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  • PhET io sonification wrapper 1.0.0-dev.77

  • Listened to most of DOM descriptions, and self initiated movement


Generally too many alerts

  • The design was to only fire alerts when certain thresholds were passed, not with every action as it appears to be.
  • Users not waiting to listen to whole alert - just hear "magnet at center of play area"
  • For #603 lots of alerts being fired around center during exploration around coil (approx. 2:00)
    • (?JH) The design was to only fire alerts when certain thresholds were passed, not with every action as it appears to be.

    • (question) We can either attempt to fix this so less alerts, or go with grab/release

  • For #603 at 2:50-2:54 Suddenly a different text alert appears “4 loop coil to the right”, but little context. Sudden alert makes it seem exceptional.
    • Something with this implementation doesn’t seem right, not sure why it was triggered here and not earlier.

    • The original intention of this alert is to help users “set up” their magnet so they know when the coil is to the left or right.

    • (question) Perhaps this alert is not needed (user seemed to have figured it out without the alert anyway).

  • Moving magnet around - AT was reporting only play area location alerts

    • (?JH) There were supposed to be coil proximity information too. Unclear what happened to those.

Sonification and text alert mismatchmismatched

  • For #603  at 2:25, magnet inside coil and hit the top of coil. "bong" sound heard, but text alert says: "magnet at center of play area".
    • Text alert creating confusion because it's not describing what the "bong" sound means
    • Example
      • 6:26 - #603 wonders why there's a different sound.
      • 6:50 - explanation was given
    • Conversely, the example of the edge bump is good because the text alert explains the sound.
  • Text alerts should prioritize coil proximity first (as mentioned by TS in Github issue comments), then magnet location.

Boundary Sonification and text alert :complimentary

  • "Magnet at middle-right edge of play area" alert seemed good. User immediately reversed directions (#603)
    • (warning) Simplify this to just say: "At edge" or "At edge of play area", or remove all together (edge bump may be sufficient).
  • (question) For grab/release interaction, consider adding text alerts for just the exceptional events (coil bump, edge bump).

Missing orientation description of coil relative to play area

  • Scene summary currently lacks any information to establish the location of the coil in the play area.
  • Motivation: much of the text descriptions and alerts describe magnet and coil, and yet the coil is not mentioned at all in the scene summary.
CurrentlyProposed
"Faraday's Law‬ is an interactive sim. It changes as you play with it.

The play area has a light bulb circuit, and a moveable bar magnet. There are controls that change what is connected to the circuit, flip the bar magnet, and reset the sim.

Move the magnet to play using arrow keys, W A S D, or 1 2 3 keys.

If needed, check out keyboard shortcuts under Sim Resources."

"Faraday's Law‬ is an interactive sim. It changes as you play with it.

In the centre of the play area is a coil* connected to a light bulb circuit. There is a also moveable bar magnet.

Move the magnet to play using arrow keys, W A S D, or 1 2 3 keys.

Additional controls that change what is connected to the circuit, flip the bar magnet, and reset the sim. If needed, check out keyboard shortcuts under Sim Resources."

*Change "is a coil" to "are two different coils" if both coils are showing.


Descriptiveness of text alerts

  • "In 4 loop coil." ... #603 had some confusion about what that meant. (7:40)