From 0e72cac85dd7fd91d9ef73b6c3d1dcf99c085685 Mon Sep 17 00:00:00 2001
From: xiaolai <lixiaolai@gmail.com>
Date: Fri, 29 Mar 2024 08:28:34 +0800
Subject: [PATCH] keep updated

---
 1000-hours/.vitepress/config.mts              |   4 +
 .../public/audios/us/class-us-female.mp3      | Bin 0 -> 10080 bytes
 1000-hours/public/audios/us/class-us-male.mp3 | Bin 0 -> 9936 bytes
 .../jupyter-notebooks/class-us-female.mp3     | Bin 0 -> 10080 bytes
 .../jupyter-notebooks/class-us-male.mp3       | Bin 0 -> 9936 bytes
 .../edge-tts-valcab-pronounciation.ipynb      |   6 +-
 .../us_edge-tts-valcab-pronounciation.ipynb   | 223 ------------------
 .../sounds-of-american-english/2.1-vowels.md  |   4 +-
 .../sounds-of-american-english/2.1.10-ɤ.md    |   9 +
 .../sounds-of-american-english/2.2.3-td.md    |   2 +-
 .../sounds-of-american-english/2.2.4-kg.md    |   4 +-
 11 files changed, 22 insertions(+), 230 deletions(-)
 create mode 100644 1000-hours/public/audios/us/class-us-female.mp3
 create mode 100644 1000-hours/public/audios/us/class-us-male.mp3
 create mode 100644 1000-hours/public/jupyter-notebooks/class-us-female.mp3
 create mode 100644 1000-hours/public/jupyter-notebooks/class-us-male.mp3
 delete mode 100644 1000-hours/public/jupyter-notebooks/us_edge-tts-valcab-pronounciation.ipynb
 create mode 100644 1000-hours/sounds-of-american-english/2.1.10-ɤ.md

