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Upload your .mpeg 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 .flac file when it's ready.

Om konvertering fra MPEG til FLAC

MPEG files store audio as MPEG Audio Layer 2 (MP2), a perceptual codec that discards frequencies most listeners cannot hear. FLAC (Free Lossless Audio Codec), released in 2001, provides bit-perfect audio compression with typical ratios of 50-70%. Converting MPEG to FLAC extracts the audio track and wraps the decoded PCM in a lossless, open-source container.

Hvorfor konvertere MPEG til FLAC?

When you need to edit, process, or archive audio extracted from MPEG video files, FLAC offers the best balance of quality preservation and storage efficiency. Unlike WAV or AIFF, FLAC compresses the audio by roughly half without discarding a single sample. Unlike AAC or MP3, FLAC introduces zero generational loss, making it safe for repeated editing and re-encoding.

FLAC is also the archival format of choice for libraries, museums, and broadcast organizations. If you are digitizing a collection of MPEG-1 VCD recordings or MPEG-2 broadcast captures, converting the audio to FLAC ensures the best possible preservation of the decoded audio for future use, regardless of how many times the files are accessed or processed.

Vanlige bruksområder

Archiving audio from broadcast MPEG recordings in a lossless, open format
Extracting music tracks from MPEG-2 concert DVDs for lossless library storage
Creating edit-safe audio masters from MPEG source material
Building a FLAC library from a collection of digitized VHS tapes encoded to MPEG
Preserving radio broadcast audio from MPEG transport stream recordings

Slik fungerer det

FFmpeg decodes the MP2 audio stream from the MPEG container and encodes it as FLAC. The command uses `-vn -acodec flac -compression_level 8 -ar 44100 -ac 2`. Compression levels range from 0 (fastest, least compression) to 12 (slowest, most compression), with 8 being a good balance. The difference between levels is encoding speed only — decoding speed and quality are identical.

Kvalitet og ytelse

FLAC encoding is mathematically lossless — the output exactly reproduces the decoded MP2 audio. Since the source is lossy MP2, the FLAC file perfectly preserves whatever the MP2 decoder outputs, including any compression artifacts. File sizes are typically 50-70% of equivalent WAV, depending on audio complexity.

FFMPEG EngineModerateLossless

Enhetskompatibilitet

Device	MPEG	FLAC
Windows PC	Partial	Partial
macOS	Partial	Partial
iPhone/iPad	Partial	Partial
Android	Partial	Native
Linux	Partial	Native
Web Browser	No

Anbefalte innstillinger per plattform

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

Tips for best resultat

1Use FLAC compression level 5 for the best speed-to-compression ratio — higher levels save minimal space
2Verify the source MPEG audio sample rate before converting — match it in the output to avoid unnecessary resampling
3Add ReplayGain tags to FLAC files if building a music library for consistent playback volume
4FLAC supports up to 8 channels — if your MPEG has surround sound, it can be preserved
5Consider FLAC as an intermediate format: extract MPEG to FLAC once, then convert FLAC to any target format as needed

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MPEG to FLAC conversion gives you a compact, lossless preservation of extracted audio that is ideal for archiving, editing, and serving as a master copy for future format conversions.

Ofte stilte spørsmål

No. The conversion preserves the decoded MP2 quality without adding any further loss. The benefit is that FLAC prevents additional degradation during future processing or re-encoding.

FLAC typically reduces file size by 30-50% compared to uncompressed WAV. Compression depends on audio content — silence and simple audio compress more than complex orchestral passages.

iOS has supported native FLAC playback since iOS 11 (2017). Older iOS versions require a third-party player like VLC. Android has supported FLAC natively since version 3.1.

Both are lossless and quality-identical. FLAC has better compression, broader non-Apple support, and is fully open-source. ALAC integrates better with iTunes and Apple devices. For platform-neutral archiving, FLAC is preferred.

Level 5 (default) offers good compression with fast encoding. Levels 6-8 squeeze out 1-3% more compression at 2-3x slower encoding. The quality is identical at all levels — only encoding speed differs.

Yes. FLAC supports Vorbis Comments for metadata (title, artist, album, etc.) and embedded cover art, making it suitable for organized music libraries.

Relaterte konverteringer og verktøy

Konverter også MPEG til

MPEG to MP4→MPEG to AVI→MPEG to WebM→MPEG to AAC→MPEG to MKV→MPEG to MOV→

Konverter også til FLAC

MP4 to FLAC→AVI to FLAC→WebM to FLAC→

Egenskap	MPEG	FLAC
Fullt navn	Moving Picture Experts Group	Free Lossless Audio Codec
Filendelse	.mpeg	.flac
Best egnet for	Universal support	Lossless compression

Convert MPEG to FLAC — Free Online Converter