Tempo, Pitch & Stem Studio

Upload a song, analyse its BPM/key, change the complete song tempo while preserving pitch, preview the result, and prepare separate stem workflows from one advanced interface.

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Upload Audio

Drag & drop your song here, or tap to browse

MP3WAVM4AFLAC

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Song Analysis

Waiting for audio

ORIGINAL BPM—

CURRENT BPM—

KEY / SCALE—

DURATION—

SAMPLE RATE—

Full Song Tempo

PITCH LOCK

100%

Original → Current BPM

ORIGINAL—

NEW—

Tempo percentage 100%

Pitch & Key

SEPARATE

Pitch 0 semitone

Detected Key

Scale

Master Volume 100%

Keep pitch locked while changing tempo

AI Stem Separation

MODEL REQUIRED

This panel is designed for AI separation into Vocal, Drums, Bass and Music/Other. A true high-quality separator needs a Demucs/MDX/ONNX model; this single-file build does not silently download a large AI model. The interface is ready for a local/API model connection.

🎤 Vocal

STEM

🥁 Drums

STEM

🎸 Bass

STEM

🎹 Music / Other

STEM

Trim & Fades

EDITOR

Start (sec)

End (sec)

Fade In 0.0s

Fade Out 0.0s

Mix & Output

LOCAL

Format

Channels

Normalize output

Loop preview

Processing Log

Amal Star Media Audio Engine

Ready.