Revision 7T · Full Tutorial Edition · Updated 1 September 2026
PWR-080 · SUPERVISED full tutorial
Use a fitted sound-substitution device as an added cue while preserving the primary mobility method
Sensory-substitution tools can add real spatial information—but the capability belongs to person, device, training, mobility tools and environment together. Auditory navigation and sensory substitution belong to a person–device–training–environment system. A qualified orientation-and-mobility professional selects the clinic route, fits the doorway code into existing mobility tools, rehearses one segment, stops on ambiguity and compares device-on with the established long-cane fallback. The audio-substitution unit never replaces traffic judgment or a cane, dog or guide without formal assessment. The taught travel chain is concrete: establish the clinic-corridor shoreline with Noor's long cane, stop at the tactile floor marker, listen for the one trained doorway code, predict the doorway-opening side, confirm it with Noor's long cane and cross only on the O&M specialist’s instruction.
What you will produceUnder direct specialist supervision, Noor completes a controlled indoor route segment using the doorway code plus established mobility aids and executes the ambiguity-stop and fallback response.
Method10 numbered Power-specific steps
Practice authorityFull method with qualified supervision where stated
Full step-by-step individual tutorial · TLU-PWR-080
Under direct specialist supervision, Noor completes a controlled indoor route segment using the doorway code plus established mobility aids and executes the ambiguity-stop and fallback response.
While guarded indoors, learn the configured doorway code from a stationary position and predict its direction before cane/guide confirmation.
Travel the approved five-metre corridor segment while retaining the long cane, shoreline landmarks and qualified spotter.
Stop at an unclear/masked cue, state ‘cue unclear’ and return to the cane, landmark and guide fallback; log contacts, stops and help.
Qualified help is required for
Selecting/fitting/configuring the substitution aid, verifying hearing access and teaching its code and blind spots.
Assessing cane/guide skill, guarding the route, placing soft static obstacles and deciding when another route feature may be introduced.
Any training near stairs, platforms, roads, crowds, water, moving objects or an unfamiliar public environment.
Never do this from the page alone
Replace the long cane, guide dog, sighted guide or primary mobility method with the electronic cue during this lesson.
Walk through uncertainty, raise audio to mask discomfort or change device mapping/software/settings mid-route to rescue a score.
Use this corridor result as permission for independent street crossing, stairs, platforms, traffic or hazard detection.
2 · Get ready
Gather what you need and check the starting conditions
What you need
The individually selected and configured sensory-substitution or electronic travel aid.
Established cane, guide dog, sighted guide or other primary mobility method.
A quiet controlled indoor training route with soft/static obstacles and no stairs or traffic.
Route map and record for cue interpretation, stops, contacts/near misses, assistance, device state and burden.
Before you start
A qualified orientation-and-mobility professional checks device, hearing access, primary mobility skill, route and consent.
Charge, update and inspect the device; record model, software, settings and audio output.
Keep the established mobility aid in use and identify a sighted/qualified safety spotter.
No road crossing, platform, stair, crowd, water or moving-vehicle environment is used.
3 · The method
Follow these steps in order
Name the doorway code and its limit
Noor's O&M specialist explains exactly what the trained sound feature represents and what it fails to detect.
Why: A sound map is only useful when its coding and blind spots are explicit.
Check: Noor can state doorway code meaning and one failure mode.
Check long-cane fallback
Demonstrate the established cane, dog, guide or stop-and-wait method before the audio-substitution unit is turned on.
Why: The added device must not remove a proven mobility route.
Check: Long-cane fallback is immediately available and works on the clinic route.
Calibrate while stationary
In a fixed safe position, aim the audio-substitution unit at a known wall/opening or place the configured sensor and identify the corresponding cue.
Why: Stationary calibration separates cue learning from walking demand.
Check: Noor identifies the known doorway code on repeated checks.
Point before moving
For the first route landmark, state the predicted open direction or obstacle location while stationary and confirm with long-cane sweep.
Why: Prediction plus confirmation teaches how cues relate to the environment.
Check: The doorway prediction and long-cane check agree or the discrepancy is named.
Move one guarded segment
On the O&M specialist’s command, travel only the marked short segment at the set pace using Noor’s long cane plus the doorway code.
Why: Short segments bound errors and keep the professional able to stop the trial.
Check: Noor reaches the corridor-segment marker without unplanned contact.
Stop on ambiguity
When the doorway code is absent, conflicting, overloaded or surprising, stop immediately, state “cue unclear” and use the long-cane fallback or ask for help.
