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Still 37-38 ms here. Not much beats that except Google (11 ms).

- Wes, W5ZZO

Getting 36 ms ping here in Texas (Houston area).

- Wes, W5ZZO

A Teensy 4.1/Audio Shield project that has long been in the works is expected to progress beyond the handful stage around February. It's a "Software Defined Transceiver" (Amateur Radio). The actors...

I've been using IDE 2.0.x since it's RC days, and I no longer use IDE 1.0.
I was just experimenting with the (on my computer) "COM4" and the "COM4 Serial" connections.
When I connect using the...

They're there. Perhaps your installation went awry?
29855

- Wes, W5ZZO

I posted a finding on the Serial Monitor on the Arduino forums, since I could only make my proof work with using COM4 (not teensy port)....

It appears to me there is some sort of buffering within the serial monitor. Data from prior "sessions" is stored somewhere, and will be presented along with any new serial data sent. However, the...

That's it. I had 1.57.1 installed, but the version for the teensy monitor was still 1.57.0, why IDK. The file attachment fixed the issue.

- Wes

Using the code I posted below for a minimal example, with my Serial Monitor (on the Teensy 4.1 port) after exercising a reset the SM gets into a funky state where it only sends every other line to...

I switched my connection to the teensypins, opened the Serial Monitor and made many uploads w/o the menu greying out.
I suppose it would be nice if some developer at Arduino would fix this, but so...

I should not be happy, but at least now I know I am not seeing ghosts by myself.
I also learned a lot about what the teensy ports are and "what's under the hood" that I did not know.

- Wes

I have seen and reported the lazy serial data display in IDE 2.0.x, iirc it has been there since the RC versions. Data appears to be captured, but will not display until you use the scroll-wheel in...

The effort is incomplete, and most of what is in here has been done over and over, so here are the project files, all zipped up.
Thanks for looking.

- Wes, W5ZZO

Yes, it's a larger size program, tons of audio objects.

Memory Usage on Teensy 4.1:
FLASH: code:84068, data:33928, headers:8976 free for files:7999492
RAM1: variables:65952, code:80520,...

I have also determined (as best I can) that this problem DOES NOT happen when the Serial Monitor window is closed.
I don't know whether the IDE or the Teensyloader is not working right, but as it...

The logs are in user/username/appdata/roaming/ArduinoIDE/
It seems to do a daily delete, at least when you use it every day.
I went ahead and zipped it so it is now only 13K in size.

- Wes,...

It happened again, and I have a log. It is around 190KB though.
I don't see any way to attach it, should I just paste it into a message?

- Wes, W5ZZO

Be careful that your issue isn't audio hardware. I had my stuff plugged into an external USB adapter, and the fade (similar to what you are doing) did not work, simply because the jack I plugged into...

Windows 10 straight up.
I got some advice yesterday over on the Arduino forum on how to find the log file from the IDE..
As usual, since I learned that I haven't had a failure yet. I hate these...

This problem was not there in 2.0.1 and prior, but what happens is after SOME uploads to my Teensy 4.1, the "Upload" menu-item gets greyed out (and requires a program restart to clear it up). This...

OK. I didn't notice it until you described it. I will be sure to do that if it happens again.


- Wes, W5ZZO

So, the link being promoted finally shows up.
Gentlemen, you are being played.

I would start with:


AudioNoInterrupts();
fade1.fadeOut(1000); //uint32_t milliseconds
fade2.fadeIn(1000);
AudioInterrupts();


that assumes some things I don't know about your...

Thanks, Mark. That looks promising.
Maybe I'll get a lot of work done on this today, because the bands are (relatively) lousy.

- Wes, W5ZZO

In order to more easily manipulate multiple channels in my synthesizer project, I coded this:


AudioSynthWaveformModulated *WaveformMod[MAX_CHANNELS]={&waveformMod1, &waveformMod2, &waveformMod3,...

I am making yet another synthesizer, and so far so good. I have 16 waveforms into 4+1 mixers, and (as warned in the documentation) when I play many notes at once the sound becomes distorted.
I made...

Wow. Two VERY informative replies. I am thankful to you both.
My most immediate worry was how many polyphonic notes to plan for. Following my fellow ham Mark's work, I will allocate 16 and plan to...

I'm building yet another silly synthesizer, and off to a good start... it accepts musical keystrokes and makes sounds (and makes them disappear when a key is released).
I have some keyboard scanning...

In case anyone searches this out someday, here are my findings:
1) Using INPUT_PULLUP is too weak to power two diodes at once (multiple rows in the same column at the same time fail). I switched to...

LOL, I concede!

- Wes

Thanks for the response.
After I made that post, I "discovered" delayMicroseconds(). I tested my code and it works with a delay of 2us, but not at 1us.
For the time being that helps some, as it is...

I have a (partially) half-baked idea to make some sort of YASS (Yet Another Silly Synthesizer). I salvaged some matrix musical keypads and reverse engineered their layout.
They are the expected...

I keep a bookmark for this forum and visit often, usually keeping my mouth shut because I have more to learn than contribute.
Most support forums would have something like a PJRC logo in the...

Thanks for pointing those links out. I searched for some info b4 I asked, but didn't see those... probably lousy search terms on my behalf.
I got the explanation I needed to determine that I was on...

I have used a Teensy 4.1 from a 5V regulated supply, and taken a small amount of power from the 3.3V pin (near the 5V in) for a voltage divider circuit (so that I had the same reference voltage that...

1.58 Beta #2 has no issues on anything I am working on, (using 2.0.0 now) although that is not exhaustive regression analysis.
I am trying to understand why, when I do a verify/compile the...

Thanks for the tip.
I don't have a mission-critical need for bit-band, but I combed through the INXRT 1060 datasheet, and while it has the bit alias addresses marked reserved, I was still unsure.
I...

TY. That may save me a lot of frustration.

From my limited research, and the datasheet, the bit-banding in M3 and M4 is not implemented in the M7 in Teensy 4.1?
A knowledgeable response, even if boolean, would be appreciated.

Thanks,

...