diff --git a/1000-hours/.vitepress/config.mts b/1000-hours/.vitepress/config.mts
index c080796c..b17e8a0c 100644
--- a/1000-hours/.vitepress/config.mts
+++ b/1000-hours/.vitepress/config.mts
@@ -117,12 +117,12 @@ export default withMermaid(
link: "/sounds-of-american-english/3.1.1-ə",
},
{
- text: "2.1.2. 舌位",
- link: "/sounds-of-american-english/2.1.2-tongue",
+ text: "3.1.2. ʌ/ɑː/ɑːr",
+ link: "/sounds-of-american-english/3.1.2-ɑ",
},
{
- text: "2.1.3. ʌ/ɑː/ɑːr",
- link: "/sounds-of-american-english/2.1.3-ʌ",
+ text: "3.1.3. ɪ/i/iː",
+ link: "/sounds-of-american-english/3.1.3-i",
},
{
text: "2.1.4. e/æ",
diff --git a/1000-hours/public/audios/almond-us-female.mp3 b/1000-hours/public/audios/almond-us-female.mp3
new file mode 100644
index 00000000..e33b6eb6
Binary files /dev/null and b/1000-hours/public/audios/almond-us-female.mp3 differ
diff --git a/1000-hours/public/audios/almond-us-male.mp3 b/1000-hours/public/audios/almond-us-male.mp3
new file mode 100644
index 00000000..2ef73366
Binary files /dev/null and b/1000-hours/public/audios/almond-us-male.mp3 differ
diff --git a/1000-hours/public/audios/ask-uk-female.mp3 b/1000-hours/public/audios/ask-uk-female.mp3
new file mode 100644
index 00000000..30ec7d6d
Binary files /dev/null and b/1000-hours/public/audios/ask-uk-female.mp3 differ
diff --git a/1000-hours/public/audios/ask-uk-male.mp3 b/1000-hours/public/audios/ask-uk-male.mp3
new file mode 100644
index 00000000..a4d360aa
Binary files /dev/null and b/1000-hours/public/audios/ask-uk-male.mp3 differ
diff --git a/1000-hours/public/audios/ask-us-female.mp3 b/1000-hours/public/audios/ask-us-female.mp3
new file mode 100644
index 00000000..d2eac10c
Binary files /dev/null and b/1000-hours/public/audios/ask-us-female.mp3 differ
diff --git a/1000-hours/public/audios/ask-us-male.mp3 b/1000-hours/public/audios/ask-us-male.mp3
new file mode 100644
index 00000000..62ff49cd
Binary files /dev/null and b/1000-hours/public/audios/ask-us-male.mp3 differ
diff --git a/1000-hours/public/audios/awning-us-female.mp3 b/1000-hours/public/audios/awning-us-female.mp3
new file mode 100644
index 00000000..10e51465
Binary files /dev/null and b/1000-hours/public/audios/awning-us-female.mp3 differ
diff --git a/1000-hours/public/audios/awning-us-male.mp3 b/1000-hours/public/audios/awning-us-male.mp3
new file mode 100644
index 00000000..184f083b
Binary files /dev/null and b/1000-hours/public/audios/awning-us-male.mp3 differ
diff --git a/1000-hours/public/audios/balm-us-female.mp3 b/1000-hours/public/audios/balm-us-female.mp3
new file mode 100644
index 00000000..94d9d025
Binary files /dev/null and b/1000-hours/public/audios/balm-us-female.mp3 differ
diff --git a/1000-hours/public/audios/balm-us-male.mp3 b/1000-hours/public/audios/balm-us-male.mp3
new file mode 100644
index 00000000..c35a11bf
Binary files /dev/null and b/1000-hours/public/audios/balm-us-male.mp3 differ
diff --git a/1000-hours/public/audios/beach-us-female.mp3 b/1000-hours/public/audios/beach-us-female.mp3
new file mode 100644
index 00000000..674296f4
Binary files /dev/null and b/1000-hours/public/audios/beach-us-female.mp3 differ
diff --git a/1000-hours/public/audios/beach-us-male.mp3 b/1000-hours/public/audios/beach-us-male.mp3
new file mode 100644
index 00000000..e8ba527a
Binary files /dev/null and b/1000-hours/public/audios/beach-us-male.mp3 differ
diff --git a/1000-hours/public/audios/beat-us-female.mp3 b/1000-hours/public/audios/beat-us-female.mp3
new file mode 100644
index 00000000..7924934a
Binary files /dev/null and b/1000-hours/public/audios/beat-us-female.mp3 differ
diff --git a/1000-hours/public/audios/beat-us-male.mp3 b/1000-hours/public/audios/beat-us-male.mp3
new file mode 100644
index 00000000..c8df5365
Binary files /dev/null and b/1000-hours/public/audios/beat-us-male.mp3 differ
diff --git a/1000-hours/public/audios/because-us-female.mp3 b/1000-hours/public/audios/because-us-female.mp3
new file mode 100644
index 00000000..edd3f876
Binary files /dev/null and b/1000-hours/public/audios/because-us-female.mp3 differ
diff --git a/1000-hours/public/audios/because-us-male.mp3 b/1000-hours/public/audios/because-us-male.mp3
new file mode 100644
