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Special Multifilter Functions for the Forensics Version(s)

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  • Special Multifilter Functions for the Forensics Version(s)

    Special Multifilter Functions (forensics versions)

    06-09-2023, 06:46 PM
    Live Log to Disk Mode (DC Forensics Versions Only)


    You can now "Log to Disk" (to your hard drive) both the input and/or output content of the signal path being used in Live mode via the Multi-Filter. These logging features coupled with Live Preview can also be used as recording monitors when the speaker icon is clicked and used. You are able to listen and/or log the signal as you record. These logging features can be useful when it is necessary to create an archival recording of a surveillance or of a broadcast session. It is possible to log both the unprocessed and processed data simultaneously to your hard drive for later retrieval. To perform the Log to Disc functions, merely click on the appropriate Log button(s) that you want to set up. To log the raw source data, click on the “Log Input” button and it will become highlighted. To log the processed data, click on the “Log Output” button and it will become highlighted. You can log the Input and Output signals simultaneously if you desire by clicking and therefore activating both logging functions. Whenever you click on the "Live" button, whatever signals are being presented to the Multi-Filter will be logged to the disk under the Filename(s) indicated next to the “Log Input” and “Log Output” toggle buttons.
    Both input and output logging can be stopped and started during a live session, and neither has to be enabled when live mode is first started. Log to disk data will be appended to the files that are shown in the log filename boxes. If the Multi-Filter is closed and re-opened, a new temp filename will be selected in the log filename boxes. The Automatic VOX and Time/Date Stamp feature applies to both the input and output logging function when checked.
    Live Mode VOX Time/Date Stamp (Forensics Versions Only)


    By checking the box labeled Automatic VOX Time/date Stamp, DC Forensics10 will add a marker each time a recording starts in VOX mode. This is useful for remote location or surveillance recording. By enabling this function, the system will record only when audio is actually present to be recorded and each recording event will be marked with the exact time and date of the individual recording. This function is useful only in Live mode.
    Flashback (DC Forensics Versions Only)

    Flashback lets you quickly Review and Clean an audio stream Live without interrupting your recording


    Flashback is primarily designed to be used in real time intelligence gathering and Forensics surveillance situations. It is a feature that allows you to go back and listen to something that you may have heard during real time operation of the software that may be of immediate interest and needs rapid clarification, especially in covert military situations. Essentially, it is analogous to instant playback, instant review or instant replay. This feature is available when you are operating the Multi-Filter in Live mode and is only available in the Forensics version of the software. It uses RAM to store up to 300 seconds (5 minutes) of audio data in stereophonic 16-bit, 44.1 kHz format on a FIFO basis. Therefore, it will require about 53 Mbytes of available RAM in order to properly function. It can be operated with or without the log to disc function(s) activated. Faster sampling rates used in the Multi-Filter recorder will de-rate the available Flashback time availability. Flashback always operates on the output signal of the Multi-Filter. Therefore, signal processed data as set up in the Multi-Filter is fed into the Flashback buffer memory.

    The controls for the Flashback feature are as follows:
    • [*=1]Enable Flashback: Check this box to Enable the Flashback Function [*=1]Skip Backward: Moves the play pointer backwards in 5-second increments per click of the mouse. [*=1]Skip Forward: Moves the play pointer forwards in 5-second increments per click of the mouse. (Of course, this function only is operational after you have Skipped Backward first, else you would have a time machine on [*=1]This controls the amount of time that you can shift backwards from real time when you are monitoring via the Flashback memory. [*=1]Space Available: This indicates the relative amount of RAM which is available for the Flashback function which depends on the amount of “Skip Backwards” delay you have set.
    Available Flashback Time as a Function of Sampling Rate
    Sampling Rate 44.1 kHz 48 kHz 96 kHz 192 kHz
    Available Flashback
    Time
    5 Minutes 4.5 Minutes 2.3 Minutes 1.2 Minutes
    A Special Mono to Stereo Simulator preset using a set of comb filters can be found under the presets section of the multifilter.
    Note: You can delete filters (or all of the filters) from the

    signal path via commands found on the right mouse button.

    "Who put orange juice in my orange juice?" - - - William Claude Dukenfield
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