Why: Safe navigation depends on recognising device uncertainty, not guessing.
Check: Noor stops before stepping into the uncertain area.
Record error and recalibrate
Noor's O&M specialist classifies wrong-side code, missed code, positioning, environment or device fault; change one factor before a matched retry.
Why: Specific errors guide correction without hiding a near miss.
Check: The raw event and one correction are recorded.
Compare device on and off
On a safe matched segment, compare added value and burden with Noor’s usual long-cane method, then end with an equipment check and route debrief.
Why: Device-on performance must be better or meaningfully different without weakening fallback.
Check: Benefit, failures, assistance and burden are all explicit.
Anchor at last known landmark
Approach the tactile floor marker using Noor’s normal cane arc and shoreline technique. Stop with both feet behind the floor marker, name the wall side and point back toward the start before interpreting any synthetic sound.
Why: Auditory substitution is safer when each decision begins from a known orientation rather than from continuous uncertain walking.
Check: Noor identifies the floor marker, shoreline and return direction while stationary and without narrowing cane coverage.
Confirm doorway before crossing
Listen once for the trained opening code, state left, centre or right, then confirm the predicted threshold with Noor's long cane or guide. Cross only when the synthetic tone and long-cane check agree; otherwise invoke the ambiguity stop.
Why: A reflected or masked code can suggest an opening where the safe threshold is absent.
Check: The doorway threshold is confirmed by long-cane sweep, and any disagreement ends movement rather than prompting a test step.
4 · Worked example
See the whole method used once
Scenario
An orientation-and-mobility specialist trains Noor with a visual-to-auditory device in a quiet clinic corridor while Noor keeps a long cane.
Walkthrough
Noor's O&M specialist explains doorway code for an open doorway and one blind spot, then checks Noor’s cane fallback.
Stationary, Noor identifies doorway code and confirms it with the cane/guide.
Noor travels one five-metre guarded segment using both systems.
When overlapping sounds become unclear, Noor stops, says “cue unclear” and returns to the cane/guide method.
They compare a matched device-off segment and record cue accuracy, stops, assistance and fatigue.
Noor shorelines to the tactile marker, stops with both feet behind it and points back toward starting chair before listening for doorway code.
Noor predicts “opening left,” confirms doorway threshold with Noor's long cane and crosses only after Noor's O&M specialist verifies that cane and auditory information agree.
On a later pass, corridor chatter masks doorway code; Noor keeps the feet still, restores the full cane arc and returns to last landmark with the guide.
Result
Noor uses Audio-substitution unit as an added indoor cue and demonstrates a safe fallback. This does not authorise independent street navigation or replacement of established mobility tools. Noor demonstrates a repeatable landmark–listen–predict–confirm chain with a preserved long-cane fallback; the result remains specific to this clinic corridor and doorway code.
5 · Right and wrong
Compare correct or safer execution with the common wrong version
Right and wrong comparison
Moment
Right / safer
Wrong / riskier
Why it matters
Role of device
Use it as an added cue within the mobility plan.
Replace cane, dog or guide immediately.
A new device has blind spots and uncertain transfer.
Calibration
Learn one known cue while stationary.
Start walking while guessing what complex sounds mean.
Combined cue learning and movement increases risk.
Uncertainty
Stop and switch to fallback.
Step forward to test doorway code.
A failed test can cause collision or fall.
Route
Use a controlled indoor segment with a specialist.
Practise near traffic, stairs or platforms.
Consequences exceed the current evidence and authority.
Outcome
Record added value, failures, assistance and burden.
Count only completed routes.
Completion can hide near misses and specialist intervention.
At tactile landmark
Stop, name shoreline and return direction, then interpret doorway code.
Keep walking while decoding synthetic tone from memory.
A stationary known position bounds the consequence of a wrong auditory interpretation.
Sound predicts an opening
Confirm doorway threshold with Noor's long cane or guide before crossing.
Step toward the predicted gap to see whether doorway code was right.
Noor's long cane verifies the physical travel surface; the substituted cue remains supplementary.
6 · Common mistakes
Spot the error and apply the correction
Common mistakes and corrections
Mistake
Fix
Noor follows doorway tone while the long-cane arc narrows.
Stop at the last confirmed landmark, restore full cane coverage and resume only when cane and sound information can both be used.
A reflected corridor sound is accepted as the trained opening code.
Verify the doorway opening from a stationary position with cane or guide contact before crossing doorway threshold.
Two overlapping tones are averaged into a guessed direction.