diff --git a/1000-hours/.vitepress/config.mts b/1000-hours/.vitepress/config.mts
index 68e93739..1adbaed2 100644
--- a/1000-hours/.vitepress/config.mts
+++ b/1000-hours/.vitepress/config.mts
@@ -163,6 +163,10 @@ export default withMermaid(
                         text: "2.1.9. aɪ... əʊ",
                         link: "/sounds-of-american-english/2.1.9-aɪ",
                       },
+                      {
+                        text: "2.1.10. ɤ",
+                        link: "/sounds-of-american-english/2.1.10-ɤ",
+                      },
                     ]
                   },
                   {
diff --git a/1000-hours/public/audios/us/class-us-female.mp3 b/1000-hours/public/audios/us/class-us-female.mp3
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diff --git a/1000-hours/public/audios/us/class-us-male.mp3 b/1000-hours/public/audios/us/class-us-male.mp3
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diff --git a/1000-hours/public/jupyter-notebooks/edge-tts-valcab-pronounciation.ipynb b/1000-hours/public/jupyter-notebooks/edge-tts-valcab-pronounciation.ipynb
index b467a068..aad18884 100644
--- a/1000-hours/public/jupyter-notebooks/edge-tts-valcab-pronounciation.ipynb
+++ b/1000-hours/public/jupyter-notebooks/edge-tts-valcab-pronounciation.ipynb
@@ -197,7 +197,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 17,
+   "execution_count": 1,
    "id": "cecefa85-b37d-457e-9e99-e582dabdfb9f",
    "metadata": {},
    "outputs": [
@@ -205,6 +205,8 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
+      "pygame 2.5.2 (SDL 2.28.3, Python 3.12.1)\n",
+      "Hello from the pygame community. https://www.pygame.org/contribute.html\n",
       "Files created!\n"
      ]
     }
@@ -216,7 +218,7 @@
     "import edge_tts\n",
     "import pygame\n",
     "\n",
-    "TEXT = \"I am,He is,She is,They are,Go away,Do all,Do it,Throw it\"\n",
+    "TEXT = \"class\"\n",
     "Wordlist = TEXT.split(\",\")\n",
     "\n",
     "for w in Wordlist:\n",
diff --git a/1000-hours/public/jupyter-notebooks/us_edge-tts-valcab-pronounciation.ipynb b/1000-hours/public/jupyter-notebooks/us_edge-tts-valcab-pronounciation.ipynb
deleted file mode 100644
index 3144b956..00000000
--- a/1000-hours/public/jupyter-notebooks/us_edge-tts-valcab-pronounciation.ipynb
+++ /dev/null
@@ -1,223 +0,0 @@
-{
- "cells": [
-  {
-   "cell_type": "markdown",
-   "id": "b94f103d-ac43-4d13-83cb-eb5090220881",
-   "metadata": {
-    "jupyter": {
-     "source_hidden": true
-    }
-   },
-   "source": [
-    "# EdgeTTS\n",
-    "\n",
-    "https://github.com/rany2/edge-tts\n",
-    "\n",
-    "edge-tts is a Python module that allows you to use Microsoft Edge's online text-to-speech service from within your Python code or using the provided edge-tts or edge-playback command."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "77deb08f-fec3-4327-b2f9-1c893aacaddc",
-   "metadata": {
-    "scrolled": true
-   },
-   "outputs": [],
-   "source": [
-    "!pip install edge-tts\n",
-    "!pip install pygame"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 1,
-   "id": "9aad6634-e833-4ec4-b285-84e051329712",
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "pygame 2.5.2 (SDL 2.28.3, Python 3.12.1)\n",
-      "Hello from the pygame community. https://www.pygame.org/contribute.html\n",
-      "Files created!\n"
-     ]
-    }
-   ],
-   "source": [
-    "import asyncio\n",
-    "import edge_tts\n",
-    "import pygame\n",
-    "\n",
-    "TEXT = \"\"\"\n",
-    "serendipity\n",
-    "\"\"\"\n",
-    "\n",
-    "Wordlist = TEXT.split(\",\")\n",
-    "\n",
-    "for w in Wordlist:\n",
-    "  for VOICE in ['en-US-GuyNeural', 'en-US-JennyNeural']:\n",
-    "    w = w.strip()\n",
-    "    OUTPUT_FILE = f\"{w.replace(' ', '-').replace('?', '')}-{VOICE.replace('en-', '').replace('GuyNeural', 'guy').replace('JennyNeural', 'jen').lower()}.mp3\"\n",
-    "    communicate = edge_tts.Communicate(w, VOICE)\n",
-    "    await communicate.save(OUTPUT_FILE) \n",
-    "\n",
-    "print(\"Files created!\") "
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "1e54069c-db63-45ba-86e8-726730b19255",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "import asyncio\n",
-    "import edge_tts\n",
-    "import pygame\n",
-    "\n",