index 00000000..741d5559
Binary files /dev/null and b/1000-hours/public/audios/because-us-male.mp3 differ
diff --git a/1000-hours/public/audios/bee-us-female.mp3 b/1000-hours/public/audios/bee-us-female.mp3
new file mode 100644
index 00000000..a43258ed
Binary files /dev/null and b/1000-hours/public/audios/bee-us-female.mp3 differ
diff --git a/1000-hours/public/audios/bee-us-male.mp3 b/1000-hours/public/audios/bee-us-male.mp3
new file mode 100644
index 00000000..9f2de340
Binary files /dev/null and b/1000-hours/public/audios/bee-us-male.mp3 differ
diff --git a/1000-hours/public/audios/believe-us-female.mp3 b/1000-hours/public/audios/believe-us-female.mp3
new file mode 100644
index 00000000..7f37b4d0
Binary files /dev/null and b/1000-hours/public/audios/believe-us-female.mp3 differ
diff --git a/1000-hours/public/audios/believe-us-male.mp3 b/1000-hours/public/audios/believe-us-male.mp3
new file mode 100644
index 00000000..b426da56
Binary files /dev/null and b/1000-hours/public/audios/believe-us-male.mp3 differ
diff --git a/1000-hours/public/audios/bit-us-female.mp3 b/1000-hours/public/audios/bit-us-female.mp3
new file mode 100644
index 00000000..2ea93abd
Binary files /dev/null and b/1000-hours/public/audios/bit-us-female.mp3 differ
diff --git a/1000-hours/public/audios/bit-us-male.mp3 b/1000-hours/public/audios/bit-us-male.mp3
new file mode 100644
index 00000000..c0c4c52e
Binary files /dev/null and b/1000-hours/public/audios/bit-us-male.mp3 differ
diff --git a/1000-hours/public/audios/blood-us-female.mp3 b/1000-hours/public/audios/blood-us-female.mp3
new file mode 100644
index 00000000..6649dd19
Binary files /dev/null and b/1000-hours/public/audios/blood-us-female.mp3 differ
diff --git a/1000-hours/public/audios/blood-us-male.mp3 b/1000-hours/public/audios/blood-us-male.mp3
new file mode 100644
index 00000000..ee9b6b68
Binary files /dev/null and b/1000-hours/public/audios/blood-us-male.mp3 differ
diff --git a/1000-hours/public/audios/bought-us-female.mp3 b/1000-hours/public/audios/bought-us-female.mp3
new file mode 100644
index 00000000..aaed4b86
Binary files /dev/null and b/1000-hours/public/audios/bought-us-female.mp3 differ
diff --git a/1000-hours/public/audios/bought-us-male.mp3 b/1000-hours/public/audios/bought-us-male.mp3
new file mode 100644
index 00000000..8d64452e
Binary files /dev/null and b/1000-hours/public/audios/bought-us-male.mp3 differ
diff --git a/1000-hours/public/audios/build-us-female.mp3 b/1000-hours/public/audios/build-us-female.mp3
new file mode 100644
index 00000000..fd4d370c
Binary files /dev/null and b/1000-hours/public/audios/build-us-female.mp3 differ
diff --git a/1000-hours/public/audios/build-us-male.mp3 b/1000-hours/public/audios/build-us-male.mp3
new file mode 100644
index 00000000..503919e8
Binary files /dev/null and b/1000-hours/public/audios/build-us-male.mp3 differ
diff --git a/1000-hours/public/audios/but-us-female.mp3 b/1000-hours/public/audios/but-us-female.mp3
new file mode 100644
index 00000000..c18da3ea
Binary files /dev/null and b/1000-hours/public/audios/but-us-female.mp3 differ
diff --git a/1000-hours/public/audios/but-us-male.mp3 b/1000-hours/public/audios/but-us-male.mp3
new file mode 100644
index 00000000..ee78f866
Binary files /dev/null and b/1000-hours/public/audios/but-us-male.mp3 differ
diff --git a/1000-hours/public/audios/car-us-female.mp3 b/1000-hours/public/audios/car-us-female.mp3
new file mode 100644
index 00000000..613345e4
Binary files /dev/null and b/1000-hours/public/audios/car-us-female.mp3 differ
diff --git a/1000-hours/public/audios/car-us-male.mp3 b/1000-hours/public/audios/car-us-male.mp3
new file mode 100644
index 00000000..b2185786
Binary files /dev/null and b/1000-hours/public/audios/car-us-male.mp3 differ
diff --git a/1000-hours/public/audios/card_us_female.mp3 b/1000-hours/public/audios/card_us_female.mp3
new file mode 100644
index 00000000..e3e5d6e5
Binary files /dev/null and b/1000-hours/public/audios/card_us_female.mp3 differ
diff --git a/1000-hours/public/audios/card_us_male.mp3 b/1000-hours/public/audios/card_us_male.mp3
new file mode 100644
index 00000000..1d1dc553
