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  1. Thanks for that !

    Thanks for that !
  2. hi @dirkenstein, I'd be interested in trying a FP...

    hi @dirkenstein, I'd be interested in trying a FP version if you are interested in/able to share, cheers, Paul
  3. Hi Ben, can you through up an example of the...

    Hi Ben, can you through up an example of the sketch and samples that you're using and I'll have a go. cheers, Paul
  4. hi @bigtony - your attachment in #18 above...

    hi @bigtony - your attachment in #18 above doesn't work, could you re-post it. also could you post the code you're using to read the pots

    cheers Paul
  5. Hi Ken, really nice work and sounds great!

    Hi Ken, really nice work and sounds great!
  6. Hi ETMoody3 I've pasted below: - example file...

    Hi ETMoody3

    I've pasted below:
    - example file (just like the first one in this post that changes a few taps over and over)
    - effect_tapedelay10tap.h which is the header file for the effect...
  7. Thanks again MarkT for the ideas, I made a new...

    Thanks again MarkT for the ideas, I made a new delay object to get round the clicks and pops when you change delay times dynamically.
    It seems to work well letting me adjust multiple taps. It's not...
  8. Hi Mark, I thought that might the be the...

    Hi Mark,

    I thought that might the be the expected behaviour, thanks for confirming and your suggestion - I'll have a go at your second suggestion (cross fading two sets of taps)

    cheers, Paul
  9. Audio Effect Delay Pops & Clicks when changing tap times

    Hi

    I'm using the AudioEffectDelay with a Teensy4 and AudioBoard.

    When I change tap times I get pops and clicks. I'm changing a few tap time together (like changing between different presets if...
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    what is it doing? do you need some feedback on...

    what is it doing? do you need some feedback on the delay?

    cheers Paul
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    I've only ever done it with trial and error and...

    I've only ever done it with trial and error and keeping an eye on AudioMemoryUsage(). The various objects use blocks up differently which I'm sure you know, delay uses blocks up quickly (obviously)...
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    Hi Holger memory consumption is decreased...

    Hi Holger



    memory consumption is decreased if you reduce the largest tap duration



    You need to allocate memory with AudioMemory based on a number of blocks of samples. The default is 1...
  13. Hi Reiner, Your wiring looks ok. The pot...

    Hi Reiner,

    Your wiring looks ok.

    The pot will be expecting to turn about 270 degree to get the full range, from the picture I don't think that mechanism will be able to turn the full range so...
  14. hi Reiner, You should aim to get the full...

    hi Reiner,

    You should aim to get the full range from 0 - 1023, are there any resistors in series with the pots?

    could you post a picture to get an idea of what you're dealing with

    cheers...
  15. hi reibuehl you should wire one end to 3.3V...

    hi reibuehl

    you should wire one end to 3.3V the other end to gnd and the middle pin (the wiper) to one of the Analog input pins.

    do you know what value the pots are?

    if you find the input...
  16. hi cfredisded in your example code, it updates...

    hi cfredisded

    in your example code, it updates the delay time every time you go around the loop - for the T4 this will be really fast (lots of time per sample?).

    if you are just looking to...
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    hi cyclpsrock this thread doesn't answer your...

    hi cyclpsrock

    this thread doesn't answer your specific question but talks about the same issue and points to a shaped envelope object by @a_guy_called_tom...
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    Hi Fluxanode, depends on the library, lots of...

    Hi Fluxanode, depends on the library, lots of them do work without change - what library are you wanting to use?

    Cheers, Paul
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    hi jishnuch It looks as thought you are...

    hi jishnuch

    It looks as thought you are running PlatformIO on a Raspberry Pi - I'm afraid I have no experience of that.

    From your error messages the compiler is looking for the...
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    hi jishnuch compiling for 4.1 works fine for...

    hi jishnuch

    compiling for 4.1 works fine for me with the standard ini file like above.

    i'm using: Teensy 4.11.0 on a mac with macOS10.15.

    If you change the env to Teensy 4.0 does that...
  21. hi Dionysus - can you explain a bit more about...

    hi Dionysus - can you explain a bit more about your setup and what you're doing - are you powering other stuff from the teensy? - a picture would be ideal.

    A teensy and audio board on it's own...
  22. Hi UHF, I use the same mux and had similar...

    Hi UHF, I use the same mux and had similar periods of stability. I'd come back to it the next day and it would be erratic again needing long settle times.

    I thought it might be temperature...
  23. Hi @UHF Afraid I have no insights on the...

    Hi @UHF

    Afraid I have no insights on the memory issue but I've also been converting a project from 3.x to 4.x and your analogRead and Mux issues triggered me.

    After going round in circles for...
  24. Hi Jin, I used a WM8731 on a custom board, it is...

    Hi Jin, I used a WM8731 on a custom board, it is small but not too difficult to solder
    https://forum.pjrc.com/threads/60924-Audio-Board-Equivalent-for-Custom-PCB?p=244469

    Cheers Paul
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    Hi an envelope follower should not be...