-    "TEXT = \"Jane,dramatic,young,girl,loves,to,read,books,at,leisure,in,rooms,or,play,on,a,sunny,day,outdoor,here,and,there,under,the,trees,with,boys,She,vowed,to,buy,a,red,ear,dog,She,thought,it,was,unique,for,sure,Now,she,feeds,it,dough,nuts,and,cheese,bar\"\n",
-    "Wordlist = TEXT.split(\",\")\n",
-    "\n",
-    "for w in Wordlist:\n",
-    "  for VOICE in ['zh-CN-YunxiNeural', 'zh-CN-XiaoxiaoNeural']:\n",
-    "    w = w.strip()\n",
-    "    OUTPUT_FILE = f\"{w}-{VOICE.replace('YunxiNeural', 'male').replace('XiaoxiaoNeural', 'female').lower()}.mp3\"\n",
-    "    communicate = edge_tts.Communicate(w, VOICE)\n",
-    "    await communicate.save(OUTPUT_FILE) \n",
-    "\n",
-    "print(\"Files created!\") "
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "09d5ab47-5807-4ded-a8b9-45277831d425",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# VOICE = \"en-US-GuyNeural\" # Male\n",
-    "# VOICE = \"en-US-AnaNeural\" # Female\n",
-    "# VOICE = \"en-US-AndrewNeural\" # Male\n",
-    "# VOICE = \"en-US-AriaNeural\" # Female\n",
-    "# VOICE = \"en-US-AvaNeural\" # Female\n",
-    "# VOICE = \"en-US-BrianNeural\" # Male\n",
-    "# VOICE = \"en-US-ChristopherNeural\" # Male\n",
-    "# VOICE = \"en-US-EmmaNeural\" # Female\n",
-    "# VOICE = \"en-US-EricNeural\" # Male\n",
-    "# VOICE = \"en-US-GuyNeural\" # Male\n",
-    "# VOICE = \"en-US-JennyNeural\" # Female\n",
-    "# VOICE = \"en-US-MichelleNeural\" # Female\n",
-    "# VOICE = \"en-US-RogerNeural\" # Male\n",
-    "# VOICE = \"en-US-SteffanNeural\" # Male\n",
-    "# VOICE = \"en-GB-LibbyNeural\" # Female\n",
-    "# VOICE = \"en-GB-MaisieNeural\" # Female\n",
-    "# VOICE = \"en-GB-RyanNeural\" # Male\n",
-    "# VOICE = \"en-GB-SoniaNeural\" # Female\n",
-    "# VOICE = \"en-GB-ThomasNeural\" # Male\n",
-    "# VOICE = \"en-AU-NatashaNeural\" # Female\n",
-    "# VOICE = \"en-AU-WilliamNeural\" # Male\n",
-    "# VOICE = \"en-CA-ClaraNeural\" # Female\n",
-    "# VOICE = \"en-CA-LiamNeural\" # Male\n"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "862f0948",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "pygame.mixer.init()\n",
-    "pygame.mixer.music.load(OUTPUT_FILE)\n",
-    "pygame.mixer.music.play()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 1,
-   "id": "00939422-fbf9-4842-b82a-b6106624c075",
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "pygame 2.5.2 (SDL 2.28.3, Python 3.11.5)\n",
-      "Hello from the pygame community. https://www.pygame.org/contribute.html\n",
-      "Files created!\n"
-     ]
-    }
-   ],
-   "source": [
-    "import asyncio\n",
-    "import edge_tts\n",
-    "import pygame\n",
-    "\n",
-    "TEXT = \"a,and,at,bar,books,boys,buy,cheese,day,dog,dough,dramatic,ear,feeds,for,girl,here,in,it,Jane,leisure,loves,Now,nuts,on,or,outdoor,play,read,red,rooms,She,sunny,sure,the,there,thought,to,trees,under,unique,vowed,was,with,young\"\n",
-    "Wordlist = TEXT.split(\",\")\n",
-    "\n",
-    "for w in Wordlist:\n",
-    "  for VOICE in ['en-US-GuyNeural', 'en-US-JennyNeural', 'en-GB-RyanNeural', 'en-GB-SoniaNeural']:\n",
-    "    w = w.strip()\n",
-    "    OUTPUT_FILE = f\"{w}-{VOICE.replace('GuyNeural', 'Guy-Male').replace('JennyNeural', 'Jenny-Female').replace('RyanNeural', 'Ryan-Male').replace('SoniaNeural', 'Sonia-Female').lower()}.mp3\"\n",
-    "    communicate = edge_tts.Communicate(w, VOICE)\n",
-    "    await communicate.save(OUTPUT_FILE) \n",
-    "\n",
-    "print(\"Files created!\") "
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "93f68a91-7e6b-45ef-932e-533b695e4ac1",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# ru-RU-DmitryNeural\n",
-    "# ko-KR-InJoonNeural"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "474c3f39-11ed-4d0a-b039-63df8b270044",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "import os\n",
-    "print(os.getcwd())"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "2128587f-e6c8-488d-8c40-6c958b9c735e",
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
-   "language": "python",
-   "name": "python3"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.12.1"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 5
-}
diff --git a/1000-hours/sounds-of-american-english/2.1-vowels.md b/1000-hours/sounds-of-american-english/2.1-vowels.md
index 9078e824..07801b3f 100644
--- a/1000-hours/sounds-of-american-english/2.1-vowels.md
+++ b/1000-hours/sounds-of-american-english/2.1-vowels.md
@@ -1,8 +1,8 @@
 # 2.1. 元音（Vowels）
 
