FLAC vs RMVB
Ein detaillierter Vergleich von FLAC Audio und RealMedia VBR — Dateigröße, Qualität, Kompatibilität und welches je nach Workflow zu wählen ist.
FLAC Audio
Audio FilesFLAC is an open-source lossless audio codec that compresses audio to roughly 50-60% of its original size without any quality loss. It is the preferred format for audiophiles and music archival.
Über FLAC-DateienRealMedia VBR
Video FilesRMVB (RealMedia Variable Bitrate) is a variable bitrate extension of the RealMedia container. It was popular for distributing video content in Asian markets due to its efficient compression at low bitrates.
Über RMVB-DateienVorteilsvergleich
FLAC Vorteile
- Lossless — decoded audio is bit-exact identical to the source.
- 40-60% smaller than uncompressed WAV/AIFF.
- Free, patent-free, open-source reference implementation.
- Built-in error detection via MD5 checksums.
- Streaming-friendly — seek tables let you jump to any timestamp instantly.
RMVB Vorteile
- Better quality-at-bitrate than fixed RealMedia.
- Still playable in modern open-source players (VLC, mpv).
- Cultural archive value for 2000s Asian internet video.
Einschränkungen
FLAC Einschränkungen
- File sizes still large compared to lossy codecs (5-10× bigger than AAC for same audio).
- Not suitable for low-bandwidth scenarios like streaming on mobile data.
- Older MP3 players and car stereos may not decode FLAC.
- Slower to encode than lossy codecs.
RMVB Einschränkungen
- Tied to the dead RealNetworks ecosystem.
- H.264 is objectively better at equal bitrates.
- No modern encoder — content is archival only.
- Obscure format outside Asian regional archives.
Technische Spezifikationen
| Spezifikation | FLAC | RMVB |
|---|---|---|
| MIME type | audio/flac | application/vnd.rn-realmedia-vbr |
| Extension | .flac | .rmvb |
| Standard | Open-source reference implementation (Xiph.Org) | — |
| Max bit depth | 32 bits per sample | — |
| Max sample rate | 655 350 Hz | — |
| Max channels | 8 | — |
| Codecs | — | RealVideo 9/10 (variable bitrate) |
| Audio | — | RealAudio Cook |
| Successor ecosystem | — | H.264 MP4 / MKV |
Typische Dateigrößen
FLAC
- 3-min song (CD quality) 20-30 MB
- Full album (10 tracks, CD) 250-400 MB
- 3-min song (hi-res 24-bit/96 kHz) 80-120 MB
- Live concert recording (24-bit) 2-10 GB
RMVB
- 45-min TV episode 150-350 MB
- 2-hour movie 300-800 MB
Bereit zum Umwandeln?
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Häufig gestellte Fragen
FLAC (Free Lossless Audio Codec) is an open-source audio format that compresses audio without any quality loss. Developed by the Xiph.Org Foundation, it typically reduces file sizes by 40-50% compared to WAV while preserving bit-perfect audio.
FLAC (Free sem perdas Audio codec) is an open-source audio formato that compresses audio sem any quality loss. Developed pelo Xiph.Org Foundation, it tipicamente reduces tamanho do arquivos by 40-50% comparado a WAV while preserving bit-perfect audio.
FLAC files play in VLC, foobar2000, Winamp, and most modern music players. Streaming services like Tidal and Amazon Music HD use FLAC. Android supports it natively, and Apple devices support it via third-party apps.
FLAC arquivos reproduzir in VLC, foobar2000, Winamp, e most moderno music players. Streaming services like Tidal e Amazon Music HD usar FLAC. Android suporta it natively, e Apple devices support it via third-party apps.
Both are lossless with similar compression ratios. Use FLAC for universal compatibility and open-source support. Use ALAC if you are fully invested in the Apple ecosystem since iTunes and Apple Music handle ALAC natively.
Both are sem perdas com similar compressão ratios. usar FLAC para universal compatibilidade e open-source support. usar ALAC if you are fully invested no Apple ecosystem since iTunes e Apple Music handle ALAC natively.