Say “cue unclear,” freeze the feet and use the agreed cane, guide or return-to-landmark fallback.
The doorway code is practised after its loudness is increased above environmental sounds.
Return to the fitted audio level and simplify clinic corridor; alarms, speech and traffic-relevant sound must remain audible.
Noor memorises five steps and succeeds without identifying the landmark.
Vary the starting mark under specialist control and require a stationary cue prediction plus primary-aid confirmation.
A quiet clinic success is used to authorise stairs or a street crossing.
Keep the conclusion corridor-specific and require a separate orientation-and-mobility assessment for every higher-consequence setting.
7 · Practice
Turn the steps into a usable skill
First session
The O&M specialist verifies Noor’s audio-substitution unit, comfortable output, long cane, quiet five-metre corridor and no-step ambiguity rule.
Noor reaches the tactile floor marker with a full cane arc, names the wall shoreline and points toward the return chair.
From the stationary marker, Noor completes four concealed left/centre/right doorway-code predictions and confirms each threshold with the long cane or guide.
Noor travels one guarded corridor segment while keeping the cane sweep; any masked or conflicting code triggers “cue unclear” with both feet still.
A matched device-off pass and one staged audio-loss response are logged for side accuracy, cane continuity, stops, contact, assistance and fatigue.
Repeat plan
At later clinic appointments, the O&M specialist may rotate the doorway among cleared corridor positions while retaining the tactile marker, five-metre boundary and full cane arc. Controlled chatter is added only after every reflected, masked or conflicting code produces a no-step fallback; stairs, platforms and traffic require separate assessment.
Progress when
Noor reaches the tactile floor marker with a full cane arc, names the wall shoreline and points toward the return chair before listening.
Left, centre and right doorway-code predictions are confirmed with the long cane or guide without a wrong-threshold crossing.
Every masked, reflected, absent or conflicting code produces “cue unclear,” still feet and a return to the last confirmed landmark.
The device-on corridor pass adds useful doorway information without narrowing the cane sweep, increasing contact or masking environmental sound.
Do not progress when
Noor steps after an ambiguous code, loses the shoreline or narrows the long-cane arc while listening.
The audio mapping, output level, hearing access, route marker or primary mobility support changes.
The proposed setting contains stairs, platforms, traffic, moving obstacles or another hazard outside this clinic-corridor assessment.
8 · Check the result
Measure what changed
Doorway-side prediction, long-cane confirmation, cane-arc continuity, no-step ambiguity response, contact, assistance and burden on one clinic corridor
How: Record device/version/settings, route, correct/missed/false cues, stops, contacts and near misses, primary-aid use, assistance, time, burden and device-on/off difference. Add tactile-landmark arrival, cane-arc continuity, doorway-side prediction, primary-aid agreement and feet-moved-after-ambiguity to each corridor segment record.
Good result: Noor's O&M specialist observes repeatable added value in the clinic corridor, reliable ambiguity stops and preserved primary mobility skill without adverse effects.
This does not prove: A successful clinic-corridor doorway code does not prove sight restoration, street navigation, traffic judgment, safe stair or platform travel, replacement of a cane or benefit with another audio mapping.
Self-check
Can you demonstrate “Check long-cane fallback”? Long-cane fallback is immediately available and works on the clinic route.
Can you demonstrate “Move one guarded segment”? Noor reaches the corridor-segment marker without unplanned contact.
Can you demonstrate “Compare device on and off”? Benefit, failures, assistance and burden are all explicit.
Can you demonstrate floor marker stop, name wall shoreline and point toward the return route before using doorway sound?
If the tone suggests left but the cane finds a wall, can you keep both feet still and execute the agreed fallback?
9 · Stop, adapt or get help
Keep the safety boundary practical
Stop and get help
Stop movement immediately for an unclear/conflicting cue, device failure, loss of orientation, obstacle contact, dizziness or hearing discomfort.
Seek urgent help after a fall, head injury, sudden hearing/vision change or acute neurological symptoms.
Do not enter traffic, stairs, platforms or unfamiliar public routes until Noor's O&M specialist explicitly assesses that configuration.
Accessibility and adaptations
Keep Noor’s cane, guide dog, guide and communication supports; Audio-substitution unit is additive.
Use bone-conduction, speaker or hearing-device integration only when fitted and safe for environmental sound awareness.
Reduce cue density, route length or pace while preserving the ambiguity-stop and fallback goal.
10 · Evidence and limits
Why these instructions are here
primary research
A pilot study supports feasibility of a specific visual-to-auditory navigation aid and does not establish universal independent mobility.
