CVSD to WV Converter

Bring CVSD audio into WV — easy online conversion

Drop files here. 1 GB maximum file size or Sign Up
to

Settings

Set the number of audio channels. This setting is most useful when downmixing channels (e.g., from 5.1 to stereo).
Set the sample rate of the audio. Music with a full spectrum (20 Hz — 20 kHz) requires values not lower than 44.1 kHz to achieve transparency. More info can be found on the wiki.
Adjust the audio volume by selecting a number of decibels. For example, -10 dB decreases the volume by 10 decibels.

cvsd

CVSD (Continuously Variable Slope Delta modulation) is a voice digitization method standardized for military and telephony use by NATO and the CCITT during the 1970s. It encodes differences between consecutive samples as a single bit — 1 if the current sample exceeds the prediction, 0 otherwise — while a syllabic companding filter adjusts step size by monitoring runs of identical bits. Operating at 16 to 64 kbps, CVSD balances voice intelligibility against bandwidth, making it the encoding of choice for secure military links and tactical radio systems. The bitstream can be decoded with straightforward hardware, originally built into dedicated integrated circuits. One advantage is implementation simplicity — encoders and decoders need minimal resources, enabling real-time processing on low-power embedded hardware. Robustness under noisy conditions is another strength, as single-bit errors affect only local samples rather than corrupting entire frames. SoX provides software encoding and decoding support, letting modern systems work with legacy CVSD recordings from military archives and vintage telecommunications infrastructure.
read more

wv

WavPack is an open-source audio codec created by David Bryant, with version 1.0 released on August 15, 1998. What sets WavPack apart is its unique hybrid mode: the encoder can simultaneously produce a compact lossy file and a separate correction file that, when combined, reconstruct the original PCM stream bit-for-bit. Users who need portability carry just the lossy file; those who want archival quality keep both. The codec handles PCM audio from 8-bit to 32-bit integer and 32-bit floating point, with sample rates up to 768 kHz — specifications broad enough for DSD content, which WavPack 5 added support for. Compression ratios in pure lossless mode typically reach 40 to 55 percent of the original size, competitive with FLAC and often slightly better on certain material. Multicore encoding in later versions dramatically speeds up processing on modern hardware. The open-source library ships under a BSD license and has been integrated into foobar2000, VLC, FFmpeg, and numerous other tools. WavPack also supports rich metadata through APEv2 tags, embedded cue sheets, and ReplayGain values, covering the organizational needs of even the most meticulous music library.
read more
Facebook Amazon Microsoft Tesla Nestle Walmart L'Oreal

Any Device

Convert CVSD to WV from any device — desktop, laptop, tablet, or phone. All you need is a browser and internet connection.

Web-Only Tool

Everything happens in your browser — no plugins, no downloads, no desktop software. Just open the page and convert CVSD to WV.

Better Compatibility

CVSD is a niche legacy format with minimal support. Converting to WV brings your audio into a format recognized by Foobar2000 and many other tools.

How to convert CVSD to WV

1

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

2

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

3

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

About formats

CVSD (Continuously Variable Slope Delta modulation) is a voice digitization method standardized for military and telephony use by NATO and the CCITT during the 1970s. It encodes differences between consecutive samples as a single bit — 1 if the current sample exceeds the prediction, 0 otherwise — while a syllabic companding filter adjusts step size by monitoring runs of identical bits. Operating at 16 to 64 kbps, CVSD balances voice intelligibility against bandwidth, making it the encoding of choice for secure military links and tactical radio systems. The bitstream can be decoded with straightforward hardware, originally built into dedicated integrated circuits. One advantage is implementation simplicity — encoders and decoders need minimal resources, enabling real-time processing on low-power embedded hardware. Robustness under noisy conditions is another strength, as single-bit errors affect only local samples rather than corrupting entire frames. SoX provides software encoding and decoding support, letting modern systems work with legacy CVSD recordings from military archives and vintage telecommunications infrastructure.
Developer: CCITT / NATO
Initial release: 1970
WavPack is an open-source audio codec created by David Bryant, with version 1.0 released on August 15, 1998. What sets WavPack apart is its unique hybrid mode: the encoder can simultaneously produce a compact lossy file and a separate correction file that, when combined, reconstruct the original PCM stream bit-for-bit. Users who need portability carry just the lossy file; those who want archival quality keep both. The codec handles PCM audio from 8-bit to 32-bit integer and 32-bit floating point, with sample rates up to 768 kHz — specifications broad enough for DSD content, which WavPack 5 added support for. Compression ratios in pure lossless mode typically reach 40 to 55 percent of the original size, competitive with FLAC and often slightly better on certain material. Multicore encoding in later versions dramatically speeds up processing on modern hardware. The open-source library ships under a BSD license and has been integrated into foobar2000, VLC, FFmpeg, and numerous other tools. WavPack also supports rich metadata through APEv2 tags, embedded cue sheets, and ReplayGain values, covering the organizational needs of even the most meticulous music library.
Developer: David Bryant
Initial release: August 15, 1998

Frequently Asked Questions

Why should I switch from CVSD to WV?

CVSD is a legacy format that most audio players cannot handle. Converting to WV gives you lossless and hybrid modes.

Which software opens WV recordings?

You can open WV with Foobar2000, VLC, Winamp, and WavPack command-line tools.

Does CVSD to WV conversion affect quality?

WV preserves audio data faithfully. Since CVSD already has limited fidelity, the WV output matches the original quality exactly.

Is CVSD to WV conversion available on all platforms?

It works on any platform — desktop or mobile. Just open your browser, upload the CVSD recording, and convert to WV.

Is my CVSD audio kept private during conversion?

Your uploaded CVSD recordings are deleted immediately after conversion. The resulting WV outputs are removed within 24 hours.

Do I need to install anything for CVSD to WV?

No installation required. The converter runs entirely in your web browser — just upload, convert, and download.