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README.md

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+---
+dataset_info:
+  features:
+  - name: text
+    dtype: string
+  - name: phonemes_ipa
+    dtype: string
+  - name: phoneme_tokens
+    dtype: string
+  - name: mixed_text
+    dtype: string
+  - name: xcodec2_tokens
+    dtype: string
+  - name: to_convert
+    dtype: string
+  - name: sequence
+    dtype: string
+  splits:
+  - name: train
+    num_bytes: unknown
+    num_examples: 1421568
+  download_size: unknown
+  dataset_size: unknown
+---
+
+# Stage 2 Mixed Text/Phoneme TTS Dataset
+
+This dataset contains mixed text/phoneme sequences for TTS training with curriculum learning.
+
+## Curriculum Learning
+
+The probability of converting words to phonemes increases over the dataset:
+- **Start**: p = 0.3 (more text, less phonemes)
+- **End**: p = 1.0 (all phonemes)  
+- **Transition**: Linear over 500,000 rows
+
+Each row uses p(i) for ALL its words/spaces, then i increments for the next row.
+
+## Features
+
+| Column | Description |
+|--------|-------------|
+| `text` | Plain text (all words) |
+| `phonemes_ipa` | IPA notation of all phonemes |
+| `phoneme_tokens` | All phonemes as `<\|ph_xxxx\|>` hex tokens |
+| `mixed_text` | Mixed text and phoneme tokens |
+| `xcodec2_tokens` | Full audio as XCodec2 tokens |
+| `to_convert` | "text and phonemes" / "phonemes" / "text" |
+| `sequence` | Full training sequence with markers |
+
+## Training Format
+
+```
+Convert the {to_convert} to speech: <|start_phon_gen|>{mixed_text}<|end_phon_gen|><|SPEECH_GENERATION_START|>{xcodec2_tokens}<|SPEECH_GENERATION_END|>
+```
+
+## Processing Info
+
+- Source: AAdonis/multilingual_audio_alignments (english)
+- Index range: 0 to 499541
+- Samples per audio: 3
+- Total samples: 1421568
+- Final global row counter: 1421568
+- Final probability: 1.000