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O převodu OGV na ALAC

OGV files store Vorbis audio (a lossy open-source codec) within the Ogg video container. ALAC (Apple Lossless Audio Codec) is Apple's lossless compression format that reduces PCM audio to about 50-60% of original size with zero data loss. Open-sourced by Apple in 2011, ALAC plays natively on every Apple device and integrates seamlessly with Apple Music, iTunes, and Apple's professional audio tools.

Proč převádět OGV na ALAC?

Extracting OGV audio to ALAC creates a lossless archival copy of the decoded Vorbis audio that integrates perfectly with the Apple ecosystem. While the source is lossy (Vorbis), storing the decoded output as ALAC prevents any further quality degradation during future format conversions or editing.

ALAC is also the best format for importing into Apple Music with the Lossless quality badge, making it ideal for building a music library from OGV video sources.

Běžné případy použití

Archiving conference talk audio from OGV recordings in Apple's lossless format for long-term preservation
Extracting music from OGV concert videos for Apple Music library integration with lossless quality
Creating lossless audio masters from OGV sources for future re-encoding to any lossy format
Building an Apple-native audio library from open-source OGV video content
Extracting OGV audio for lossless storage on iCloud Drive with full Apple ecosystem integration

Jak to funguje

FFmpeg decodes the OGV container's Vorbis audio to raw PCM, then encodes using the ALAC encoder into an M4A container. The output supports 16-bit to 32-bit depth and sample rates up to 384 kHz. Typical OGV Vorbis audio at 44.1 kHz stereo maps directly to 16-bit/44.1 kHz ALAC. Compression achieves roughly 50-60% of the PCM equivalent size while remaining bit-perfect on decode.

Kvalita a výkon

ALAC losslessly preserves the decoded Vorbis audio. Since Vorbis is lossy, the ALAC output contains the same quality as the Vorbis source — no better, no worse. The advantage is that ALAC prevents any further quality loss during subsequent operations while providing meaningful compression savings versus uncompressed WAV or AIFF.

FFMPEG EngineModerateLossless

Kompatibilita zařízení

Device	OGV	ALAC
Windows PC	Partial	Partial
macOS	Partial	Native
iPhone/iPad	Partial	Native
Android	Partial	Partial
Linux	Partial	Partial
Web Browser	No

Doporučená nastavení podle platformy

YouTube

Resolution: 1920x1080

Bitrate: 8-12 Mbps

H.264 recommended for fast processing

Instagram

Resolution: 1080x1080

Bitrate: 3.5 Mbps

Square or 9:16 for Reels

TikTok

Resolution: 1080x1920

Bitrate: 4 Mbps

9:16 vertical, under 60s ideal

Twitter/X

Resolution: 1280x720

Bitrate: 5 Mbps

Under 140s, 512MB max

Resolution: 960x540

Bitrate: 2 Mbps

16MB limit for standard, 64MB for document

Discord

Resolution: 1280x720

Bitrate: 4 Mbps

Tipy pro nejlepší výsledky

1Extract at 16-bit/44.1 kHz to match the Vorbis source — higher bit depths waste space without adding quality
2Use ALAC as your master archival copy and derive AAC/MP3 versions from it to avoid lossy-to-lossy transcoding
3Add proper metadata (title, artist, album, artwork) for clean Apple Music library display
4If you need cross-platform lossless, also create a FLAC copy — some devices do not support ALAC
5Tag the file accurately to avoid confusion — note in the comments that the source is OGV Vorbis

Související převody

Convert ALAC to OGV OGV to MP4 Converter OGV to AAC Converter OGV to AVI Converter OGV to FLAC Converter OGV to WAV Converter MP4 to ALAC Converter AAC to ALAC Converter AVI to ALAC Converter FLAC to ALAC Converter WAV to ALAC Converter

OGV to ALAC provides the best Apple-ecosystem archival format for decoded open-source audio, combining lossless preservation with seamless device integration.

Často kladené otázky

The ALAC encoding step is lossless — decoded audio is preserved bit-perfectly. However, the original Vorbis compression artifacts from the OGV source are permanently present.

Both produce identical audio quality (lossless). ALAC integrates natively with Apple devices; FLAC works everywhere else. File sizes are within 1-5% of each other.

Yes. Apple Music recognizes ALAC files and displays the Lossless badge, even though the original source was lossy Vorbis.

Yes, for archival. The ALAC serves as a perfect reference copy from which you can produce any future lossy format (AAC, MP3) without cascading generation losses.

ALAC is stored in an M4A container (MPEG-4 audio), which is the standard for Apple audio files and fully supported by iTunes, Apple Music, and all Apple devices.

Související převody a nástroje

Convert OGV to ALAC — Free Online Converter

Jak převést

O převodu OGV na ALAC

Proč převádět OGV na ALAC?

Běžné případy použití

Jak to funguje

Kvalita a výkon

Kompatibilita zařízení

Doporučená nastavení podle platformy

YouTube

Instagram

TikTok

Twitter/X

WhatsApp

Discord

Tipy pro nejlepší výsledky

Související převody

Často kladené otázky

Související převody a nástroje

Opačný převod

Převeďte OGV také na

Převeďte také na ALAC

Převod OGV do jiných formátů

Převod jiných formátů do ALAC

Související nástroje

Prozkoumat více

OGV vs ALAC

Vlastnost	OGV	ALAC
Celý název	Ogg Video	Apple Lossless Audio Codec
Přípona	.ogv	.m4a
Nejlepší pro	Open source	Lossless