--- title: Telos Alliance Blog Featuring Audio News Events Products & Updates (51) description: Telos Alliance has led the audio industry’s innovation in Broadcast Audio, Digital Mixing & Mastering, Audio Processors & Compression, Broadcast Mixing Consoles, Audio Interfaces, AoIP & VoIP for over three decades. The Telos Alliance family of products include Telos® Systems, Omnia® Audio, Axia® Audio, Linear Acoustic®, 25-Seven® Systems, Minnetonka™ Audio and Jünger Audio. Covering all ranges of Audio Applications for Radio & Television from Telos Infinity IP Intercom Systems, Jünger Audio AIXpressor Audio Processor, Omnia 11 Radio Processors, Axia Networked Quasar Broadcast Mixing Consoles and Linear Acoustic AMS Audio Quality Loudness Monitoring and 25-Seven TVC-15 Watermark Analyzer & Monitor. Telos Alliance offers audio solutions for any and every Radio, Television, Live Events, Podcast & Live Streaming Studio With Telos Alliance “Broadcast Without Limits” “Love What You Hear” (51) --- ## [Vintage Audio: B&W 410 Distortion and Voltmeter | Telos Alliance](https://blogs.telosalliance.com/bw-410-distortion-and-voltmeter) By [The Telos Alliance Team](https://blogs.telosalliance.com/author/telos-alliance-team) on Jun 7, 2016, 10:35:00 PM - [Tweet](https://twitter.com/share) # ![B&W 410 Distortion & Voltmeter](https://blogs.telosalliance.com/hs-fs/hubfs/Discrepancy_Sheet/BW_front.jpg?width=320&name=BW_front.jpg)Vintage Audio: B&W 410 Distortion and Voltmeter A recent trip to the attic reminded me of the long-forgotten ritual of an annual proof-of-performance, required of all stations by the FCC. Sitting in a dusty corner was a B&W 410 distortion and voltmeter. Time to bring it down for a general cleanup and photoshoot. The theory of total harmonic distortion measurement is simple. Feed a low-distortion sine wave into the device under test. Connect the output to the distortion analyzer. Filter out the fundamental frequency. What's left is second and higher order harmonics and noise. Of course, when theory is put into practice, things can get complicated. [Read More](https://blogs.telosalliance.com/bw-410-distortion-and-voltmeter) [![TWiRT 306 - A Day's Work with a Side of Ham with Charles Wooten | Telos Alliance](https://blogs.telosalliance.com/hubfs/TWIRT306.png)](https://blogs.telosalliance.com/days-work-side-of-ham) ## [TWiRT 306 - A Day's Work with a Side of Ham with Charles Wooten | Telos Alliance](https://blogs.telosalliance.com/days-work-side-of-ham) By [The Telos Alliance Team](https://blogs.telosalliance.com/author/telos-alliance-team) on Jun 5, 2016, 1:00:00 PM - [Tweet](https://twitter.com/share) # ![TWIRT306.png](https://blogs.telosalliance.com/hs-fs/hubfs/TWIRT306.png?width=320&name=TWIRT306.png "TWIRT306.png")TWiRT 306 - A Day's Work with a Side of Ham with Charles Wooten  Charlie Wooten - ham call NF4A - is our go-to guy for what’s happening in an Amatuer Radio. Charlie joins Chris Tobin with highlights from the Dayton Hamvention including a new member of the D-Star family.  It’s broadcast engineering with a side of ham! **Guest: **Charles Wooten - Director of Engineering and IT, iHeartMedia, Panama City, Florida **Host:  **Chris Tobin, [IP-Solutionist](mailto:support@ipcodecs.com)       [Read More](https://blogs.telosalliance.com/days-work-side-of-ham) [![VR Comes to Broadcasting | Telos Alliance](https://blogs.telosalliance.com/hubfs/Discrepancy_Sheet/Virtual_Reality/KCRW.jpg)](https://blogs.telosalliance.com/vr-comes-to-broadcasting) ## [VR Comes to Broadcasting | Telos Alliance](https://blogs.telosalliance.com/vr-comes-to-broadcasting) By [The Telos Alliance Team](https://blogs.telosalliance.com/author/telos-alliance-team) on