Skip to main content

All Questions

Tagged with
0 votes
0 answers
59 views

Why does ESP32-LyraT-Mini V1.2 use an external ADC for the microphone when ADC is already available in Audio Codec?

Kindly refer to ES8311 audio codec datasheet and ESP32-LyraT-Mini V1.2 Schematic.. In the Lyrat mini board, an external ADC ES7243 is used to sample the audio signal from the microphone but an equally ...
hrithik singla's user avatar
0 votes
0 answers
72 views

Why does the ES8374 have 5 pins to receive input from a microphone?

I am using a ES8374 codec for an audio application. I am not able to make out how to connect my analog condenser mic (which has two pins) to the ES8374 mic pins. (Refer to pictures from the datasheet) ...
hrithik singla's user avatar
2 votes
1 answer
90 views

Grounded ADC pins on the CS4272-CZZR producing horrible noise?

I am currently busy with an audio processing project that requires 4 output channels. I have a Nucleo F303RE running some digital filtering on audio data, which is being read by one of the two CS4272s ...
Bennaman's user avatar
0 votes
2 answers
250 views

Loopback Latency of an Audio CODEC?

I'm thinking way ahead about a possible future project which will contain, among many other things, a "DIY hearing aid" of sorts. Microphones feeding earbuds with some DSP in between, all ...
AaronD's user avatar
  • 5,676
1 vote
1 answer
229 views

Please help me identify this noise on my ADC

I have a CS4270 codec hooked up to a Raspberry Pi more or less according to the "recommended layout" in the datasheet (P7), shown below. This device sinks power from three different places (VA = power ...
Ian Reynolds's user avatar