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      Thanks Paul! I've been a bit lazy in my updates here, but unfortunately there's not a lot to report on the car. The last 2 years at Bonneville have both been washed out and the nature of these events means you really only get a window of few...
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      tschrama reacted to Pio's post in the thread 1830 Hz noise when there is no input with Like Like.
      I have encountered this issue, it's not really Teensy related, but the SGTL5000 codec chip. I was able to narrow it down to a resonance happening due to impedance of the capacitor combo and the SGTL5000's analog power supply pin resulting in a...
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      Article posted on the website: https://www.pjrc.com/fadec-turbine-controller/
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      tschrama reacted to jvphotog's post in the thread Stereo guitar/bass cabinet emulation with Like Like.
      Been playing around a bit more. I got the high/lowpass filter and peaking filters working. I cant for the life of me figure out how to map the controls from "0-100" to what they actually are. I think it might be in the bundle.js file, but thats...
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      tschrama reacted to jvphotog's post in the thread Stereo guitar/bass cabinet emulation with Like Like.
      Also, how do you get away with not using any regular audio memory? I thought you had to allocate a tiny bit even if using F32... but this doesnt
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      Not necessarily, use a Cauer (elliptical) filter, rather than cascading 2nd order Butterworth stages. You can get much steeper filter skirts this way, although phase distortion is higher and there is pass-band ripple. This is 6th order Cauer...
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      tschrama reacted to M.K.'s post in the thread Any Teensy 3.6s out there? with Like Like.
      Thanks Paul! If anything, cosmetic damage sounds like a plus to me. Please let me know how I could order... like, could I place an order for a 4.1, and just write a comment asking for the 3.6? For what it's worth, this was the project:
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      tschrama reacted to h4yn0nnym0u5e's post in the thread Bug in AudioOutputTDM2 with Like Like.
      Just found this one, after a lot of head-scratching. I've done PR#472 for it. The copy from the 16 incoming audio blocks to the output buffer was copying twice as much as it should have, so the second half (presumably garbage) was overwriting...
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      I repeated the test with this code. void setup() { pinMode(13, OUTPUT); CCM_CLPCR &= ~CCM_CLPCR_ARM_CLK_DIS_ON_LPM; } void loop() { digitalToggleFast(13); asm("wfi"); } Power supply display now shows 68 mA. Some of that current is the...
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      @alfa66 I've experimented with one of those boards from ali express, they work fine with Teensy. I captured a few details of the connections on my board - it look exactly the same as your board. I have it running with the 6 ins and 8 out with...
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      tschrama reacted to Pio's post in the thread Stereo guitar/bass cabinet emulation with Like Like.
      I played a bit with the Reaper's JS plugin engine. The new Amp Modeler example will include a JS controller plugin, doing pretty much the same as the html+webMDI, but with automation, MIDI clock sync and all the audio tools a DAW provides.
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      tschrama reacted to PaulStoffregen's post in the thread Triggered I2S with Like Like.
      I don't understand "continuous recording sample by sample and transfer them to some buffer when triggered". Trying to answer your questions, but without some context I just don't know what you're asking by these words. In particular, a thing...
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      tschrama reacted to PaulStoffregen's post in the thread Triggered I2S with Like Like.
      This part of your goal simply is not realistic. These I2S audio parts require a continuous stream of audio data at a fixed sample rate. You can choose a different sample rate (within a range the hardware supports) and you can craft very low...
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      Just wanted to send a very heartfelt thank you to Paul for building the Teensy 4.1 microcontroller board. The context of this is my team just had our first successful test flight of our 4 tonne drone for fighting forest fires. The entire...
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      tschrama reacted to Pio's post in the thread Stereo guitar/bass cabinet emulation with Like Like.
      Amp Modeler example project is available here: https://github.com/hexeguitar/hexefx_audiolib_F32_examples/tree/main/NeuralAmpModeler For now PlarformIO only.
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      I just finnished a school assignment in a Human-Computer Interaction course, where I am looking at new ways to make instrument practice more engaging. I made a loop pedal that: Generates random rythms based on pre-made distribution templates...
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      Teensy is at NAMM again this year in the form of the Aviate Audio Multiverse. New feature this year is IR support in the pedalboard designer, which we can now use to create our own guitar cab IR audio effects. Here is the source code to my...
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      Here is a new quick semi-jam using this synth project and some other Teensy based stuff. Cheers!
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      Hi! I made another Teensy-based polysynth using parts from other discarded projects. It is the usual subtractive setup but I am trying to make it more flexible in terms of modulation to create more variety than my previous attempts. I would like...
