Schedule

Schedule

Monday, April 20

1429549200 Tech News Today
1429552800 Triangulation
1429558200 iPad Today
1429565400 Coding 101
1429570800 Tech News 2Night

Tuesday, April 21

1429635600 Tech News Today
1429639200 MacBreak Weekly
1429648200 Security Now
1429657200 Tech News 2Night
1429660800 All About Android

Wednesday, April 22

1429716600 FLOSS Weekly
1429722000 Tech News Today
1429725600 Windows Weekly
1429732800 This Week in Google
1429743600 Tech News 2Night
1429745400 Android App Arena
1429750800 Ham Nation

Thursday, April 23

1429808400 Tech News Today
1429812000 Know How...
1429817400 Marketing Mavericks
1429822800 Home Theater Geeks
1429830000 Tech News 2Night
1429831800 The Giz Wiz

Friday, April 24

1429894800 Tech News Today
1429898400 This Week in Law
1429909200 Before You Buy
1429916400 Tech News 2Night

Saturday, April 25

1429984800 The Tech Guy

Sunday, April 26

1430071200 The Tech Guy
1430085600 This Week in Tech

Monday, April 27

1430154000 Tech News Today
1430157600 Triangulation
1430163000 iPad Today
1430170200 Coding 101
1430175600 Tech News 2Night

Tuesday, April 28

1430240400 Tech News Today
1430244000 MacBreak Weekly
1430253000 Security Now
1430262000 Tech News 2Night
1430265600 All About Android

Wednesday, April 29

1430321400 FLOSS Weekly
1430326800 Tech News Today
1430330400 Windows Weekly
1430337600 This Week in Google
1430348400 Tech News 2Night
1430350200 Android App Arena

Most Recent Episodes

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Before You Buy

First looks at the 3DR Solo Drone and Sony HDR 4K Monitors at NAB.

Tech News 2Night

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This Week in Enterprise Tech

AT&T suing the FCC, Skype for Business, and Android is ready for work.

This Week in Law

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Tech News Today

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This Week in Computer Hardware

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The Giz Wiz

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Tech News 2Night

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Know How... 72

Network Videos on a Roku and Choosing the Monitor for Your Podcast

December 12 2013

Today, we're going to show you how to play networked video on a Roku and tell you what you should know about studio monitoring.

Play Networked Video on a Roku

If you've got a media server and a Roku you might get annoyed that there is no easy way to get your networked video to play on your Roku. Never fear, Iyaz has this problem at his house, so he's going to show you how to have your media server files play on your Roku easily.

If you've got a single source for your media (like a home media server), Plex Media Server is an excellent solution. First install Plex Media Server on your PC or Mac. Run the setup to add your media files to Plex's media library. Then install the Plex app on your Roku. Both of these apps are free.

If you have multiple servers, you might want to try the app PlayTo for Android. There's a free version you should try out to make sure it works properly before you shell out $5 for the full application. PlayTo will find your DLNA servers on your network (like your Windows PC or Playstation Media Server or Plex Media Server) and can display that video on your Roku box running the PlayTo app. The PlayTo app for Roku is free. Find out more about DLNA in Know How 34.

The Android phone running PlayTo acts as an intermediary between your DLNA server and your Roku. The app will even send your phone's local files to the Roku.

If you just want to send your phone's content to your Roku, try out the free Roku app with the "Play On Roku."

Stopping Ground Hum

Ground Hum is caused when an unintended connection is made to ground within an electrical system. Electrical systems SHOULD have a single path to ground, that allows for a consistent, even flow of current through the system. When a second, third or more connections are made to ground, you get a ground LOOP. – Current flows unevenly through these multiple paths to ground, creating differential voltage that, at worst can destroy sensitive electronics, and at best will lead to that annoying ground hum.

There are two ways to eliminate the ground hum: (1) remove the excess ground paths, and (2) isolate the ground paths or eliminate the offending frequencies.

Padre's method for troubleshooting Ground Hum is:
1. Isolate the offending component, cable or circuit.
2. Identify the fault within the offending component, cable or circuit.
3. Repair the fault within the offending component, cable or circuit.
4. Replace faulty gear (Spares Anybody?)
5. Look OUTSIDE the system (Fluorescent lights, Dimmers, Large appliances, Plug Polarity)
6. If all else fails: Upgrade.

Ferrite Core (Bead) – Dissipates high frequencies that are typically transmitted into a conductor by a source of interference, or are transmitted FROM the conductor. In other words, a ferrite core can prevent a wire from become a sending or receiving antenna.

Isolation Transformer – Transfers power from an AC source to a target while isolating the target from the power source. An isolation transformer uses insulation between the windings to ensure that primary and secondary are only connected via induction.

Studio Monitors

What are the Different Types of Studio Monitors

There are MANY different types of studio monitors, here are some of the bigger classes of gear:

Active vs. Passive Speaker Monitors
* Passive (Unpowered) Speakers require an external amplifier.
* Active (Powered) Speakers include the amplifier.
* Passive Speakers are generally less expensive than active, but require extra components and cabling.
* Active Speakers are more expensive, but their self-contained nature lends itself to studios, especially SMALLER studios that can't handle a lot of extra wiring, power leads and clutter.

Open vs. Closed Headphones
* GENERALLY, Open Ear headphones SOUND better, but closed ear headphones offer better sound isolation.
* Having an open back allows "Open Ear Headphones" to offer more "natural" sound. They have better 'width and depth' of sound, more natural bass and better definition of individual sound sources.
* CLOSED headphones tend to be 'boomier' on the bass, with slightly 'boxed in' sound, which CAN make things sounds muddled.
* IMPORTANT: This is NOT to say that open is better than closed... only that is SOUNDS different.

Choosing the right Monitor for your Podcast Studio

There are a few questions you should ask before you purchase your studio monitors:
1. What style of content will I be creating in my studio
* Musical content requires more accurate reproduction, which is not the specialty of an IFB

2. How many people will be in my studio at any given time?
* If you don't use an Active/Passive Studio Speaker, you'll need headphones/IFBs for each person in-studio

3. How good are my mics at sound rejection?
* If your mics are not good at sound rejection, Studio Speakers and Open-Ear headphones are not a good idea.

4. Do I care if people can see my monitor?
* This is where you want to use an IFB

Equipment shown on-set

Audio Technica ATH-M50s (~$100)
* Closed Back
* 45mm Neodyium drivers
* Padre's Personal Favorites

Sony MDR7506 - (~$100)
* Closed Back
* 45mm Neodynium drivers

Audio Technica ATH-M30 (~$40)
* Closed Back
* 40mm Neodynium Driver

IFB (Interruptible Fold-Back)
* Generic 24" Coil Tube Earbud IFB (~$17)
* These CAN run in to the $100s for nicer models

Green Screen Challenge!

We've got a Know How coming up about green screens and we've got a challenge for you. Alex Lindsay and Iyaz shot some video of them running away from a green screen. You can key out the green and put anything you want behind us. Get creative!

Multiple versions of the video are available and you candownload here. The best ones will be shown on the December 19th episode or Know How. Publish your work at our Google+ Community.

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