![waveform - Do inverse/reverse sawtooth waves sound different to human ears than forward sawtooth waves? - Sound Design Stack Exchange waveform - Do inverse/reverse sawtooth waves sound different to human ears than forward sawtooth waves? - Sound Design Stack Exchange](https://i.stack.imgur.com/93vU5.gif)
waveform - Do inverse/reverse sawtooth waves sound different to human ears than forward sawtooth waves? - Sound Design Stack Exchange
How do active noise cancelling drivers work? Do they cancel noise and play songs at the same time or are there dedicated drivers? - Quora
Noise cancelling is basically inverting a waveform and then playing it back to cancel out audio. If this is the case, I have a question. How do they create the inverted waveform
![6" Sound Wave - Pattern #11 (Chladni Figure 63)- In Cast Iron & Inverted Cast Iron — FLM Ceramics and Tile 6" Sound Wave - Pattern #11 (Chladni Figure 63)- In Cast Iron & Inverted Cast Iron — FLM Ceramics and Tile](https://images.squarespace-cdn.com/content/v1/54636bf7e4b0ead3d2d9535c/1591212584202-CFZC4BP30V72MKXRO8OE/FLM-Soundwave-Pattern11-inverted-web.jpg?format=1000w)