Sonifex RB-TGHDB Multi-channel HD Tone Generator, BNC Outputs

Vendor: Sonifex
Sonifex RB-TGHDB Multi-channel HD Tone Generator, BNC Outputs An 8-channel audio tone generator called the RB-TGHD can identify lines in multi-channel audio systems, such as the 5.1 and 7.1 surround sound systems commonly...

Sonifex RB-TGHDB Multi-channel HD Tone Generator, BNC Outputs

An 8-channel audio tone generator called the RB-TGHD can identify lines in multi-channel audio systems, such as the 5.1 and 7.1 surround sound systems commonly used in high-definition TV shows. Channel identification and related levels can be quickly ascertained by utilizing a variety of commonly used industry standard tone sequences, such as the EBU R49, GLITS, and BLITS tones. A broadcaster mixing multiple audio channels into a stereo feed can also highlight the proper channel arrangement in fold-down mixes.

The RB-TGHD supports 2, 4, 6, and 8 channel configurations. Every audio tone sequence that is available for each channel configuration can be chosen manually or automatically cycled through, and a loop mode allows tones to be replayed in patterns. These settings are selected by a bank of four pushbuttons on the front panel, and the corresponding LEDs show the setting that is currently in use. Eight LEDs on the front panel, numbered 1 through 8, as well as L, R, C, LFE, LS, RS, LR, and RR, show which channel is now playing audio.

The RB-TGHD is available in two variations, each providing both analogue and digital audio outputs. The RB-TGHDX offers balanced AES/EBU digital audio outputs on 3 pin XLR connectors and the RB-TGHDB has unbalanced digital audio outputs on BNC connectors. Both types provide 8 balanced analogue outputs on 3 pin XLR connectors. A wordclock synchronising input on BNC connector allows the digital outputs to be synchronised to an external signal. Optionally, an RB-SYA or RB-SYD video sync board can be fitted, to synchronise the unit to either an analogue or digital sync signal. A SYNC LED on the front panel indicates when the unit is synchronised to the external signal. The audio level line-up of the RB-TGHD can be adjusted from 0dBu to +24dBu in 1dBu steps (ref FSD) to suit different environments via the front panel mounted DIP switches. Changing the audio line-up does not affect the gain relationship between each channel, ensuring that correct levels through the target system can be maintained. These switches also provide settings for digital sample rate which ranges from 32 kHz to 192 kHz, and digital sample width which is either 16 bit or 24 bit.

The serial port allows the RB-TGHD to be connected to a PC running SCi, the Sonifex Serial Control Interface. This allows full control of the unit and the ability to generate a user defined audio tone sequence. In addition, a remote port on the rear provides a simple interface to control the unit and has several outputs to indicate which tone sequence is active.

Analogue Output Impedance:
Digital Output
110Ω balanced
75Ω unbalanced
Dynamic Range: >100dB
Max Output Level: +24dBu
Distortion & Noise: <-85dB THD+N at 1kHz
Crosstalk: <-110dB (20Hz to 20kHz) for analogue outputs

Front Panel Controls

Channels: 2, 4, 6 or 8
Sequence Mode: Auto or Manual
Sequence: EBU R49 stereo line-up
GLITS stereo line-up
BLITS stereo line-up
EBU R49 channel ID
BLITS channel ID
User defined (using SCi)
Sequence Loop Mode: On or Off (enables looping of
current sequence)
Digital Sample Frequency: 32kHz, 44.1kHz, 48kHz, 88.2kHz 96kHz, 176.4kHz or 192kHz (via DIPswitches)
Digital Sample Width: 16bit or 24bit (via DIPswitches)
Audio Line-Up: 0dBu to +24dBu in 1dB steps ref FSD (via DIPswitches)
Channel Identification: LEDs indicating 1-8 and L, R, C,
LFE, LS, RS, LR and RR

Rear Panel Connections

Analogue Outputs: 8 x XLR 3 pin male (balanced)
Digital Outputs: 4 x AES/EBU XLR 3 pin male (balanced) or
4 x BNC female (un-balanced)
Digital Input: Wordclock on BNC
Remote I/O Port: 25-way ‘D’-type socket 17 inputs, 7 tally outputs
Serial Comms Port 9-way ‘D’-type socket
Mains Input: Filtered IEC, continuously rated 85-264VAC, 47-63Hz, 60W peak, 30W average
Fuse Rating: Anti-surge fuse 1A 20 x 5mm

Equipment Type

RB-TGHDB Multi-Channel HD Tone Generator with BNC Digital Outputs

Physical Specification

Dimensions (Raw): 48cm (W) x 15.8cm (D*) x 4.3cm (H) (1U)
19" (W) x 6.2" (D) x 1.7" (H) (1U)
Dimensions (Boxed): 59cm (W) x 27.5cm (D*) x 11cm (H)
23.2" (W) x 10.8" (D) x 4.3" (H)
Weight: Nett: 1.3kg Gross: 1.9kg
Nett: 2.9lbs Gross: 4.2lbs
* Note that this product is deeper than standard Redboxes


RB-SYA: Analogue video sync board (NTSC, PAL & SECAM)
RB-SYD: Digital video sync board (SD-SDI & HD-SDI)
RB-RK3: 1U Rear panel rack kit for large Redboxes