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Convert SF2 to AAC

Save every sample of a SF2 SoundFont bank as a AAC file (ZIP).

or drag them here, or paste with Ctrl+V / ⌘V

Audio and video files · up to 10 files at once

Conversion options

PDF pages

Leave empty for all, or type e.g. 1-3, 5, 8-

Resolution
PDF document
Page size
Images per page
Image resolution in the PDF
Image
Icon sizes (px)
Video

Lower resolutions reduce file size. The video will not be enlarged.

Audio
Bitrate

Higher means better sound and a larger file. “Auto” keeps the bitrate of the original (at least 128 kbit/s); from lossless files it uses the format’s high-quality setting.

Sample rate
Channels
Cut (optional)

Times such as 1:30 or 0:45.5. Leave empty to keep the whole recording.

Picture

The video shows this picture for the whole length of the sound – for example to upload music or a podcast to YouTube.

Video size
Document
Resolution
Pages to convert

Several pages arrive as a ZIP with one image per page.

Shown by e-readers in the library; leave empty to keep what the document says.

PDF/A-2b embeds all fonts so the file looks the same in many years; required by many courts and public offices.

Scales every sheet so it fits on a single page instead of being split across several.

Sheets

CSV and TSV hold one table: with “Every sheet” each sheet becomes its own file, together in a ZIP.

Separator

Excel in many European languages expects a semicolon; most other programs a comma.

Convert on our server?

If you continue, the file is uploaded over an encrypted connection and converted on our server. You can keep using the site meanwhile. The original is deleted as soon as it is converted; the result is kept for 7 days so you can download it, and you can delete it at any time. Files are never shared or used for anything else.

Audio and video files are uploaded only after you accept and are converted on our server. The input is deleted after processing; results are kept for 7 days. Privacy details

How to use: SF2 to AAC

  1. 1 Click “Choose files” or drop your SF2 bank onto the page (up to 10 at once).
  2. 2 AAC is already selected as the output; under “Options” you can choose a bitrate, sample rate or channels.
  3. 3 Click “Convert” and confirm the upload: the samples are extracted on our server.
  4. 4 Follow the progress – you can keep browsing meanwhile.
  5. 5 Download the ZIP with the AAC files when it is ready; it stays available for 7 days unless you delete it.

About this tool

SF2 (SoundFont 2) is a bank of instrument samples for synthesizers and music software, not a song. AAC is the successor of MP3: better sound at the same size, used by Apple, YouTube and most streaming services.

A SoundFont is not one song but a bank of recorded instrument notes (samples). This converter saves every sample of your SF2 bank as its own AAC file, named after the sample; left and right halves of stereo samples are joined into one stereo file. You get all files together in a ZIP – ready for a sampler, a DAW or any audio player.

Files are converted on our server: the upload starts only after you confirm, the original is deleted after conversion and the result is kept for 7 days unless you delete it sooner.

Frequently asked questions

What do I get from a SF2 file?

One AAC file for every sample in the bank (stereo samples as one stereo file), named after the sample and numbered in bank order, all together in a ZIP.

Can I hear a song from the SoundFont?

No – a SoundFont contains single instrument notes, not music. To hear a melody you play the bank with a MIDI file in a synthesizer; here you get the recorded notes themselves.

Is the sound quality kept?

Yes. Samples are copied 1:1 (16-bit, or 24-bit when the bank has 24-bit samples) – to WAV without any change, to compressed formats at high quality.

How large can the bank be?

Up to 300 MB per file, and up to 10 files at once.

What happens to my files?

They are uploaded only after you confirm. The original is deleted as soon as the samples are saved, and the result is kept for 7 days unless you delete it sooner.

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