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Is there anyone has experience to connect CM6206 with Teensy 4.1? I wonder if it's possible to send 5 channels from the SD card and teensy 4.1 to CM6206 via USB host (since CM6206 doesn't support I2S)? so the CM6206 can output the 5-channels file in the SD card properly? thanks!

Hi @alex6679 I've been using this branch of yours for the testing. I was using AudioOutputTDM (see the .ino code below) as I told you in private conversation, should I try AudioOutputI2S? or may I know the full code? thank you so much. @electricat I just realized you weren't on CS42448, is it...

Sorry I thought we were on the same page, please let me clarify it again: what I have tested with @alex6679 was a 6i8o CS42448 board purchased on Taobao (same as Alibaba). 🙂 1. 8 outputs (data from SD card) 2. Stereo outputs via USB 3. Stereo outputs via USB for laser galvos 4. 8 outputs via...

good to hear that! but I did the test with @alex6679 via video chat step by step with his code so it’s very unlikely I did something wrong there. And back then it was not only not working on my MacBook Pro but also not on another Mac Book Pro of my friends, that’s why I thought it’s helpless...

Hi hi this is my Mac spec i posted. @electricat sorry did you mean you can find the Teensy and CS42448 board as audio device in DAW and can output 8 channels in real-time? or just record the outputs from teensy and CS42448 as standalone SD player? are you also on intel chip? thanks.

＠alex6679 @h4yn0nnym0u5e long time no see, good to see you are still here! for the mac test machine i'd suggest new mini mac m4 it only costs 610 USD dollars but the performance is totally worthy... @wll3mx thanks for the help!

Just curious has anyone exported c++ code by RNBO in max/msp and can be used by teensy? seems there’s no informations could be found online so far.

Hi all and @alex6679 Thanks for all the helps again, I have tested my teensy 4.1 and CS42448 on a PC and its working all great, now back to Mac and capture my USB packets. I have found a way to capture USB packets with Wireshark on Mac, hope the attached file helps, let me know if you need a...

Hummm if there's any "conventional" test code or other test method for USB audio multichannel I can test with in any existed library or example code?

Hey btw, I think the user who succeeded on running @alex6679's code with stereo out and UAC2 was @toyosm! (or both Toyosm and AntiLoop).

Ah you are right, yes it’s maybe not so relevant and better to disconnect the cs42448 during USB wise testing. It’s just I can only testify it with the board without you.

@AntiLoop Thanks for the idea, I will test it later today. Actually I have been testing with 3.3V power supply not 5V, because I only know the two 2.2k pull up resistor works with the 3.3V, maybe that’s an issue too? And do you know what are the correct pull-up resistors for the 5V?

Big thanks to @alex6679 for all the helps, we have met twice for last two saturdays, unfortunately we still could not spot the reason why my Mac could not work with teensy 4.1 for USB multi-channels. In the beginning I was on OS Ventura (13.x.x) and then updated to Sequoia (15.0.1). I am...

Hi @h4yn0nnym0u5e, thank you for answering some basic questions from me in private conversation, as you suggested some of them should go to public. May I know is your PCM library support USB audio multichannel? I am not experienced enough to distinguish if USBoct and TDM inputs are both for...

Hi @alex6679 Do you mean just to cut the outputs to two? I did and I still get the same repeated cut-off tone when I send a sine wave from Mac to Teensy. #include <Audio.h> #include <Wire.h> #include <SPI.h> #include <SD.h> #include <SerialFlash.h> // GUItool: begin automatically generated...

@AntiLoop It seems you want to send 8 sines from CS42448 to the PC, I have uploaded the code successfully and I have received the correct signal in Mac, just with the same repeated cut-off (regular repeating on and off). But what I want now is AudioInputUSBOct not AudioOutputUSBOct. However...

sorry I re-edited my question. Ok so if this works for you then it must be the configuration settings? Did you check my video? can you guess what could be the cause? I think the code I was using the example test code which Alex mentioned in #129. Anyway I think this is all goood news if you...

Hey I couldn't post pic in private conversation with @alex6679 (i don't want to bother people with low level debugging), but I am having this in plotter, however, as said, it only lasts for 0.5 second and then it goes back to 0 when the AUDIO_SUBSLOT_SIZE = 2. I recorded a film of it and i put...

Hello, I have modify the contents under the teensyduino app according to the instruction in the readme file in the repo. (I am on Mac and I didn't find suitable old teensyduino installer so I am running everything under the standalone teensyduino app.) I also did this all: - Select your Teensy...

Hi, I have been making the same thing, programmable laser with audio interface, just I am mostly based on Max, is this thread still working?

It got configured well after I added two 2.2k pull-up resistors to 3.3V as @h4yn0nnym0u52 suggested here. I will go to the related thread for the rest of the work, sorry for the noise & thanks for all the helps!

I think all answers should be appreciated, one of the greatest thing about open source is the collective troubleshooting, but of course I will try to reduce my newbie attempts here as much as i can.... its a great forum! Ok, so I think I've tried both ways and they all didn't work, and since I...

Hi Paul, thank you to clarify this! I took exactly the same code as you posted in the earlier post in this thread, just I didn't wire the AD0 and AD1 to GND, should I solder them manually? I didn't because I didn't see you solder or wire the AD0 and AD1 to GND on the CS42448 board in the...

Hey! so sorry I found this thread is more related to my question but i couldn't delete my post in another thread. (I also just realized I post it to a wrong page). I did some reading and I think it's I didn't wiring the address. (yes I found I swapped the SDA and SCL on Teensy but it still...

tried to parallel two 9.7k still without a success, not sure what have I missed.

Now I don't have 4.7k or 3.3k at my hand, tried 1k, also didn't work.... but why I don't see people use pull-up resistor here and it still works? I thought there's inbuilt pull-up resistors.

Hi @BriComp, thanks, I've put two 9.7k between SCL/3.3V, SDA/3.3V (I don't have 4.7k atm), still not working, any idea why?

Hi, @houtson, I've tried to connect to the CS42448 board with and without pull-up resistors (two 9.7k ohm, I don't have 4.7k atm) between 3.3v and SDA, 3.3V and SCL, still couldn't talk to the CS42448, any idea why? thank you so much.

Hello! sorry for the too beginner question, I am connecting one CS42448 board and teensy 4.1 according to here, but the configuration is always failed, should I add pull-up circuit as you did? I checked my wiring several times and it should be all correct.