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  1. Hi Paul, Thanks for the link to the...

    Hi Paul,



    Thanks for the link to the different compression variants. Looks interesting. Perhaps this can help to write such an effect. I scanned the forum for already existing code and found...
  2. Hi Richard, That sounds very interesting....

    Hi Richard,



    That sounds very interesting. I'd like to try that. I have already built some "effects" in the design of the audio library (chorus, mono-stereo-panning, stereo-mono). Would you...
  3. I have found out that I am probably beoeating a...

    I have found out that I am probably beoeating a compressor in some way. It's a pity that there is no finished object in the audio library for this yet.

    Thanks, Holger
  4. SGTL5000: Does setting lineOutLevel() influence the output signal level?

    Hi @ll,

    I have the problem that my audio code currently produces a low-level signal. Yes: I can try to multiply the signal before sending out. But how about the lineOutLevel()-method for the...
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    [solved]

    Ok, I solved my problem: The changed buffer sizes seemed to be ok, but I used the wrong program for uploading the data. If I use


    amidi -p hw:2,0,0 -s addon/SD/90/RitCh1.syx

    it seems to work....
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    MIDI SYSEX buffer too small (USB-MIDI)

    Hi!

    I am writing some MIDI SYSEX code for https://www.parasitstudio.de/projects/microdexed/ and tried to implement a MIDI bank upload. Such a DX7 bank consists of 32 voices and together a SYSEX...
  7. Many thanks! I will take a close look at the...

    Many thanks! I will take a close look at the schematics and start to build my own when I have restored my KiCAD environment.

    Regards, Holger
  8. Yes, I have a TGA Pro and I have some adapter...

    Yes, I have a TGA Pro and I have some adapter boards. They are working for the TGA but not for my project because I need some more routed pins for the encoders which your board doen't have. I think I...
  9. Ok, thanks for this information. Hmmmm, my PCB is...

    Ok, thanks for this information. Hmmmm, my PCB is designed for using the Rev C boards, so the only way seems to build an adapter (and hope that I won't get those signaling problems).

    Thanks, Holger
  10. Ok, it seems to be pin compatible to the T_4.0...

    Ok, it seems to be pin compatible to the T_4.0 (for the pins which match the footprint).

    Thanks, Holger
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    Thanks @Paul (fixed minutes before 1.52 :))

    Thanks @Paul (fixed minutes before 1.52 :))
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    Hi! FYI: I tried 1.52#6 on Linux (Kubuntu...

    Hi!

    FYI:

    I tried 1.52#6 on Linux (Kubuntu 20.04) and Arduino-1.8.12: Installation ok.

    When I am trying to install my MicroDexed-project (which uses USBHost_t36.h) for Teensy-4.1, I am...
  13. Teensy-4.1 and Teensy audio shield (on MicroDexed)

    Hi @ll,

    I got the new T_4.1 and tried an inline replacement inside for my MicroDeded. I am using the Rev B/C audio shields from Teensy. It seems that T_4.1 is not compatible with them. Can anyone...
  14. Ahhhh! I thought I am getting a pin number when...

    Ahhhh! I thought I am getting a pin number when using BUILTIN_SDCARD and havn't checked this before. Many thanks!!!!

    Regards, Holger
  15. Check for SD card on t_3.6 or audio-shield

    Hello,

    I have a little problem with my T_3.6 + audio-shield: I want to check if a sd-card is placed into the T_3.6 and, if not, than try to check if there is one installed on the audio-shield. But...
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    We changed the handling of the audio queue, so...

    We changed the handling of the audio queue, so this is perhaps not necessary anymore.



    I currently have no T_4.0 running. I fact I got some T_4.0 yesterday, but I havn't time to test -p erhaps...
  17. Many thanks!!! This is a very cool testing tool...

    Many thanks!!! This is a very cool testing tool and it works with wine on Linux and MicroDexed connected via USB! :-)

    Is there a way to change the controller numbers of the pots?

