The CTD-16 makes it possible for one person to setup or verify all the AES/EBU digital audio channels in his facility - easily, quickly, and accurately. The unit produces a hands-free audible sequential voice ID for each channel, eliminating the need for external generators or extra personnel to switch between sources. In addition to the voice ID's, the CTD-16 includes AUX channel tones allowing both narrow and wide band frequency response testing, and for spectrum analyzers, a pink noise generator is included. Finally, there is a modified sine wave output that can be monitored at the audio system output to verify that there has not been an audio phase reversal in the system. Audio phasing or polarity can be verified either visually (oscilloscope or hand-held video scope) or with an approved polarity detector (CL-1 Channel Listener).
Voice ID Phrase Download Software (Optional):
Channel Talker Voice overlay channel ID and Station ID are wave files. The Channel ID file can be custom programmed, providing the overlay information can fit in either 0.5 sec or 1.0 sec segments. The Station ID file can be any message from 0 to 16 seconds. Voice ID information is downloaded to non-volatile FLASH memory. Both messages are stored at 8K samples/sec.
Change the message as often as needed. 10,000 write cycles typical.
Voice ID Download Software Specifications:
Software requires Windows XP,2000 or later 333 MHZ processor, 128MB RAM, 25M Bytes of Disk space, 800x600 monitor or larger, and mouse.
Model-A: 16 Channels with prerecorded voice overlay, 3 AUX tones. Channels 1-16 are 1000Hz with prerecorded voice overlay. Blank Station/unit ID.
Model-B: All features above except: Channel 4 is 83.33 Hz, and all others 500Hz. All channels have prerecorded voice overlay.
Model-C: (Not Pictured) All features above with 4 AUX tones (Step-6), and two additional front panel rotary switches. Channel tone is switch selectable: 1000Hz, 500Hz, Aux Tones, and Mute. Voice overlays are switch selectable: Channel ID, Station ID, Both ID, and no ID. Front Panel power switch optional. All channels have prerecorded voice overlay.