Prima LT digital audio codec

Prima LT Photo

The Prima LT digital audio codec offers the same superb audio specifications as MUSICAM USA's CDQPrima line of codecs. With MUSICAMÒ enhanced MPEG Layer 2, MPEG Layer 3, and G. 722, Prima LT offers ISDN connectivity at bit rates ranging from 56 to 128 kb/s. Bit rates from 24 to 384 Kbps are supported with other digital transmission facilities.
Unlike other audio codecs, the microprocessor-controlled Prima LT is equipped with powerful programming functions. Using Prima Logic Language you can program your Prima LT to perform functions such as:
  • Automatic call configuration
  • Automatic algorithm detection
The Prima LT uses plug-in modules allow you to connect directly to ISDN or to any digital transmission system with available V.35, X.21 or RS422A interfaces. The Prima LT’s broadcast mode allows you to send two independent audio channels to two locations, or send the same the monaural program to two locations simultaneously.

Other features include:

  • Universal power supply -- no need to change power supply frequency and voltages
  • Universal terminal adapter -- no need to change ‘ROM’ chips when taking your Prima LT to different countries
  • Gold plated audio connectors and twenty-four bit A/D and D/A converters insure superb audio specifications. Our advanced audio circuitry yields remarkable performance – 20 to 20 kHz bandwidth with better than 92 dB signal-to-noise ratio and 0.01% THD+N.
  • AES/EBU or S/PDIF digital audio I/O is available. Built-in high-quality rate adapters allow 24.05, 32, 44.1 and 48 kHz digital audio sampling rates with internal or external synchronization.
  • Fully compatible MUSICAM-enhanced MPEG layer 2, MPEG layer 3 and G.722 algorithms support bit rates from 24 through 384 kb/s and sampling rates from 16 to 48 kHz. CCS Inverse Multiplexing and H.221 BONDING protocols are standard. The Prima LT is fully Eureka DAB compatible.
  • Storage for 256 Speed Dial and Quick Configuration entries. Each Speed Dial entry contains all encoder and decoder configuration information and up to two ISDN phone numbers. The Prima LT comes pre-programmed with over three dozen of the most use configurations, including configurations used to connect to other manufacturers products.
  • Storage for up to 20 ISDN TA configurations, each includes all TA settings, SPID and ID numbers.
  • Ancillary data includes far end remote control, RS232 data and 12 virtual control lines.
  • Virtual actions can execute the sequence of commands on any connected Prima LT or CDQPrima.
  • Near and far-end remote control using an attached terminal or PC with RS232 or RS485 support. RS485 remote control allows up to 30 Prima LT or CDQPrima units to be controlled by the same PC.
  • An optional WindowsÒ remote control program is available for easy point-and-click operation.
  • Software updates, available on our Internet Web Site, can be located directly into the Prima LT through the remote control port.
  • All functions can be password protected with unique multi-level security system.
The Prima LT codec offers contribution quality, with MPEG Layer 2 and MPEG Layer 3 coding at the highest possible bit rates. The Dual Channel Send mode of the Prima LT allows two separate programs to be broadcast on separate ISDN "B" channels.

Features

Prima LT rear panel
Prima LT rear panel

Easy to Use:

  • Extra-large keypad with single-button status keys and keypad beeper.
  • Extra large, backlit LCD display with adjustable contrast.
  • Eight status indicators for connect state, framed state, Bit errors and audio levels.
  • Two user-programmable function keys.
  • 256 Speed Dial addresses configure the encoder and decoder and dials ISDN number(s).
Modularity:
  • One slot for interchangeable network interface card. Five different interface cards are available: three internal INSD terminal adapters, plus two interface cards supporting X.21, RS530, RS422 and V.35/
  • Plug-in A/D and D/A converters allows for upgrade to the latest technology.
Standards:
  • ISO/MPEG-1/2 Layer2 at 16, 24, 32 and 48 kHz sampling, 24 to 384 kb/s.
  • ISO/MPEG-1/2 Layer 3 at 24, 32 and 48 kHz sampling, 24 to 320 kb/s, certified by FHG.
  • ITU G.722
  • AES/EBU and S/PDIF with 32, 44.1 and 48 kHz sampling available as an option.
  • ITU J.52 Inverse Multiplexing up to 2X64 kb/s, H.221 BONDING.
  • ADR and DAB compliant.
Intelligence:
  • Prima Logic Language for automatic functions.
  • Event-to-action logic.
  • Full remote control capability.
  • Bit-error and out-of-frame detectors.
Other Features:
  • Digital audio sampling rate converters
  • Stereo Analog I/O, 24 bit A/D and D/A converters, gold plated Neutrik audio connectors
  • Scale Factor Protection ACE and SCF-CRC of ADR and DAB standard
  • Cursor control, dial, status and function keypad
  • Automatic rate adaptation
  • MC68020 Integrated Support Processor for Monitor and Control.
  • Control and algorithm software upgrades through RS232
  • Full remote computer control via RS232 or RS485
  • Asynchronous RS232 ancillary data
  • Programmable summary alarm relay
  • 19" rack mountable, rack-mount ears included.

Prima LT specifications