Скачать или смотреть Motor growl

trying to figure out where the "growl" is coming from. someone suggested maybe pids but i don't know. new motors and probs. no vibrations according to the motors tab in beta flight (RMS 0.002-0.006 with traces pretty much flat). my fpv camera is clean, but the gopro 4 has jelly in it. Gopro is hard mounted onto the frame with a 35 degree 3d printed mount.

i'm only flying rate mode. i've tried turning down D a little which was another suggestion, but i haven't tried that yet.

ZMR 250 Frame, emax 2206-2300 kv
BLHeli Lightning S ESCs running oneshot125
Foxeer spracingf3 clone FC
various 3S batteries.

profile
profile 0

set pid_delta_method = MEASUREMENT
set yaw_p_limit = 500
set pidsum_limit = 700
set dterm_lowpass_type = BIQUAD
set dterm_lowpass = 100
set dterm_notch_hz = 260
set dterm_notch_cutoff = 160
set vbat_pid_compensation = OFF
set pid_at_min_throttle = ON
set iterm_throttle_gain = 0
set setpoint_relax_ratio = 30
set dterm_setpoint_weight = 200
set yaw_rate_accel_limit = 220
set rate_accel_limit = 0
set accum_threshold = 130
set yaw_accum_threshold = 32
set yaw_lowpass = 0
set pid_controller = BETAFLIGHT
set p_pitch = 58
set i_pitch = 50
set d_pitch = 18
set p_roll = 50
set i_roll = 40
set d_roll = 18
set p_yaw = 70
set i_yaw = 45
set d_yaw = 20
set p_alt = 50
set i_alt = 0
set d_alt = 0
set p_level = 20
set i_level = 50
set d_level = 100
set p_vel = 55
set i_vel = 55
set d_vel = 75
set level_sensitivity = 2.000
rateprofile 0