Importing Audio

Importing pulls an existing audio file straight onto a pad, ready to play, slice, and granulate. Anything iOS can hand to the document picker — files in the Files app, iCloud Drive, a connected USB drive, or another app’s document provider — can land on a pad.

How to import

1. Tap a pad to select it. On the Pad Grid, the selected pad shows its toolbar.
2. Tap Load in that toolbar (the tray icon, labelled with the Max 60s length limit).
3. The system file picker opens. Browse to the audio file you want and tap it.

The file picker is the standard iOS document browser, so it reaches every location your other apps can: Files, iCloud Drive, on-device storage, external drives, and any installed document provider. To bring in a file from another device over AirDrop, accept the AirDrop into the Files app first, then import it from there.

If the chosen pad already holds a sample, GranSample asks Replace existing sample? before overwriting it. Tap Replace to swap in the new audio, or Cancel to keep what’s there.

Supported formats

GranSample reads the common uncompressed and compressed formats that iOS decodes:

Format	Extension
WAV	.wav
AIFF	.aiff / .aif
MP3	.mp3
AAC / Apple audio	.m4a

Mono and stereo files are both accepted, and the file is resampled to the engine’s working sample rate automatically on import. The imported audio is normalized so quiet files arrive at a usable level.

Limits

A single sample can be at most 60 seconds long. Longer files are rejected with a “file exceeds the 60-second limit” message — trim the file in another app first, or record a shorter section. If a file can’t be opened (for example, an iCloud file that hasn’t finished downloading, or a permission scope that was denied), GranSample reports the error rather than silently doing nothing.

After importing

Once the sample is on a pad you can:

• Trim, set loop points, and adjust playback in the Sample Editor.
• Slice it across multiple pads with Chop (Pro).
• Shape its texture with the Granular Parameters, or play it back conventionally in Linear Playback.

Importing a whole kit

To bring in an entire kit — every pad, its samples, and settings — at once, use a shared .gskit file instead of importing files one pad at a time. Importing a .gskit is free; see Sharing Kits (.gskit) for how to open and create them.

For a step-by-step walkthrough of getting sounds into the app, see the How to sample sounds on iPhone guide, or Recording from the Mic to capture audio directly.