Hvad er FUR-filformatet?
En .fur-fil er et Furnace Module, det oprindelige projektformat til Furnace, en gratis multi-system chiptune-tracker skrevet af tildearrow og første gang udgivet i 2021. I stedet for at gemme færdig lyd indeholder en .fur-fil alt, hvad der er nødvendigt for at genopbygge en sang: kanallayout, mønstre af noder og effekter, instrumentdefinitioner, wavetables og indlejrede PCM- eller ADPCM-samples. Furnace kan emulere mere end 50 retro-lydchips, og hvert modul registrerer, hvilke af disse chips sangen er målrettet mod.
Under motorhjelmen er formatet en blokbaseret binær fil. Den åbner med den 16-byte magiske streng -Furnace module-, en 2-byte formatversion og derefter en række navngivne blokke til sanginfo, instrumenter, samples og mønsterdata. Hele filen kan være zlib-komprimeret, hvilket Furnace selv registrerer. Formatversioner er almindelige heltal, der er steget fra 27 i Furnace 0.4.6 til 228 i 0.6.8.1, mens ældre filer stadig kan læses.
Sikkerhed og tryghed
RISIKO: LOWA .fur file is passive song data, not an executable, so opening one cannot run code. The only realistic concern is a malformed or malicious file exploiting a parser bug, so open files from unknown sources with an up-to-date Furnace build.
Formatdetaljer
kort fortalt- Fur / fur brush texture files - Some 3D and hair-grooming plugins use .fur as an ad-hoc extension for fur or hair descriptor data, unrelated to Furnace audio.
- Generic user-named data - The three-letter string 'fur' is occasionally used as a private extension by in-house tools; such files have no shared format.
Programmer der åbner FUR-filer
.fur file with File > Open to edit and play the module. .fur file from within the app. furnace on Arch) or the AppImage, then run furnace song.fur to open it. .fur file to play or edit it. Tekniske detaljer
dyb specifikation| Encoding | Binary block structure; strings are UTF-8 null-terminated |
| Byte order | Little-endian for all multi-byte integers and floats |
| Container | Flat block list: 16-byte magic, 2-byte format version, reserved fields, then named blocks (INFO, SONG, INS, WAVE, SMPL, PATR, etc.) |
| Compression | Optional whole-file zlib (DEFLATE) compression; uncompressed files also accepted |
| Typical size | A few KB to several MB, depending on embedded PCM samples |
| Structure | After the header, each block (format version >= 100) carries a 4-byte identifier and 4-byte little-endian size, followed by its data. Blocks hold song metadata and channel setup, instruments (40+ synthesis types), wavetables, PCM/ADPCM/BRR samples, and 256-row pattern arrays with note, instrument, volume, and effect columns. Multiple SONG blocks provide subsongs sharing the same assets. |
| Integrity | No built-in checksum; integrity relies on the zlib stream when compressed |
| Platforms | Windows, macOS, Linux, Android, FreeBSD |
| Notes | The magic string is written mixed-case as -Furnace module- per the official specification. Format versions are monotonic integers (e.g. 27 for Furnace 0.4.6, 181 for 0.6, 228 for 0.6.8.1); Furnace maintains backward compatibility across the range using version-conditional fields. |
| Initial Release Full | Furnace 0.1 was first released in 2021 by tildearrow. |
| Udgivet | 2021 |
| Seneste version | Format version 228 (Furnace 0.6.8.1) |
| Åben standard | Ja · royaltyfri |
| Specifikation | github.com |
FUR-konverteringer
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