DIRECTIONAL-AUDIO LISTENING CHECK
Yenra | https://yenra.com/hypersonic-sound/
Updated October 9, 2026

Purpose: Compare intelligibility and audible spill at an intended installation.
This is a qualitative listening record, not an ultrasound exposure measurement,
compliance certificate or substitute for manufacturer installation instructions.
Use the exact model's documentation and qualified installation support.

PROJECT
Room/exhibit and intended content:
Date and observer:
Panel make/model and relevant manual version:
Mounting height (state units), location and aim:
Source recording name and duration (seconds):
Playback setting and other processing:
Background sound and occupancy:
Accessibility alternative (transcript/captions/other):

BEFORE LISTENING
[ ] Draw a room plan and mark panel, intended listeners, neighboring exhibits,
    staff positions, hard surfaces and any approved absorbing treatment.
[ ] Define the success criterion for this project before testing.
[ ] Keep recording and settings fixed while comparing positions.
[ ] Use manufacturer-approved installation and operation.
[ ] Include willing listeners at relevant seated and standing ear heights.

POSITION RECORD (repeat this block for each marked position)
Position ID on plan:
Distance/offset from reference point (state units):
Listener ear height (state units):
Intended listening position or unintended spill location:
Speech: understandable / audible but unclear / not heard by this listener
Words or key instruction correctly understood:
Background/adjacent-program condition:
Reflections or obstruction observed:
Listener feedback:

COMPARISON
Run A conditions:
One variable changed for Run B:
Run B conditions:
Same recording/settings/positions retained? Explain exceptions:
Intelligibility improved or worsened, where:
Audible spill improved or worsened, where:
Result at seated and standing heights:

DECISION
Acceptance criterion met? Evidence and unresolved gaps:
Manufacturer/exposure/compliance questions requiring qualified follow-up:
Owner of next action:
Retest after: changed aim, furnishings, exhibit, content, level or occupancy.

Reference example (model-specific):
https://www.holosonics.com/s/Audio_Spotlight_User-Manual.pdf
See the Yenra article for mechanism, limitations and an illustrative room case.