Digital Voice Systems, Inc. (DVSI)

World leader in low-bitrate voice compression technology

More than 300 Million implementations worldwide

World leader in low-bitrate voice compression technology

More than 300 Million implementations worldwide

World leader in low-bitrate voice compression technology

More than 300 Million implementations worldwide

DVSI's patented AMBE® Vocoder technology delivers the highest quality voice compression in both software and hardware solutions


The lowest bitrate with the highest voice quality and intelligibility

Robustness against acoustic noise and bit errors

Support for DTMF tones and other advanced features

Interoperability with advanced digital radio and telephony standards

DVSI's Vocoder Technology


DVSI's voice compression technology is widely accepted as the vocoder of choice in bandwidth limited applications such as digital mobile radio and satellite telephony

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DVSI's Vocoder Hardware


DVSI's vocoder technology is available in hardware that enables original equipment manufacturers to produce low volume innovative designs with an array of advanced features without licensing fees and royalties

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AMBE™ Vocoder USB Stick

(Featuring the AMBE-3000™ Vocoder Chip)

The Digital Voice Systems, Inc. (DVSI) USB-3000™ is the perfect combination of the AMBE-3000™ Vocoder Chip with a USB interface. Connect the USB-3000™ to a Windows based PC's USB interface and get direct access to DVSI's AMBE-3000™ Vocoder Chip.

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DVSI Vocoder Chips

Digital Voice Systems Inc.'s Vocoder Chips provide implementations of the standard-setting AMBE®, AMBE+™ or AMBE+2™ voice compression technologies. DVSI's patented AMBE® voice compression software has been proven to outperform CELP, RELP, VSELP, MELP, ECELP, MP-MLQ, LPC-10, and other competitive technologies.

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Net-2000™ Voice Codec Unit

The Net-2000™ VCU is availble in four models, each equipped " with one of DVSIs patented vocoder technologies. By incorporating DVSI vocoder software with Ethernet network connectivity the Net-2000™ VCU is ideal for OEM digital-communication applications, including Voice Over Internet Protocol (VoIP), wireless telephony and voice-monitoring / recording products.

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DVSI's Featured New Product


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USB-3000™ RC

Parametric Rate Converter and Repeater for the AMBE+2™ Vocoder

Digital Voice System’s USB-3000™ RC features a parametric rate converter and a repeater making it capable of converting between or repeating any rate supported by AMBE+2™ Vocoder Technology. The USB-3000™ RC is an economical way to promote interoperability between AMBE®® vocoder communication networks, facilitate unlimited coverage areas and help deliver efficient data transmission. The USB-3000™ RC offers interoperability with a wide variety of mobile radio standards including APCO P25, DMR, dPMR and MotoTRBO applications as well as satellite communication networks such as TerreStar, MexSat and GlobalStar.


*** USB-3000™ RC -- $699.00 each ***

Learn more about the USB-3000™ RC Request a Quote from our Sales Department

Companies implementing DVSI Vocoder Technology


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