Update text_transcript/README.md

text_transcript/README.md

@@ -1,13 +1,31 @@
 # Text transcript 
 
-This folder includes the text transcript files of each session, e.g., G1S1F_transcript.txt <bf>
-The files are the output from ELAN software, which was used for text transcription. 
+This folder contains a transcript file for each session (e.g., `G1S1F_transcript.txt`). 
 
-Format: <bf>
-[Participant ID] [Start time (ms)] [End time (ms)] [Text in Japanese]
+The files were exported from ELAN, the software used for transcription, and are UTF-8-encoded, tab-delimited text files consisting of the following four columns:
 
+`[Participant ID] [Start time (seconds)] [End time (seconds)] [Japanese transcription]`
 
-The transcription followed the rules below.  
+The transcription followed the rules below.
 
-1) Utterance unit is IPU(Inter Pausal Unit) with 200ms interval.
-    
+1. Utterance segments were identified with reference to the audio waveform. When a silent interval of 200 ms or longer was observed between non-silent portions, the portions before and after the silence were treated as separate utterance segments.
+
+2. Non-silent portions shorter than 30 ms were not identified as utterance segments.
+
+3. Spoken words were transcribed as uttered, including speech errors.
+
+4. Exhalations, inhalations, breathing sounds that could not be identified as either, and laughter were represented in the transcripts as `《呼気》`(exhalation), `《吸気》`(inhalation), `《呼吸》`(breathing), and `《笑い》`(laughter), respectively.
+
+5. Breathing sounds (`《呼気》`, `《吸気》`, and `《呼吸》`) were generally treated as segments separate from spoken words. However, when the portions of speech before and after a breathing sound were less than 200 ms apart and were identified as a single utterance segment, the intervening breathing sound was included in the same segment.
+
+6. When laughter was accompanied by intelligible speech, the speech was transcribed together with `《笑い》` in the same segment. When laughter was not accompanied by intelligible speech, only `《笑い》` was recorded.
+
+7. Unintelligible speech was indicated using curly brackets`{ }`.
+
+8. Each sentence ended with the Japanese period `。`, except that the question mark `？` was used for utterances with rising intonation. Japanese commas `、` were inserted where appropriate, taking the content and pauses into account.
+
+9. Kanji use was generally limited to the jōyō kanji (常用漢字).
+
+10. Kanji, hiragana, and katakana were used in preference to alphabetic spelling. Exceptions were made for proper nouns and cases in which the speaker intentionally used English or another foreign language.
+
+11. Kanji, hiragana, katakana, and numerals were written using full-width, multibyte characters, whereas alphabetic characters were written using half-width, single-byte ASCII characters.