CEDAR 20



The CEDAR-20 Production System supported a range of real-time processes that preceded and later complemented the major CEDAR for Windows functions. Hosted by a conventional PC running DOS, and powered by the twin 40-bit floating-point DSPs of the CEDAR ProDSP/R-20 board, the system offered a full range of audio restoration, equalisation and dynamics processing modules. All of these operated in real time, allowing easy A/B comparison of the processed and unprocessed signals. Despite being deleted from the CEDAR price list, the system is still widely used in many restoration environments worldwide.


The ProDSP/R-20, and upgrading to CEDAR for Windows.

The ProDSP/R-20 is now deleted, but CEDAR for Windows will access existing boards and treat them as ProDSP/E Expansion boards. Because no trade-in of the ProDSP/R-20 is required it is simple and cost-effective to upgrade from a DOS-based CEDAR system to a full CEDAR for Windows suite running multiple applications simultaneously. You will, however, require a ProDSP/C Console board to run the new system. Please refer to the CEDAR for Windows pages, or contact your local dealer, for further information.

The ProDSP/R-20 offers full 24-bit I/O when used as a ProDSP/E and initialised under CEDAR for Windows.
It returns to 20-bit operation when used to host any CEDAR-20 process.

Specification:

  • AES/EBU and SPDIF I/O
  • 120dB or 144dB dynamic range, dependent upon application
  • 44.1kHz, 48kHz, 32kHz sampling rates supported
  • Audio connections via 15-way D-connector (breakout cables supplied)
  • Twin floating point AT&T DSPs with 1Mb zero wait-state RAM
  • 40-bit maximum internal resolution
  • >750dB DSP Dynamic range
  • 25MFlops applied per audio channel

  • CEDAR-20 Software Modules

    All CEDAR-20 Software Modules are now deleted and each has been superseded by a CEDAR for Windows equivalent.

    Running CEDAR-20 under Windows 3.x

    If you have both CEDAR-20 and CEDAR for Windows you can run them simultaneously under Windows 3.x. In this case, your ProDSP/R-20 will support the CEDAR-20 software modules, and it will not appear in the CEDAR for Windows console.

    Running CEDAR-20 under Windows 95

    It is not possible to run CEDAR-20 and CEDAR for Windows simultaneously under Windows 95. However, you can run CEDAR-20 as a stand-alone DOS application under Windows 95 provided that CEDAR for Windows is not loaded.