The following formats are supported for sound and music data in ECWolf.

Sampled formats

• FLAC - Free Lossless Audio Codec
• OPUS - OGG Opus
• OGG - OGG Vorbis
• WAV - Waveform Audio File Format

In most cases Opus should be preferred over Vorbis. MP3 will not be supported by ECWolf as you should be encoding with Opus instead.

OPL (AdLib) formats

• IMF - id Software Music Format (Type 1)

For background music only. AdLib sounds and PC speaker sounds can also be used, but requires specific set up within SNDINFO.

MIDI formats

• MID/MIDI/SMF - Standard MIDI file format

For background music only. At this time, the MIDI playback code is highly unstable. It is recommended that MIDI files be rendered to Opus instead.

Module formats

• 669 - Composer 669, Unis 669
• AMF - DSMI Advanced Module Format
• AMF - ASYLUM Music Format V1.0
• APUN - APlayer
• DSM - DSIK internal format
• FAR - Farandole Composer
• GDM - General DigiMusic
• IT - Impulse Tracker
• IMF - Imago Orpheus
• MOD - 15 and 31 instruments
• MED - OctaMED
• MTM - MultiTracker Module editor
• OKT - Amiga Oktalyzer
• S3M - Scream Tracker 3
• STM - Scream Tracker
• STX - Scream Tracker Music Interface Kit
• ULT - UltraTracker
• UNI - MikMod
• XM - FastTracker 2

For background music only.