i finally fully assembled my saber!!! its turned out great...but

on my green program especially you can hear a certain whine to the sound

https://imgur.com/gallery/M3Atydr

i have clash set to 1023,1023,1023 or "white" and the clash sounds start to crackle and static after about 1/3 discharge

without the blade everything sounds great, i've tried reformatting the SD card

its my first build, so i had my share of troubles along the way...could it be the amp?

am i expecting too much from the battery? or should i rewire it?