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low​-​frequency filtered noise source

by snwv

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1.

about

Recent articles* suggest that noise filtered with a lower-frequency cutoff ("brown noise") may help people manage their attention and stress. I've enjoyed the various ambient environments of filtered noise, and in 2017, I made a short loop of noise through filters and convolution reverbs.

This release expands that experiment to an hour in length, with noise sources from an audio file of noise, as well as a second source from a software synth. Both sources are filtered with a low-pass filter and a subsequent variable bandpass filter, sent through an inline convolution reverb, and then sent to a common convolution reverb. Through headphones, there's a strong suggestion of stereo space.

The standard caveat applies: don't listen to this at high sound pressure levels. Keep your volume low so you can continue to use your ears.

* News articles:
www.nytimes.com/interactive/2022/09/23/well/mind/brown-noise.html
www.washingtonpost.com/wellness/2022/11/14/brown-noise-adhd-focus/
www.theguardian.com/lifeandstyle/2022/oct/05/it-feels-like-fresh-air-to-my-ears-can-brown-noise-really-help-you-concentrate
www.cnn.com/2021/03/18/health/white-pink-brown-noise-sleep-wellness/index.html
www.psychologytoday.com/us/blog/helping-kids-through-adhd/202210/brown-noise-and-adhd-whats-the-scoop-on-the-latest-buzz

The only formal study I could find so far:
www.ncbi.nlm.nih.gov/pmc/articles/PMC7986458/

Happy (and noisy) new year!

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released December 30, 2022

Maurice Rickard: Ableton Live

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snwv Pittsburgh

Maurice Rickard is a musician, sound artist, and Deep Listening Certificate holder based in Pittsburgh. snwv is his project to create ambient environments from finely tuned oscillators and other sound sources as well (guitar, microphones, feedback). Some patches use mostly oscillators, some use delays, some use controlled amounts of randomness. Results range from gentle ambience to chaos. ... more

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