All Questions
12
questions
1
vote
2
answers
136
views
ICS-43434 microphone esp32 wroom 32-d
I've been trying to read the ICS-43434 microphone using esp32 wroom 32-d but I'm getting negative values that stay in more or less the same range, despite varying noise levels. What am I doing wrong? ...
- 11
0
votes
0
answers
81
views
PCM to dbspl conversion in esp-idf
using i2s interface of esp32-wroom-32 i am getting PCM data from PDM micro-phone. how can i measure acoustic sound pressure level?
below is datasheet sheet of micro-phone.
from 16-bit array how can i ...
- 61
0
votes
0
answers
221
views
ESP32 I2S with a MAX98357
I have hooked up an ESP32-WROOM to a MAX98357 I2S Amp. I'm using the ESP32-audioI2S library playing from an SD card. ESP is USB powered while the amp is powered from a bench power supply. I'm using a ...
- 167
0
votes
1
answer
427
views
I2S DAC UDA1334A module distortion under load
I am trying to use a UDA1334A I2S DAC module (pictured below on the right) with an ESP32-S3.
I connected everything as described in the documentation by Adafruit (https://learn.adafruit.com/adafruit-...
- 103
0
votes
2
answers
2k
views
Record audio with digital I2S MEMS microphone and store audio as wav file on PC
I would like to use a digital I2S microphone to record audio and store it as wav on a PC, preferably over serial connection. I have tried this with the boards ESP32 dev kit v1, MKR Wifi 1010 and ...
- 1
2
votes
1
answer
1k
views
How to remove INMP441 MEMS microphone low-frequency noise
I have code that allows me to record I2S audio from the INMP441 MEMS microphone module using an ESP32. The data is read from the data out pin of the device.
When I take the Fourier transform of this ...
- 66
1
vote
0
answers
108
views
Can I transmit audio sampled with I2S driver from ESP32 using Si24R1 (Chinese clone of nRF24L01)?
I'm trying to transmit audio via nRF24 with an ESP32 development board using a driver library from nopnop2002. I'm using the i2s-adc esp-idf lib functions to get data from an analog microphone and I ...
- 67
0
votes
1
answer
2k
views
Unable to get any kind of audio from I2S INMP441 omnidirectional microphone on ESP32 devboard
I am trying to get an I2S INMP441 omnidirectional microphone module to interface with an ESP32 devboard. I have been unable to get any kind of information from it. I have tried multiple ESP32s and ...
- 3
1
vote
1
answer
348
views
Delay in I2S audio from SD card
This question was already asked on specific arduino forum but I didnt recieve any answers and views were very limited hence I am posting here for better reach.
I am trying to play wav file saved in SD ...
- 525
1
vote
1
answer
812
views
Cause of I2S microphone not working
I am attempting to connect a DMM-4026-B-I2S-EB-R to an ESP32-S2-DevKitC.
I am writing this code in the Arduino IDE. It is based on the code from this article.
I believe my code works; I included it ...
- 13
1
vote
0
answers
3k
views
ESP32 High Sample Rate I2S
Recently, I've been working on a project that involves receiving a high sample rate I2S signal and writing it to an SD card with an ESP32. At the moment, however, I believe I'm struggling to even ...
- 51
1
vote
2
answers
573
views
I2S voltage shifters needed?
I am designing the schematics for my new PCB and I need to output some audio signals (totally new to this).
I am using an ESP32-SOLO-1 as MCU and the TFA9879HN as audio driver. The TFA9879HN is ...
- 13