Free online DSF to APE converter

Source format: DSF

DSF is a high-resolution audio file format associated with DSD (Direct Stream Digital) recordings. It is commonly used by audiophiles, music archivists, and some studio workflows that preserve native DSD material from SACD rips or DSD-capable recorders. DSF files can store one or more channels of audio and may include metadata such as track title, artist, and album information.

DSF is valued for preserving the original DSD signal, but it is not as widely supported as standard PCM formats. Many players and editors can open it only with specific plugins or dedicated audio software.

Target format: APE

APE usually refers to Monkey’s Audio, a lossless audio compression format. It reduces file size without discarding audio data, so the decoded output is identical to the source PCM audio used for encoding. APE is used by collectors and users who want smaller files while keeping full audio fidelity.

APE is supported by fewer devices and apps than more common lossless formats such as FLAC, but it can be useful for archiving when compatibility with a specific player or library is available.

How to perform the conversion

Converting DSF to APE is usually a two-stage process because DSF is a DSD format and APE is a PCM-based lossless codec. In practice, the audio is first decoded from DSF to PCM, then encoded to APE. The best desktop tools for this are foobar2000 and ffmpeg, depending on your workflow.

Method 1: foobar2000

1. Install foobar2000 on Windows.
2. Open the DSF file in the player.
3. Select the file, then choose File → Convert → ....
4. Pick an output format based on an installed Monkey’s Audio encoder component, if available.
5. Choose the destination folder and start the conversion.

If your foobar2000 setup does not include an APE encoder, you may need to install the appropriate encoder component or use another tool that can write APE files.

Method 2: ffmpeg

Use ffmpeg to decode DSF and encode to APE if your build supports Monkey’s Audio output:

ffmpeg -i input.dsf output.ape

If your ffmpeg build cannot write APE directly, convert first to a temporary PCM-based format such as WAV, then encode to APE with a compatible encoder.

Online conversion on 101convert.com

You can also convert the file on 101convert.com for free, without installing any software. This is convenient for quick one-off conversions when you do not want to set up desktop tools.

Notes on quality, compatibility, and limitations

DSF to APE is not a native lossless-to-lossless DSD preservation path. Because DSF contains DSD audio and APE stores PCM-based lossless audio, the conversion typically involves DSD-to-PCM transcoding. That means the resulting APE file can be bit-perfect relative to the intermediate PCM conversion, but it is not the same as preserving the original DSD bitstream.

For best results, use a high-quality DSD-to-PCM conversion setting, especially if the source is high sample rate or multichannel. Also note that metadata support may not transfer perfectly between formats, and some players may not handle APE files as broadly as FLAC or WAV.

If your goal is archival preservation of the original DSD content, keeping the DSF file is usually preferable. If your goal is smaller lossless files for a player that supports APE, the conversion can be practical.