-英文总计 6 个基础元音，分别是 `ʌ`、`e`、`ə`、`ɪ`、`ʊ`、`ɒ` —— 这 6 个短元音就好像是 “根” 一样。剩下的十几个元音要么是它们略有变化的更长版本，即，长元音  ——  `ɑː, æ, əː, iː, uː, ɔː`；要么是它们的组合版本，即，双元音 —— `aɪ, eɪ, ɔɪ, aʊ, oʊ, er, ɪr, ʊr`。
+英文总计 6 个基础元音，分别是 `ʌ`、`e`、`ə`、`ɪ`、`ʊ`、`ɒ` —— 这 6 个短元音就好像是 “根” 一样。剩下的十几个元音要么是它们略有变化的更长版本，即，长元音  ——  `ɑː, æ, ɝː,  i, iː, uː, ɔː`；要么是它们的组合版本，即，双元音 —— `aɪ, eɪ, ɔɪ, aʊ, oʊ, er, ɪr, ʊr`。
 
-In English, there are 6 basic vowels: `ʌ`, `e`, `ə`, `ɪ`, `ʊ`, and `ɒ`. Think of these 6 short vowels like the *roots* of a tree. The remaining more than a dozen vowels are either slightly modified, longer versions of these - the *long* vowels, which are `ɑː, æ, əː, iː, uː, ɔː`; or, they are combinations of these basic sounds, known as *diphthongs* - `aɪ, eɪ, ɔɪ, aʊ, oʊ, er, ɪr, ʊr`.
+In English, there are 6 basic vowels: `ʌ`, `e`, `ə`, `ɪ`, `ʊ`, and `ɒ`. Think of these 6 short vowels like the *roots* of a tree. The remaining more than a dozen vowels are either slightly modified, longer versions of these - the *long* vowels, which are `ɑː, æ, ɝː, i, iː, uː, ɔː`; or, they are combinations of these basic sounds, known as *diphthongs* - `aɪ, eɪ, ɔɪ, aʊ, oʊ, er, ɪr, ʊr`.
 
 > 在英式英语中，`er, ɪr, ʊr` 这 3 个双元音分别读作 `eə, ɪə, ʊə`。
 >
diff --git a/1000-hours/sounds-of-american-english/2.1.10-ɤ.md b/1000-hours/sounds-of-american-english/2.1.10-ɤ.md
new file mode 100644
index 00000000..8eff4bdd
--- /dev/null
+++ b/1000-hours/sounds-of-american-english/2.1.10-ɤ.md
@@ -0,0 +1,9 @@
+# 2.1.10. `ɤ`
+
+人类的语音在最底层是相通的 —— 最明显的例证就是所有的语言都一样，不仅都以元音为核心，并且，都有大致相同的基础元音音素，比如 `ɑ`、`i`、`ʊ`、`e`、`ɔ`…… 日文就恰好只有这五个母音。英文还另外有一个 `ə`；而韩文比英文还要多出一个 `ɤ`<span class="speak-word-inline" data-audio-other="/audios/us/Close-mid_back_unrounded_vowel.ogg.mp3"></span>（韩文字符为 `ᅳ`） —— 这个音中文也有，比如，在 “思念” 这个词中， “思”（`sī`）的韵母就是这个音。
+
+Human speech, at its core, is universal - the clearest example being that all languages share certain fundamental tenets. Every language places vowels at their heart and maintains a similar basic vowel phonemes such as `ɑ`, `i`, `ʊ`, `e`, `ɔ`, amongst others. Take Japanese for instance; it uses precisely these five vowels only. English includes one more: `ə`. Korean even outpaces English by adding another one —`ɤ`<span class="speak-word-inline" data-audio-other="/audios/us/Close-mid_back_unrounded_vowel.ogg.mp3"></span> (represented in Hangul as `ᅳ`). Interestingly enough you can find this sound in Mandarin Chinese too — like in `sī` of "思念" `sīniàn`, meaning to miss or remember.
+
+虽然英文的音标列表里并没有收录 `ɤ` 这个音，可实际上，你试试就知道了：`d` 被读作 `dɤ`，`g` 被读作 `gɤ` —— 其中的 `ɤ` 很轻很短；同样，`t` 实际上被读作 `tɤ`，`k` 被读作 `kɤ` —— 其中的 `ɤ` 没有气流振动。
+
+Even though the phonetic symbol `ɤ` isn't included in English phonetic chart, you'll notice something interesting if you try it out: the letter `d` is actually pronounced as `dɤ`, and `g` is pronounced as `gɤ`. Here, the `ɤ` sound is very light and brief. Similarly, `t` is actually pronounced as `tɤ`, and `k` is pronounced as `kɤ`, with the `ɤ` not involving any airflow vibration.
\ No newline at end of file
diff --git a/1000-hours/sounds-of-american-english/2.2.3-td.md b/1000-hours/sounds-of-american-english/2.2.3-td.md
index 38122ecb..3e2c6474 100644
--- a/1000-hours/sounds-of-american-english/2.2.3-td.md
+++ b/1000-hours/sounds-of-american-english/2.2.3-td.md
@@ -14,7 +14,7 @@ In Mandarin Chinese, the starting position of the tongue tip for the `t` and `d`
 
 For Chinese speakers, it's a pretty tough to correct at first because the tongue tip instinctively goes to the teeth, not the *alveolar ridge*. It can only be corrected through intense and frequent practice to build a new habit.
 
