The Noise Audio Recorders Won't Like
Audio jammers are popular tools used during confidential meetings. They produce a unique sound for masking and protecting conversations from external listening devices, such as a smartphone running an audio recording app, hidden in one of your guests' pocket.
The sound of a jammer should be very difficult to filter out or remove when present in an audio recording. While commercial audio jammers often rely on white noise, this generator, however, uses a more efficient sound with articulation similar to speech. It is also buried under severe distortion, which makes recovery algorithms have a hard time producing exploitable results.
For further privacy, increase the generator's volume to play louder than your voice. Then, if you are holding a conversation in person, speak quietly, and very close to your partner so they hear you over the sound.