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  1. Hello, post a picture of what you have and also...

    Hello, post a picture of what you have and also the code you are using cheers Paul
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    Hi @tsitze, I might have picked you up wrongly...

    Hi @tsitze, I might have picked you up wrongly but I thought you want to run a function, at an interval to check your array with some sort of watcher function.
    If watcher identifies something wrong...
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    https://www.pjrc.com/teensy/td_timing_IntervalTime...

    https://www.pjrc.com/teensy/td_timing_IntervalTimer.html
  4. Thanks for looking at this... I'm using...

    Thanks for looking at this...

    I'm using 14,15,16 &17 at present - so got 4 good.

    Trying to use 22(A8) but lots of noise no matter what I do (closeness to MCLK?) - may be able to do more...
  5. T4.0 Re-assigning pins to get more analogue inputs

    Don't know if this is easy, hard or impossible....

    Audio Project using T4.0 and Audioboard Rev D.

    Rev D knocks out a number of analogue inputs and I've got 6 pots that I want to read - not...
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    Hi, I'm assuming you are using the Audio-board,...

    Hi,
    I'm assuming you are using the Audio-board, can you confirm what version of Audio Board it is (it is show on the back of the board, it should be Rev D for Teensy 4) and also please post a...
  7. Hi marbeuhan08, if you were referring to my post...

    Hi marbeuhan08, if you were referring to my post at #27 - it is only referring to the tube response data files that @scruffy was looking for and whether they're converted to a format for the standard...
  8. T4 Audioboard LRCLK + BCLK alternative location

    I'm moving an Audioboard project from T3.x to T4, using the new Audioboard (RevD).

    The project currently uses pin 20 & 21 as analog pins and all the other topside analog pins are in use also....
  9. +1 for interest in this and how to place and...

    +1 for interest in this and how to place and access large arrays in Flash.

    I'm using PlatformIO, verbose build categorises the memory usage as:

    Memory Usage -> http://bit.ly/pio-memory-usage...
  10. Good to hear you're up and running, have fun :D

    Good to hear you're up and running, have fun :D
  11. Thanks for looking at that @Defrafster that fixes...

    Thanks for looking at that @Defrafster that fixes it for me and makes sense (sgtl must have been enabled from first sketch then when power removed needs re-enabled). All good for me with...
  12. Thanks for having a look at this, I tried again...

    Thanks for having a look at this, I tried again with the second sketch including all the libs, same result - after remove from USB, serial indicates running but no tone.

    for completeness the...
  13. I'm still having some issues, I've tried it now...

    I'm still having some issues, I've tried it now with 2 T4 and Audioboard combo with same results which ends in no Audio and 0V between GND and headphones (Paul's test from above).

    A repeatable...
  14. Brian, I've had some unusual results with...

    Brian,

    I've had some unusual results with Teensy 4/Audioboard that I haven't got to the bottom of yet - some sketches run consistentley others do not. I've used the Audioboard with other Teensy...
  15. D'oh! I should have tried that. Works perfectly -...

    D'oh! I should have tried that. Works perfectly - thanks
  16. @scruffy - I've ported them over, let me know if...

    @scruffy - I've ported them over, let me know if you're looking for them
  17. Waveshaper - storing waveshape arrays in flash

    I'm using AudioEffectWaveshaper with Teensy3.6 and the Audio Board in an audio effect project. I'm running low on memory so want to move the waveshape arrays to flash rather than RAM.

    To do this...
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    https://www.pjrc.com/teensy/td_libs_AudioConnectio...

    https://www.pjrc.com/teensy/td_libs_AudioConnection.html

    Covers a little of this although probably not all the detail you’re looking for.

    I was going to do some experiments to synchronise the...
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    Hi @Mortjo, A bit of practical feedback from...

    Hi @Mortjo,

    A bit of practical feedback from a live audio effect project that I've been working on. I had same issue with mixing dry and wet signals giving a noticable clangy chorus effect on...
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    @UHF wow - that looks excellent and super...