Binary files /dev/null and b/1000-hours/public/audios/card_us_male.mp3 differ
diff --git a/1000-hours/public/audios/certainly-us-female.mp3 b/1000-hours/public/audios/certainly-us-female.mp3
new file mode 100644
index 00000000..a8e63fad
Binary files /dev/null and b/1000-hours/public/audios/certainly-us-female.mp3 differ
diff --git a/1000-hours/public/audios/certainly-us-male.mp3 b/1000-hours/public/audios/certainly-us-male.mp3
new file mode 100644
index 00000000..8a249b74
Binary files /dev/null and b/1000-hours/public/audios/certainly-us-male.mp3 differ
diff --git a/1000-hours/public/audios/chief-us-female.mp3 b/1000-hours/public/audios/chief-us-female.mp3
new file mode 100644
index 00000000..9dea3c22
Binary files /dev/null and b/1000-hours/public/audios/chief-us-female.mp3 differ
diff --git a/1000-hours/public/audios/chief-us-male.mp3 b/1000-hours/public/audios/chief-us-male.mp3
new file mode 100644
index 00000000..f5c8c609
Binary files /dev/null and b/1000-hours/public/audios/chief-us-male.mp3 differ
diff --git a/1000-hours/public/audios/clause-us-female.mp3 b/1000-hours/public/audios/clause-us-female.mp3
new file mode 100644
index 00000000..850fd7b0
Binary files /dev/null and b/1000-hours/public/audios/clause-us-female.mp3 differ
diff --git a/1000-hours/public/audios/clause-us-male.mp3 b/1000-hours/public/audios/clause-us-male.mp3
new file mode 100644
index 00000000..e9928a2d
Binary files /dev/null and b/1000-hours/public/audios/clause-us-male.mp3 differ
diff --git a/1000-hours/public/audios/comfort-us-female.mp3 b/1000-hours/public/audios/comfort-us-female.mp3
new file mode 100644
index 00000000..9379b290
Binary files /dev/null and b/1000-hours/public/audios/comfort-us-female.mp3 differ
diff --git a/1000-hours/public/audios/comfort-us-male.mp3 b/1000-hours/public/audios/comfort-us-male.mp3
new file mode 100644
index 00000000..96ee6609
Binary files /dev/null and b/1000-hours/public/audios/comfort-us-male.mp3 differ
diff --git a/1000-hours/public/audios/country-us-female.mp3 b/1000-hours/public/audios/country-us-female.mp3
new file mode 100644
index 00000000..6b5f0361
Binary files /dev/null and b/1000-hours/public/audios/country-us-female.mp3 differ
diff --git a/1000-hours/public/audios/country-us-male.mp3 b/1000-hours/public/audios/country-us-male.mp3
new file mode 100644
index 00000000..c34bf443
Binary files /dev/null and b/1000-hours/public/audios/country-us-male.mp3 differ
diff --git a/1000-hours/public/audios/cup-us-female.mp3 b/1000-hours/public/audios/cup-us-female.mp3
new file mode 100644
index 00000000..1144a279
Binary files /dev/null and b/1000-hours/public/audios/cup-us-female.mp3 differ
diff --git a/1000-hours/public/audios/cup-us-male.mp3 b/1000-hours/public/audios/cup-us-male.mp3
new file mode 100644
index 00000000..f6bb57ef
Binary files /dev/null and b/1000-hours/public/audios/cup-us-male.mp3 differ
diff --git a/1000-hours/public/audios/dog-us-female.mp3 b/1000-hours/public/audios/dog-us-female.mp3
new file mode 100644
index 00000000..d239d355
Binary files /dev/null and b/1000-hours/public/audios/dog-us-female.mp3 differ
diff --git a/1000-hours/public/audios/dog-us-male.mp3 b/1000-hours/public/audios/dog-us-male.mp3
new file mode 100644
index 00000000..5efcd541
Binary files /dev/null and b/1000-hours/public/audios/dog-us-male.mp3 differ
diff --git a/1000-hours/public/audios/double-us-female.mp3 b/1000-hours/public/audios/double-us-female.mp3
new file mode 100644
index 00000000..fcf465ad
Binary files /dev/null and b/1000-hours/public/audios/double-us-female.mp3 differ
diff --git a/1000-hours/public/audios/double-us-male.mp3 b/1000-hours/public/audios/double-us-male.mp3
new file mode 100644
index 00000000..6aef71a4
Binary files /dev/null and b/1000-hours/public/audios/double-us-male.mp3 differ
diff --git a/1000-hours/public/audios/drawn-us-female.mp3 b/1000-hours/public/audios/drawn-us-female.mp3
new file mode 100644
index 00000000..08f86707
Binary files /dev/null and b/1000-hours/public/audios/drawn-us-female.mp3 differ
diff --git a/1000-hours/public/audios/drawn-us-male.mp3 b/1000-hours/public/audios/drawn-us-male.mp3
new file mode 100644
index 00000000..37345be4