Report intended-user status, training, device on/off, cane/guide-dog/human support, collision type, speed, cognitive load, dropout and failure mode; no device-only score is capability in full.
Unsupported claim: Restore sight through sound.
Unsupported claim: Throw away the cane.
Unsupported claim: AI makes blind travel autonomous.
Controlled indoor use does not prove independent navigation, traffic safety, replacement of primary mobility aids or benefit with another device/version.
Progress is saved only in this browser on this device.
Step-by-step learner mode
Each activity includes its success check, a nearby accessible alternative and an “I’m stuck” correction path. Alternatives preserve the target where possible; when they change the task, Titan labels them as related rather than equivalent.
01
Name the doorway code and its limit
Noor's O&M specialist explains exactly what the trained sound feature represents and what it fails to detect.
Why this step exists
A sound map is only useful when its coding and blind spots are explicit.
Success check
Noor can state doorway code meaning and one failure mode.
I’m stuck on this step
Reset: Re-read this authored instruction — “Noor's O&M specialist explains exactly what the trained sound feature represents and what it fails to detect.” — and its success check, then attempt only this step.
Possible snag: The doorway code is practised after its loudness is increased above environmental sounds.
Correction: Return to the fitted audio level and simplify clinic corridor; alarms, speech and traffic-relevant sound must remain audible.
Stop / get help: Stop movement immediately for an unclear/conflicting cue, device failure, loss of orientation, obstacle contact, dizziness or hearing discomfort.
02
Check long-cane fallback
Demonstrate the established cane, dog, guide or stop-and-wait method before the audio-substitution unit is turned on.
Why this step exists
The added device must not remove a proven mobility route.
Success check
Long-cane fallback is immediately available and works on the clinic route.
I’m stuck on this step
Reset: Re-read this authored instruction — “Demonstrate the established cane, dog, guide or stop-and-wait method before the audio-substitution unit is turned on.” — and its success check, then attempt only this step.
Possible snag: Two overlapping tones are averaged into a guessed direction.
Correction: Say “cue unclear,” freeze the feet and use the agreed cane, guide or return-to-landmark fallback.
Stop / get help: Stop movement immediately for an unclear/conflicting cue, device failure, loss of orientation, obstacle contact, dizziness or hearing discomfort.
03
Calibrate while stationary
In a fixed safe position, aim the audio-substitution unit at a known wall/opening or place the configured sensor and identify the corresponding cue.
Why this step exists
Stationary calibration separates cue learning from walking demand.
Success check
Noor identifies the known doorway code on repeated checks.
I’m stuck on this step
Reset: Re-read this authored instruction — “In a fixed safe position, aim the audio-substitution unit at a known wall/opening or place the configured sensor and identify the corresponding cue.” — and its success check, then attempt only this step.
Possible snag: The result from “In a fixed safe position, aim the audio-substitution unit at a known wall/opening or place the configured sensor and identify the corresponding cue.” does not yet meet this declared check: Noor identifies the known doorway code on repeated checks.
Correction: Return to the start of “Calibrate while stationary”, reduce complexity or pace, and repeat only the part needed to satisfy: “Noor identifies the known doorway code on repeated checks.”
Stop / get help: Stop movement immediately for an unclear/conflicting cue, device failure, loss of orientation, obstacle contact, dizziness or hearing discomfort.
04
Point before moving
For the first route landmark, state the predicted open direction or obstacle location while stationary and confirm with long-cane sweep.
Why this step exists
Prediction plus confirmation teaches how cues relate to the environment.
Success check
The doorway prediction and long-cane check agree or the discrepancy is named.
I’m stuck on this step
Reset: Re-read this authored instruction — “For the first route landmark, state the predicted open direction or obstacle location while stationary and confirm with long-cane sweep.” — and its success check, then attempt only this step.
Possible snag: The result from “For the first route landmark, state the predicted open direction or obstacle location while stationary and confirm with long-cane sweep.” does not yet meet this declared check: The doorway prediction and long-cane check agree or the discrepancy is named.
Correction: Return to the start of “Point before moving”, reduce complexity or pace, and repeat only the part needed to satisfy: “The doorway prediction and long-cane check agree or the discrepancy is named.”
Stop / get help: Stop movement immediately for an unclear/conflicting cue, device failure, loss of orientation, obstacle contact, dizziness or hearing discomfort.
05
Move one guarded segment
On the O&M specialist’s command, travel only the marked short segment at the set pace using Noor’s long cane plus the doorway code.
