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NTi TalkBox

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This item has either been discontinued by the manufacturer or is no longer available to purchase on our website.

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(800) 771-8330

Calibrated Digital Acoustical Source

Overview

NTI TalkBox greatly simplifies the acoustical feed of the STI-PA intelligibility test source signal into closed sound reinforcement systems. It presents the standardized voice-like acoustical signal emission simulating a human talker according to IEC 60268-16, combined with a TNO certified speech intelligibility signal at standardized levels.

NTI TalkBox features human head-like dimensions and is based on a Solid-State-Generator with CF-Card. It perfectly equalizes the STI-PA test signal and replays it at the precisely correct playback sampling rate, also minimizing systematic errors through the internal amplifier and internal precision loudspeaker. Due to the required overall accuracy of +/-1 dB over the relevant frequency range, each TalkBox is individually equalized and calibrated for precision output. The radiation characteristic complies with the ITU-T P.51 in wide ranges. The built-in combination of solid state generator and DSP ensures highest playback accuracy and lowest sample frequency deviations with minimized jitter effects.

Specifications:

  • Waveforms- Up to 15 different signals- Waveforms can be added / changed by the user- Factory signal set: NTI STI-PA test signal, White Noise, Pink Noise, Delay Time Measurement Test Chirp, Sine 1 kHz

  • Line Out- XLR, balanced 100 Ohm, unbalanced 50 Ohm- Maximum output level: +18 dBu, 1 kHz file with 60 dB @ 1 meter: typicaly -11 dBu

  • Line Input- XLR, balanced 38 kOhm- Maximum input level: +18 dBu- Internal delay from XLR input to speaker: 59 ms

  • CF-Card- 128 MB included, FAT32 formatted- Wave File format: 16 Bit, 44.1 kHz mono

  • Acoustical Flatness:STI-PA band levels (in axis):- typ. < +/- 0.5 dB @ 24C- typ. < +/- 1.0 dB @ 10C - 30C

  • Acoustical Output Level- STI-PA: 60 dBASPL @ 1 m +/- 0.5 dB, according to IEC60268-16- STI-PA band sensitivity gradient: - 0.07dB / C (average)- Others see track list in user manual

  • Power Supply- 10 - 18 VDC, 10 Watt- External switching power supply included (for worldwide usage 100V .. 240V)

  • External Mute: Jack 3.5 mm (1/8"), floating switch required

  • Dimensions (LxWxH): 150 x 150 x 175 mm (5.9 x 5.9 x 6.9 inch)

  • Weight: 3.5 kg

  • Temperature: 0 to +45 C (32 to 113 F)

  • Accessories: Mains Power Adapter, 128MB CF-Card and Bag included

Documents

Q & A

Brand
NTi
Model
TalkBox
MFR Part Number
600 000 085
Product Category
Unit of Measure
EACH
Shipping Weight
10.00 lbs.
Page Views
1424
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