-另外，就好像 `p/b` 在发音的时候会自然带着一个很轻的 `ʊ` 一样，`t/d` 也会自然带着一个很轻的元音，不过，不是 `ə` 而是 `ɤ`<span class="speak-word-inline" data-audio-other="/audios/us/Close-mid_back_unrounded_vowel.ogg.mp3"></span> —— 之前提到过，相当于中文里 “思念” 的 “思”（`sī`）的韵母。
+另外，就好像 `p/b` 在发音的时候会自然带着一个很轻的 `ʊ` 一样，`t/d` 也会自然带着一个很轻的元音，不过，不是 `ə` 而是 `ɤ`<span class="speak-word-inline" data-audio-other="/audios/us/Close-mid_back_unrounded_vowel.ogg.mp3"></span> —— 之前提到过，相当于中文里 “思念” 的 “思”（`sī`）的韵母（[2.1.10](2.1.10-ɤ)）。
 
 Additionally, just as the `p` and `b` sound naturally carries a slight `ʊ` sound in its pronunciation, the `t` and `d` sound also carries a light vowel sound. But instead of 'ə', it's `ɤ`<span class="speak-word-inline" data-audio-other="/audios/us/Close-mid_back_unrounded_vowel.ogg.mp3"></span> - as previously mentioned, this is equivalent to the vowel in the Chinese word for 思, which is `sī.`
 
diff --git a/1000-hours/sounds-of-american-english/2.2.4-kg.md b/1000-hours/sounds-of-american-english/2.2.4-kg.md
index 0767a879..3b558fc3 100644
--- a/1000-hours/sounds-of-american-english/2.2.4-kg.md
+++ b/1000-hours/sounds-of-american-english/2.2.4-kg.md
@@ -10,6 +10,6 @@ Firstly, to pronounce these two sounds, the back part of the tongue must be rais
 
 ![articulator-tongue-tip-kg](/images/articulator-tongue-tip-kg.svg)
 
-就好像 `t/d` 在发音的时候一样，`k/g` 也会自然带着一个很轻的元音，再一次，不是 `ə` 而是 `ɤ`<span class="speak-word-inline" data-audio-other="/audios/us/Close-mid_back_unrounded_vowel.ogg.mp3"></span>，但只有气流通过，没有声带振动。
+就好像 `t/d` 在发音的时候一样，`k/g` 也会自然带着一个很轻的元音，再一次，不是 `ə` 而是 `ɤ`<span class="speak-word-inline" data-audio-other="/audios/us/Close-mid_back_unrounded_vowel.ogg.mp3"></span>，但只有气流通过，没有声带振动。请仔细体会一下 *class* 的发音：`/klæs/`<span class="speak-word-inline" data-audio-us-male="/audios/us/class-us-male.mp3" data-audio-us-female="/audios/us/class-us-female.mp3"></span> —— 其中 `ɤ` 的音色，虽然轻微但也明显。
 
-Moreover, much like the `t/d` sounds, `k/g` also naturally carries a slight vowel sound. Once again, it's not `ə` but `ɤ`<span class="speak-word-inline" data-audio-other="/audios/us/Close-mid_back_unrounded_vowel.ogg.mp3"></span>, where the air is flowing through without any vocal cord vibration.
+Moreover, much like the `t/d` sounds, `k/g` also naturally carries a slight vowel sound. Once again, it's not `ə` but `ɤ`<span class="speak-word-inline" data-audio-other="/audios/us/Close-mid_back_unrounded_vowel.ogg.mp3"></span>, where the air is flowing through without any vocal cord vibration. Pay close attention to the pronunciation of class: `/klæs/`<span class="speak-word-inline" data-audio-us-male="/audios/us/class-us-male.mp3" data-audio-us-female="/audios/us/class-us-female.mp3"></span>. The sound ɤ is subtle yet noticeable.