Audio2Many
Supported formats explained
Audio2Many reads 33 audio formats and writes to 18. Here is what each one is, in plain English.
Formats it can read
Any file with one of these extensions can be added to the queue, individually or by scanning a folder, and converted (33 file extensions).
| Format | What it is |
|---|---|
| MP3 (.mp3) | MPEG-1/2 Audio Layer III — the ubiquitous lossy music format that plays everywhere. |
| MP2 (.mp2) | MPEG-1/2 Audio Layer II — an older lossy format still used in broadcast and video. |
| WAV (.wav) | Waveform Audio — uncompressed PCM; the standard raw-audio container on Windows. |
| Ogg Vorbis (.ogg) | Open, royalty-free lossy format; a free alternative to MP3 and AAC. |
| AIFF (.aiff, .aif) | Audio Interchange File Format — uncompressed PCM; Apple’s equivalent of WAV. |
| WMA (.wma) | Windows Media Audio — Microsoft’s lossy audio format. |
| WMV (.wmv) | Windows Media Video — the audio track is read from the file. |
| ASX (.asx) | Advanced Stream Redirector — a Windows Media playlist / redirector file. |
| ASF (.asf) | Advanced Systems Format — Microsoft’s media container that WMA and WMV live inside. |
| M4A (.m4a) | MPEG-4 Audio — usually AAC, occasionally Apple Lossless, in an MP4 container. |
| MP4 (.mp4) | MPEG-4 container — the audio track is read. |
| FLAC (.flac) | Free Lossless Audio Codec — popular open lossless format; smaller than WAV with no quality loss. |
| AAC (.aac) | Advanced Audio Coding — a raw AAC stream (the codec behind most .m4a files). |
| AC-3 (.ac3) | Dolby Digital — a lossy surround-sound format used on DVDs and broadcast. |
| WavPack (.wv) | An open lossless (and hybrid) audio format. |
| AU (.au) | Sun / NeXT audio — an early Unix audio format. |
| Wave64 (.w64) | Sony’s WAV variant that supports files larger than 4 GB. |
| VOC (.voc) | Creative Voice — the classic Sound Blaster audio format. |
| IRCAM (.sf) | A PCM format from the computer-music research world. |
| PAF (.paf) | Ensoniq PARIS Audio File, from the PARIS digital-audio system. |
| PVF (.pvf) | Portable Voice Format — a simple voice-audio interchange format. |
| CAF (.caf) | Apple Core Audio Format — Apple’s container for large or high-resolution audio. |
| 8SVX (.svx) | Amiga IFF / 8SVX — the classic Amiga 8-bit sampled-sound format. |
| Monkey’s Audio (.ape) | A lossless format known for high compression ratios. |
| Musepack (.mpc) | A lossy format tuned for high-quality music at higher bitrates. |
| Speex (.spx) | An open, speech-oriented lossy codec (now largely superseded by Opus). |
| Impulse Tracker (.it) | A tracker-music module — patterns plus embedded instrument samples. |
| FastTracker II (.xm) | Extended Module — a tracker-music format. |
| ScreamTracker 3 (.s3m) | A tracker-music module format. |
| ProTracker (.mod) | The original Amiga tracker module format. |
| MultiTracker (.mtm) | A tracker-music module format. |
| MO3 (.mo3) | A tracker module whose samples are stored compressed (MP3 / Ogg). |
Formats it can write
You pick one destination format for the whole queue. There are 18 to choose from — 6 lossy and 12 lossless / PCM.
| Format | Kind | What it is |
|---|---|---|
| MP3 (.mp3) | Lossy | Universal compatibility — the safe everyday choice. |
| MP2 (.mp2) | Lossy | Legacy broadcast / video format. |
| AAC / M4A (.m4a) | Lossy | Efficient modern codec; produced via Windows Media Foundation to stay patent-safe. |
| Ogg Vorbis (.ogg) | Lossy | Open, royalty-free. |
| Opus (.opus) | Lossy | Modern open codec; excellent quality, especially at lower bitrates. |
| WMA (.wma) | Lossy | Microsoft’s audio format. |
| FLAC (.flac) | Lossless | Open and widely supported; compresses with no quality loss. |
| WAV (.wav) | Lossless (PCM) | Uncompressed; readable virtually everywhere. |
| AIFF (.aiff) | Lossless (PCM) | Apple’s uncompressed format. |
| AU (.au) | Lossless (PCM) | Sun / NeXT format. |
| Apple CAF (.caf) | Lossless (PCM) | Apple container; handles very large files. |
| Sony Wave64 (.w64) | Lossless (PCM) | WAV variant for files over 4 GB. |
| Creative VOC (.voc) | Lossless (PCM) | Legacy Sound Blaster format. |
| Ensoniq PAF (.paf) | Lossless (PCM) | PARIS-system format. |
| Amiga 8SVX (.svx) | Lossless (PCM) | Mono 8-bit; offered for retro use. Every 8SVX file is verified after writing — see the note below. |
| NIST SPHERE (.nist) | Lossless (PCM) | Used in speech-research corpora. |
| IRCAM (.sf) | Lossless (PCM) | Computer-music research format. |
| Portable Voice (.pvf) | Lossless (PCM) | Simple voice interchange format. |
How quality and metadata are handled
- Quality matching. Sample rate, channels and (for lossless / PCM targets) bit depth are carried through from the source. Converting a lossy file to another lossy format never sets the target below the source’s bitrate.
- Tags and artwork. Title, artist, album, year, track, genre and embedded artwork are read from the source and written into the converted file, handled independently of the audio engine. The plain PCM containers (AU, CAF, Wave64, VOC, PAF, 8SVX, NIST, IRCAM, PVF) hold audio only and don’t carry tags.
- Unicode filenames. Files and folders with non-Latin names — for example Japanese — convert correctly.
- Amiga 8SVX note. 8SVX is a 1980s Amiga format (mono, 8-bit), included for retro and archival interest. Its encoder occasionally writes a file that cannot be read back, and this does not track with length or size — some multi-hour recordings convert perfectly while a shorter one fails. Audio2Many guards against it by reloading every 8SVX file immediately after writing; if it will not decode, that file is marked failed in the queue and the end-of-run report and removed, so a broken 8SVX never reaches you as a “successful” output. Only 8SVX is affected — every other format converts reliably. For normal use or archiving, prefer FLAC or WAV, or MP3, AAC or Opus.