35. Paul, the purple board has the RST signal...

    Paul,
    the purple board has the RST signal connected to pin 8 of Teensy 3.1

    So I guess I will have to add the RST control to the graphicstest program.

    Sorry if this is already documented and I...
  36. Hi Paul, thank you. everything works when I put...

    Hi Paul, thank you.
    everything works when I put it on the breadboard.

    I might have done something wrong with the purple board... (i ordered a batch of 3 from OshPark, and 3 sets of components...
  37. ILI9341 not working with color display, Teensy3.1 + purple board

    Sorry to annoy you guys, this must be really, really silly but I can't get this to work.
    I am trying the optimized library with the color display, teensy 3.1 and the purple board.

    The display is...
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    Thank you Frank, I figured this out but forgot...

    Thank you Frank,
    I figured this out but forgot to update the thread - very clever, no need to re-write if the content is the same !

    Have a great week,
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    W25Q128FV Serial Flasher Hi Frank, thanks...

    W25Q128FV Serial Flasher
    Hi Frank,
    thanks again for sharing, here is the log of the first attempt.

    (NEW.256 is a file which contains 8-bit waveforms)

    It seems like it worked, but I am...
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    Thank you for sharing Frank, I just soldered the...

    Thank you for sharing Frank, I just soldered the eeprom on the audio shield today, I will try your utility in the morning.
  41. aliasing

    >>You probably should look at using the arbitraryWaveform() feature of the waveform synthesis object.

    >>http://www.pjrc.com/teensy/gui/?info=AudioSynthWaveform

    >> If you already have a 256...
  42. There is another potential application for a...

    There is another potential application for a variable sample rate in the audio library.
    I finished a prototype of a wavetable-based oscillator (parallel EEPROM + DAC, driven by teensy 3.1), similar...
  43. Thread: Audio Library

    by alfa66
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    (for what counts) totally agree - great points !

    (for what counts) totally agree - great points !
  44. Thread: Audio Library

    by alfa66
    Replies
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    527,594

    I like PJRC solution, and will work for a while...

    I like PJRC solution, and will work for a while for most of us... until Paul comes up with something better of course!
  45. Thread: Audio Library

    by alfa66
    Replies
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    527,594

    @cartere The way I would do this (and I think...

    @cartere

    The way I would do this (and I think I did for my thesis long long ago.... I assume you are looking at just the main frequency in the spectrum):
    - find the peak frequency on the FFT...
  46. Thread: Audio Library

    by alfa66
    Replies
    1,286
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    527,594

    Karaoke effect

    Thank you Paul for your suggestion - I just wish I had more time for this hobby :)
    To familiarize myself with the data structures I needed to work on my own little project, so I started with a...
  47. Thread: Audio Library

    by alfa66
    Replies
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    527,594

    Has anybody implemented any "overlap and add"...

    Has anybody implemented any "overlap and add" type of algorithm with this audio library? I'd like to understand how to use the library data structure to implement filtering algorithms via FFT,...
  48. Thread: Audio Library

    by alfa66
    Replies
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    527,594

    Figured it out - was working on another computer...

    Figured it out - was working on another computer with an older version of Teensyduino .... thanks
  49. Thread: Audio Library

    by alfa66
    Replies
    1,286
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    527,594

    One of my early examples does not compile anymore...

    One of my early examples does not compile anymore - looks like something changed in the audio library ...

    /Users/ALFA/Documents/Arduino/libraries/Audio/output_dac.cpp: In member function 'void...
  50. Thread: Audio Library

    by alfa66
    Replies
    1,286
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    527,594

    Paul, these look really really good - simple but...

    Paul, these look really really good - simple but effective ...
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