Why this step exists
Short segments bound errors and keep the professional able to stop the trial.
Success check
Noor reaches the corridor-segment marker without unplanned contact.
I’m stuck on this step
Reset: Re-read this authored instruction — “On the O&M specialist’s command, travel only the marked short segment at the set pace using Noor’s long cane plus the doorway code.” — and its success check, then attempt only this step.
Possible snag: Noor memorises five steps and succeeds without identifying the landmark.
Correction: Vary the starting mark under specialist control and require a stationary cue prediction plus primary-aid confirmation.
Stop / get help: Stop movement immediately for an unclear/conflicting cue, device failure, loss of orientation, obstacle contact, dizziness or hearing discomfort.
06
Stop on ambiguity
When the doorway code is absent, conflicting, overloaded or surprising, stop immediately, state “cue unclear” and use the long-cane fallback or ask for help.
Why this step exists
Safe navigation depends on recognising device uncertainty, not guessing.
Success check
Noor stops before stepping into the uncertain area.
I’m stuck on this step
Reset: Re-read this authored instruction — “When the doorway code is absent, conflicting, overloaded or surprising, stop immediately, state “cue unclear” and use the long-cane fallback or ask for help.” — and its success check, then attempt only this step.
Possible snag: The result from “When the doorway code is absent, conflicting, overloaded or surprising, stop immediately, state “cue unclear” and use the long-cane fallback or ask for help.” does not yet meet this declared check: Noor stops before stepping into the uncertain area.
Correction: Return to the start of “Stop on ambiguity”, reduce complexity or pace, and repeat only the part needed to satisfy: “Noor stops before stepping into the uncertain area.”
Stop / get help: Stop movement immediately for an unclear/conflicting cue, device failure, loss of orientation, obstacle contact, dizziness or hearing discomfort.
07
Record error and recalibrate
Noor's O&M specialist classifies wrong-side code, missed code, positioning, environment or device fault; change one factor before a matched retry.
Why this step exists
Specific errors guide correction without hiding a near miss.
Success check
The raw event and one correction are recorded.
I’m stuck on this step
Reset: Re-read this authored instruction — “Noor's O&M specialist classifies wrong-side code, missed code, positioning, environment or device fault; change one factor before a matched retry.” — and its success check, then attempt only this step.
Possible snag: The result from “Noor's O&M specialist classifies wrong-side code, missed code, positioning, environment or device fault; change one factor before a matched retry.” does not yet meet this declared check: The raw event and one correction are recorded.
Correction: Return to the start of “Record error and recalibrate”, reduce complexity or pace, and repeat only the part needed to satisfy: “The raw event and one correction are recorded.”
Stop / get help: Stop movement immediately for an unclear/conflicting cue, device failure, loss of orientation, obstacle contact, dizziness or hearing discomfort.
08
Compare device on and off
On a safe matched segment, compare added value and burden with Noor’s usual long-cane method, then end with an equipment check and route debrief.
Why this step exists
Device-on performance must be better or meaningfully different without weakening fallback.
Success check
Benefit, failures, assistance and burden are all explicit.
I’m stuck on this step
Reset: Re-read this authored instruction — “On a safe matched segment, compare added value and burden with Noor’s usual long-cane method, then end with an equipment check and route debrief.” — and its success check, then attempt only this step.
Possible snag: The result from “On a safe matched segment, compare added value and burden with Noor’s usual long-cane method, then end with an equipment check and route debrief.” does not yet meet this declared check: Benefit, failures, assistance and burden are all explicit.
Correction: Return to the start of “Compare device on and off”, reduce complexity or pace, and repeat only the part needed to satisfy: “Benefit, failures, assistance and burden are all explicit.”
Stop / get help: Stop movement immediately for an unclear/conflicting cue, device failure, loss of orientation, obstacle contact, dizziness or hearing discomfort.
09
Anchor at last known landmark
Approach the tactile floor marker using Noor’s normal cane arc and shoreline technique. Stop with both feet behind the floor marker, name the wall side and point back toward the start before interpreting any synthetic sound.
Why this step exists
Auditory substitution is safer when each decision begins from a known orientation rather than from continuous uncertain walking.
Success check
Noor identifies the floor marker, shoreline and return direction while stationary and without narrowing cane coverage.
I’m stuck on this step
Reset: Re-read this authored instruction — “Approach the tactile floor marker using Noor’s normal cane arc and shoreline technique. Stop with both feet behind the floor marker, name the wall side and point back toward the start before interpreting any synthetic sound.” — and its success check, then attempt only this step.