Jun 2, 2016, 10:23:54 AM - [Tweet](https://twitter.com/share) # ![VR Comes to Broadcasting](https://blogs.telosalliance.com/hs-fs/hubfs/Direct_Current/VR_Comes_to_Broadcasting.jpg?width=300&name=VR_Comes_to_Broadcasting.jpg)VR Comes to Broadcasting Virtual Reality, or VR, was one of the hot topics at the recent CES and NAB shows in Las Vegas. The technology began to develop in the early ‘90s, when everyone was sporting those funny goggles. The novelty quickly wore off, and VR fell off the radar. Development continued however, and 2016 may be the year it finally reaches critical mass. No one is certain what the most popular applications for this new medium will be, but broadcasters are carving out a piece of the VR pie for themselves. [Read More](https://blogs.telosalliance.com/vr-comes-to-broadcasting) Topics: [Virtual Reality](https://blogs.telosalliance.com/topic/virtual-reality) [![HD Multiplex with Philipp Schmid | Telos Alliance](https://blogs.telosalliance.com/hubfs/TWiRT_blog/TWiRT_305_-_full_size.jpg)](https://blogs.telosalliance.com/hd-multiplex-with-philipp-schmid) ## [HD Multiplex with Philipp Schmid | Telos Alliance](https://blogs.telosalliance.com/hd-multiplex-with-philipp-schmid) By [The Telos Alliance Team](https://blogs.telosalliance.com/author/telos-alliance-team) on Jun 1, 2016, 3:26:58 PM - [Tweet](https://twitter.com/share) # ![TWiRT 305](https://blogs.telosalliance.com/hs-fs/hubfs/TWiRT_blog/TWiRT_305_-_full_size.jpg?width=350&name=TWiRT_305_-_full_size.jpg "TWiRT 305")HD Multiplex with Philipp Schmid What if you could transmit fifteen radio program channels from one FM transmitter, and receive them on existing FM-HD radios? Philipp Schmid, Research Engineer at Nautel, has been demonstrating exactly that. How does it work, and why might a broadcaster want to do this?  Philipp joins Chris Tobin and Kirk Harnack to explain. [Read More](https://blogs.telosalliance.com/hd-multiplex-with-philipp-schmid) Topics: [Broadcast Technology](https://blogs.telosalliance.com/topic/broadcast-technology) [![TWiRT 305 - HD Multiplex with Philipp Schmid | Telos Alliance](https://blogs.telosalliance.com/hubfs/TWIRT305.png)](https://blogs.telosalliance.com/hd-multiplex-philipp-schmid) ## [TWiRT 305 - HD Multiplex with Philipp Schmid | Telos Alliance](https://blogs.telosalliance.com/hd-multiplex-philipp-schmid) By [The Telos Alliance Team](https://blogs.telosalliance.com/author/telos-alliance-team) on May 27, 2016, 1:00:00 PM - [Tweet](https://twitter.com/share) # ![TWIRT305.png](https://blogs.telosalliance.com/hs-fs/hubfs/TWIRT305.png?width=320&name=TWIRT305.png "TWIRT305.png")TWiRT 305 - HD Multiplex with Philipp Schmid What if you could transmit fifteen radio program channels from one FM transmitter, and receive them on existing FM-HD radios?  Philipp Schmid, Research Engineer at Nautel, has been demonstrating exactly that.  How does it work, and why might a broadcaster want to do this?  Philipp joins Chris Tobin and Kirk Harnack to explain. **Guest: **[Philipp Schmid, Research Engineer - Nautel, Ltd.](https://www.linkedin.com/in/philipp-schmid-3963081) **Hosts:  **Chris Tobin, [IP-Solutionist](mailto:support@ipcodecs.com) and [Kirk Harnack](http://about.me/kirkharnack), [The Telos Alliance](https://www.telosalliance.com/), [Delta Radio](http://www.deltaradio.net/), & [South Seas Broadcasting](http://www.southseasbroadcasting.com/)     **Links from the show:** The HD Multiplex: What Will Be Possible? BEC Preview: More on the HD Multiplex [Nautel on HD Multiplex](http://www.nautel.com/solutions/advanced-solutions/hd-multiplex/) HD Radio Transmission Modes, including MP3 Mode [Paessler PRTG Network