Single-mechanism focus
Each micro-lesson isolates one acoustic, data or discourse mechanism before mixing it with other demands.
KN English Systems
Academic English · IELTSA controlled learning architecture that converts language foundations into communication performance, then validates that performance through IELTS-style evidence and diagnosis.
Listening Lab
Exam listening, transcript alignment and sound-level diagnosis.
/english/listening/KN Programme Architecture
Language control
Form and meaning
Communication loop
Listen · Speak · Read · Write
IELTS validation
Measure and diagnose
KN Listening Systems · Phase 8 · LS1-01
Distinguish consonant and vowel contrasts that change an answer.
Operational curriculum
48 lessons · LS1–LS8
Current dose
18 min · foundation
Loading progress
Phase 8 · Observable learning progress
KN Listening Foundation Course
The sequence moves from acoustic decoding to exact data capture and then to discourse meaning. Prerequisites prevent gaps from being hidden by repeated test practice.
Studied
0/18
Attempts
0
Mastered
0/18
LS1 · ACOUSTIC
Each micro-lesson isolates one acoustic, data or discourse mechanism before mixing it with other demands.
Answers are committed before transcript evidence appears, so recognition is not confused with learning.
Review points to the exact evidence and the mechanism that produced the error, not only the answer key.
Guided section practice and the one-listen exam attempt are now separate stages with separate answers.
A lesson is not mastered until the mechanism works on new wording, new details and another browser accent.
Mastery status produces a 1-, 3- or 7-day review interval, persists the due date and unlocks the next prerequisite safely.
KN Listening workflow · Phase 4
Move from mechanism to evidence, repair and unseen transfer without losing your place.
Stage 01 · Learn · Theory before testing
Distinguish consonant and vowel contrasts that change an answer.
Conceptual foundation
Why this mechanism matters
A learner may know a word in writing yet fail to recognise it in connected speech. Listening therefore begins with acoustic categorisation, stress and boundary recovery—not with translation.
Processing model
Decide whether the answer depends on a vowel, consonant, stress pattern, reduction or word boundary.
Listen to the stressed vowel or final consonant, commit one answer, then compare the evidence with its IPA form.
Do not accept the first familiar form. Compare the decisive acoustic, grammatical or discourse evidence.
ship /ʃɪp/ versus sheep /ʃiːp/; cap /kæp/ versus cab /kæb/.
Evidence contrast table
| Signal | Interpretation | Failure risk |
|---|---|---|
| Citation form | Clear full vowels and released consonants | Real speech may reduce or link these sounds |
| Stressed syllable | Carries the clearest vowel and lexical identity | Unstressed syllables may be centralised to schwa |
| Final consonant | May distinguish words or plural/tense endings | It may be unreleased but still acoustically present |
| Word boundary | Recovered from stress and grammar | Linking can make two words sound like one |
Vietnamese transfer risk
Vietnamese learners often rely too heavily on spelling and may under-hear final consonants, vowel length and reduced function words. Train the ear to accept English sound categories before matching them to written forms.
IELTS application
Supports minimal-pair decisions in names, objects and technical terms where one vowel or final consonant changes the answer.
Knowledge check
Check 1
Check 2
Check 3
Operational strategies
Build a stable contrast between short and long vowels and between consonants that change lexical meaning.
Listen to the stressed vowel or final consonant, commit one answer, then compare the evidence with its IPA form.
Source-informed design
Learning rule: theory explains what evidence to seek; practice tests whether you can recover it under time pressure. Marking this stage complete never replaces the later independent exam.
KN Listening Systems · Curriculum registry
The programme separates acoustic decoding, exact data capture, discourse tracking, IELTS task control and diagnostic repair instead of treating listening as repeated test-taking.
Build the acoustic foundation required to recognise known words in continuous speech.
+3 more lessons
Capture names, numbers, dates, prices and corrected information without losing format accuracy.
+3 more lessons
Follow meaning when the recording reformulates the language used in the question.
+3 more lessons
Master every completion format through prediction, grammar control and word-limit discipline.
+5 more lessons
Evaluate alternatives by evidence rather than by keyword overlap.
+3 more lessons
Maintain a spatial model while directions, landmarks and technical parts unfold in real time.
+1 more lessons
Apply the micro-skills to the changing social, educational and academic demands of Parts 1–4.
+5 more lessons
Convert test evidence into targeted repair, transfer practice and measurable improvement.
+1 more lessons
KN Listening · Phase 2
Each response shape is validated before submission, then evaluated by its own task-specific rule rather than a universal text comparator.
Normalisation, accepted variants, word limits and number limits.
Single choice, unordered multi-select sets and complete matching maps.
Plan, map and diagram hotspots with typed label-placement records.
Phase 6 · Rights governance
A source citation and a distribution licence are different things. KN Origin Lab records both separately and blocks public bundling when written permission is absent.
Scripts, questions and audio created by KN Origin Lab may be distributed under the repository's own licence terms.
Operational rule
Public lessons must use KN Original or separately licensed media.
Credit alone does not authorise republication. Cambridge identifies audio and video extracts as material requiring a permissions licence for reuse in electronic formats.
Operational rule
Keep files outside Git, public assets and build output. Allow user-selected local playback only; publish metadata, original exercises and source references instead.
The browser may play a file selected by the learner without uploading or bundling it. The learner remains responsible for lawful possession and use.
Operational rule
Use an object URL for the current session, revoke it on replacement or unmount, and never persist the media bytes.
This product rule is a conservative publication safeguard, not jurisdiction-specific legal advice.
Private local playback
The file stays in this browser tab. KN Origin Lab creates a temporary object URL, does not upload the media and revokes the URL when the file is replaced or the component closes.
Audio source registry
Original scripts and browser-generated demo audio used to validate the learning workflow.
All 16 part files were detected. The pack is ready for private or licensed mapping; the audio itself must stay outside public source and build output.
All 16 part files are now accounted for. Test 4 Part 2 was supplied as a supplementary private MP3 and is registered without copying the audio into public source.
All 16 part files were detected. The pack is ready for private or licensed mapping; the audio itself must stay outside public source and build output.
Four complete-test files were detected. They are private-source ready but require segmentation into Parts 1–4 before transcript cue alignment.