    Hi

    an envelope follower should not be difficult - check this thread for a discussion and example https://forum.pjrc.com/threads/29579-Envelope-detector-and-VCA-with-Teensy-s-Audio-library

    I...
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    It's easy to change the number of samples in a...

    It's easy to change the number of samples in a block. I run my effects with AUDIO_BLOCK_SAMPLES set to 16 (one block = 0.36ms long).

    Smaller block sizes work with with most but not all of the...
  27. Hi RobertRobotics, For the Teensy 4.0 you...

    Hi RobertRobotics,

    For the Teensy 4.0 you need a Rev D shield - https://www.pjrc.com/store/teensy3_audio.html.
  28. Hi JayShoe an old thread that speaks to your...

    Hi JayShoe

    an old thread that speaks to your issue https://dsp.stackexchange.com/questions/3581/algorithms-to-mix-audio-signals-without-clipping

    I'd stick a peak object on each of your channels...
  29. Hi FinleyOderSo, can you throw up your latest...

    Hi FinleyOderSo, can you throw up your latest code with the changes you made, Cheers, Paul
  30. I use following with Teensy 4 which works for me ...

    I use following with Teensy 4 which works for me


    #include <WS2812Serial.h> // leds
    #define USE_WS2812SERIAL // leds
    #include <FastLED.h> // leds
    ...
    FastLED.addLeds<WS2812SERIAL,...
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    First go at a new board using the WM8731 codec as...

    First go at a new board using the WM8731 codec as suggested by @blackaddr, easy to solder and seems to work well, bit more testing to do.

    Used pretty much the application circuit from the...
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    I found these helpful: Grounding and Decoupling:...

    I found these helpful:
    Grounding and Decoupling: Learn Basics
    Staying Well Grounded
  33. Here's a simple modification of the standard...

    Here's a simple modification of the standard mixer with 10 inputs, cheers Paul

    20646
  34. Hi Holger, I don't want to hijack your thread but...

    Hi Holger, I don't want to hijack your thread but could I ask about you stereo > mono effect - are you just summing the channels like the mixer or something else? thank Paul

    PS I agree a...
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    Hi, you might want to check out...

    Hi, you might want to check out https://codeberg.org/dcoredump/TeensyMIDIAudio from user @C0d3man for a few ideas
  36. Hi lokki Good you got a fix. I'm no expert but...

    Hi lokki
    Good you got a fix. I'm no expert but looks like there is an influence from the oscilloscope impedance and your long cables as you've found with the cap but I can't say that I understand...
  37. that's quite a lot of reads a second - could you...

    that's quite a lot of reads a second - could you try 2 millis and see if that helps?
  38. @lokki, have you tried slowing your loop down? ...

    @lokki, have you tried slowing your loop down?

    I use keypad on a mac with a mag cable and on battery with no issues
  39. @alrj can you post some sample code that...

    @alrj can you post some sample code that reproduces your problem, it makes it a lot easier to help that way, cheer Paul
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    @blackaddr I've been looking at your schematic,...

    @blackaddr I've been looking at your schematic, which has been really helpful thanks for sharing it.

    I know your board is focussed towards guitars and has significant attention to that with the...
  41. Tops, thanks

    Tops, thanks
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    @blackaddr thanks for that, I'll look into...

    @blackaddr thanks for that, I'll look into WM8731, I can deal with TSOP so looks promising
    Your board looks great. cheers, Paul
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    As far as I know, the 1.8V supply is for VDDD,...

    As far as I know, the 1.8V supply is for VDDD, text below from the Datasheet, the max for VDDD is 2.0V-

    The SGTL5000 requires 2 external power supplies: VDDA and VDDIO. An optional third external...
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    thanks @boxxofrobots, not sure inside of a 70's...

    thanks @boxxofrobots, not sure inside of a 70's stereo was the look I was going for but thanks for the link to Jessa ;)

    doesn't look like many alternative options so will have a look into heat gun...
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    Audio Board Equivalent for Custom PCB

    I've built a custom effects board with Teensy and AudioBoard which has been great fun but the connection from the Audioboard to inputs and outputs are a bit of a mess.

    I know I could tidy up the...
  46. Hi, You need the Rev D for 4.1 ( from here...

    Hi,

    You need the Rev D for 4.1 ( from here TEENSY4_AUDIO Audio board for use with Teensy 4.0 - 4.1, (Rev D))

    There are other changes in pins between 3.6 and 4.1 so you might have to look at...
  47. I'm fairly sure the neopixels are ws2811s (rather...

    I'm fairly sure the neopixels are ws2811s (rather than ws2812s)

    The OctoWS2811.h lib is another of Paul's non-blocking libs that you can use with FastLED as in #5
  48. try #include #define...

    try
    #include <OctoWS2811.h>
    #define USE_OCTOWS2811
    #include <FastLED.h>

    in that order
  49. Hi, That's good lineOutLevel helps a bit....

    Hi,

    That's good lineOutLevel helps a bit. Couple of additional thoughts:

    Here is the text from the design tool on volume, might not affect you as i think you are using line out only (if so do...
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    beautiful looking custom keyboard and excellent...

    beautiful looking custom keyboard and excellent writeup of the process

    p.s. love T800 arm also :)
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