{"id":2382,"date":"2019-09-07T09:31:50","date_gmt":"2019-09-07T14:31:50","guid":{"rendered":"https:\/\/nootropicdesign.com\/projectlab\/?p=2382"},"modified":"2019-09-07T09:51:46","modified_gmt":"2019-09-07T14:51:46","slug":"audio-hacker-realtime-reverser","status":"publish","type":"post","link":"https:\/\/nootropicdesign.com\/projectlab\/2019\/09\/07\/audio-hacker-realtime-reverser\/","title":{"rendered":"Arduino Audio Hacker Realtime Reverser"},"content":{"rendered":"

Here’s a fun project using the Audio Hacker shield for Arduino<\/a> – a realtime audio reverser! This program records the audio input to the Audio Hacker’s memory but plays it back in reverse. The “play head” jumps ahead a bit, then plays recorded audio backwards, then jumps ahead to the next snippet, plays it backward, and so on. There is a bit of lag between the input signal and reversed output, but this is unavoidable: we have to record something before playing it backward. There’s no way to play something backward in perfect realtime. This audio snippets are about a half-second long, so the lag is pretty small.<\/p>\n

It’s great to hook up to a TV signal and just reverse all the audio. Using this effect, spoken English sounds like Russian to me!<\/p>\n