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  1. Pensive

    XLR Input on Audio Shield

    Oh....my.....goodness........ that is a comprehensive little thing isn't it!! :) Wow. Half of me want to just build one for the crack! :D Excellent documentation - well done. And thank you for sharing.
  2. Pensive

    XLR Input on Audio Shield

    Inititally this is all I would need I think - I want to plugin a Shure SM57 dynamic mic and apply effects and adjust gain Ha! I would potenitally need to do something completely different with it for live gigging - probably a neotrellis and a small LCD display all built into a footpedal I...
  3. Pensive

    XLR Input on Audio Shield

    Hi Gents This project is of particular interest to me - I'd love to tie it up with a Teensy 4.1 into a pedal based unit - question really is how did the prototyping go? Thanks Jon
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    Teensy 4.1 + ILI9341 - Strange tft.writeRect memory pointer blit quirk

    Well I reworked the screen update code so it runs through metro and only updates the screen at 30 fps; It's significantly improved. 95% of the time the image stays where it should be and when it does occur 5% of the time - the jitter is only minor - maybe 2 pixels to the right; It seems to occur...
  5. Pensive

    Teensy 4.1 + ILI9341 - Strange tft.writeRect memory pointer blit quirk

    I'll try this thank you Hmm interesting - im using drawRect and fillRect fairly extensivily without issue. None at all. I am only using the USBHost and the tft library plus the associated touchscreen library. So it could be the touchscreen library - but then I'm not touching the screen at all...
  6. Pensive

    Extra Teensy 4.1s if anyone needs them

    If matthew's supplies run out - I have an 1 x ethernet 4.1 (no headers) I don't need urgently but I'd also be happy to keep hold of.... so if any forum members are desperate in the UK I do have one here - unopened and untouched. But only if Matthew runs out above :) Not hijacking....
  7. Pensive

    Teensy 4.1 + ILI9341 - Strange tft.writeRect memory pointer blit quirk

    Hi all Wondering if there might be any obvious reason for the following: I'm using the t3 tft library #include "SPI.h" #include "ILI9341_t3.h" #include "font_Arial.h" #include <XPT2046_Touchscreen.h> #include <USBHost_t36.h> . . . . // TFT Screen #define TFT_DC 9 #define TFT_CS 10...
  8. Pensive

    FastLED - Sad news

    Oh noooo thats terrible news. FastLED is an excellent library - I've spent many horus playing happily with its excellent features. Very sad to hear of this loss :( :( RIP
  9. Pensive

    Midi 2.0

    I can understand that. MIDI is used in live performance where you literally _cannot_ have errors. It's not ok to fix it and carry on. There's always a risk with standards that if you release a draft too soon the draft spec becomes over-adopted in beta warts and all. That happened with DALI...
  10. Pensive

    Teensy 4.0 First Beta Test

    FastLED won't accept any kind of data pin value. It looks like there needs to be some kind of pin mapping added for this particular board. I'm using the DemoReel100 example. I'm keeping it simple with a 7 LED neopixel jewel running at maximum 5% on the 3.3v output. I'm not sure if that's going...
  11. Pensive

    Teensy 4.0 First Beta Test

    that explains it ;) I'll move on to FastLED for now
  12. Pensive

    Teensy 4.0 First Beta Test

    Similiar Problem with PassThroughUSB - setting USB type to Audio doesn't allow the example to compile at this time.
  13. Pensive

    Teensy 4.0 First Beta Test

    MidiSynthLarge won't compile. If I select plain old Midi under Tool > USB it hangs on the serial output usage. If i select any of the other options with Midi and Serial (including Midix versions) i get "MidiSynthLarge:120: error: 'usbMIDI' was not declared in this scope". So I tried going back...
  14. Pensive

    Teensy 4.0 First Beta Test

    SimpleDrum example works fine but only while the serial monitor is open!!?? I must admit I had trouble getting it to run - had to try quite a few times and can't work out why... edit: So resetting the board doesn't fix it - opening the serial monitor i only get one line - but resetting the...
  15. Pensive

    Teensy 4.0 First Beta Test

    Zelda working perfectly for me now - thanks for the patches Frank; "Global variables use 25280 bytes (9%) of dynamic memory, leaving 236864 bytes for local variables. Maximum is 262144 bytes." Plenty of room left for multiple sound sources in memory - how exciting :)
  16. Pensive