    Regards, Holger
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    Thanks for showing! The "dev" branch supports...

    Thanks for showing! The "dev" branch supports already T_4.0. But it will take some time to finish all the changes for the new version (including dual/split mode for the T_4.0).

    Regards, Holger
  19. Great! 64 note are 4 times a DX7 :-) Currently I...

    Great! 64 note are 4 times a DX7 :-)
    Currently I am writing the code for multi instances, so when it's ready it may be possible to run 4 different voices at a time :-)



    Currently I have some...
  20. Hey, that's pretty cool! Thanks for testing. ...

    Hey, that's pretty cool! Thanks for testing.

    The noise can be buffer underrun or (what I think) overload (too loud). This is shown as XRUN or PEAK counter every 5 seconds on the serial console....
  21. Thanks @tele_player for sharing! Can you try to...

    Thanks @tele_player for sharing! Can you try to increase MAX_NOTES to 32 or more (inside config.h)? I am curious about how many notes can be played with the T_4.0 simultaniously.

    Currently there...
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    I just forgot to mention: The code is using CMSIS...

    I just forgot to mention: The code is using CMSIS (arm_q15_to_float()) for getting the modulator factor as a float. IMHO this will only work with T_3.5/T_3.6/T_4.0. I think I have to convert this to...
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    Thanks for testing! I will try to add more taps...

    Thanks for testing! I will try to add more taps and optimize a little bit the code. Because it fits into the Teensy audio stack you can try to add filters behind the modulated signal or use any...
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    Hi @ll, after reading, testing and changing...

    Hi @ll,

    after reading, testing and changing much of my code I am proud to say that I have a running modulated delay effect ;)

    The current code with a simple example is located at...
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    Hey, that's pretty cool!!! As a solution for...

    Hey, that's pretty cool!!!

    As a solution for the block = receiveWritable(0); you have to add your 3 signals to the original signal, perhaps like this:


    int16_t *bp;
    ...
    block =...
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    I think I have fixed my code (have to test it the...

    I think I have fixed my code (have to test it the next days) so my crackling noise in the background is away...



    1.) I am also not an audio-programming-professional, so your solution might be a...
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    Thanks for answering! I took a look into your...

    Thanks for answering! I took a look into your code and have some (stupid?) questions:

    1.) Why do you use a zeroblock? Wouldn't it be easier to use memset() to fill the block with zeros?
    2.) Why...
  28. Thread: Drum pad

    by C0d3man
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    The code is currently designed for the...

    The code is currently designed for the TeensyMIDIAudio breakout board and is still a work in progress (I'm just desperate at programming a chorus effect). It should work without a display but...
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    Hi all, after weeks of testing I have no idea...

    Hi all,

    after weeks of testing I have no idea anymore for getting my modulated_delay working without aliases and I hope someone of the audio-pro's can help.

    First of all: My code is located at...
  30. Thread: Drum pad

    by C0d3man
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    Hi Sandro, I am using samples stored in...

    Hi Sandro,



    I am using samples stored in PROGMEM with a Teensy-3.6. Fortunately, samples and program fit into PROGMEM (using 94%). My code is located at...
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    Ah, ok - I understand... Yes, keeping an array...

    Ah, ok - I understand...

    Yes, keeping an array for notes, piezos, velocity should be a solution... like:



    ...
    int notes[] = { 29, 42, 30 , 33 };
    int piezos[] = { A0 ,A1 ,A2, A5};
    int...
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    Hi, do you already have added a MIDI out...

    Hi,

    do you already have added a MIDI out? o
    Or do you want to use MIDI over USB?

    It would be a big advantage if you could post your current code.

    As a fast way to show how MIDI could work...
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    Many thanks! I have tried a few things and...

    Many thanks!

    I have tried a few things and hope to have learned a lot in the meantime. Currently I use filter coefficents for a lowpass calculated with the Iowa-Hills-IIR-Filter-Designer, which I...
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    Many thanks @Frank! Very good information. Just...