Monitoring Software](https://www.paessler.com/prtg)    [Read More](https://blogs.telosalliance.com/hd-multiplex-philipp-schmid) [![All About Adaptive Audio Streaming | Telos Alliance](https://blogs.telosalliance.com/hs-fs/file-2419938457-jpg/Direct_Current/Ioan_-_NAB_2013.jpg)](https://blogs.telosalliance.com/all-about-adaptive-audio-streaming) ## [All About Adaptive Audio Streaming | Telos Alliance](https://blogs.telosalliance.com/all-about-adaptive-audio-streaming) By [The Telos Alliance Team](https://blogs.telosalliance.com/author/telos-alliance-team) on May 25, 2016, 1:57:39 PM - [Tweet](https://twitter.com/share) # ![Ioan Rus](https://blogs.telosalliance.com/hs-fs/file-2419938457-jpg/Direct_Current/Ioan_-_NAB_2013.jpg?width=165&name=Ioan_-_NAB_2013.jpg "Ioan Rus")All About Adaptive Audio Streaming Streaming for broadcast is a hot topic right now. Consumer convenience prompted online video services such as YouTube and Netflix to offer Adaptive Multirate Video Streaming, and audio-only streaming providers—especially radio stations—are just recently able to offer the same convenience to their online listeners. Adaptive streaming is actually simple and inexpensive to implement, but it is a bit different from traditional online streaming. Here, we do a Q&A with Telos Alliance Director of Streaming Ioan Rus to help define the tech behind Adaptive Streaming and illustrate how both broadcasters and listeners come out ahead with Adaptive. [Read More](https://blogs.telosalliance.com/all-about-adaptive-audio-streaming) Topics: [Streaming Audio](https://blogs.telosalliance.com/topic/streaming-audio) [![NuTone 2067B-2068B Transistor Radio-Intercom System | Telos Alliance](https://blogs.telosalliance.com/hubfs/Blogs/FitA%20-%20NuTone/NuTone1.jpg)](https://blogs.telosalliance.com/nutone-2067b-2068b-transistor-radio-intercom-system) ## [NuTone 2067B-2068B Transistor Radio-Intercom System | Telos Alliance](https://blogs.telosalliance.com/nutone-2067b-2068b-transistor-radio-intercom-system) By [The Telos Alliance Team](https://blogs.telosalliance.com/author/telos-alliance-team) on May 24, 2016, 4:00:00 PM - [Tweet](https://twitter.com/share) # ![NuTone 2067B Radio-Intercom System](https://blogs.telosalliance.com/hs-fs/hubfs/Blogs/FitA%20-%20NuTone/NuTone1.jpg?width=320&name=NuTone1.jpg "NuTone 2067B Radio-Intercom System")NuTone 2067B-2068B Transistor Radio-Intercom System  Radios come in all shapes and sizes, and this column seeks out some of the forgotten and unusual examples. Previous installments have examined farm radios, unlikely portables and early clock radios. This time around, we'll look at the NuTone 2067B transistor radio intercom system. It dates to 1965, when home radio-intercoms were something of a status symbol in larger houses. [Read More](https://blogs.telosalliance.com/nutone-2067b-2068b-transistor-radio-intercom-system) Topics: [Vintage Radio Technology](https://blogs.telosalliance.com/topic/vintage-radio-technology), [Vintage Electronics](https://blogs.telosalliance.com/topic/vintage-electronics) [![TWiRT 304 - Why, Yes, it's WiFi | Telos Alliance](https://blogs.telosalliance.com/hubfs/TWIRT304.png)](https://blogs.telosalliance.com/why-yes-its-wifi) ## [TWiRT 304 - Why, Yes, it's WiFi | Telos Alliance](https://blogs.telosalliance.com/why-yes-its-wifi) By [The Telos Alliance Team](https://blogs.telosalliance.com/author/telos-alliance-team) on May 20, 2016, 1:00:00 PM - [Tweet](https://twitter.com/share) # ![TWIRT304.png](https://blogs.telosalliance.com/hs-fs/hubfs/TWIRT304.png?width=320&name=TWIRT304.png "TWIRT304.png")TWiRT 304 - Why, Yes, it's WiFi Chris Tobin joins us with a full hour live, remote broadcast from a park in Newark, New Jersey,  and he’s not using his telco carrier’s data!  