    Teensy 4.0 First Beta Test

    Well don’t I feel late to the party :) Making plans for testing things - nice to see frank is working on the audio library :)
  17. Pensive

    MIDI Sequencer / Sampler

    If I was to offer some advice; Making the sounds is easy. Sequencing and pattern sequencing to a high resolution is full of challenges. Can I suggest for Phase 1 - you make the device send midi events out over USB every time it does _anything_ sound related. And then you can make it respond...
  18. Pensive

    FM synthesis - 808 drumkit

    Wow - it's already done better than I would have hoped to :) ....thank you Byron - it's all MIT license so if you don't mind I'm going to strip out the synth effects and commit them to the audio library once working. Then I'll model them in puredata and maybe experiment with some tweaks and...
  19. Pensive

    Teensy-based modular synth system

    I love it - brilliant project! :) well done
  20. Pensive

    FM synthesis - 808 drumkit

    I know I keep replying to my own thread but all this information will be useful in the long run; Jonathan (author of TS-808 VST) came back to em quickly - he's unfortunately deleted his source files - it's a long since completed project - which is a shame because his compiled VSTs won't run on...
  21. Pensive

    FM synthesis - 808 drumkit

    If the TS-808 detail doesn't come through I'll change direction; Heck I may change direction altogether for a more flexible way forward. Forget specifically emulating an 808 - I'll use the attached PDF as inspiration for more flexible blocks that can be patched to sound like an 808 and a 909...
  22. Pensive

    FM synthesis - 808 drumkit

    Well I've checked the waybackmachine for the author and I've installed the VST as it implies that there are schematics in it - but there aren't. I've also emailed the author asking very nicely if he'd share his work for the Teensy community - so we'll see. IF not - I'll have to plow in all...
  23. Pensive

    FM synthesis - 808 drumkit

    Your project looks great Tom - thanks for the link too - its fascinating how 808 emulation is going from an electronic approximation of theory - to a modular analogue model - and now into a software emulation of a model of an emulation! Simples. I think i'll leave the adjustable curve ADSR bit...
  24. Pensive

    FM synthesis - 808 drumkit

    Not from that project - the author released the compiled VST DLL only unfortunately. His blog is down but I might do some digging and see if I can find him and whether he'd be willing to offer a suitable license on the code to port it to Teensy. I don't suspect the bass kick will be all that...
  25. Pensive

    FM synthesis - 808 drumkit

    also of note: This dude has done an excellent looking tutorial series - unfortunately i'll have to sit through a lot of basics to get the bits of info I'm missing but that's life :) His use of puredata to play with the audio system is a great idea which i'll be adopting...
  26. Pensive

    FM synthesis - 808 drumkit

    And the TS-808 notes which feature an interesting load of information about midi triggers and frequencies etc. Tactile Sounds TS-808 --------------------- The TS-808 is a software emulation (VSTi plugin) of the Roland TR-808. In (re)creating the sounds, I referred to the TR-808 service...
  27. Pensive

    FM synthesis - 808 drumkit

    Here's an image of all the editable parameters for the various sounds:
  28. Pensive

    FM synthesis - 808 drumkit

    Hi Everyone I'm wondering if we have any modular synth gurus who can help me improve the FM synthesis functionalities of the audio system. I bit off a big project which is going to take a lot of chewing - so I'm breaking it down into chunks. Chunk 1) 808 and 909 drum kits. -...
  29. Pensive

    [superceded] SHAPESHIFTER Open Source Drum Machine

    I love the concept of it - It's a perfect demospace for the audio library :) You should do a kickstarter or similiar - I'm sure it would sell if it was supplied with a fully working basic drum machine function pre-loaded. I'd buy one for giggles :) bravo!
  30. Pensive

    Any takers: "nearly all pins" teensy 3.5 connector board

    I'd be interested in one! I need to pick up my beats by teensy project and it's going to get a processor upgrade and hopefully eliminate the mess of wires. This board would achieve that in fine fashion :)
  31. Pensive

    Teensy 3.1 + Audio Board polyphony - how many is too many?

    I’d recommend a teensy 3.2 absolute minimum but for the price - a teensy 3.6 is so much more powerful. I like sledgehammer engineering. Hit it with much more than you need!
  32. Pensive

    Teensy 3.1 + Audio Board polyphony - how many is too many?