    Many thanks @Frank! Very good information. Just tried a little bit around and learned much new things about this topic!

    Regards, Holger
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    Ok, you told me that a few months ago, but I...

    Ok, you told me that a few months ago, but I don't understand it until now. I usually have to try something like this by myself and try to solve the individual problems one after the other.

    I have...
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    I think this can be done inside the class with...

    I think this can be done inside the class with multiple taps (like effect_chorus.cpp). This would no eat so much memory like parallel instances.
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    Absolute no problem @PaulStoffregen! I'm really...

    Absolute no problem @PaulStoffregen! I'm really curious about the new Teensy. Maybe by then we'll have a modulated delay / chorus that works.
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    Hi Guys, I am a little bit confused: you are...

    Hi Guys,

    I am a little bit confused: you are discussing about an algorithm which is exactly the one I posted some hours before this thread was opened. I also pointed to my thread...
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    Hi @quarterturn, in fact I am trying this. See...

    Hi @quarterturn,

    in fact I am trying this. See my post about modulated delay just before your post. But I currently have some trouble with clicking noise.

    At night I had an idea how to fix...
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    Modulated Delay: Chorus/Flanger

    Hello,

    i am trying to build a modulated delay for the audio library. The whole thing should work as a chorus/flanger.

    As base I used effect_delay.*. I added an input as modulation source. The...
  41. Hello, I just finished a beta version of the...

    Hello,

    I just finished a beta version of the MicroMDAEPiano. It's not all perfect yet, but at least I'm on my way to a usable EPiano based on the MDA-EPiano.

    What's new?
    - Complete menu based...
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    As I wrote : "Even if it doesn't look as if the...

    As I wrote :
    "Even if it doesn't look as if the platform.txt referenced at https://faust.grame.fr/doc/tutorials...nsy-with-faust matches the current TeensyDuino-1.45/Arduino-1.8.8: it works and the...
  43. Samplers are setting looping points for long...

    Samplers are setting looping points for long notes (or for a piano sample for a decaying note). As long as you have no support for this in your wavetable player, you need lots of memory (IMHO).


    ...
  44. Hi Marc, many thanks! I hope to get MicroDexed...

    Hi Marc, many thanks! I hope to get MicroDexed "ready" the next weeks, because my next project will be a SYSEX-programmer for the DX7. It will be based onto a NEXTION touch display and I am very...
  45. Hi @laughingrice, as MarkzP mentioned:...

    Hi @laughingrice,

    as MarkzP mentioned: MicroDexed (a FM-synth compatible synth). But better using the repo at codeberg: https://codeberg.org/dcoredump/MicroDexed.

    Another one:...
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    Hi Paul, hi Pete, Thank you so much for your...

    Hi Paul,
    hi Pete,

    Thank you so much for your help. I made a very simple mistake: I didn't use the Teensy example as a template, but one from the MIDI_Library. After I did it the way @Pete...
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    Sending MIDI over USB

    Hi all,

    I try to send MIDI over the USB port of a Teensy-3.6. I use the following simple test script:

    #include <MIDI.h>

    #include <midi_UsbTransport.h>

    static const unsigned...
  48. My current UI implementation is based on an I2C...

    My current UI implementation is based on an I2C Display and two rotaries (see https://codeberg.org/dcoredump/TeensyMIDIAudio-Pictures/src/branch/master/Rev-1.7). This is only for selecting some...
  49. MicroDexed loads standard DX7-SYSEX - currently...

    MicroDexed loads standard DX7-SYSEX - currently only soundbanks of 32 voices. I don't know if the original Dexed has another format for SYSEX, but it seems like it has...



    Nice! I noticed some...
  50. Hi, wow - cool! You are the first one who...

    Hi,



    wow - cool! You are the first one who tried without a kit!

    Have you used the latest commit of MicroDexed?
    Have you tried to use the files from the repository...
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