CEDAR Trinity 2

A major revision when compared with the original CEDAR Trinity system, CEDAR Trinity 2 offers a raft of significant enhancements over its predecessor, many implemented as a consequence of direct requests from customers in the fields of law enforcement, security and counter-terrorism. Two configurations are offered: CEDAR Trinity 2 itself, which can be used as a complete standalone surveillance system offering the full range of CEDAR Trinity 2 facilities, and CEDAR Trinity 2 Satellite, which allows multiple users to connect to a central CEDAR Trinity 2 record service for listening, enhancement, transcription and more.

Speech enhancement

Of course, we couldn’t undertake all of this work without revisiting the speech enhancement within CEDAR Trinity 2, and this now includes a greatly improved noise reduction process based upon our flagship FNR process. This makes it possible for all users - novices and experts alike - to obtain significantly better results than ever before.


We have improved the metadata capabilities of CEDAR Trinity 2 so that the user's ID is added invisibly to events, and the speech enhancement parameters are embedded as metadata in exports. For security and verification purposes, these allow investigators to know with even greater precision who did what, and when.


Other enhancements include improvements to the archiving feature, which now allows operators and administrators seamlessly to restore archived audio to its position in the original asset. This allows teams to revisit surveillance material at any time in the future. Archived audio can also be used to create new assets should this be required.

Erasure and live audio monitoring in different jurisdictions

To comply with the law in a number of jurisdictions, we have also added the ability to erase audio from assets, but only under strict conditions, and with the system reporting that this has been done. Of course, this feature can also be precluded for use in countries where erasure is not allowed. Likewise, we have added a switch that allows incoming audio to be monitored when no recording is taking place or (for use in jurisdictions where this is not allowed) that mutes the feed unless recording is taking place.

TVerify - file verification

For evidential purposes, CEDAR Trinity also offers a separate verification utility that can check the integrity of any project or archive. Exports as well as assets and archives are now cryptographically signed so that users can use the TVerify utility to see whether anyone has tampered with the audio, whether held in assets, in exports of specific portions of the audio (say, for evidential purposes), or in archives. If no evidence of tampering is found, the information contained with the audio can be then used with confidence.


CEDAR Trinity and CEDAR Trinity Satellite may be installed on any suitable PC, or supplied pre-installed by CEDAR Audio on rugged laptop systems.


Training courses on all aspects of CEDAR Trinity 2 are offered at CEDAR Audio in the UK. For details of these, please contact Alan French.

General features