Help on spectrum analyzer port for esp32

HI again, i ported this

" GitHub - s-marley/ESP32_FFT_VU: A spectrum analyzer VU meter for the ESP32 and a FastLED matrix"
for smartMatrix by including neomatrix_config.h and made some changes to sketch. now display is just white not showing actual thing. i uploaded the code to github if anyone want to have a look on it.
GitHub - alpha815/esp32-smartmatrix-spectrum-analyzer: this is Arduino sketch for esp32 spectrum analyzer
BTW i am using smartmatrix_gfx by marcmerlin
GitHub - marcmerlin/SmartMatrix_GFX: SmartMatrix: Allow using Adafruit::GFX as well as FastLED_NeoMatrix code with SmartMatrix backend,
any help will be highly appreciated.

A post was merged into an existing topic: Spectrum analyzer for esp32