Binary files /dev/null and b/1000-hours/public/audios/drawn-us-male.mp3 differ
diff --git a/1000-hours/public/audios/eat-us-female.mp3 b/1000-hours/public/audios/eat-us-female.mp3
new file mode 100644
index 00000000..10aa20f8
Binary files /dev/null and b/1000-hours/public/audios/eat-us-female.mp3 differ
diff --git a/1000-hours/public/audios/eat-us-male.mp3 b/1000-hours/public/audios/eat-us-male.mp3
new file mode 100644
index 00000000..3e3baf32
Binary files /dev/null and b/1000-hours/public/audios/eat-us-male.mp3 differ
diff --git a/1000-hours/public/audios/english-us-female.mp3 b/1000-hours/public/audios/english-us-female.mp3
new file mode 100644
index 00000000..1edf12c8
Binary files /dev/null and b/1000-hours/public/audios/english-us-female.mp3 differ
diff --git a/1000-hours/public/audios/english-us-male.mp3 b/1000-hours/public/audios/english-us-male.mp3
new file mode 100644
index 00000000..16d3ad1c
Binary files /dev/null and b/1000-hours/public/audios/english-us-male.mp3 differ
diff --git a/1000-hours/public/audios/far-us-female.mp3 b/1000-hours/public/audios/far-us-female.mp3
new file mode 100644
index 00000000..5f3770e6
Binary files /dev/null and b/1000-hours/public/audios/far-us-female.mp3 differ
diff --git a/1000-hours/public/audios/far-us-male.mp3 b/1000-hours/public/audios/far-us-male.mp3
new file mode 100644
index 00000000..557e92a1
Binary files /dev/null and b/1000-hours/public/audios/far-us-male.mp3 differ
diff --git a/1000-hours/public/audios/father-us-female.mp3 b/1000-hours/public/audios/father-us-female.mp3
new file mode 100644
index 00000000..f29bb9d8
Binary files /dev/null and b/1000-hours/public/audios/father-us-female.mp3 differ
diff --git a/1000-hours/public/audios/father-us-male.mp3 b/1000-hours/public/audios/father-us-male.mp3
new file mode 100644
index 00000000..4c0043dc
Binary files /dev/null and b/1000-hours/public/audios/father-us-male.mp3 differ
diff --git a/1000-hours/public/audios/field-us-female.mp3 b/1000-hours/public/audios/field-us-female.mp3
new file mode 100644
index 00000000..086497b3
Binary files /dev/null and b/1000-hours/public/audios/field-us-female.mp3 differ
diff --git a/1000-hours/public/audios/field-us-male.mp3 b/1000-hours/public/audios/field-us-male.mp3
new file mode 100644
index 00000000..d9da2907
Binary files /dev/null and b/1000-hours/public/audios/field-us-male.mp3 differ
diff --git a/1000-hours/public/audios/flood-us-female.mp3 b/1000-hours/public/audios/flood-us-female.mp3
new file mode 100644
index 00000000..bb8365e1
Binary files /dev/null and b/1000-hours/public/audios/flood-us-female.mp3 differ
diff --git a/1000-hours/public/audios/flood-us-male.mp3 b/1000-hours/public/audios/flood-us-male.mp3
new file mode 100644
index 00000000..ff432d1b
Binary files /dev/null and b/1000-hours/public/audios/flood-us-male.mp3 differ
diff --git a/1000-hours/public/audios/fought-us-female.mp3 b/1000-hours/public/audios/fought-us-female.mp3
new file mode 100644
index 00000000..eada1d03
Binary files /dev/null and b/1000-hours/public/audios/fought-us-female.mp3 differ
diff --git a/1000-hours/public/audios/fought-us-male.mp3 b/1000-hours/public/audios/fought-us-male.mp3
new file mode 100644
index 00000000..e3b73987
Binary files /dev/null and b/1000-hours/public/audios/fought-us-male.mp3 differ
diff --git a/1000-hours/public/audios/guilty-us-female.mp3 b/1000-hours/public/audios/guilty-us-female.mp3
new file mode 100644
index 00000000..3be00dc7
Binary files /dev/null and b/1000-hours/public/audios/guilty-us-female.mp3 differ
diff --git a/1000-hours/public/audios/guilty-us-male.mp3 b/1000-hours/public/audios/guilty-us-male.mp3
new file mode 100644
index 00000000..8045ce77
Binary files /dev/null and b/1000-hours/public/audios/guilty-us-male.mp3 differ
diff --git a/1000-hours/public/audios/guitar-us-female.mp3 b/1000-hours/public/audios/guitar-us-female.mp3
new file mode 100644
index 00000000..65889af1
Binary files /dev/null and b/1000-hours/public/audios/guitar-us-female.mp3 differ
diff --git a/1000-hours/public/audios/guitar-us-male.mp3 b/1000-hours/public/audios/guitar-us-male.mp3
new file mode 100644
index 00000000..062a8334
Binary files /dev/null and b/1000-hours/public/audios/guitar-us-male.mp3 differ
