# PWR-218 — Spatial-audio augmentation: learner worksheet Release: Revision 7T · Full Tutorial Edition Estimated time: Estimated 11 min reading; practical time is provider-set Difficulty: Intermediate Equipment: Basic stationery or digital tools — The provider-selected spatial-audio device and documented software/mapping version.; A quiet, controlled room with soft stationary targets, an ordinary-aid route and an immediate physical stop.; A localisation sheet, workload scale, cue-error log and manual/ordinary-aid fallback. Space: Desk / seated Automated structural checklist: 10 of 10 structural checks present Evidence quality/context: G4; Focused research depth Automated method-quality band: Comprehensive Method-rating basis: Structure coverage, instruction/check specificity, alternative distinctness, source troubleshooting, comparison depth and whether purpose/check fields are authored rather than derived. Editorial review: Pending manual editorial sign off ## Before you begin - [ ] I read the tutorial authority and stop conditions. - [ ] I have the required equipment/space or a declared accessible alternative. ## Canonical source context This provider-controlled spatial-audio evaluation starts with a user-valued doorway task; preserves cane use; locks Map v3, room, cue set plus volume; teaches three stationary sounds; checks speech masking plus device loss; weighs localisation against workload. It never teaches unsupervised navigation. Target outcome: Learner plus orientation-and-mobility professional produce a versioned Map v3 record showing cue-localisation errors, contacts or near misses, workload, cane use plus a stationary fallback after audio loss. ### Authority and setup conditions - Give the provider the exact task, hearing/vision/mobility history, current aids, sensory tolerances and preferred communication. - Agree who can stop the trial, what symptoms stop it and what happens if sound or tracking fails. - Record the room layout, cue set, volume limit, latency check, ordinary aids, helper position and maximum number of trials. ### Required or supplied materials - The provider-selected spatial-audio device and documented software/mapping version. - A quiet, controlled room with soft stationary targets, an ordinary-aid route and an immediate physical stop. - A localisation sheet, workload scale, cue-error log and manual/ordinary-aid fallback. ## 1. Choose one functional target With the provider, name one low-consequence target, such as locating a stationary doorway cue in a controlled room, and state what is not being tested. Why: A narrow target prevents “better navigation” from hiding task and user differences. Success check: Goal fields name user, cue, room, aid, success measure plus non-goals. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “Goal fields name user, cue, room, aid, success measure plus non-goals.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 2. Record the ordinary-aid baseline Complete a provider-cleared doorway task using normal aids without augmentation; record contacts, localisation error, time plus workload. Why: The device must be compared with the user’s real supported performance, not with removed support. Success check: A dated baseline records ordinary aids and no one is blindfolded. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “A dated baseline records ordinary aids and no one is blindfolded.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 3. Fit and explain the mapping Provider locks device settings, then teaches which sound feature means left, right, distance or stop; learner repeats each mapping in a preferred format. Why: A misunderstood cue can be more dangerous than no cue. Success check: The learner can point, say or demonstrate every cue meaning before moving. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “The learner can point, say or demonstrate every cue meaning before moving.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 4. Check sound and tracking quality While stationary, confirm comfortable volume, ear access, latency, tracking field and whether speech, alarms or ambient sounds remain detectable. Why: Masking, delay and lost tracking can erase or reverse benefit. Success check: The provider records acceptable settings and a visible device-failure signal. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “The provider records acceptable settings and a visible device-failure signal.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 5. Run single-cue trials From a marked start, identify one stationary cue at a time; move only after provider confirmation that room plus response are ready. Why: Isolating cues exposes systematic left/right or distance confusion before a route is attempted. Success check: At least eight trials have cue identity, response, error, replay and symptom fields. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “At least eight trials have cue identity, response, error, replay and symptom fields.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 6. Combine cue and ordinary aid Complete the approved short room task while keeping the cane, guide, handrail or other ordinary support in its usual role. Why: Augmentation should add information rather than demand unsafe aid removal. Success check: Learner retains cane use plus stops whenever a cue remains unclear. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “Learner retains cane use plus stops whenever a cue remains unclear.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 7. Test the failure fallback Provider announces simulated device-off while learner remains stationary; learner stops, then returns to an agreed cane or human-support option. Why: A useful system needs a safe response to battery, tracking or audio loss. Success check: Learner recognises audio loss, stays still plus reaches an agreed fallback without guessing. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “Learner recognises audio loss, stays still plus reaches an agreed fallback without guessing.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## 8. Compare benefit and burden Compare Map v3 against cane-only baseline for errors, contacts, time, workload, speech masking plus user value; name every configuration field in conclusions. Why: Slower performance may still be valuable, and fewer contacts may come with unacceptable workload. Success check: The record ends with continue, adapt, reject or seek further assessment and gives reasons. Accessible alternative: Ask the qualified provider to adapt positioning, cue modality, pace, interface or rest while preserving this step’s declared check: “The record ends with continue, adapt, reject or seek further assessment and gives reasons.” If an adaptation changes the measured task or configuration, record it as a different configuration rather than an equivalent attempt. Alternative relationship: Conditional equivalence requires target and configuration check Learner notes: ________________________________________________________________________________ Completed: [ ] ## Reflection What changed? ________________________________________________________________________________ What remains difficult? ________________________________________________________________________________ What will I repeat, adapt, ask for help with, or stop? ________________________________________________________________________________ --- Completion of this worksheet demonstrates tutorial participation only. It does not establish capability, qualification, safety clearance, diagnosis, treatment or independent validation.