USB-3012™ and the USB-3012™- P25 Devices

Introduction

The Digital Voice Systems, Inc. (DVSI) USB-3012™, Multi-Channel USB Device capable of up to twelve full-duplex simultaneous encoder/decoder operations.

The USB-3012™ is available in three models allowing it to meet a wide variety of customer applications. The standard USB-3012™ USB Device features DVSI's most advanced AMBE+2™ vocoder, including DMR, dPMR and MotoTRBO. The P25 version offers APCO P25 interoperability.


Introduction

The Digital Voice Systems, Inc. (DVSI) USB-3012™, Multi-Channel USB Device capable of up to twelve full-duplex simultaneous encoder/decoder operations.

The USB-3012™ is available in three models allowing it to meet a wide variety of customer applications. The standard USB-3012™ USB Device features DVSI's most advanced AMBE+2™ vocoder, including DMR, dPMR and MotoTRBO. The P25 version offers APCO P25 interoperability.

USB-3012™ Technology

The USB-3012™ contains Digital Voice Systems' proprietary and patented Advanced Multi-Band Excitation AMBE® voice compression algorithm. The standard version USB-3012™ includes the same vocoder as found in DVSI's AMBE-3000™ vocoder chip. The USB-3012™ is also available equipped with other DVSI vocoders. The USB-3012™ enables users to explore the capabilities and benefits of DVSI vocoder technologies without investing in large amounts of engineering time and hardware prototypes.

The USB-3000™ provides a low cost alternative to a fully customized software implementation because it is available off the shelf and requires no up-front licensing fees or royalties. Now product designers, communication engineers and original equipment manufacturers can implement DVSI's AMBE-3000™ vocoder or the APCO Project 25 Enhanced Dual-Rate Vocoder into customized high performance, low-bit-rate communication systems, without risks and high development costs associated with DSP implementations.



The value of DVSI's USB-3012™ goes beyond its simplistic design. The USB-3012™ can also prove itself as a comprehensive, evaluation, test and development platform. Once a new product design is complete and manufacturing begins, the USB-3012™ can simulate actual system conditions of DVSI's AMBE-3012™ vocoder or the APCO Project 25 Enhanced Dual-Rate Vocoder and act as a calibrated quality control reference standard.

There are two versions of the USB-3012™ available, giving designers the abilty to select the model that best meets their application requirements.
Interoperable Vocoders USB-3012™ Models
USB-3012™ Standard USB-3012™ P25
AMBE-2000™ Chip Rates YES YES
AMBE-3000™ Chip Rates YES YES
MotoTRBO YES YES
DMR YES YES
dPMR YES YES
D-STAR YES YES
NXDN YES YES
APCO Project 25 Half Rate YES YES
APCO Project 25 Full Rate NO YES
TerreStar NO NO
MexSat NO NO
GlobalStar NO NO



USB-3012™ Standard Version

The standard version USB-3012™ contains Digital Voice Systems' proprietary and patented Advanced Multi-Band Excitation AMBE® voice compression technology. The standard USB-3012™ supports up to 12 simultaneous channels and is similar to DVSI's standard USB-3000™, they are fully interoperable with DMR, dPMR and MotoTRBO, plus they provide the flexibility to operate at data rates from 2000 bps to 9600 bps.


USB-3012™ P25 Version

The USB-3012™ P25 is similar to DVSI's USB-3000™ P25 and the USB-3003™ P25 except that it supports 12 simultaneous channels. These USB devices include DVSI's patented Enhanced Dual-Rate Vocoder technology that is fully interoperable with APCO Project 25 standard (TIA-102BABA). In addition to the APCO Project 25 rates, they also support most of the built in rates that are available on the standard version USB-3000™.

USB-3012™ Drivers

Similar to the USB-3000™ in operation. This version is configured to use generic drivers offered by Future Technology Devices International Ltd. (FTDI). FTDI has USB drivers for several operating systems. Please visit the FTDI website for more information.

The USB-3000™ offers a variety of speech and/or FEC rates to permit vocoder optimization within system requirements to deliver excellent voice quality with superior robustness to bit errors and acoustic background noise. In addition, the USB-3000™ includes a number of advanced features such as Voice Activity Detection (VAD), adaptive Comfort Noise Insertion (CNI) and support for DTMF tones.

The USB interface allows users to connect the USB-3000™ to a Windows based PC, to transmit/receive speech and compressed data, as well as, configure vocoder options and monitor vocoder status information. The USB-3000™ is designed so that all speech and channel data to/from the device is formatted into packets. The USB-3000™ sends a packet in response to every packet received. The packet interface used by the USB-3000™ is identical to the one used in DVSI's AMBE-3000™ Vocoder Chip. For more detailed packet information refer to the AMBE-3000™ vocoder chip manual.

Key benefits of the USB-3000™ Vocoder are:

  • Instant access to DVSI's AMBE® Vocoder Technology or DVSI's APCO Project 25 Vocoder Technology via USB.
  • Encode and decode files to/from a PC through the USB interface.
  • Full Control of the AMBE® Vocoder's advanced capabilities such as Soft decision FEC, Voice Activity Detection (VAD), adaptive Comfort Noise Insertion (CNI) and DTMF tones.
  • The USB device comes with sample control software and reference documentation.
  • Compatible with Window XP and Vista operating systems (other driver options available).
  • Process multple channels with additional USB-3000™'s.

Mechanical Specifications 

PC Connection USB Cable (Type A to Micro-B)
Power Connection +5 Volts DC @ 1.0 amp
Size 3.12 X 1.85 X 4.0 inches
Weight ~8.0 ounces

Complete Package

The USB-3012™ is a complete hardware package with software and documentation that allows the user to quickly install and begin to process speech data. Technical documentation includes a USB-3000™ Users manual and the AMBE-3000™ USB User's Manual.