Announcements
Full documentation available for Model 5422A Dante Intercom Audio Engine. (15-Sep-2021)   New Dante firmware for the Models 5401A, 5402, 5422A now available. (19-Aug-2021)   New Product! Model 354 Talk Station. Desktop unit allows user to access four Dante Channels. (04-Aug-2021)   New versions of STcontroller for WinOS and macOS are available. Download now! (28-Jul-2021)   Full documentation available for Model 5412 Audio Interface. (07-Jul-2021)   Models 5401A and 5402 Dante Leader Clocks now support 176.4 and 192 kHz sample rates! (07-Jul-2021)   Model 76 High-Frequency Oscillation Issue Workaround. (11-May-2021)

Tech Notes

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16-Sep-2021 Dante Intercom Audio Engine Model 5422A Performance

Creating a Party-Line of more than 32 Channels

A Model 5422A Dante Intercom Audio Engine has a maximum group size of 32 channels. (In this case, the one group would be using all 32 channels of an audio engine.) So, in theory, a 32-channel group configured for the Party-Line operating mode would allow a maximum of 32 users to be part of that party-line (PL) circuit or channel. In the vast majority of applications that should be sufficient; having anything close to 32 users on the same PL would be an exception.

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12-Jul-2021 Model 76 Testing & Troubleshooting

Model 76 High-Frequency Oscillation Issue

The Model 76 Central Controller was manufactured for a number of years but was discontinued in August of 2012 due to parts availability and decrease in demand. It was an excellent product that is still in use by many facilities. We have become aware that after ten or more years of field operation an oscillation in the range of 17-18 kHz can appear in the unit’s analog output channels. It was found that the unit’s –15 volt DC power supply “rail”

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11-Jan-2021 Gooseneck Microphone New Release

Gooseneck Mic Released

Recently, Studio Technologies released the GME-3-12 Gooseneck Microphone. It’s an excellent unidirectional, electret, close-talk microphone that’s mounted on a miniature gooseneck shaft and interconnects using an industry-standard threaded bushing with integral 3-conductor 1/4-inch plug. Working with an excellent vendor in Japan, the GME-3-12 was created specifically for intercom and voice paging applications. It had to meet a rigorous set of acoustic and mechanical requirements before we knew it would be “right” for our customers.

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06-Nov-2020 Dante Firmware Updates Model 5422

New Firmware Enhances Model 5422 Dante Intercom Audio Engine Performance

Studio Technologies has released new Main and FPGA firmware (embedded software) for the Model 5422 Dante® Intercom Engine product. The first major update since the product was first released in early 2017, it ensures that the Model 5422 maintains industry-leading performance along with a better user experience. Version 2 adds new capabilities and expanded options for both the Model 5422-01 (32-channel) and Model 5422-02 (64-channel) versions. All newly shipping Model 5422 units will incorporate the new firmware.

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31-Aug-2020 Analog Intercom Dante Recommendations

Interfacing Unity Intercom to Analog Intercom using Dante

We often get calls from customers looking to connect their existing analog intercom systems to the intercom solutions provided by Unity Intercom. This can be easily done by installing Dante® Virtual Soundcard on the Mac running Unity Server. Then Dante Controller can be used to route any Dante audio to/from the Unity system.

Studio Technologies’ Model 44D Audio Interface is intended to be used to connect two channels of analog 4-wire intercom to a Dante network.

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01-Jun-2020 Recommendations

Procedures for Cleaning and Sanitizing Broadcast Equipment

Recently, a customer of ours in an education setting asked us if we recommend any procedures for cleaning and sanitizing broadcast equipment during this COVID 19 pandemic. The customer uses our equipment in a broadcast school and most of their announcer’s consoles have multiple users per day.

Studio Technologies has not published any cleaning procedures for our equipment. However, we’ve come across some good information from other sources.

One of our resellers,

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10-Feb-2020 Dante Testing & Troubleshooting

Understanding Dante Flows

If you have had trouble making routes in Dante Controller due to a “No more flows” error it is important to understand the concept of Dante Flows.

From the Dante Controller user guide: “Dante audio routing creates ‘flows‘. Each flow carries one or more channels of audio from a transmitting device to one or more receiving devices.”

The Dante Ultimo IC is limited to two transmit and two receive flows. So while many Studio Tech Ultimo-based products are capable of transmitting and/or receiving four channels of audio it can only receive from two unique flows and transmit to two unique flows.

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16-Oct-2019 Firmware Updates

Configuring a Local FTP Server for Firmware Updates

Some of Studio Technologies’ devices utilize file transfer protocol (FTP) to update the firmware running on them. Examples of these devices include the Model 5401 Dante Master Clock and Model 5422 Intercom Audio Engine. By default, these devices can connect to Studio Technologies’ FTP server to check for and download updates. In some cases, these devices cannot connect to the Studio Technologies FTP server. This can be caused by network security restrictions or no connection to the internet.

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01-Oct-2019 Dante STcontroller

Can’t Select a Network Interface in STcontroller?

Can’t Select a Network Interface in STcontroller? No Problem.

Recently we’ve had customers contact us regarding an issue where STcontroller could not connect to a local network interface. They found that their network interfaces would be listed in the dropdowns, but no option could be selected. The IP Address and MAC values below the interface dropdowns would also remain unchanged. This would result in STcontroller failing to identify supported Studio Technologies’ Dante products on the network and leaving the device list empty.

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02-Aug-2019 Dante Firmware Updates Model 348

New Features for Model 348 Intercom Station

Yesterday we released new firmware for the Model 348 that adds several significant features:

  • IFB Program Inputs: 8 new Dante receive channels are used to provide the IFB Program source allowing the user the option of monitoring the IFB program source or the main output from on-air talent.
  • Audible Call Tone: Call signals can now be indicated both visually or visually and audibly. When visual and audio call indication is selected the active call input channel will blink and a ~500 Hz tone is sent to the speaker and/or Dante Monitor outputs.
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