jvphotog

Fs of 44.1kHz is the default value coming from the original Teensy Audio library. The OpenAudioArduinoLibrary around which my fx lib is built does implement a setting for the Fs, however i did not implement it in all the modules. Some day i...

Version 2.0 is out: https://github.com/hexeguitar/TGX4 (don't forget to git pull the dependencies)

Gui and the pedal itself in action:

Your project looks fantastic and I admire your productivity. Arriving to finished version in so little time is an achievement. I wish I could motivate myself to do more 🙂

The bottom lid has been officially screwed in, a long journey is coming to an end (probably). Now i'll try to make some music with it while testing all the functions, document them (worst part) and post it on github. There has been some...

GUI work is so time consuming... Expression pedal controlling the wah and updating the corresponding slider on the display: https://streamable.com/1jml92 BOOST section is renamed to PREAMP and contains wah + boost + octave up now. Also the...

Thanks for the feedback! Looks like I didn't place the 0.1uF cap close to the chip at all. I just moved things around a bit this morning. I fully expect to have a lot of noise on the breadboard. I already have most of the prototype on a...

From a quick look everything looks OK (no guarantee). It could be helpful to check the datasheet and see which capacitors have what function. This is important to place them on the pcb. E.g. there is one 0.1µF for VDDIO which should be placed as...

Hi! I'm the original author of the OpenAudio library (though Bob Larkin carries it forward now). In OpenAudio are a couple of frequency domain examples. These are probably your best shot without coding up something whole-ly knew. While I know...

More work on the Wah section: the implementation is based on the work by Transmogrifox https://cackleberrypines.net/transmogrifox/src/bela/inductor_wah_C_src/ adapted to the current TGX4 workflow (mono processing, bypass is stereo) and with a...

@tomas Thank you! It's been a journey and i think it will go further. Having the tested hw base i'll try to run the NAM models on Teensy next. While researching this topic lately i found a few PCB pics of the IK ToneX pedal, which, surprise...

@Pio I just wanted to say that this is one of the most amazing projects on this forum. Congratulations! I am watching your progress, since some years ago I did a prototype of guitar FX box using STM32F401 which is nowhere near to Teensy 4 in...

The 3 band tone stack (AMP section) is independent and always on. There is also a global high pass filter at the end of the signal chain. I need to somehow squeeze the wah into the gui now. I think i'll change the Booster tab to "Preamp" and it...

Very nice! Any way you can add a global eq? How’s the esp32 tft screen/control integration coming along?

What this project was still lacking is a decent wah, not only for the usual "quack" sounds, but also as a pre EQ tone shaping tool. Adding it now. I'm not after modelling any specific models, but rather using one as a starting point and tweak it...

I'm still deep in the GUI(ESP32) - Teensy integration. Preset System: supports up to 128 presets (if SD card is present) or 8 if using EEPROM only. EEPROM is still used to hold the 1st 8 presets. Acts like a backup copy, SD cards can fail...

Tried this today, so far works like a charm!!. Replaced the core files (made a backup just in case) and worked. It does consume more AudioMemory than the stock usb. In my program used 20 blocks before (mostly to pass samples between blocks) and...

The stock USB audio can have a few sync issues, leading to dropped or extra samples. If you’re feeling brave you could try the update linked here. You may or may not want to change the channel count, but it’s worked well for me on Windows - be...