I've downloaded SoniControl and it works somewhat well as a jammer, but I am looking for more options.
I'm trying to shield from or jam Ultrasonic Cross-Device Tracking (uxDT). (See "data over audio" and "data over sound")
I am a programmer, not an engineer, so my options are somewhat limited. I cannot build a sonic jammer, unless it is only software.
I looked at generating noise at a high frequency via python, but I'm not great at audio signal processing and didn't get very far. Here was my code, much of it copied from Stack Overflow (I did not know how to tweak my python script to generate inaudible ultrasound sound -- unless I just didn't hear it, but I didn't really have a way to test -- I tried setting the sample rate to 1 000 000+):
from scipy.io import wavfile
from scipy import stats
import numpy as np
sample_rate = 44100
length_in_seconds = 3
amplitude = 50
noise = stats.truncnorm(-1, 1, scale=min(2**16, 2**amplitude)).rvs(sample_rate * length_in_seconds)
wavfile.write('noise.wav', sample_rate, noise.astype(np.int16))
How can this script be improved?
If not, what are other ways for jamming?
I saw in this research paper: https://caslab.csl.yale.edu/publications/matyunin2018zeropermission.pdf that foam helps somewhat. What are other methods for shielding from ultrasound?
