Thanks! I have not tried eagle, yet. I downloaded kicad but could not figure how where to begin... I am sure CAD, like all other tech things, is something we talk about like there's a universal workflow, but I bet every...
I had an analog drum synth with a Teensy 4 delivering metal noise for cymbal and high hat sounds. It’s an insultingly simple task for the Teensy 4 I admit (trivial to add knobs and midi), but MQS works great for that...
It's a new year, and time to try new things.
If I want to get a PCB made, maybe a very small batch, what files do I need to send? Is it just a PDF? How good do they have to be? To me, this is one of those things...
As Jacquot noted in his write-up, this is pretty much an "MVC" application, so I de-coupled the user interface, the sound generators, and the sequencer. In that state, the voice.cpp file exports all the percussion synth...
I am interested in simulating the resonant filters.
I had the old Arturia Storm software and they did a decent job with ringing filter percussion.
I'm going to assume the existing Teensy Audio Library filters...
I have a lot of wav files on my sd card.
When my "drum machine" loads a "kit" of samples (into 8+ voice playback buffers), it takes a whole lot of milliseconds to load in the sounds.
It's so slow, I could not switch...
I ended up creating a number of EXTMEM blocks for my drum machine. Dynamic allocation isn't needed.
I can load in gobs of data now.
I can reload new samples into each voice of my sample player as many times as I...
? Has this issue been resolved? I am experiencing the above mentioned freeverb buzzing and crackling noises. In my design, the reverb recovery stage is after all my audio gates. I'll add more gates if that's what's...
Hellos,
JavaScript is still being used for some "IoT" embedded products, presumably because "JavaScript is the language of the Internet".
This implies the reason I want to use JavaScript is because I want web...
BGJ,
I was able to un-mothball the TeensyBoom project and run it on Teensy 4-4.1.
I really like your drum sounds, they evoke Eno-like electronic percussion but they're also quite unique.
The odd thing, to me, is...
I'm running into the same old problem I always run into when I want to combine web tech with embedded tech. We have JSON support in C++, but I can't do the essential things I really want to do with JSON: gimme a...
Thanks, that is what I am looking for, are there any example sketches for this allocation? Or is it just as simple as extmem_malloc() in the place of malloc()?
Happy xmas
Ahhh okay! Starting to make sense. Wish I could add a PSRAM chip to the Teensy Audio Shield, but I guess I can add a Teensy Audio Shield to a Teensy 4.1 with the ram chips soldered in.
Hi,
Are there updates on this? At this time, can I dynamically allocate memory in the PSRAM space?
Fortunately the chips are cheap, but I was hoping I could use them.
Thanks,
Ben
??? Oh dear.
If I am loading SD files into memory, some of which may be > 80K and want to be able unload/load a different file, what can I do? Do folks write their own heap management code, or do folks malloc()...
Hello,
Let’s call what I am working on a “drum machine”.
My drum machine needs to allow the user to select a short 16 bit mono pcm wav file from a library of sounds on the SD card. If possible I would like to load the...
Software developer for 25+ years. Electronic music enthusiast. JavaScript "expert". Learned HyperCard on an upgraded Mac 512. Learned C/C++ on the Macintosh II. Learned JavaScript to avoid starvation.
Started single-board computing on the Tessel (1). Then tried Adafruit wearables, then moved to the Arduino Uno, and now very happy with the power of the Teensy platform.
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