song name

.serena/memories/audio_filename_improvements.md

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+# Audio File Naming and Caption Improvements
+
+## Changes Made
+
+### 1. Frontend (public/script.ts)
+- Added `performer` field to `/api/convert` request
+- Now sends artist name along with title and other metadata
+
+### 2. Backend (src/server.ts) 
+- Updated `/api/convert` endpoint to accept `performer` parameter
+- Modified filename generation to include artist name:
+  - Format: `{artist} - {title}.mp3` (when artist available)
+  - Fallback: `{title}.mp3` (when no artist)
+  - Limited artist name to 20 chars, title to 30 chars for safe filenames
+
+### 3. Bot (src/bot.ts)
+- Removed "🎵 ..." text from audio message captions
+- Changed `caption: \`🎵 ${title}\`` to `caption: undefined`
+- Audio files now show clean filename without emoji prefix
+
+## Result
+Audio files now have proper names like "Artist Name - Song Title.mp3" and no caption text, making them cleaner in Telegram chats.