Possible snag: The result from “Approach the tactile floor marker using Noor’s normal cane arc and shoreline technique. Stop with both feet behind the floor marker, name the wall side and point back toward the start before interpreting any synthetic sound.” does not yet meet this declared check: Noor identifies the floor marker, shoreline and return direction while stationary and without narrowing cane coverage.
Correction: Return to the start of “Anchor at last known landmark”, reduce complexity or pace, and repeat only the part needed to satisfy: “Noor identifies the floor marker, shoreline and return direction while stationary and without narrowing cane coverage.”
Stop / get help: Stop movement immediately for an unclear/conflicting cue, device failure, loss of orientation, obstacle contact, dizziness or hearing discomfort.
10
Confirm doorway before crossing
Listen once for the trained opening code, state left, centre or right, then confirm the predicted threshold with Noor's long cane or guide. Cross only when the synthetic tone and long-cane check agree; otherwise invoke the ambiguity stop.
Why this step exists
A reflected or masked code can suggest an opening where the safe threshold is absent.
Success check
The doorway threshold is confirmed by long-cane sweep, and any disagreement ends movement rather than prompting a test step.
I’m stuck on this step
Reset: Re-read this authored instruction — “Listen once for the trained opening code, state left, centre or right, then confirm the predicted threshold with Noor's long cane or guide. Cross only when the synthetic tone and long-cane check agree; otherwise invoke the ambiguity stop.” — and its success check, then attempt only this step.
Possible snag: Noor follows doorway tone while the long-cane arc narrows.
Correction: Stop at the last confirmed landmark, restore full cane coverage and resume only when cane and sound information can both be used.
Possible snag: A reflected corridor sound is accepted as the trained opening code.
Correction: Verify the doorway opening from a stationary position with cane or guide contact before crossing doorway threshold.
Possible snag: A quiet clinic success is used to authorise stairs or a street crossing.
Correction: Keep the conclusion corridor-specific and require a separate orientation-and-mobility assessment for every higher-consequence setting.
Stop / get help: Stop movement immediately for an unclear/conflicting cue, device failure, loss of orientation, obstacle contact, dizziness or hearing discomfort.
Correct versus incorrect execution
These accessible process diagrams are built from the tutorial’s own right/wrong teaching. They are not anatomical illustrations and do not add technique beyond the canonical tutorial.
Role of device — A new device has blind spots and uncertain transfer.
Correct / safer
Use it as an added cue within the mobility plan.
Wrong / riskier
Replace cane, dog or guide immediately.
Calibration — Combined cue learning and movement increases risk.
Correct / safer
Learn one known cue while stationary.
Wrong / riskier
Start walking while guessing what complex sounds mean.
Uncertainty — A failed test can cause collision or fall.
Correct / safer
Stop and switch to fallback.
Wrong / riskier
Step forward to test doorway code.
Route — Consequences exceed the current evidence and authority.
Correct / safer
Use a controlled indoor segment with a specialist.
Wrong / riskier
Practise near traffic, stairs or platforms.
Outcome — Completion can hide near misses and specialist intervention.
Correct / safer
Record added value, failures, assistance and burden.
Wrong / riskier
Count only completed routes.
At tactile landmark — A stationary known position bounds the consequence of a wrong auditory interpretation.
Correct / safer
Stop, name shoreline and return direction, then interpret doorway code.
Wrong / riskier
Keep walking while decoding synthetic tone from memory.
Sound predicts an opening — Noor's long cane verifies the physical travel surface; the substituted cue remains supplementary.
Correct / safer
Confirm doorway threshold with Noor's long cane or guide before crossing.
Wrong / riskier
Step toward the predicted gap to see whether doorway code was right.
Method-structure checklist
10 of 10 structural checks present
✓ Ordered, Power-specific instructions — present
✓ Every activity has a success check — present
✓ Materials or supplied records are declared — present
✓ Measurement or assessment rule is present — present
✓ Tutorial-specific troubleshooting is present — present
✓ Stopping or escalation boundary is present — present
✓ Every activity has an adjacent alternative — present
✓ Correct-versus-incorrect comparison is present — present
✓ Evidence context is bound to the Power record — present
✓ Planning metadata is present — present
The method-readiness band and presence checklist assess tutorial presentation and are separate from evidence quality for the underlying Power. They are automated editorial aids, not human approval.
Manual editorial sign-off: Pending. This tutorial must not display a human-approved state until an identified editor signs the exact content hash.