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  1. Replies
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    Thank you!!!

    Thank you!!!
  2. Replies
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    summary?

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

    Thanks much!
  3. @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...
  7. 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.
    ...
  8. 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!...
  12. 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...
  13. 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...
  14. @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...
  15. 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 .... :(
  16. 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
    ...
  18. 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,...
  19. There is indeed a conflict with with flash_spi.h...

    There is indeed a conflict with with flash_spi.h and ILI9341_t3.h
  20. 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...
  21. 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...
  22. 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...
  23. 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...
  24. 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
  25. 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...
  26. 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...
  27. 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.
  31. 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...
  32. 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...
  33. Thread: Audio Library

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

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

    by alfa66
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    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!
  35. Thread: Audio Library

    by alfa66
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    469,085

    @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...
  36. Thread: Audio Library

    by alfa66
    Replies
    1,286
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    469,085

    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...
  37. Thread: Audio Library

    by alfa66
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    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,...
  38. Thread: Audio Library

    by alfa66
    Replies
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    469,085

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

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

    by alfa66
    Replies
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    469,085

    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...
  40. Thread: Audio Library

    by alfa66
    Replies
    1,286
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    469,085

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

    Paul, these look really really good - simple but effective ...
  41. Thank you for your kind words ! I designed it to...

    Thank you for your kind words !
    I designed it to midi-fy my Monotron Duo. It hosts a dual DAC and a dual digital potentiometer. With the Teensy 3.1 I have 3 DAC outputs in total.
    Here is a demo:...
  42. thank you - in the works

    Thank you, it's in the works....
  43. Merci beaucoup, so I don't need to invest more...

    Merci beaucoup, so I don't need to invest more time researching. A+
  44. Teensy 3.1 USB Midi - cannot connect to USB Midi Keyboard controller (iPad works ok)

    Hopefully I am wrong, please someone say so...
    I did find a lot of examples showing how to use the teensy as a MIDI controller. But I want to use Teensy as a sound generator, and I want to connect a...
  45. UPDATE I figured out I need to send the...

    UPDATE

    I figured out I need to send the following from Teensy during the setup:

    byte SysExQuery[] = {0xF0, 0x7E, 0x7F, 0x06, 0x01, 0xF7};

    usbMIDI.sendSysEx(6, SysExQuery);

    but I get no...
  46. USB Midi In with Teensy 3.1 and Arturia Analog Factory MIDI controller issues

    I have been using the example that I shared with Paul & the PJRC community to build an interface to the Korg Monotron Duo:

    int ledPin = 13;
    void OnNoteOn(byte channel, byte note, byte velocity)...
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