Search found 3 matches

by tom303
Tue May 28, 2019 7:49 am
Forum: ESP32 Arduino
Topic: Best solution handling ADC-DAC for simple audio effects processor
Replies: 3
Views: 7724

Re: Best solution handling ADC-DAC for simple audio effects processor

I have just found out that while adc1_get_raw() takes 40µs, analogRead() only takes 10µs. So my effects processor is now working. :)

But maybe there's overall a better solution for what I'm trying to do.

best
by tom303
Mon May 27, 2019 8:10 pm
Forum: ESP32 Arduino
Topic: Best solution handling ADC-DAC for simple audio effects processor
Replies: 3
Views: 7724

Best solution handling ADC-DAC for simple audio effects processor

Hi! I'm trying to add a simple audio effects processor to my project. (mono in - stereo out - chorus effect) Audio input via the onboard 12bit ADC, output via a stereo 12bit SPI DAC. Sampling rate needs to be at least 32kHz, so there's about 31µs time for AD-conversion, processing and DA conversion....