QT-2 Channel Talker

Select one of three preset frequencies. Default frequencies are 1000 Hz, 400 Hz, and 250 Hz. 

Select one of three preset amplitudes. Default amplitudes are 4 dBu, 0 dBu, and -10 dBu.

Select Tone with Voice ID, Continuous Tone OFF, and Tone and ID OFF. 

Select Internal Tones/Sweep or External Audio sources. 

External audio input allows you to use your own special tone or audio. Voice ID function with both internal external audio sources.

Convenient 20,000 Ohm balanced input and 50 Ohm balanced output.

Standard full size XLR audio connectors. No special adaptors needed. 

Internal frequencies are digitally synthesized and crystal controlled.

Amplitudes are controlled with a digital potentiometer. No wiper or switch noise.

Compact low-voltage (12VDC) design can be easily used with mobile equipment. 

Handy Front Panel LED indicates when markers are being sent. 

Channel Talker Voice ID can say almost anything. Phonemes are optimized for English, but can be utilized to speak several different languages.

Create common messages to be played on each channel and a unique message for each channel.

Text-to-phoneme dictionary with over 125,000 words allow easy construction of phrases to speak.

Customize your presentation by employing the available 72 speech. elements (allophones), 43 sound effects, and 12 DTMF Touch Tones.

Programmable pause allows programming a quiet period for noise testing.

Voice ID information is downloaded to non-volatile EEPROM memory.

Change the message as often as needed. 1,000,000 write cycles typical.

Override and emulate all four of the front panel functions including selecting the external input. 

Select one of 5 frequencies. Programmable frequency selection range is 45 Hz to 7812 KHz.

Select one of 5 amplitudes. Programmable amplitude selection range selection is -10 dBu to 8 dBu.

Program different frequencies and amplitudes into the front panel switches. 

Any changes made to the control settings are retained indefinitely by saving them to EEPROM memory.

Tone: Single internal audio tone is generated from a crystal controlled square wave filtered with an 8 pole Bessel digital filter sampled at 64 times the fundamental frequency. The third harmonic is attenuated more than 60 dB. Switch selectable frequencies are 1000, 400, and 250 Hz. Sweep function sweeps from 180Hz to 7.8KHz in 250 steps.

Level: Maximum usable audio level internal or external is 8 dBu. Switch selection for internal tone of 4, 0 and -10 dBu. Level switch does not affect external input signal.

Voice ID: Synthetic voice generator with 72 speech elements (allophones), 43 sound effects, and 12 DTMF Touch Tones. Configurable voice loudness, speed, and pitch characteristics. LED indicates when Voicing on channel 1.

Memory: Speech memory for 218 phonemes (about fifteen seconds of speech). A Phrase can call other phrases to optimize memory usage. 16 phrases maximum, with 5 being typical.

External Audio/Internal Tone or Sweep: Select from either internal tone or user provided external audio. Voice ID functions with both internal and external audio sources. Sweep frequency: 6 stepped tones 125Hz, 250, 500, 1000, 2000, & 4000Hz nominal each presented for 500ms continuously repeating .

Input/Output: External Input: balanced 20,000 Ohm. Output balanced 50 Ohm. Unity pass-through gain nominal @ 600 ohm load.

Universal Serial Bus (USB) Interface: Standard USB-B interface. For connection to PC and customizing program. Interface is USB 1.0 compliant.

Input Voltage: 12VDC nominal or 9VAC to 12VAC 50/60Hz. Connector 2.1mm X 5.5mm X 11mm (inside x outside x Length). Compatible with Automobile battery voltage (13.2VDC).

Input Current: 200ma Maximum. 

Input power adapter: 120VAC converter to 12VDC @ 200 ma. 

Temperature: 0 deg C to 50 deg C (32 F to 125 F) non condensing.

Size L X W X H:  185mm x 107mm x 60mm (7.25in x 4.22in x 2.4in). Handsome black anodized aluminum box with gold text that won't rub off.

Software requires Windows XP,2000, NT, 98 or 98SE. 333 MHZ processor, 64MB RAM, 25M Bytes of Disk space, 800x600 monitor or larger, and mouse.

Program up to 218 phonemes into 16 phrases. Configurable voice loudness, speed, and pitch.

Select words from dictionary, edit word sounds, and create new words and sounds.

Play phrases, words, and individual phonemes through the Channel Talker audio outputs.

Text-to-phoneme dictionary over 125,000 words for text-to–speech simplicity.

USB drivers are included.

Complete computer remote operation of the Channel Talker through a USB interface.

Selection of one of five preset frequencies, Default: 60, 250, 400, 1000, and 2000 Hz.

Selection of one of five preset Amplitudes. Default: -10, 0, 2, 4, and 8 dBu.

Select TONE ONLY, ID & TONE OFF, ID & TONE ON, and SWEEP modes.

Select Internal tone/sweep or External audio source. 

Sweep mode injects frequency Sweep with 6 stepped tones: 125Hz, 250Hz, 500Hz, 1000Hz, 2000Hz, & 4000Hz nominal each presented for 500ms continuously repeating .

Change any of the preset frequencies. Range: 45 Hz to 7812 Hz

Calibrate/change any of the preset amplitudes. Range:  – 10 dBu to 8 dBu in 99 steps.

Calibrate/change External input pass-through gain Range: 0.13 to 1.3.

Restore factory default settings or last saved calibration settings.

Save all changes/calibrations in non-volatile EEPROM memory for permanent use.

USB drivers are included.