diff --git a/1000-hours/public/audios/gym-us-female.mp3 b/1000-hours/public/audios/gym-us-female.mp3
new file mode 100644
index 00000000..a47b8daf
Binary files /dev/null and b/1000-hours/public/audios/gym-us-female.mp3 differ
diff --git a/1000-hours/public/audios/gym-us-male.mp3 b/1000-hours/public/audios/gym-us-male.mp3
new file mode 100644
index 00000000..4db225f7
Binary files /dev/null and b/1000-hours/public/audios/gym-us-male.mp3 differ
diff --git a/1000-hours/public/audios/happy-us-female.mp3 b/1000-hours/public/audios/happy-us-female.mp3
new file mode 100644
index 00000000..bab48097
Binary files /dev/null and b/1000-hours/public/audios/happy-us-female.mp3 differ
diff --git a/1000-hours/public/audios/happy-us-male.mp3 b/1000-hours/public/audios/happy-us-male.mp3
new file mode 100644
index 00000000..b06857b9
Binary files /dev/null and b/1000-hours/public/audios/happy-us-male.mp3 differ
diff --git a/1000-hours/public/audios/he-us-female.mp3 b/1000-hours/public/audios/he-us-female.mp3
new file mode 100644
index 00000000..fe095936
Binary files /dev/null and b/1000-hours/public/audios/he-us-female.mp3 differ
diff --git a/1000-hours/public/audios/he-us-male.mp3 b/1000-hours/public/audios/he-us-male.mp3
new file mode 100644
index 00000000..373937a8
Binary files /dev/null and b/1000-hours/public/audios/he-us-male.mp3 differ
diff --git a/1000-hours/public/audios/heal-us-female.mp3 b/1000-hours/public/audios/heal-us-female.mp3
new file mode 100644
index 00000000..ca765b00
Binary files /dev/null and b/1000-hours/public/audios/heal-us-female.mp3 differ
diff --git a/1000-hours/public/audios/heal-us-male.mp3 b/1000-hours/public/audios/heal-us-male.mp3
new file mode 100644
index 00000000..3ba2ff77
Binary files /dev/null and b/1000-hours/public/audios/heal-us-male.mp3 differ
diff --git a/1000-hours/public/audios/hello_us_female.mp3 b/1000-hours/public/audios/hello_us_female.mp3
deleted file mode 100644
index e69de29b..00000000
diff --git a/1000-hours/public/audios/hill-us-female.mp3 b/1000-hours/public/audios/hill-us-female.mp3
new file mode 100644
index 00000000..9f1f0d8d
Binary files /dev/null and b/1000-hours/public/audios/hill-us-female.mp3 differ
diff --git a/1000-hours/public/audios/hill-us-male.mp3 b/1000-hours/public/audios/hill-us-male.mp3
new file mode 100644
index 00000000..a51d66e5
Binary files /dev/null and b/1000-hours/public/audios/hill-us-male.mp3 differ
diff --git a/1000-hours/public/audios/hot-us-female.mp3 b/1000-hours/public/audios/hot-us-female.mp3
new file mode 100644
index 00000000..c297a442
Binary files /dev/null and b/1000-hours/public/audios/hot-us-female.mp3 differ
diff --git a/1000-hours/public/audios/hot-us-male.mp3 b/1000-hours/public/audios/hot-us-male.mp3
new file mode 100644
index 00000000..20ec5db4
Binary files /dev/null and b/1000-hours/public/audios/hot-us-male.mp3 differ
diff --git a/1000-hours/public/audios/law-us-female.mp3 b/1000-hours/public/audios/law-us-female.mp3
new file mode 100644
index 00000000..02fa0ee9
Binary files /dev/null and b/1000-hours/public/audios/law-us-female.mp3 differ
diff --git a/1000-hours/public/audios/law-us-male.mp3 b/1000-hours/public/audios/law-us-male.mp3
new file mode 100644
index 00000000..43fadef4
Binary files /dev/null and b/1000-hours/public/audios/law-us-male.mp3 differ
diff --git a/1000-hours/public/audios/leave-us-female.mp3 b/1000-hours/public/audios/leave-us-female.mp3
new file mode 100644
index 00000000..fd587757
Binary files /dev/null and b/1000-hours/public/audios/leave-us-female.mp3 differ
diff --git a/1000-hours/public/audios/leave-us-male.mp3 b/1000-hours/public/audios/leave-us-male.mp3
new file mode 100644
index 00000000..6046ca1c
Binary files /dev/null and b/1000-hours/public/audios/leave-us-male.mp3 differ
diff --git a/1000-hours/public/audios/log-us-female.mp3 b/1000-hours/public/audios/log-us-female.mp3
new file mode 100644
index 00000000..bb9784ed
Binary files /dev/null and b/1000-hours/public/audios/log-us-female.mp3 differ
diff --git a/1000-hours/public/audios/log-us-male.mp3 b/1000-hours/public/audios/log-us-male.mp3
new file mode 100644
index 00000000..298a4d38