It’s just another way that Chris is demonstrating that broadcast engineers can get it done for remote WiFi.  Chris reveals his methods and secrets on this episode of TWiRT! **Hosts:  **Chris Tobin, [IP-Solutionist](mailto:support@ipcodecs.com) and [Kirk Harnack](http://about.me/kirkharnack), [The Telos Alliance](https://www.telosalliance.com/), [Delta Radio](http://www.deltaradio.net/), & [South Seas Broadcasting](http://www.southseasbroadcasting.com/)        **Links from the show:** [Ubiquiti NanoStationM](https://www.ubnt.com/airmax/nanostationm/)     [Read More](https://blogs.telosalliance.com/why-yes-its-wifi) [![Vintage Audio: Wollensak 1500 Series Tape Recorders | Telos Alliance](https://blogs.telosalliance.com/hubfs/Blogs/FitA%20-%20Wollensak/Woll%20front.jpg)](https://blogs.telosalliance.com/wollensak-1500-series-tape-recorders) ## [Vintage Audio: Wollensak 1500 Series Tape Recorders | Telos Alliance](https://blogs.telosalliance.com/wollensak-1500-series-tape-recorders) By [The Telos Alliance Team](https://blogs.telosalliance.com/author/telos-alliance-team) on May 19, 2016, 4:29:00 PM - [Tweet](https://twitter.com/share) # ![Wollensak 1500 reel-to-reel tape recorder](https://blogs.telosalliance.com/hs-fs/hubfs/Blogs/FitA%20-%20Wollensak/Woll%20front.jpg?width=300&name=Woll%20front.jpg "Wollensak 1500 reel-to-reel tape recorder")Vintage Audio: Wollensak 1500 Series Tape Recorders Anyone who worked for the high school AV club or college media services department in the late ‘60s or 1970s remembers the [Wollensak 1500 series](http://www.radiomuseum.org/r/wollensak_t1500t_150.html) reel-to-reel recorders. Along with the RCA hand-threaded 16 mm projectors, they were the bread and butter of instructional media. The hallmark of these devices was their ease of use and indestructible design. Get ready for a flashback to your adolescence, when all you needed to know about tape recorders was 'PLAY-RECORD-STOP', as we peer beneath that white and chrome exterior of Wollensak 1500 tape recorders. [Read More](https://blogs.telosalliance.com/wollensak-1500-series-tape-recorders) Topics: [Vintage Radio Technology](https://blogs.telosalliance.com/topic/vintage-radio-technology) ## [Audio Processing as a Weapon | Telos Alliance](https://blogs.telosalliance.com/audio-processing-as-a-weapon) By [The Telos Alliance Team](https://blogs.telosalliance.com/author/telos-alliance-team) on May 18, 2016, 11:33:49 AM - [Tweet](https://twitter.com/share) # ![Brian Kerkan](https://blogs.telosalliance.com/hs-fs/hubfs/Kerkan_Brian-1.jpg?width=192&name=Kerkan_Brian-1.jpg "Brian Kerkan")Audio Processing as a Weapon One of the newest members of the Telos Alliance family is Brian Kerkan, who [came on board in March](https://www.telosalliance.com/news/Brian-Kerkan-joins-The-Telos-Alliance) as North American Manager for Radio Processing Sales. Brian brings with him a background in broadcast engineering in both radio and television, including as Director of Engineering for Saga Communications, and a strategic approach to audio processing, his primary area of expertise. In his new role he will provide guidance to clients looking to get the most out of their Omnia Audio processors. [Read More](https://blogs.telosalliance.com/audio-processing-as-a-weapon) [Previous](https://blogs.telosalliance.com/page/50) [All posts](https://blogs.telosalliance.com/all) [Next](https://blogs.telosalliance.com/page/52) Blog Search Search ### Recent Posts ## Subscribe *If you love broadcast audio, you'll love Telos Alliance's newsletter. Get it delivered to your inbox by subscribing below!*