MTS to SD2 Converter

Extract Sound Designer II audio from MTS recordings online

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Format-Specific Output

SD2 serves SD2 format for legacy Pro Tools workflows. Extract the exact format your workflow requires from MTS sources.

Cloud Processing

Extraction runs on our servers — no specialized tools needed on your local machine.

Secure Handling

Uploaded MTS files are deleted after conversion. SD2 outputs are removed within 24 hours.

How to convert MTS to SD2

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose sd2 or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your sd2 file right afterwards

About formats

MTS is a file extension associated with the AVCHD recording format, jointly developed by Sony and Panasonic for high-definition consumer camcorders. Files with the MTS extension contain MPEG-2 transport stream data carrying H.264/AVC video at resolutions up to 1920x1080, paired with Dolby Digital (AC-3) or LPCM audio. The MTS designation is used when AVCHD content is accessed directly from the recording media, as opposed to M2TS files which typically refer to the same transport stream format in Blu-ray disc contexts. Consumer and semi-professional camcorders from Sony, Panasonic, Canon, and other manufacturers write MTS files into a structured directory hierarchy on memory cards or internal storage, accompanied by index and playlist files that organize clips for in-camera playback. The transport stream packaging includes timing information critical for maintaining audio-video synchronization and supports features like random access points for efficient seeking. MTS recordings preserve the full quality captured by the camera sensor, making them suitable as source material for editing workflows. The use of H.264 compression provides an effective balance between video quality and file size, enabling extended recording times on commonly available SD and SDHC memory cards. MTS files are recognized by all major video editing applications and can be imported directly into editing timelines, though some workflows benefit from transcoding to editing-optimized formats for smoother real-time performance.
Developer: Sony & Panasonic
Initial release: June 2006
Sound Designer II (SD2) is a professional audio format created by Digidesign around 1988 as the successor to the original Sound Designer format. For over a decade, SD2 was the standard interchange format in professional recording studios, especially those on Macintosh systems. It stores uncompressed linear PCM audio at up to 24-bit resolution with sample rates used in professional production (44.1, 48, 88.2, and 96 kHz). A distinctive technical trait is its reliance on the classic Mac OS resource fork for critical metadata — sample rate, bit depth, and channel configuration — while audio data resides in the data fork. This design worked elegantly within the Mac ecosystem but created portability challenges when files moved to Windows or Unix. A key advantage was SD2's support for multiple channels in a single file and tight integration with the Pro Tools editing environment, enabling non-destructive region-based editing. The format also carried loop points and markers, making it valuable for sample libraries. As Avid Technology shifted Pro Tools toward WAV and AIFF, SD2 usage declined, but millions of legacy session archives still contain SD2 files needing occasional conversion.
Initial release: 1988

Frequently Asked Questions

Why convert MTS to SD2?

SD2 provides SD2 format for legacy Pro Tools workflows. Converting extracts compatible audio from your MTS camcorder recordings.

What software handles SD2?

Specialized audio tools, SoX, and format-specific applications handle SD2 files for playback and processing.

Is SD2 widely supported?

SD2 serves specific use cases. For general audio needs, MP3, WAV, or FLAC are more broadly compatible.

Can I adjust encoding settings?

Yes — configure sample rate and encoding parameters before converting to match your target system requirements.

Is batch conversion available?

Upload multiple MTS files and extract SD2 audio from each simultaneously in one session.