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CEDAR Cambridge V8

Cambridge V8
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CEDAR Cambridge is a 64-bit, high resolution processing platform that offers a wide range of audio tools capable of cleaning up everything ranging from the earliest recordings to live broadcasts being transmitted today, giving you the power to address all of your audio restoration and speech enhancement needs. Completely modular, fully automated (when desired) and with its own timecode reader/generator, it can process many times faster than real-time and, with the optional Server Pack installed, can support multiple users simultaneously.

Based on the latest CEDAR Cambridge Series III hardware, Version 8 is another significant step forward, boasting numerous upgrades and improvements over previous versions. Most obviously, CEDAR Cambridge now supports video playback, allowing you to view the visual content of up to eight A/V files simultaneously while analysing and processing the audio contained within them.

At the architectural level, it boasts an expanded File Processing system, with powerful new region categories that hugely enhance its ability to perform independent processing on multiple regions of the audio and greatly extend its transcription capabilities. The system also offers improved output mapping, an expanded Hot Keys section, and it has been upgraded to play, record and process at 192kHz.

Alongside this, it offers numerous updates within its restoration and other processing modules, such as new tools in the enhanced Retouch 5™ and Respeed™, the addition of the ITU1770-2 and M-weighted standards in the Power Normaliser, plus a revised Adaptive Limiter™ that greatly extends the range of limiting and maximising effects obtainable.

With numerous other improvements, CEDAR Cambridge V8 remains the system of choice for post production houses, CD and DVD mastering studios, broadcasters, national sound archives and libraries, and many of the world's most important police and security forces.

Click here for a list of the latest updates in CEDAR Cambridge v8.

Series III Hardware
The latest CEDAR Cambridge Series III is a server-grade powerhouse capable of processing more audio, more quickly, and for more simultaneous users than ever before. Featuring 12 Xeon processing cores and a massive 32GB of RAM, the system will be even better suited to batch processing large bodies of audio in libraries and archives, as well as in forensic laboratories handling high volumes of surveillance material. It will also support multiple instances and multiple users more efficiently and, depending upon the number of processing paths and the number of processes running in each, this can lead to potentially huge increases in productivity.

The same increase in power is true when you consider the storage capability of Series III, which includes as standard 3TB of local storage capable of holding around 10,000 hours of uncompressed audio. This makes every Series III suitable for use as a restoration server in demanding environments such as national archives and libraries, in which a single CEDAR Cambridge system can simultaneously service the needs of numerous studios and users.

The Timecode Automation Controller
The dedicated timecode reader ensures that processed audio always remains aligned to video, so that CEDAR Cambridge will work in harmony with any audio or video workstation. It also provides facilities for full automation of all CEDAR Cambridge processing parameters.

Audio Modules and Systems
There is a constantly growing family of CEDAR Cambridge processing modules. These are applicable in all areas of audio, and you can choose precisely the combination of modules that you require. Alternatively, we can offer recommended systems for film soundtrack restoration and post (the CEDAR Cambridge Film System), audio restoration for CD and DVD (the CEDAR Cambridge Mastering System), and two for audio forensic investigation (the CEDAR Cambridge Forensic Systems).

What's new in CEDAR Cambridge Version 8
Many aspects of CEDAR Cambridge V8 are almost unrecognisable when compared with previous versions. Most noticeably, the video playback system now extracts the audio content from a range of A/V formats and simultaneously opens the visual content in a separate window which remains synchronised with the audio while reviewing and processing. Multiple files can be handled up to a maximum of eight audio tracks, and the required number of video windows will be created automatically.

It also boasts an expanded file processing system. Not only can you define multiple regions within an audio file, you are now able to allocate these to multiple user-defined categories to differentiate between (for example) multiple microphones or scenes in a soundtrack, the various speakers in a conversation, or the speakers recorded during the course of a telephone call. Region categories are a huge aid in the performance of transcription, especially when used in conjunction with the Report Generator.

The system offers improved output mapping, an expanded Hot Keys section, and it has been upgraded to play, record and process at 192kHz. Other improvements include a a combined waveform/spectrogram view that shows both simultaneously to speed up the identification of audio events, a MIDI Note scale to augment the standard frequency axes, harmonic markers to aid the use of modules such as debuzz and the EQs, improved rendering and looping, and greater efficiency when handling large numbers of edits in modules such as Retouch 5.

Updates and improvements to existing modules
Version 8 also offers numerous updates within its restoration and other processing modules, such as new tools in the enhanced Retouch 5™ and Respeed™, the addition of the ITU1770-2 and M-weighted standards in the Power Normaliser, and a revised Adaptive Limiter™ that greatly extends the range of limiting and maximising effects obtainable.

Retouch 5™

Boasting numerous improvements, Retouch 5 introduces Previewing and a new Volume mode, which allow users to process - and listen exclusively to - selected areas of the spectrogram. There's also a new Pitch Shifter in the Patch and Copy modes. This invokes a genuine pitch shift algorithm that takes into account the relative pitch of components within the audio selection, greatly aiding the correction of errors in harmonically rich material. There's also a new paintbrush mode, and this allows you to pinpoint problems or draw broad sweeps to identify complex sounds such as aircraft flying overhead, or birdsong. Used together with the new MIDI Note scale, these tools even allow you to correct the pitches of incorrect notes within musical material.


With two powerful new functions - Hold and Invert - Respeed is now capable of creating a speed correction template using one audio file and applying it to another. Amongst other things, this allows users to correct the speed of multi-track material held in separate files before mixing. The new version is also able to invert a template and reapply it, which makes it possible to correct unusual problems such as wandering tones before returning the audio to its original state.

Respeed performs speed correction by identifying - or by allowing the user to identify - unwanted pitch changes contained within the presented audio. The benefits of this can include greater pitch stability and improved intelligibility.

Adaptive limiter 2

In response to feedback from our customers, we have enhanced the Adaptive Limiter, making it possible to apply even more limiting while retaining the integrity of the original audio. Not just a limiter, it's fair to say that the Adaptive Limiter is now an extremely flexible maximiser too, capable of pushing your audio far further than before without introducing unpleasant artefacts.

Power Normaliser 2

Featuring two further loudness standards, the Power Normaliser is now even more flexible for broadcast and cinematic production.

ITU1770-2 uses a 'gated loudness' approach that omits quiet passages (such as the gaps between utterances) from the gain calculations, making it particularly suitable for speech. In addition to this, there's now an M-weighted calculation, the standard being adopted by the film industry to assess audio loudness when listening at cinema playback levels.

Putting it all together
CEDAR Cambridge V8 is immediately available and runs on legacy CEDAR Cambridge Q systems as well as the latest CEDAR Cambridge Series III hardware running Windows 7 Ultimate 64-bit. Users are advised to upgrade to the latest specification to take advantage of all the new features.

As always, software upgrades to both the core system and to existing modules are provided free of additional charge to existing users. A full set of OS and hardware upgrade options are also offered.

Summary of major updates

Major enhancements  

Upgraded modules

  • Video playback
  • Region categories and rendering
  • Improved Frequency markers
  • Combined spectrogram/waveform view
  • MIDI Note scale
  • Improved channel mapping
  • 192kHz capabilities
  • Retouch 5
  • Respeed
  • Adaptive Limiter 2
  • Power Normaliser 2