MTS to MP3 Converter
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Supports: MTS
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Need help?How to Convert MTS to MP3
- Upload Your MTS File — Click "Choose Files" or drag and drop your MTS (AVCHD) video file. Only .mts files are accepted.
- Set Audio Quality — Under File Compression, the default for conversion is Quality Preset (Highest through Lowest). Other options: File Size Percentage (1-100% slider), Specific File Size (MB/KB), Custom Bitrate (enter any value in kbps), Constant Bitrate (32-384 kbps presets), or Variable Bitrate (MP3 ranges from 45k-85k up to 220k-260k).
- Adjust Audio Settings (Optional) — Set Audio Channel to Original, Mono, or Stereo. Change Audio Sample Rate (44100 Hz for CD quality, 48000 Hz for broadcast). The default audio codec is MP3.
- Trim (Optional) — Under Trim, set a Start Time and Duration in seconds or HH:MM:SS.sss format to extract a specific segment.
- Convert & Download — Click "Convert" and download your MP3 file.
Why Convert MTS to MP3?
MTS (MPEG Transport Stream) is the AVCHD format used by HD camcorders from Sony, Canon, Panasonic, and JVC. These files contain high-definition video with multi-channel audio (often AC3/Dolby Digital). Converting MTS to MP3 extracts just the audio, which is useful for saving audio from wedding or event recordings, extracting interview dialogue from camcorder footage, creating audio-only versions of lectures or presentations, and archiving the audio track from home videos without the large video file.
MTS Audio Extraction — What to Expect
| Source | Typical Size | Audio Track | MP3 Output |
|---|---|---|---|
| 1 hour HD camcorder footage | 4-8 GB | AC3 at 256-384 kbps | 15-30 MB |
| 30 min wedding recording | 2-4 GB | AC3 at 256 kbps | 7-15 MB |
| 10 min interview clip | 500 MB - 1 GB | AC3 at 192 kbps | 2-5 MB |
MTS vs MP3 Comparison
| Feature | MTS (AVCHD) | MP3 |
|---|---|---|
| Type | Video container | Audio only |
| Typical audio codec | AC3 (Dolby Digital) | MP3 (MPEG Layer 3) |
| Channels | Up to 5.1 surround | Stereo or mono |
| File size (1 hour) | 4-8 GB | 15-30 MB |
| Device support | Camcorders, Blu-ray players | Universal |
What bitrate should I use for camcorder audio?
MTS files typically contain AC3 audio at 256-384 kbps. For music or high-quality audio, extract at 192-256 kbps MP3. For voice/dialogue, 128 kbps is sufficient. The multi-channel surround sound is automatically downmixed to stereo MP3.
Does converting preserve surround sound?
MP3 supports stereo (2 channels) or mono only. The original 5.1 surround sound from the MTS file is downmixed to stereo during conversion. If you need to preserve surround sound, convert to AC3 or FLAC instead.
Can I extract audio from a specific part of the video?
Yes. Under Trim, switch to "Trim" and enter a Start Time and Duration. Use seconds (e.g., 300 for 5 minutes in) or HH:MM:SS.sss format (e.g., 00:05:00.000). This extracts only the audio from that segment.
Which camcorders produce MTS files?
Most AVCHD camcorders from Sony (Handycam), Canon (VIXIA/LEGRIA), Panasonic (HC series), and JVC produce MTS files. These are typically found in the PRIVATE/AVCHD/BDMV/STREAM folder on the camcorder's SD card or internal storage.
Can I batch convert multiple MTS files?
Yes. Upload multiple MTS files at once and they will all be converted to MP3 with the same quality settings. Each file is processed individually and available for separate download.