Professional development concepts through demonstrations, teach-backs and evidence-based assessment. 15 designed hours; actual participation is reviewed separately. Each module asks you to do the practical work on the setup you expect to teach with. Keep a before and after example and check that someone else can replay or reopen it. Teach the method to a colleague or reviewer, score the sample case, and revise after feedback. Record the time you actually spend. If equipment is unavailable, mark the hands-on skill for a later check. Before each demonstration, identify the source, route and playback conditions and ask for a prediction. After the comparison, ask what changed, what stayed fixed and what remains untested. If the explanation misses the point, use a simpler example and check again.
15 modules plus a final portfolio review.
Preview: Coach listening with calibrated claims
Teach listening comparisons that support a claim without hiding a meaningful level difference.
Prepare
Use modest playback, stable output and short trials. Randomize the order of the level pair without normalizing it; normalization would erase the intentional difference. No calibrated hearing-threshold claims.
Student lesson to teach
Find the frequency region: Advanced listening starts with a specific question. Compare broad frequency references, then return to a musical phrase and identify a region that seems dominant or obscured. Avoid sweeping a loud sine tone or boosting sharply to hunt for an answer. Listen at a comfortable level and state uncertainty. A region estimate is often more useful than a falsely precise frequency label.
Can you hear 3 dB?: A level difference can influence a mix judgment even when the tone is unchanged. The supplied pair differs by 3 dB in amplitude level; it is not a change of pitch or EQ. Keep playback fixed and compare short matching passages. Ask a partner or teacher to vary the order and record your answer before the reveal. The purpose is to notice how level affects decisions, not to earn a medical hearing score.
Now compare 1 dB: A smaller difference may be harder to judge consistently. Use the 1 dB pair with the same procedure and resist changing the monitor level between files. Record confidence rather than guessing that every answer is certain. Repetition can teach you about the task, but a few trials do not establish a personal threshold. In a mix, small changes also interact with masking and attention, so transfer the lesson cautiously.
Set a reference and log uncertainty: A repeatable reference helps you compare versions without chasing loudness. Record the playback device, volume setting and source file, then use that setup consistently. Without calibrated measurement, do not claim a sound-pressure level. Keep sessions comfortable and take breaks as needed. When you change systems, establish a new documented reference and treat observations as context-dependent. This is a working comparison method, not a hearing test.
Teaching principle
The educator preserves the intentional level difference, varies order, collects choices/confidence before reveal and treats results as a bounded classroom task. No clinical claim is made.
Student practice sequence for your demonstration
Find the frequency region: Label the three reference regions. Listen to the phrase and name one region of interest. Test a small broad EQ change on a copy where supported. Record whether the observation survives a context comparison. Evidence: Reference labels and one bounded diagnostic test.
Can you hear 3 dB?: Set comfortable playback with the louder file first. Run six short order-varied comparisons with a teacher or partner. Record louder choice and confidence before reveal. Check results and describe any uncertainty or order effect. Evidence: Six-trial record with choices, revealed order and reflection.
Now compare 1 dB: Run six short comparisons with order varied. Write choice and confidence before each reveal. Compare consistency with the 3 dB trials. Name one condition that could affect the results. Evidence: Trial log and cautious comparison of results.
Set a reference and log uncertainty: Choose and document a comfortable playback setup. Use the reference before judging a short mix. Repeat the reference after the comparison to check setup consistency. Record uncertainty and any changed conditions. Evidence: Reference/setup log and limits statement.
Demonstrate
Hear 150, 1000 and 4000 Hz references, then the supplied phrase.
1. Label the three reference regions. 2. Listen to the phrase and name one region of interest. 3. Test a small broad EQ change on a copy where supported. 4. Record whether the observation survives a context comparison.
Ask the student diagnostic: Does a frequency reference establish an individual hearing threshold? Collect an explanation, not just yes/no. Offer text or spoken/transcribed response.
Practice and teach back
Set a repeatable playback reference and choose when to match, and when not to match, an A/B pair.
Case to assess
An educator uses six 1 dB trials as a hearing-acuity diagnosis and normalizes the level pairs first.
Evidence
Comparison audio, playback notes and a stated reason for each level choice.
Full lessons, listening files and downloads require enrollment. Answer keys require separately approved instructor access. Completion is based on reviewed work; certificates are not issued automatically.