Consider making some sounds louder

[Nancy-Salpepi]

Test device iPad Air 2 (name Leibniz)

Operating System 15.0.1

Browser Safari

Problem description https://github.com/phetsims/qa/issues/717

Some sounds are much louder than others. For example, the grab sound is very easy to hear, but the thud sound made when the books come into contact is difficult to hear at times. With voicing enabled, I can't hear the thud sound or the filtered noise generator (rubbing books together) during an utterance. I found these sounds especially helpful for knowing when the books were/weren't touching--especially since the "move down to rub harder" hint isn't given after a lot of atoms have been removed.

Visuals

https://user-images.githubusercontent.com/87318828/137524948-365c82b3-9ec7-4bb3-940e-2edcab97efdc.mov

Troubleshooting information: !!!!! DO NOT EDIT !!!!! Name: ‪Friction‬ URL: https://phet-dev.colorado.edu/html/friction/1.6.0-dev.19/phet/friction_all_phet.html Version: 1.6.0-dev.19 2021-10-08 22:59:15 UTC Flags: pixelRatioScaling User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.0 Safari/605.1.15 Language: en-US Window: 1024x1224 Pixel Ratio: 2/1 WebGL: WebGL 1.0 GLSL: WebGL GLSL ES 1.0 (1.0) Vendor: WebKit (WebKit WebGL) Vertex: attribs: 16 varying: 15 uniform: 1024 Texture: size: 8192 imageUnits: 16 (vertex: 16, combined: 32) Max viewport: 8192x8192 OES_texture_float: true Dependencies JSON: {}

[Matthew-Moore240]

I don't think this should block friction. It could be lower quality speakers which don't handle multiple sounds very well or the speakers just don't have enough dynamic range. Closing.