Summary of What is up with Noises? (The Science and Mathematics of Sound, Frequency, and Pitch)

00:00:00 - 00:10:00

This video discusses how sound waves work and how they create patterns that our brains can detect. It explains how the human ears are able to detect these patterns and how the brain can fill in missing information in order to create a sense of pitch. Finally, the video demonstrates how the removal of certain notes from a sound sequence can change the apparent pitch of the sound.

• 00:00:00 The sound of an acoustic piano is created by a pianist plucking the strings, which pushes and pulls air molecules around. This creates sound waves that push and pull against each other in sympathy, and the brain interprets these waves as music. Different frequencies create different notes, and the height of the swing (the amplitude) gets smaller as the ratio gets smaller.
• 00:05:00 The overtone series is a sequence of musical notes that are based on mathematical ratios. These notes sound good to our ears because our ears hear them together in every vibration that reaches the cochlea. The overtone series is a secret chord contained within every note, and tonality is based on the overtone series. This video provides an explanation of how sound waves work and how the overtone series creates different sounds.
• 00:10:00 The video discusses how sound waves vibrate and how these vibrations create patterns that our brains can detect. It explains how the human ears are able to detect these patterns and how the brain can fill in missing information in order to create a sense of pitch. Finally, the video demonstrates how the removal of certain notes from a sound sequence can change the apparent pitch of the sound.