    That’s all long since working fine. With a teensy 3.6 you’d be able to use an sdcard at the same time as “music” if by music you mean synth sounds. If by music you mean mp3 decoding....you’ll only be able to do that on a teensy 3.6. 3.2 is only just man enough to play mp3s back ;) although...
  33. Pensive

    64x64 RGB LED matrix

    would be pretty cool to add a touch membrane over it :)
  34. Pensive

    DJ Midi Controller using optical encoder

    For what it's worth - (And I do love the idea of what you're doing - built this back in 2001 - https://hackaday.io/project/4180-digital-vinyl) I think you'd be much better off using control vinyl and a needle - you could fairly easily modify xwax to send midi commands from a raspberry pi if you...
  35. Pensive

    Node Red / Audio System Design Tool Modification

    Awesome work sir. The potential of this project is massive - Scratch for the embedded world. It would be nice to see the slightly more comprehensive timer library implemented which supports oscillation as it would easily cover almost all timer needs. https://playground.arduino.cc/Code/Timer...
  36. Pensive

    Clicking envelope with Audio Library?

    Thank you Paul - a reasonable compromise and it will make the audio library even more accessible.
  37. Pensive

    Clicking envelope with Audio Library?

    All notes? in all scales? That's literally hundreds and hundreds of voices, and you would run out of memory and processing power. That is why. :) Just western music is 12 notes in at least 8 octaves which gets us to 96 voices before we even look at other types of music from other parts of the...
  38. Pensive

    Clicking envelope with Audio Library?

    You need two voices for a monosyth to do that. For a polysynth design it could be done many ways - but you would probably need (Number of Voices +1) and use a stack design so you always have "Number of Voices" available and always be able to cleanly fade out the last voice. It's been done many...
  39. Pensive

    Clicking envelope with Audio Library?

    Chiming in here.......This is a real tough one. My go to solution if I was authoring this would be to design in my own polyphony engine, and use two (or more) voices per instrument (Frank's suggestion basically). I could then adjust the envelopes of each voice according to events. So I could...
  40. Pensive

    Arduino.org

    https://blog.arduino.cc/2017/07/28/a-new-era-for-arduino-begins-today/ The final solution.
  41. Pensive

    C64 Emulation with Teensy 3.6

    Frank this is utterly mental :) I love it ;)
  42. Pensive

    Coming Soon: Teensy-LC (low cost Teensy)

    Apologies if you read my post - it was related to the pca9685 not the TLC5940, therefore irrelevant and now deleted
  43. Pensive

    Who has already got his / her kickstarter teensies? (international shipping)

    received mine a few days ago - had to pay duties :(
  44. Pensive

    Audiolib-MP3

    I see some great applications for this, i'm building a home gym in my garage and i have a dream of responsive WS2812b RGB lighting pumping to the music (webradio would be perfect), all triggered from a presence detector :), one T3.6 could do the lot :) I also want a lifesize cutout of Ben...
  45. Pensive

    Stereo Audio Recorder

    Shows what I know. Input option of ADC1 is right there in the gui. I'll shut up now. Never used it so hadn't noticed it!
  46. Pensive

    Stereo Audio Recorder

    The reason I didn't suggest using the ADCs of the 3.2 was because I don't think it's currently supported by the audio library. AFAIK you need to use mic or line in from the audio board and all the electronics is already done for you. But adding the software side should be relatively easy, just...
  47. Pensive

    Stereo Audio Recorder

    just to clarify - i just weighed them for you: Teensy 3.2 is 2.8g audio board is 5.1g assuming the solder pins, solder and microsd card weigh less than 9g then you're golden
  48. Pensive

    Stereo Audio Recorder

    OK th best tool for the job here is either the Teensy 3.2, or one of the newer 3.5/6 but they are longer and heavier so stick with a 3.2. The Audio board should be able to do this to an SD card no problem at all and it has an SD card slot on board. But it is a bit wider than the teensy 3.2...
  49. Pensive

    Two LEDs from a Single Pin

    brilliant......or.....ws2812b....
  50. Pensive

    Adjusting the Teensy MIDI device name

    well this is exciting, i've held off bothering because i need to re-do it all every time i update :)
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