# Are :noise and :cnoise the same?

**URL:** <https://in-thread.sonic-pi.net/t/are-noise-and-cnoise-the-same/9875>\
**Category:** Support, Help & Resources\
**Created:** [October 31, 2025, 9:20am UTC](https://in-thread.sonic-pi.net/t/are-noise-and-cnoise-the-same/9875 "2025-10-31T09:20:36Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![H\_Tachibana](https://avatars.discourse-cdn.com/v4/letter/h/e68b1a/32.png) [@H\_Tachibana](https://in-thread.sonic-pi.net/u/H_Tachibana)\
**Post date:** [October 31, 2025, 9:20am UTC](https://in-thread.sonic-pi.net/t/are-noise-and-cnoise-the-same/9875/1 "2025-10-31T09:20:36Z")

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Although the HELP documentation states otherwise, :noise and :cnoise sounded identical and had the same spectrogram.  
Both are white noise-like?