What is the source of the audio?

I have a project where I have an I2S microphone and an I2S amplifier. Between them is a storage area on a flash chip. Never mind the microphone part for now, so looking just at playback, I have a "recorder" task and an "amplifier" task. The amplifier task is higher ...

You may be losing (blocks of) samples when recording because during erases/writes to the flash all other tasks and all non-IRAM ISRs are halted.


O.K. thanks! I figured there might be an issue reading from a flash that also is the execution space of other processes.

I pre-erase the partition ...

I have a program that uses an I2S microphone, an I2S amplifier, and a storage medium to hold what's being recorded.

I have a custom board into which I plug a Waveshare esp32-s3 pico board. My custom board has an 8MB flash chip on it. I use stacking headers on the custom board so that I can attach a ...

To get rid of the escape characters, as you said, you could use a color enabled terminal.

If you can't use a color enabled terminal, then, I believe the setting CONFIG_LOG_COLORS in sdkconfig should not be set.

At least, that got rid of them for me.

I came here to ask about using I2S in full duplex vs simplex mode, and it seems that I'm not alone in my confusion.

My project is to record from a INMP441 microphone directly to an external 8M flash chip... raw writes, no file system. Then, playback the recorded audio to a MAX98357A amplifier.

I'm ...

I did not use esp_timer_get_time() because it can be really 'slow', like 1-2us. esp_cpu_get_cycle_count() executes in a single CPU clock cycle.


Thank you for your insight. I took a look at esp_cpu_get_cycle_count(); it looks like it returns a uint32, and I'm not even sure of the units. In any ...

FreeRTOS provides the function vTaskGetRunTimeStats(char * pBuffer).

On my ESP32-S3 it prints a report that looks like...


cli_proc 13831<1%
cli@tty0 243301<1%
IDLE 5646366198%
IDLE 5596399097%
Tmr Svc 10289<1%
ipc1 9586061%
blinky 12124<1%
ipc0 9439331%
esp_timer 24<1%


This is only after a ...

Hello,

I'm new to the ESP32-S3, but have had lots of experience with FreeRTOS. I want to use the capability to hook the scheduler in order to accumulate run times of tasks per core. I have done this before on another platform, but can't figure out what I'm missing in the ESP-IDF V5.1.1 that makes ...