FFT Audio Spectrum Analyser PIC32 QVGA LCD

My implementation of fix_fft.c a fixed point Fast Fourier Transform on the Chipkit Max32/Uno32 PIC32 with a SSD1289 LCD.

Running at 2048 dots and 4x oversampling.

PIC32 (Arduino-like) C++ source code : http://www.chipkit.org/forum/viewtopic.php?f=15&t=512&p=2633

fix_fft.c fixed point arthmetic function written by Tom Roberts (1989).

Category:

Science & Technology

Tags:

• PIC32
• Audio
• Spectrum
• Analyser
• FFT
• QVGA
• LCD
• Fast
• Fourier
• Transform
• Sampling
• ADC
• Interrupt
• Sound
• Arduino

[YO2LDK]

hi, very nice project! can be made it to display freq between 250Hz and 4 kHz?

[serveurperso]

@YO2LDK Yes with a higher oversampling value (8x for 0 to 6.25KHz and a tuned display window for 0,25 to 4khz)

[laelfrog]

Sweet!