Convert TS to AAC: Free Online Converter
Convert MPEG Transport Stream to Advanced Audio Coding online for free. Fast, secure video conversion with no watermarks or registration.
TS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。
変換設定: ファイルを追加すると調整できます
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
TS から AAC への設定
- エンジン
- メディア
- 設定
- 調整できる設定: 12
- Trim Start
- Trim End
- Volume
- Fade In
- Fade Out
- Bitrate
- Sample Rate
- Channels
- Normalize Volume
- Audio Channels
- Reverse Audio
- Strip Metadata
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、.ts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.aacファイルをダウンロードしてください。
TSからAACへの変換について
MPEG Transport Stream files commonly carry multiple audio tracks alongside video: typical broadcast TS recordings include stereo, surround sound, and sometimes audio description channels. Converting TS to AAC extracts the audio portion and encodes it in Advanced Audio Coding, the successor to MP3 that delivers better sound quality at equivalent bitrates using spectral band replication and parametric stereo.
TSをAACに変換する理由
Extracting audio from TS recordings is essential when you want the soundtrack, dialogue, or music from a TV capture without the multi-gigabyte video data. AAC is universally supported across iOS, Android, Windows, macOS, and every modern web browser, making it the most compatible lossy audio format available today.
主な活用例
- Extracting dialogue or commentary audio from recorded TV broadcasts
- Pulling concert or live performance audio from DVR recordings
- Creating podcast-ready audio from IPTV news captures
- Building an audio library from recorded radio simulcasts captured via DVB-T
- Extracting background music from TV shows for personal listening
仕組み
FFmpeg reads the TS container and identifies all audio elementary streams via PID filtering. The selected audio track — whether MPEG-2 Audio Layer II (common in DVB), AC3 (ATSC), or existing AAC — is decoded to PCM, then re-encoded using the AAC-LC encoder at the chosen bitrate (128-320 kbps). If the source is already AAC, stream copying is used to avoid generation loss. Sample rate is preserved at the original value (typically 48 kHz for broadcast audio).
品質とパフォーマンス
At 192 kbps AAC-LC, the output is audibly transparent for most content. Speech-heavy broadcasts sound excellent even at 128 kbps. If your TS contains AC3 5.1 surround, it will be downmixed to stereo by default — select a surround-capable format like M4A with HE-AAC if you need multi-channel output.
デバイス互換性
| Device | TS | AAC |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Native |
| iPhone/iPad | Partial | Native |
| 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 128 kbps for speech-only content like news broadcasts — it saves space without audible quality loss
- 2Choose 256 kbps or higher for music content extracted from concert or music show recordings
- 3If the TS contains AC3 surround audio, consider converting to M4A instead to preserve multi-channel layout
- 4Preview which audio track you want before converting if the TS has multiple language options
- 5Enable the normalize filter to even out volume differences common in broadcast audio
関連する変換
TS to AAC conversion efficiently extracts broadcast audio into the most widely supported lossy format, ideal for portable listening, podcasting, and archiving TV audio content.
TSとAACの比較
| 特徴 | TS | AAC |
|---|---|---|
| 正式名称 | MPEG Transport Stream | Advanced Audio Coding |
| 拡張子 | .ts | .aac |