Binary files /dev/null and b/1000-hours/public/audios/log-us-male.mp3 differ
diff --git a/1000-hours/public/audios/me-us-female.mp3 b/1000-hours/public/audios/me-us-female.mp3
new file mode 100644
index 00000000..226f9b0c
Binary files /dev/null and b/1000-hours/public/audios/me-us-female.mp3 differ
diff --git a/1000-hours/public/audios/me-us-male.mp3 b/1000-hours/public/audios/me-us-male.mp3
new file mode 100644
index 00000000..5501087a
Binary files /dev/null and b/1000-hours/public/audios/me-us-male.mp3 differ
diff --git a/1000-hours/public/audios/money-us-female.mp3 b/1000-hours/public/audios/money-us-female.mp3
new file mode 100644
index 00000000..f11d5df4
Binary files /dev/null and b/1000-hours/public/audios/money-us-female.mp3 differ
diff --git a/1000-hours/public/audios/money-us-male.mp3 b/1000-hours/public/audios/money-us-male.mp3
new file mode 100644
index 00000000..8fe47f8a
Binary files /dev/null and b/1000-hours/public/audios/money-us-male.mp3 differ
diff --git a/1000-hours/public/audios/myth-us-female.mp3 b/1000-hours/public/audios/myth-us-female.mp3
new file mode 100644
index 00000000..14711774
Binary files /dev/null and b/1000-hours/public/audios/myth-us-female.mp3 differ
diff --git a/1000-hours/public/audios/myth-us-male.mp3 b/1000-hours/public/audios/myth-us-male.mp3
new file mode 100644
index 00000000..30f93b2e
Binary files /dev/null and b/1000-hours/public/audios/myth-us-male.mp3 differ
diff --git a/1000-hours/public/audios/palm-us-female.mp3 b/1000-hours/public/audios/palm-us-female.mp3
new file mode 100644
index 00000000..4a28246e
Binary files /dev/null and b/1000-hours/public/audios/palm-us-female.mp3 differ
diff --git a/1000-hours/public/audios/palm-us-male.mp3 b/1000-hours/public/audios/palm-us-male.mp3
new file mode 100644
index 00000000..c7a24a13
Binary files /dev/null and b/1000-hours/public/audios/palm-us-male.mp3 differ
diff --git a/1000-hours/public/audios/paunch-us-female.mp3 b/1000-hours/public/audios/paunch-us-female.mp3
new file mode 100644
index 00000000..9a27d29d
Binary files /dev/null and b/1000-hours/public/audios/paunch-us-female.mp3 differ
diff --git a/1000-hours/public/audios/paunch-us-male.mp3 b/1000-hours/public/audios/paunch-us-male.mp3
new file mode 100644
index 00000000..bbc7b2fa
Binary files /dev/null and b/1000-hours/public/audios/paunch-us-male.mp3 differ
diff --git a/1000-hours/public/audios/pretty-us-female.mp3 b/1000-hours/public/audios/pretty-us-female.mp3
new file mode 100644
index 00000000..8a17f81d
Binary files /dev/null and b/1000-hours/public/audios/pretty-us-female.mp3 differ
diff --git a/1000-hours/public/audios/pretty-us-male.mp3 b/1000-hours/public/audios/pretty-us-male.mp3
new file mode 100644
index 00000000..fbd2c34a
Binary files /dev/null and b/1000-hours/public/audios/pretty-us-male.mp3 differ
diff --git a/1000-hours/public/audios/responsibility-uk-female.mp3 b/1000-hours/public/audios/responsibility-uk-female.mp3
new file mode 100644
index 00000000..a9673ffd
Binary files /dev/null and b/1000-hours/public/audios/responsibility-uk-female.mp3 differ
diff --git a/1000-hours/public/audios/responsibility-uk-male.mp3 b/1000-hours/public/audios/responsibility-uk-male.mp3
new file mode 100644
index 00000000..cf415fe3
Binary files /dev/null and b/1000-hours/public/audios/responsibility-uk-male.mp3 differ
diff --git a/1000-hours/public/audios/responsibility-us-female.mp3 b/1000-hours/public/audios/responsibility-us-female.mp3
new file mode 100644
index 00000000..4943ba0a
Binary files /dev/null and b/1000-hours/public/audios/responsibility-us-female.mp3 differ
diff --git a/1000-hours/public/audios/responsibility-us-male.mp3 b/1000-hours/public/audios/responsibility-us-male.mp3
new file mode 100644
index 00000000..0f4aa5dc
Binary files /dev/null and b/1000-hours/public/audios/responsibility-us-male.mp3 differ
diff --git a/1000-hours/public/audios/seat-us-female.mp3 b/1000-hours/public/audios/seat-us-female.mp3
new file mode 100644
index 00000000..c6a06716
Binary files /dev/null and b/1000-hours/public/audios/seat-us-female.mp3 differ
diff --git a/1000-hours/public/audios/seat-us-male.mp3 b/1000-hours/public/audios/seat-us-male.mp3
