Radio Kol-Chai opts for DHD audio consoles

The headquarters based in BNEI Brak (east of Tel Aviv, Israel), Radio Kol-Chai, has chosen audio mixers and processing nuclei of Dhd as part of its transfer to new production studies.

The system has been composed of Broadcast Design, specialist in audio technology based in Jerusalem. Includes Four DHD SX2 consoles (two with 16 faders and two with 22 faders) and 11 TX2 compact multifunction tactile panels. Six of the 11 TX2 mixers are assigned for the use of the presenter and the producer in each study, plus two for the editing cabins, two for supervisors and one for the TV control room. Network processing and interconnection are carried out in núcleos DAD XC3.

Created in 1996, Radio Kol-Chai produces two channels of audio and video content: Radio Kol-Chai FM and Radio Kol-Chai Music. Radio Kol-Chai FM production includes news, live debates, podcasts and music, as well as general information and entertainment. The channels are broadcast six days a week at 93.0 FM for the entire center of Israel and at 92.8 FM for the Jerusalem district. Live and letter programs are also accessible in www.93fm.co.il For a much broader online audience.

Micha Blum, founder and general director of Broadcast Design, comments that “we have integrated four studies. Study 4 will be used for video production and is equipped with a 22 Fader SX2 DHD. Study 1 is for the general channel of Kol-Chai and study 2 for Kol Chai Music. Study 3 is intended for recording and can also function as a reserve presentation study. Each study and each locution cabin can be assigned to any channel. From the two editing cabins, it can also be used for the presentation of Top of the Hour news. ”

“Radio Kol Chai issues many programs, newsletters and news every hour from other places, such as his studies in Jerusalem or from a presenter at home. This requires a complex talkback management and codec between these locations and the producer, editor and technician of the headquarters of Bnei Brak. Monitoring, talkbacks, alarms and silence detection, in addition to their audio and production mixing functions, without the need for third -party equipment, ”he adds.

“The DHD system also allows to easily assign any of the control consoles of the control room to any study. The main study has a dedicated control room. This can be assigned to manage a live broadcast, for example, while the study is used to record a totally different production. We configure an automatic routing that manages the bidirectional talkbacks between presenter, producer and technician independently to more than eight audio codes. clear state indication to avoid any error. ”

“The transfer was the ideal time to integrate a more advanced interconnection architecture, since it increases the operational efficacy and simplifies the future expansion of the system. The signals of each study to the main control room are sent through APC Audio of DHD, which allows the connection of several audio channels using standard network cables. The system will also be used for the visual productions of Radio Kol-Cha. Taught Training to the Operations Team and Radio Kol-Chai support technicians, ”says Blum.

Intuitive controls

"DHD audio mixing consoles have worked very effectively for us during the last 10 years," summarizes the Kol-Chai Radio Director, Assaf Klein. “They are of robust construction and have intuitive controls supported by screen display and the signal level. That combination gives our operators the full confidence they need to work live. Our technical staff appreciates the ease with which each DHD mixer can be configured, in addition to the possibility of providing help connected by IP through the DHD Assist web application if necessary for an unusual production routine Guest.

The SX2 console of DHD is based on a Central Module of four Faders. The central module gives access to the most important audio entries and outputs. It includes a microphone input and a headphones output, and allows you to connect coats directly. SX2 consoles are extended beyond four channels by adding one or more modules with six motorized faders each. This allows to integrate up to 20 channels. The central and faders modules each incorporate one Multitactile screen of 10.1 inches that shows the relevant configuration and operation parameters. The SX2 functions can be expanded simply by adding optional license codes to the DSP nucleus, allowing additional faders, buses and clean-feeds. It also admits functions such as the measurement of loudness and talkback with other DHD mixers.

The TX2 of DHD is a cMultitactile mixtures onsola with an intuitive control interface For daily use at writing tables, such as co-presentation panels, in editing rooms and SNG vehicles. Its flat desktop design includes a 10.1 -inch multitactile screen, two assignable potentiometers and six silent multicolored hardware buttons, which allow professional audio mixtures to be made in a small space. The most important connectors are available directly to the device for telephone interviews or dubbing. A single network cable connects the TX2 to a central or concentrator processor. The cable transports all audio and control signals, in addition to food, up to 100 m of the nucleus. TX2 is a very useful and simple way to expand any DHD system. It can be used with XC3 or XD3 nuclei as an independent device or as part of a larger mixing system and does not require a PC for its operation.

DHD digital signal processing centers constitute the heart of every DHD system, since they connect the control surfaces, perform the input/output routing and interconnection with the outside world. IP audio signals and the remote control of devices connected by IP can be integrated closely.

It also admits automated workflows and virtualization of products. The IP XC3 nucleus, which occupies only 1U of rack space, is designed for use in issuance studies. It consists of two dual -core DSP modules that are combined in 1U. They jointly support up to 48 stereo faders, 72 stereo buses and 16 IP AES67 audio channels. IPX expansion modules can be added to accommodate 128 input/audio output channels IP AES67/Ravenna more up to 512 Dante channels. A complementary module, the XC3 concentrator, allows to easily interconnect several IPX DHD modules, control surfaces and I/O modules.