Quick Start

Quick Start

Convert a piano recording

1. Launch A2M.
2. If A2M needs its transcription model, approve the one-time model download and wait for it to finish.
3. Select Choose Audio, then choose a piano recording.
4. Leave the device set to CPU for the simplest first conversion.
5. Select Convert to MIDI.
6. When conversion finishes, select Open output folder.

The default output folder is:

Downloads\A2M

You can change that location in Settings. If a file with the intended name already exists, A2M preserves it and creates a numbered name such as recording_2.mid.

What to expect

• A2M is designed for piano recordings. A clean solo-piano recording or piano stem is the best starting point.
• CPU mode is fully usable. A GPU is optional.
• Conversion time depends on the recording length, computer, active device, and resource settings. There is no universal speed estimate.
• The result is an editable transcription, not a guaranteed perfect score. Check timing, note lengths, dynamics, and pedals in your MIDI editor.

Before choosing GPU mode

CUDA and DirectML require provider-specific runtime components. A2M can download and provision its managed runtime pack when needed. CUDA may additionally require a compatible NVIDIA CUDA toolkit and cuDNN components.

For a first conversion, confirm that CPU mode works before configuring GPU acceleration.

If A2M cannot read the file

The file chooser lists common audio extensions, but actual decoding depends on the file's contents and the audio decoders available in the packaged application. Try a normal PCM WAV or FLAC copy before assuming the transcription engine is at fault.

See Input and Output Files and Troubleshooting.