Convert MPG to AIFF: Free Online Converter
Convert MPEG Video to Audio Interchange File Format online for free. Fast, secure video conversion with no watermarks or registration.
MPGに対応
アップロードすることで、これらのファイルの権利を有していること、および利用規約に同意することを確認したものとみなされます。
安全な転送
HTTPS暗号化アップロード
プライバシー優先
ゲストのファイルは約2時間で自動削除
登録不要
すぐに変換を開始
どこでも動作
あらゆるブラウザ、あらゆるデバイス
MPG から AIFF への設定
- エンジン
- メディア
- 設定
- 設定は不要です。適切な初期値が使われます。
変換方法
アップロードエリアにドラッグするか、クリックして選択し、.mpgファイルをアップロードしてください。
必要に応じて出力設定を調整してください。デフォルト設定ではオリジナルの品質を維持します。
「変換」をクリックし、準備ができたら.aiffファイルをダウンロードしてください。
MPGからAIFFへの変換について
MPG files from DVDs, VCDs, and broadcast captures carry MP2 audio at bitrates typically between 128 and 384 kbps. AIFF (Audio Interchange File Format) is Apple's uncompressed audio format storing raw PCM data: the standard interchange format for professional audio production on macOS. Converting MPG to AIFF decodes the legacy MP2 audio and saves it as uncompressed PCM, producing files ready for editing in Logic Pro, GarageBand, and other macOS DAWs.
MPGをAIFFに変換する理由
Professional audio editing requires uncompressed input to prevent further quality degradation during processing. If you have audio in MPG files — dialogue from DVD rips, broadcast recordings, or VCD captures — converting to AIFF gives you a format that macOS audio tools handle natively. Every filter, effect, and edit can be applied without worrying about codec artifacts accumulating.
主な活用例
- Importing DVD audio into Logic Pro for film score editing or remixing
- Extracting broadcast audio for archival in uncompressed format on macOS
- Creating uncompressed reference files from VCD audio for quality analysis
- Preparing MPG dialogue tracks for professional dubbing or voice-over workflows
- Converting old video tape digitizations (stored as MPG) to archival audio format
仕組み
FFmpeg decodes the MP2 audio stream from the MPG container and outputs it as signed 16-bit big-endian PCM in the AIFF container. The typical output is 44.1 kHz or 48 kHz stereo (matching the source sample rate). AIFF files are approximately 10 MB per minute for CD-quality stereo audio. The conversion is straightforward — MP2 decode → PCM write — with no intermediate processing unless resampling is requested.
品質とパフォーマンス
The AIFF output faithfully captures every detail that the MP2 codec preserved. Quality cannot exceed the original MP2 encoding — a 192 kbps MP2 decoded to AIFF will sound identical to the MP2 source. The advantage is that subsequent editing and processing will not introduce any additional codec artifacts.
デバイス互換性
| Device | MPG | AIFF |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No | No |
プラットフォーム別の推奨設定
YouTube
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
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
8MB free, 50MB Nitro
最良の結果を得るためのヒント
- 1Use 48 kHz sample rate for video production workflows and 44.1 kHz for music editing — match the original MPG audio sample rate when possible
- 2AIFF files are large — only convert the audio segments you need by trimming the MPG first
- 3For cross-platform projects, use WAV instead of AIFF — the audio content is identical
- 4If the MPG audio is stereo but you only need mono, downmix during conversion to halve the file size
- 5Verify the original MP2 bitrate with MediaInfo to assess the maximum audio quality you can expect from the AIFF output
関連する変換
MPG to AIFF conversion is the path from legacy broadcast audio to professional editing on macOS. The uncompressed PCM output ensures maximum flexibility in any audio production workflow.
MPGとAIFFの比較
| 特徴 | MPG | AIFF |
|---|---|---|
| 正式名称 | MPEG Video | Audio Interchange File Format |
| 拡張子 | .mpg | .aiff |