AI Music to Text & Timestamp Generator
Convert song audio into lyrics and text with millisecond word-level timestamps. Instantly export to LRC, JSON, and SRT subtitle files powered by AI forced alignment.
Music Audio Transcription
Upload your audio file to generate lyrics with word-level timestamps.
Click to upload or drag & drop audio here
Supports MP3, WAV, M4A, FLAC, OGG, WebM (up to 30MB)
Word-Level Precision
Millisecond timestamps for every individual word, enabling accurate lyric synchronization.
Forced Alignment AI
Deep acoustic model accurately separates vocal tracks from instrumental backgrounds.
Multi-Format Output
Export directly to LRC for music players, SRT for video editors, and JSON for custom apps.
Instant Serverless
Runs on dedicated serverless GPU pipelines with low latency and high concurrency.
Frequently Asked Questions
What audio formats and size limits are supported?
You can upload MP3, WAV, M4A, FLAC, OGG, and WebM audio files up to 30 MB in size. Both public HTTPS URLs and Base64 Data URLs are supported by our API.
How does the AI music transcription differ from standard speech-to-text?
Music audio typically has strong background beats, heavy harmonies, and varied vocal styles. Our music ASR engine is specially optimized for music vocals, ensuring high lyric accuracy even with intense instrumentation.
What is word-level forced alignment?
Forced alignment synchronizes the recognized lyrics with the exact audio waveform, calculating start and end timestamps down to millisecond precision for every word. This is essential for karaoke player interfaces and music video subtitle synchronization.
How much does the Music to Text API cost?
The API costs $0.008 per task with pay-as-you-go pricing. Failed requests or empty non-vocal tracks are not charged, and credits are refunded automatically.