new file mode 100644
index 00000000..7f82b6c8
Binary files /dev/null and b/1000-hours/public/audios/seat-us-male.mp3 differ
diff --git a/1000-hours/public/audios/see-us-female.mp3 b/1000-hours/public/audios/see-us-female.mp3
new file mode 100644
index 00000000..fe27e9b0
Binary files /dev/null and b/1000-hours/public/audios/see-us-female.mp3 differ
diff --git a/1000-hours/public/audios/see-us-male.mp3 b/1000-hours/public/audios/see-us-male.mp3
new file mode 100644
index 00000000..24e83ba6
Binary files /dev/null and b/1000-hours/public/audios/see-us-male.mp3 differ
diff --git a/1000-hours/public/audios/she-us-female.mp3 b/1000-hours/public/audios/she-us-female.mp3
new file mode 100644
index 00000000..5cd185a9
Binary files /dev/null and b/1000-hours/public/audios/she-us-female.mp3 differ
diff --git a/1000-hours/public/audios/she-us-male.mp3 b/1000-hours/public/audios/she-us-male.mp3
new file mode 100644
index 00000000..cf2441cb
Binary files /dev/null and b/1000-hours/public/audios/she-us-male.mp3 differ
diff --git a/1000-hours/public/audios/sit-us-female.mp3 b/1000-hours/public/audios/sit-us-female.mp3
new file mode 100644
index 00000000..b8c830b3
Binary files /dev/null and b/1000-hours/public/audios/sit-us-female.mp3 differ
diff --git a/1000-hours/public/audios/sit-us-male.mp3 b/1000-hours/public/audios/sit-us-male.mp3
new file mode 100644
index 00000000..11c15b53
Binary files /dev/null and b/1000-hours/public/audios/sit-us-male.mp3 differ
diff --git a/1000-hours/public/audios/son-us-female.mp3 b/1000-hours/public/audios/son-us-female.mp3
new file mode 100644
index 00000000..efdd4b83
Binary files /dev/null and b/1000-hours/public/audios/son-us-female.mp3 differ
diff --git a/1000-hours/public/audios/son-us-male.mp3 b/1000-hours/public/audios/son-us-male.mp3
new file mode 100644
index 00000000..d9080b97
Binary files /dev/null and b/1000-hours/public/audios/son-us-male.mp3 differ
diff --git a/1000-hours/public/audios/start-us-female.mp3 b/1000-hours/public/audios/start-us-female.mp3
new file mode 100644
index 00000000..67eda5b6
Binary files /dev/null and b/1000-hours/public/audios/start-us-female.mp3 differ
diff --git a/1000-hours/public/audios/start-us-male.mp3 b/1000-hours/public/audios/start-us-male.mp3
new file mode 100644
index 00000000..eb006881
Binary files /dev/null and b/1000-hours/public/audios/start-us-male.mp3 differ
diff --git a/1000-hours/public/audios/sun-us-female.mp3 b/1000-hours/public/audios/sun-us-female.mp3
new file mode 100644
index 00000000..efdd4b83
Binary files /dev/null and b/1000-hours/public/audios/sun-us-female.mp3 differ
diff --git a/1000-hours/public/audios/sun-us-male.mp3 b/1000-hours/public/audios/sun-us-male.mp3
new file mode 100644
index 00000000..d9080b97
Binary files /dev/null and b/1000-hours/public/audios/sun-us-male.mp3 differ
diff --git a/1000-hours/public/audios/symbol-us-female.mp3 b/1000-hours/public/audios/symbol-us-female.mp3
new file mode 100644
index 00000000..648cb51b
Binary files /dev/null and b/1000-hours/public/audios/symbol-us-female.mp3 differ
diff --git a/1000-hours/public/audios/symbol-us-male.mp3 b/1000-hours/public/audios/symbol-us-male.mp3
new file mode 100644
index 00000000..16e38cca
Binary files /dev/null and b/1000-hours/public/audios/symbol-us-male.mp3 differ
diff --git a/1000-hours/public/audios/thought-us-female.mp3 b/1000-hours/public/audios/thought-us-female.mp3
new file mode 100644
index 00000000..7c9e490e
Binary files /dev/null and b/1000-hours/public/audios/thought-us-female.mp3 differ
diff --git a/1000-hours/public/audios/thought-us-male.mp3 b/1000-hours/public/audios/thought-us-male.mp3
new file mode 100644
index 00000000..09d2b81a
Binary files /dev/null and b/1000-hours/public/audios/thought-us-male.mp3 differ
diff --git a/1000-hours/public/audios/tree-us-female.mp3 b/1000-hours/public/audios/tree-us-female.mp3
new file mode 100644
index 00000000..39be8922
Binary files /dev/null and b/1000-hours/public/audios/tree-us-female.mp3 differ
diff --git a/1000-hours/public/audios/tree-us-male.mp3 b/1000-hours/public/audios/tree-us-male.mp3
new file mode 100644
index 00000000..a85e8e74
Binary files /dev/null and b/1000-hours/public/audios/tree-us-male.mp3 differ