    @UHF wow - that looks excellent and super functional, I bet it's been a labour of love for a few months!
    How does it sound ? I'd love to hear your 'Soild Bass' patch :)
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    there shouldn't be a problem, post an example or...

    there shouldn't be a problem, post an example or it is difficult to help. cheers paul
  22. the JOS stuff looks great ( ~1GB of on-line...

    the JOS stuff looks great ( ~1GB of on-line publications, sound examples, and software ) - thanks for the pointers
  23. Thanks Andrew, I'll check those out

    Thanks Andrew, I'll check those out
  24. Book Recommendations for Audio Programming

    Hi,

    Any recommendations for an introductory book on audio programming?

    I've completed a few midi and Audio library projects with Teensy, created/modifed a few of my own library effects so have...
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    Looks great, I've ordered a couple. Thanks for...

    Looks great, I've ordered a couple. Thanks for all the hard work to bring this to us.

    A quick question - does it work with the Audio Adapter Board?

    Cheers, Paul
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    Hi @igorbb, I'm not sure if I understand what...

    Hi @igorbb,

    I'm not sure if I understand what you're trying to achieve but the Audio Effect Bitcrusher has a sample rate adjustment that gives a simple sample rate adjustment effect

    Cheers,...
  27. @kaylen - remove the #include line and...

    @kaylen - remove the #include <Servo.h> line and see if that resolves the issue
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    If you google 'arduino step sequencer' you will...

    If you google 'arduino step sequencer' you will get lots of ideas
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    Hi Ayal, Apols for not directly answering...

    Hi Ayal,

    Apols for not directly answering your question but...Looking at the video I do think they are recording and looping the sound (i.e. not recording it to SD and playing it back).

    It...
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    Have a look at...

    Have a look at https://www.arduino.cc/en/Tutorial/toneMelody for notes rather than frequencies
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    I'm using VS Code with Platform IO on a Mac....

    I'm using VS Code with Platform IO on a Mac. Really smooth installation and works well with Teensy. https://platformio.org/platformio-ide
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    The current BitCrusher effect in the Audio...

    The current BitCrusher effect in the Audio library has a sample rate reduction effect that works the way that @gfvalvo suggest which won't get you exactly to 26.04 kHz but may be close enough atleast...
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    I'm not a guitar person but looks and sounds...

    I'm not a guitar person but looks and sounds great (both the hardware and the software).

    Had a quick look at the library - really useful to see how the library works and the techniques - thanks...
  34. Hi, When I have used trellis with the Audio...

    Hi,

    When I have used trellis with the Audio Shield I've used SDA0(18) and SCL0(19) and they seem to work fine on the same i2c pins as audio shield - try removing all the wire statements

    In...
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    Came across this 8 voice FM synth module by...

    Came across this 8 voice FM synth module by hallmark on muff https://github.com/hallmar/Eurorack-Modules/tree/master/Polyg

    sounds excellent...
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    Walter - microSoundRecorder looks great - your...

    Walter - microSoundRecorder looks great - your coding ability and understanding of Teensy surpasses mine by a mile or 10 (just graduating from Arduino to VSCode).

    I very roughly follow what you...
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    WMXZ - do you have any links or details as to how...

    WMXZ - do you have any links or details as to how to do this (change audio lib sampling frequency), thanks
  38. @john-mike I've been having a play around with...

    @john-mike I've been having a play around with the granular effect, great fun and actually really useful to get a better understanding of the AudioLib.

    I've been hoping someone would add some...
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    I use these...

    I use these host adapters then connect to the teensy just like a simple serial interface which seems to work well with the midi controlers that I have tried (Korg and Novation).....
  40. Hi, Integration is super easy: supply the USB...

    Hi,
    Integration is super easy: supply the USB Host board with 5V and GND from the Teensy board and connect the Teensy RX1 input (pin 0) to the USB Host boards TX pin. You will then get midi data...
  41. I use the same Hobbytronics usb host module to...

    I use the same Hobbytronics usb host module to use a usb midi controller (korg nano keys) without a computer - super easy to integrate with teensy the midi library
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    I've got a spare Memoryboard 4 from my OSH Park...

    I've got a spare Memoryboard 4 from my OSH Park order, if anyone UK based wants it drop me a note and I'll pop it in the posts (free to a good home). Cheers, Paul

    PS many thanks to Frank and Paul...
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