M2TS to CVU Converter

Extract unfiltered CVSD audio from M2TS Blu-ray video

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Raw Signal Data

CVU preserves unfiltered CVSD audio. Extract M2TS voice data in its raw form for signal processing and analysis.

Quick Processing

Audio extraction bypasses video data entirely. CVU output from M2TS is ready in moments.

Server-Side Work

All extraction and encoding runs on our servers. Your hardware stays free during M2TS to CVU conversion.

How to convert M2TS to CVU

1

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

2

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

3

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

About formats

M2TS (MPEG-2 Transport Stream) is a container format used primarily for multiplexing audio, video, and other data on Blu-ray Disc media. The format is specified as part of the Blu-ray Disc Audio-Video (BDAV) standard developed by the Blu-ray Disc Association, with commercial Blu-ray products launching in 2006. M2TS files wrap content in MPEG-2 transport stream packets with an additional 4-byte timestamp header prepended to each 188-byte packet, resulting in 192-byte packets that enable more precise timing and error recovery during optical disc playback. This extended packet structure helps maintain synchronization when dealing with the variable read speeds inherent to disc-based media. M2TS supports the major Blu-ray video codecs including H.264/AVC, MPEG-2, and VC-1, alongside audio formats such as Dolby TrueHD, DTS-HD Master Audio, and LPCM for lossless surround sound. The container is also used by AVCHD camcorders for recording high-definition footage, making it common in both consumer disc playback and video production workflows. M2TS files preserve chapter markers, subtitle streams, and interactive menu data within the transport stream. Reliable synchronization mechanisms and support for high-quality codecs make M2TS well-suited for archiving high-definition content where preserving full source quality is essential.
Initial release: 2006
CVU is an unsigned variant of the CVS telephony audio format, differing in how delta-encoded values are represented in the binary stream. While CVS stores slope delta values as signed quantities, CVU treats them as unsigned, shifting the numerical interpretation of each sample. Both share the underlying CVSD modulation technique — 1-bit adaptive delta coding where step size varies according to recent output bit patterns — operating at comparable rates, typically 16 kbps for narrowband voice at 8 kHz. The signed-versus-unsigned distinction matters at the decoder, where correct interpretation determines proper waveform reconstruction. CVU files appear in telephony and embedded communication contexts where hardware adopted the unsigned convention. A practical advantage is straightforward interfacing with systems using unsigned arithmetic natively, avoiding sign extension in decoders. Like its signed counterpart, CVU achieves extreme bandwidth efficiency, compressing voice into compact bitstreams for constrained links. SoX supports CVU, providing a reliable path for converting these niche telephony recordings into modern formats for analysis or archival.
Developer: CCITT / ITU-T
Initial release: 1970

Frequently Asked Questions

Why convert M2TS to CVU?

CVU provides unfiltered CVSD delta modulation output — useful for raw voice analysis and telecom signal processing work.

How does CVU differ from CVSD?

CVU is the unfiltered variant of CVSD. The raw output preserves all signal details before any post-processing filtering.

What opens CVU files?

SOX audio toolkit and specialized signal processing applications can read and analyze CVU audio data.

Is CVU for specialized use?

CVU is highly specialized — used in voice signal research, military communications analysis, and raw CVSD data processing.

Can I convert several M2TS files?

Upload multiple M2TS files and extract CVU audio from each simultaneously for efficient batch processing.