Uploaded March 2025 | Updated September 2026, 3 hours ago
Following me hearing the slightly lower than D beep on the 20th of July 2021, I got really into beeps and making them do the Doppler effect so I put one of my recorders inside a cushion from my couch at home, took it outside and threw it on the rectangular trampoline I have. This created a really good Doppler effect That almost went a semitone lower but unfortunately it went right over the fence and our neighbour wasn’t in so it continued beeping for about an hour then the batteries ran out in the recorder. I went round when our neighbour was back and retrieved it that night. I’ve just put the part where it does the Dopler effect here and a little bit more of the audio.
Following me hearing the slightly lower than D beep on the 20th of July 2021, I got really into beeps and making them do the Doppler effect so I put one of my recorders inside a cushion from my couch at home, took it outside and threw it on the rectangular trampoline I have. This created a really good Doppler effect That almost went a semitone lower but unfortunately it went right over the fence and our neighbour wasn’t in so it continued beeping for about an hour then the batteries ran out in the recorder. I went round when our neighbour was back and retrieved it that night. I’ve just put the part where it does the Dopler effect here and a little bit more of the audio.










