Open stanleyseow opened 2 years ago
Firstly, great spectrum analyzer project !!!!
I did a circuit with the 2 x 10K and 2 x 100K to bais the voltage to 1.6V Image here https://flic.kr/p/2ndwoTo
When I ran the freq sweep, I could not get all the freq, only a few freq responded like 4KHz to 10KHz , not the entire spectrum ...
Is it bcos my input is headphone out instead of line-out ?? I tried to max out the headphone volume, same results..
Any pointers on how to troubleshoot this ?
Thanks
My setup : https://my.cytron.io/p-nodemcu-esp32 WS2812 8x32
I have done something similar for the Teensy 3.2 + Audio Board but this one would be a lower cost alternatives ...
Firstly, great spectrum analyzer project !!!!
I did a circuit with the 2 x 10K and 2 x 100K to bais the voltage to 1.6V Image here https://flic.kr/p/2ndwoTo
When I ran the freq sweep, I could not get all the freq, only a few freq responded like 4KHz to 10KHz , not the entire spectrum ...
Is it bcos my input is headphone out instead of line-out ?? I tried to max out the headphone volume, same results..
Any pointers on how to troubleshoot this ?
Thanks
My setup : https://my.cytron.io/p-nodemcu-esp32 WS2812 8x32
I have done something similar for the Teensy 3.2 + Audio Board but this one would be a lower cost alternatives ...