diff --git a/1000-hours/public/audios/unexpectedly-us-female.mp3 b/1000-hours/public/audios/unexpectedly-us-female.mp3
new file mode 100644
index 00000000..45362bb0
Binary files /dev/null and b/1000-hours/public/audios/unexpectedly-us-female.mp3 differ
diff --git a/1000-hours/public/audios/unexpectedly-us-male.mp3 b/1000-hours/public/audios/unexpectedly-us-male.mp3
new file mode 100644
index 00000000..d3052225
Binary files /dev/null and b/1000-hours/public/audios/unexpectedly-us-male.mp3 differ
diff --git a/1000-hours/public/audios/us/hello-us-female.mp3 b/1000-hours/public/audios/us/hello-us-female.mp3
deleted file mode 100644
index 2df5093a..00000000
Binary files a/1000-hours/public/audios/us/hello-us-female.mp3 and /dev/null differ
diff --git a/1000-hours/public/audios/us/hello-us-male.mp3 b/1000-hours/public/audios/us/hello-us-male.mp3
deleted file mode 100644
index 43141652..00000000
Binary files a/1000-hours/public/audios/us/hello-us-male.mp3 and /dev/null differ
diff --git a/1000-hours/public/audios/wasp-us-female.mp3 b/1000-hours/public/audios/wasp-us-female.mp3
new file mode 100644
index 00000000..23f66e2e
Binary files /dev/null and b/1000-hours/public/audios/wasp-us-female.mp3 differ
diff --git a/1000-hours/public/audios/wasp-us-male.mp3 b/1000-hours/public/audios/wasp-us-male.mp3
new file mode 100644
index 00000000..e965aecc
Binary files /dev/null and b/1000-hours/public/audios/wasp-us-male.mp3 differ
diff --git a/1000-hours/public/audios/watch-us-female.mp3 b/1000-hours/public/audios/watch-us-female.mp3
new file mode 100644
index 00000000..f6ba9c38
Binary files /dev/null and b/1000-hours/public/audios/watch-us-female.mp3 differ
diff --git a/1000-hours/public/audios/watch-us-male.mp3 b/1000-hours/public/audios/watch-us-male.mp3
new file mode 100644
index 00000000..dcc8bac4
Binary files /dev/null and b/1000-hours/public/audios/watch-us-male.mp3 differ
diff --git a/1000-hours/public/audios/word-us-female.mp3 b/1000-hours/public/audios/word-us-female.mp3
deleted file mode 100644
index 7f4932ae..00000000
Binary files a/1000-hours/public/audios/word-us-female.mp3 and /dev/null differ
diff --git a/1000-hours/public/audios/word-us-male.mp3 b/1000-hours/public/audios/word-us-male.mp3
deleted file mode 100644
index 5d922c91..00000000
Binary files a/1000-hours/public/audios/word-us-male.mp3 and /dev/null differ
diff --git a/1000-hours/public/audios/world-us-female.mp3 b/1000-hours/public/audios/world-us-female.mp3
deleted file mode 100644
index 5f08eb29..00000000
Binary files a/1000-hours/public/audios/world-us-female.mp3 and /dev/null differ
diff --git a/1000-hours/public/audios/world-us-male.mp3 b/1000-hours/public/audios/world-us-male.mp3
deleted file mode 100644
index 98941cd2..00000000
Binary files a/1000-hours/public/audios/world-us-male.mp3 and /dev/null differ
diff --git a/1000-hours/public/audios/young-us-female.mp3 b/1000-hours/public/audios/young-us-female.mp3
new file mode 100644
index 00000000..42b07865
Binary files /dev/null and b/1000-hours/public/audios/young-us-female.mp3 differ
diff --git a/1000-hours/public/audios/young-us-male.mp3 b/1000-hours/public/audios/young-us-male.mp3
new file mode 100644
index 00000000..5e0e79d5
Binary files /dev/null and b/1000-hours/public/audios/young-us-male.mp3 differ
diff --git a/1000-hours/public/images/vowels-mouth-shape-i.svg b/1000-hours/public/images/vowels-mouth-shape-i.svg
new file mode 100644
index 00000000..5bc67cac
--- /dev/null
+++ b/1000-hours/public/images/vowels-mouth-shape-i.svg
@@ -0,0 +1,28 @@
+
+
\ No newline at end of file
diff --git a/1000-hours/public/images/vowels-mouth-shape-ə.svg b/1000-hours/public/images/vowels-mouth-shape-ə.svg
new file mode 100644
index 00000000..f72ae262
--- /dev/null
+++ b/1000-hours/public/images/vowels-mouth-shape-ə.svg
@@ -0,0 +1,28 @@
+
+
\ No newline at end of file
diff --git a/1000-hours/public/images/vowels-mouth-shape-ɪ-i.svg b/1000-hours/public/images/vowels-mouth-shape-ɪ-i.svg
index 8d1298f4..e75c1bcf 100644
--- a/1000-hours/public/images/vowels-mouth-shape-ɪ-i.svg
+++ b/1000-hours/public/images/vowels-mouth-shape-ɪ-i.svg
@@ -2,11 +2,11 @@