Convert Standard MIDI File (.midi) to Flash Video (.flv) online for free. Fast, secure audio conversion with no watermarks or registration.
Upload your .midi file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .flv file when it's ready.
MIDI (.midi) is the standard interchange format for musical performance data, encoding notes, dynamics, tempo, and instrumentation as a lightweight binary event stream. The format is deeply embedded in music education infrastructure: notation editors (MuseScore, Finale, Sibelius) export .midi for cross-application compatibility, online music courses distribute .midi for student practice, and interactive music textbooks embed .midi for playable examples.
FLV (Flash Video) was the dominant web multimedia format during the Flash Player era (2005-2020). Although Flash reached end-of-life in December 2020, FLV content remains in massive legacy archives — educational video platforms, corporate training libraries, and institutional media servers that were built on Flash infrastructure. Converting MIDI to FLV serves the niche but real need to ingest rendered MIDI audio into these legacy systems.
Enterprise and educational institutions with Flash-era infrastructure investments cannot always migrate to modern formats immediately. Media servers running Red5, Wowza with RTMP, or custom Flash-based CMS installations may only accept FLV uploads. When MIDI-based educational music content needs to enter these systems, FLV conversion bridges the technology gap.
Archivists preserving Flash-era educational content may need to add MIDI-rendered audio to existing FLV collections for completeness. Maintaining format consistency within an archive simplifies metadata management, cataloging, and retrieval, even when the archive format itself is obsolete.
FFmpeg synthesizes the .midi event stream into PCM audio using a SoundFont-based engine. The PCM is encoded as MP3 (for legacy Flash Player compatibility) or AAC (for modern RTMP servers) and muxed into an FLV container. FLV uses a tag-based binary structure: a 9-byte FLV header, followed by audio tags (tag type 0x08) containing codec-specific audio data with timing information. An optional ScriptData tag (onMetaData) embeds duration, audio codec ID, sample rate, and sample size for proper player initialization.
The FLV container is transparent — it does not alter the encoded audio. MP3 at 192 kbps or AAC at 128 kbps within FLV provides standard lossy quality adequate for educational content. The SoundFont quality matters more than the encoding for musical results. For music education specifically, a SoundFont with distinct, well-separated instrument timbres aids student comprehension better than a reverb-heavy cinematic bank where instruments blend together.
| Device | MIDI | FLV |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Resolution: N/A
Bitrate: 256 kbps
AAC format required
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
MIDI to FLV is a legacy-system conversion for institutions still operating Flash-era media infrastructure. Use MP3 audio within FLV for maximum compatibility with older Flash-based players and servers.
Turvallinen siirto
HTTPS-salatut lataukset
Yksityisyys ensin
Tiedostot poistetaan automaattisesti käsittelyn jälkeen
Ei rekisteröitymistä
Aloita muuntaminen heti
Toimii kaikkialla
Mikä tahansa selain, mikä tahansa laite
| No |
| Ominaisuus | MIDI | FLV |
|---|---|---|
| Koko nimi | Standard MIDI File | Flash Video |
| Tiedostopääte | .midi | .flv |
| Paras käyttökohde | Musical data format | Small file size |