All Questions
6
questions
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
1
vote
0
answers
74
views
AKM DAC problem
I’ve been developing the basis for a granular synth and general digital development platform for the past few months. I was using STM32 chips at first, but I’ve switched to bare metal Raspberry Pi for ...
- 33
0
votes
0
answers
568
views
WM8960 on Pi detected but not working
I am trying to create custom board with WM8960 IC with Raspberry Pi. I am able to use Wolfson drivers for pi to detect the IC via I2C but I am not able to play or record any audio. This is the ...
- 19
0
votes
1
answer
81
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Synchronizing an oscillator signal and a single wire signal
On some 32bit MCUs(PIC32MX, STM32F4), those SPI pins can read a continuous signal such as I2S/PCM.
So I thought to read a single-wire signal that has MHz fixed frequency as SPI.
First, I made a ...
- 1
1
vote
3
answers
4k
views
I2S TDM channels maximum bandwidth
Does I2S support sending multiple mic (around 20) channel data? If no, what is the limiting factor in supporting multiple mics?
Also, is there any way to send multiple channel data from different ...
- 21
0
votes
1
answer
552
views
CS4234 has two I2S data I/O lines?
I have an application where I'll be sending audio data to a codec. The CS4234 fits my needs very well, although with other I2S codecs, there have only been one data in line for the communication. The ...
- 3,598