#if HARDWARE_MULTIPLY
void perform_fft(signed 18 *pcm_audio);
void perform_ifft(signed 18 *modified_audio /*,unsigned 6 *ifft_info*/);
#else
void perform_fft(signed 16 *pcm_audio);
void perform_ifft(signed 16 *modified_audio /*,unsigned 6 *ifft_info*/);
#endif
void equalize_audio(unsigned 4 *eq_level, unsigned 7 *fft_info);