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      tschrama replied to the thread Acoustic Localization.
      There is no need for nanosecond resolution. The PPS from a GPS receiver will provide 10usec resolution for annabsolute time stamp. This is enough to triangulate the sound source with multiple mics. Any wheater proof mic with a wind ‘hat’ will do...
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      tschrama reacted to chris.nz's post in the thread Uncanny Eyes is getting expensive with Like Like.
      I've been continuing to hack away at the Uncanny/M4 Eyes code and thought I'd post a bit of an update on where I'm at: I've managed to merge in a lot of the M4 codebase, as well as make other improvements, so now my Teensy code supports the...
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      tschrama reacted to chris.nz's post in the thread Uncanny Eyes is getting expensive with Like Like.
      It's still very much a work-in-progress, but I've got a proof-of-concept working that demonstrates hot-swapping eyes at runtime: There's still lots I need to do before this is genuinely useable, though that's mostly to do with configuring and...
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      tschrama reacted to Pio's post in the thread Stereo guitar/bass cabinet emulation with Like Like.
      Thanks! Things got a bit more exciting - got the RTNeural library working on the Tennsy4.1. CPU load is around 45%, with the tone stack and stereo IR speaker sim tops at about 60%. Still plenty for reverb, delay and a few other effects.
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      tschrama reacted to Pio's post in the thread Stereo guitar/bass cabinet emulation with Like Like.
      Here is a next component for my audio effect library for Teensy4: Stereo guitar/bass cabinet emulation based on Uniformly-Partitioned Convolution Filter by Brian Millier. A PlatformIO and ArduinoIDE projects are available in the examples repo...
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      tschrama reacted to PaulStoffregen's post in the thread Low level I2S? with Like Like.
      The USB audio (probably) only works with the default block size. All the others should adapt.
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      tschrama reacted to wareya's post in the thread Low level I2S? with Like Like.
      Thanks! I've solved it, so I'll note the two things that kept me from figuring this out until now: 1) back when I originally wrote this, I was purely using USB audio; when I changed the relevant define in the header, it broke, since the USB...
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      Here's some updates: I made a driver for the W5500 that plugs into QNEthernet. You can enable it in the new qnethernet_opts.h file (after overwriting using the ZIP file about to be mentioned). I haven't put it in the latest `master`, but you can...
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      Hi all I just submitted the following pull requests and wanted to get your take on them. https://github.com/PaulStoffregen/cores/pull/732 https://github.com/PaulStoffregen/Audio/pull/470 These two pull requests do the following: Allows for...
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      pictures, or it didnt happen ;-)
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      tschrama reacted to guitinker's post in the thread USB Stratocaster Teensy 4.0 inside with Like Like.
      I just debuted a project last night that I’ve been refining for years. It’s essentially an audio shield for Teensy 4.0 with some special features targeting the Fender Stratocaster electric guitar. It uses the SGTL5000 stereo codec to capture the...
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      I'm preparing a v0.26.0 release shortly. Would anyone here be willing to get the latest code and try the new Mbed TLS feature out? I'd love it if someone other than me went through the instructions to verify that it works.
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      Yep, that's fixed in the latest push. It's currently at v0.26.0-snapshot and there's a good chance I'll make a new release soon. I had added my own const IPAddress operators for comparison operations because previous Teensyduinos didn't have the...
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      I just released v0.24.0. The changes: ## [0.24.0] ### Added * The new `QNETHERNET_MEMORY_IN_RAM1` configuration macro indicates that lwIP-declared memory should go into RAM1. * New `EthernetFrameClass::receiveQueueSize()` function. * New...
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      I just released v0.21.0. The changes: ### Added * Added `EthernetClass::linkIsCrossover()` for checking if a crossover cable is detected. * Added entropy-based random number functions, `entropy_random()` and `entropy_random_range(range)`...
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      For real time streaming (over USB or any other digital channel), sample accurate transfer depends upon transmitter and receiver sharing the same sample rate clock. We don't get synchronous sample rate clock with USB audio (the spec does have an...
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      In theory, at least 8 channels should be achievable. There are threads at https://forum.pjrc.com/index.php?threads/6-channel-line-level-audio-interface-with-teensy-4-1.72887/ and...
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      tschrama reacted to KurtE's post in the thread Testing DMA on T4.1 with Like Like.
      Yes, it is in the reference manual... It takes a little work to find all of the information. So once Paul starts a Beta of a new board I will typically generate something like an excel document with information. For example on the T4.1 I have...
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