Update index.json

Author: localhost433

notes/courses/LING-UA-1/02-phonetics.md

@@ -73,13 +73,4 @@ Three key features:
   - Glides
     - Semi-vowels, very vowel-like.
 
-**Describe: Voicing, place, manner**
-
-## Natural Classes
-|              | **Obstruent** | **Sonorant** | **Noncontinuant** | **Continuant** | **Sibilant** |
-| :----------: | :-----------: | :----------: | :---------------: | :------------: | :----------: |
-|     Stop     |       x       |              |         x         |                |              |
-|   Affricate  |       x       |              |         x         |                |       x      |
-|   Fricative  |       x       |              |                   |       x        |       x      |
-|     Nasal    |               |       x      |         x         |                |              |
-|  Approximant |               |       x      |                   |       x        |              |
+**Describe: Voicing, place, manner**

notes/courses/LING-UA-1/03-phonetics.md

@@ -9,11 +9,11 @@ date: 2025-05-21
 
 **Bold** = tense, *italic* = lax
 
-| Height | Front        | Central | Back        |
-|:------:|:------------:|:-------:|:-----------:|
+|  Height  |    Front    | Central |    Back     |
+| :------: | :---------: | :-----: | :---------: |
 | **High** | **i** / *ɪ* |         | *ʊ* / **u** |
-| **Mid**  | **e** / *ɛ* | *ə*     | *ɔ* / **o** |
-| **Low**  | *æ*         | *ʌ*     | **a**       |
+| **Mid**  | **e** / *ɛ* |   *ə*   | *ɔ* / **o** |
+| **Low**  |     *æ*     |   *ʌ*   |    **a**    |
 
 ### What are vowels?
 
@@ -26,8 +26,8 @@ date: 2025-05-21
 - Roundedness (Are lips are being rounded or not?)
 
 #### Monophthongs vs. Diphthongs
-- Monophthongs (mono-) for one
-- Diphthongs (di-) for two put together
+- Monophthongs [^1] for one syllable.
+- Diphthongs [^2] for two put together
 
 ## Acoustics and perception
 - Periodic sounds: Vowels
@@ -37,3 +37,5 @@ date: 2025-05-21
 - Amplitude - Loudness
 - Formants
 
+[^1]: Mono-
+[^2]: Di-

notes/courses/LING-UA-1/04-phonology.md

@@ -4,34 +4,36 @@ date: 2025-05-22
 ---
 
 # Phonology
+
+The study of the structures and patterns of speech sounds, at a more abstract level than phonetics.
+
 ## Phones, Phonemes, Allophones
 
-Phones: basic unit of speech sound, concrete, what we hear.
+### Phones
 
-Two languages may use the same tone, but used differently.
-- Difference between the **underlying sound** and how it is **phonetically realized**.
+Basic unit of speech sound, concrete, what we hear. (Correspond to individual IPA symbols)
 
-Checking for minimal pairs
-- determining whether two phones are different.
+- IPA is a list of universal phones, but no language would use every phone.
+- Two languages may use the same tone, but used differently.
+  - Difference between the **underlying sound** and how it is **phonetically realized**.
 
-Word pair where everything is identical except for a sound is called a minimal pair.
+### Checking for minimal pairs
+- A minimal pair is word tuple where everything is identical except for a single sound.
 
-### Type of distribution
+Word pair where everything is identical except for a sound is called a minimal pair.
 
-#### Contrastive distribution
-There is a minimal pair
+##### Contrastive distribution
+There is a minimal pair, that two phones can occur in the same phonological context.
 
-#### Complementary distribution
-If there are no minimal pairs, it is not contrastive. That they are is a complementary distribution, meaning:
-- they are used in different phonological contexts
+##### Complementary distribution
+If there are no minimal pairs, it is *not* contrastive. That they are is a complementary distribution, meaning these to are used in different phonological contexts.
 
-#### Free Variation
-can occur in the same context, but do not result in a contrast in meaning.
+##### Free Variation
+Can occur in the same context, but do *not* result in a contrast in meaning.
 
-### Introducing the phoneme
+### Phoneme
 
-Two sounds are in complementary distribution
-They represent the same underlying sounds
+Two sounds are in complementary distribution that represent the same underlying sounds.
 
 i.e. smallest contrastive unit
 
@@ -89,9 +91,16 @@ Sounds are ranked based on how 'loud' phones are.
 `/p/`, `/t/`, `/d/` follows this pattern with aspiration in English.
 
 ### Natural classes
-Referring back to [the chart in 02](https://robinc.vercel.app).
 Groupd of phones that can be defined by some phonetic similarity.
 
+|              | **Obstruent** | **Sonorant** | **Noncontinuant** | **Continuant** | **Sibilant** |
+| :----------: | :-----------: | :----------: | :---------------: | :------------: | :----------: |
+|     Stop     |       x       |              |         x         |                |              |
+|   Affricate  |       x       |              |         x         |                |       x      |
+|   Fricative  |       x       |              |                   |       x        |       x      |
+|     Nasal    |               |       x      |         x         |                |              |
+|  Approximant |               |       x      |                   |       x        |              |
+
 #### Feature specifications (based on the manner of articulation)
 To determine the minimal distinguishing feature between two sounds.
 - Continuants vs. Noncontinuants

notes/courses/LING-UA-1/index.json

@@ -1,17 +1,17 @@
 [
     {
         "slug": "01-intro",
-        "title": "01 – What is Language",
+        "title": "01 - What is Language",
         "date": "2025-05-19"
     },
     {
         "slug": "02-phonetics",
-        "title": "02 – Phonetics",
+        "title": "02 - Phonetics",
         "date": "2025-05-20"
     },
     {
         "slug": "03-phonetics",
-        "title": "03 – Phonetics",
+        "title": "03 - Phonetics",
         "date": "2025-05-21"
     },
     {