Tech Notes

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01-Nov-2018 Firmware Updates

Cool New Button Function for Models 204, 205, 206, and 208

Version 1.02 of the application firmware for the Models 204, 205, 206, and 208 Announcer’s Consoles have been released to support the addition of a fifth button mode selection. The Push to Mute/Tap to Latch mode was added in response to a request from a “power user” friend of ours. Rick Cutler knew what his customers needed to do their best for live “radio” events and he suggested it to us. After a few minutes of consternation,

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01-Nov-2018 Dante Clocking Model 5401

New Model 5401 Sync FPGA Firmware

Time flies and it’s already been about a month since we released version 1.01 of the Sync FPGA firmware for the Model 5401 Dante Master Clock. We recommend that all Model 5401 units be updated as soon as possible. Loading this update is not critical but is highly recommended.

Updating is done using the unit’s internal FTP (file transfer protocol) client which establishes a connection to the Studio Technologies’ FTP server. Assuming that network access to the “outside world”

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01-Nov-2018 Dante

Version 1.07.00 of STcontroller Released

Yesterday we released a new version of the STcontroller application. It’s 1.07.00 and we really like it. It incorporates a number of additions, changes, and bug fixes.

It adds support for a couple of upcoming products, the Model 381 On-Air Beltpack and the Model 5418 Mic/Line Interface.

It supports the latest version of firmware for the Models 204, 205, 206, and 208 Announcer’s Consoles. The new firmware adds a fifth button operating mode (Push to Mute/Tap to Latch) for the main button (Models 204,

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31-Oct-2018 Dante

Problem with Dante Subscriptions Re-establishing

Over the past few months the Studio Technologies support team has received reports from users in the field who’ve had issues with Dante subscriptions not correctly re-establishing upon device power up. This always involved Studio Technologies products that used the Audinate Ultimo X2 or Ultimo X4 integrated circuits to support their Dante interface. Specific products that were involved in the field included the Models 214, 215, and 216 Announcer’s Consoles, Models 370, 370A, 374, 374A Intercom Beltpacks,

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13-Sep-2018 Model 5401

Supporting AES67 (PTP v2) with the Model 5401

The Model 5401 Dante Master Clock was initially designed for use in applications that utilized devices running “native” Dante. To support the master timing needs of these devices Precision Time Protocol Version 1 (IEEE-1588-2002 or PTP v1) was implemented. The unit’s PTP v1 implementation functions very well, including in redundant Dante applications. (Independent Ethernet networks connected to the Primary and Secondary Ethernet ports on the back panel of the Model 5401.) Even in large installations with literally hundreds of Dante devices,

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07-Sep-2018 ST 2110

Configuring Ethernet Switches for Audio-over-Ethernet Use

This document from Lawo regarding setting Ethernet switch parameters for optimizing audio-over-IP operation is really terrific:

https://www.lawo.com/support/know-how/ip-networking-guide/specific-switch-configurations.html

We implemented the suggested settings on an SG300 and it allowed much-improved performance when testing our new ST 2110-compliant products. We had been told that only “PTP aware” Ethernet switches were acceptable for use with ST 2110-10, but our simple test showed that maybe this is not the case. Once the changes were made the occasional “clicks”

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06-Sep-2018 Dante Clocking Model 5401

Using Two Model 5401 Dante Master Clocks for Redundant Operation

The Model 5401 Dante Master Clock has proven to be a solid product that’s found successful use in the field. But trying to use two units on a single local are network to achieve redundant master clock operation currently has one limitation that’s worth noting.

In the Dante Controller software application both Model 5401 units will, by default, appear as Preferred Master and allow an external sync reference. Dante will automatically select one of the units to be the active clock master.

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06-Sep-2018 ST 2110

We had a great time in Wuppertal – our first ST 2110 products are a “go”!

We recently returned from a most-interesting week in Germany, attending the pre-staging event for the IBC 2018 IP Showcase. We took prototype versions of our new ST 2110-compliant products, the Model 5512 Audio Interface and Model 5518 Mic/Line Interface. The goal was to check and see if they would operate successfully with other 2110-compliant equipment as supplied by manufacturers from literally around the world. After initial testing and some software enhancements (can you say “bug fixes”!) things worked out well.

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06-Sep-2018 Dante Firmware Updates Model 48D

New Firmware for Model 44D Interface – Now Generates 18 kHz and 20 kHz tones.

In August 2018 version 2.2. of the Model 44D Interface’s application firmware was released. This new firmware revises the tone generation capability, keeping the 18 kHz sine-wave but replacing the 1 kHz with 20 kHz. This change was made so that the Model 44D can better assist a matrix intercom and related audio devices in generating intercom user “call” signals. The change may appear to be fairly subtle, but it continues to expand the ability of Studio Technologies’

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