TWiT Throwback (Audio)

TWiT Throwback (Audio)

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TWiT Throwback (Audio) episodes

  • Home Theater Geeks 270: Interoperable Immersive Audio

    Scott talks with Brian Vessa, the Executive Director of Audio Mastering at Sony Pictures, about the process of standardizing the way immersive movie soundtracks are created and distributed.

    Host: Scott Wilkinson

    Guest: Brian Vessa

    Subscribe to Home Theater Geeks at https://twit.tv/shows/home-theater-geeks

    Thanks to CacheFly for the bandwidth for this show.

    Sponsors:

    • harrys.com - promo code: HTG
    • proxpn.com/twit - offer code: HTG50

      • 1 hr 8 min
    • Know How... 158: Intel RealSense, Thermoelectric Cooling, and Win10 Gestures on a MacBook

      Intel's take on Microsoft's "Kinect" is called RealSense, Thermoelectric Cooling Basics, DIY Active Cooler, and a way to use Windows 10 Gestures on your MacBook.

      Let's talk about Intel RealSense!

    • It's Intel's take on Microsoft's "Kinect"
    • It was developed primarily as a hardware implementation of "gesture-based" IO
    • They just released their newest version of RealSense, the R200 and gave away units at one of the IDF sessions. (I wasn't able to get in. :( )

      • The new version uses a variety of tech

    • A 2d camera for conventional image capture // an IR camera for depth perception // an IR laser projector
    • A special Intel chip in the unit captures the 2D image, then uses the IR image to create a 3D image.

      • This enables a few interesting applications:

    • It gives you 22 tracking points per hand.
    • It allows for interesting camera tricks... like green-screen-less chroma keying. (Since it can scan for depth, you simply tell it not to include anything past a certain distance.)

      • TEC (Thermoelectric Cooling Basics)

      A TEC is a solid-state device that uses the "Peltier Effect" to create a "heat flux" between two different materials, acting as a "heat pump" that transfers heat from one side of the device to the other.

      You make a TEC by placing two semiconductors, made of different materials, physically parallel to one another, but electrically wired in series. You then attach each semiconductor to a thermally conductive plate. (Ceramic)

    • You need two different semiconductors because you want two different electron densities
    • When you charge the device (one semiconductor is postive, the other side is negative) you will get a flow of DC current across the junction between the two semiconductors
    • As the current jumps across the junction, one side of the device will get hot, and the other side will get cold.
    • (The heat from the cold side is transferred to the hot side... PLUS the heat generated by the current flowing across the junction.)

      • Advantages vs. Closed Cycle Refrigeration

    • Small and simple (no moving parts)
    • Long-lived (100,000+ hours)
    • Cooling effect is easily regulated (by adjusting voltage)
    • More durable (in most cases) than a refrigeration unit

      • Disadvantages vs. Closed Cycle Refrigeration

    • Maximum heat difference of 70 degrees C (The cold side can be no colder than 70 degrees cooler than the hot side.)
    • Inefficient. (10-15% vs. 40-60% for Closed Cycle Refrigeration)
    • Efficiency drops as more heat is pushed through the TEC
    • You can stack TECs to increase cooling potential, but you create an increasingly inefficient devices as you add more TECs.

      • Let's Identify our TEC!

    • All Peltier Elements will have an ID stamped (usually) on the Hot Side of the element.
    • For example "TEC1-12706" (These are the ones we're using for our project)
    • "TE" stands for "ThermoElectric)
    • "C" means "standard size" vs. "S" for "small size"
    • "1" indicates how many stages are in the device
    • "127" indicates how many P-N couples are in the device
    • "06" indicates how many amps the device is rated for

      • So... our TEC is a Standard 1-stage element with 127 positive-negative couples that can handle 6amps at 12 volts, or 72 Watts. Since our device is 10-15% effective, that 72 watts will get us less than 11 watts of cooling power.

      Windows 10 Gestures on a Mac

      Trackpad++

    • Who's this for? People running
    • The
    • Apple

      • These show notes have been truncated due to length. For the full show notes, visit https://twit.tv/shows/know-how/episodes/158

      Hosts: Fr. Robert Ballecer, SJ and Bryan Burnett

      Technical Director: Alex Gumpel

      Sponsors:

      • Ring.com/KNOWHOW
      • ifixit.com/twit enter code KNOWHOW

        • 56 min
      • This Week in Computer Hardware 330: Is That A HDTV or Monitor?

        HDTV recommendations with Robert Heron, a $330 Freesynch monitor or a $380 WQHD panel? We've got reviews! More iPhone 6s rumors, Radion R9 Nano performance, Intel's Box Master System with color-enabled gaming, and more.

        Hosts: Patrick Norton and Robert Heron

        Technical Director: Burke McQuinn

        Download or subscribe to this show at https://twit.tv/shows/this-week-in-computer-hardware.

        Thanks to CacheFly for the bandwidth for this show.

        Sponsor:

        • proxpn.com/twit - offer code TWICH

          • 52 min
        • Tech News Today 1333: Police Get a Weaponized Drone of Their Own

          North Dakota Police drones get weaponized, your drivers' license will soon be an app, Amazon fires dozens of hardware engineers, and more...

          Check out the full show notes for today's episode.

          Host: Mike Elgan

          Co-Host: Kashmir Hill

          Guests: Harry McCracken, Mike Murphy, Stephen Shankland, Matthew Patane, and Kerry Flynn

          Producer: Jason C. Cleanthes

          Technical Director: Jason C. Cleanthes

          Download or subscribe to this show at https://twit.tv/shows/tech-news-today.

          Thanks to CacheFly for the bandwidth for this show.

          Sponsors:

          • BLUEAPRON.COM/TWIT
          • gazelle.com

            • 52 min
          • Ham Nation 211: Katrina: 10 Years Later

            Gordo's TSA adventure, Boxboro! 2015, spicing up your QRZ.com page, remembering the hams of Hurricane Katrina, and more!

            Hosts: George Thomas, Gordon West, Valerie Hotzfeld, Dale Puckett, and Don Wilbanks

            Guest: Dr. Tamitha Skov

            Technical Director: Bryan Burnett

            Editor: Victor Bognot

            Download or subscribe to this show at https://twit.tv/shows/ham-nation.

            Thanks to Joe Walsh who wrote and plays the Ham Nation theme.

            Thanks to CacheFly for the bandwidth for this show.

            Sponsor:

            • icomamerica.com/hamnation

              • 1 hr 21 min
            • Android App Arena 60: Voice Assistants

              Hands-on reviews of Cortana Beta, Hound Beta, Google Now, and Bing Search.

              Host: Jason Howell

              Download or subscribe to this show at https://twit.tv/shows/android-app-arena.

              Bandwidth for Android App Arena is provided by CacheFly.

              Sponsor:

              • SmartThings.com/Arena - promo code: ARENA

                • 19 min
              • Tech News 2Night 411: The Great Drone Debate

                Mark Bergen from Re/Code is here to tell us why some people are so afraid of drones, even Angry Birds can't win with the freemium model, my wish for a digital assistant with a male voice is answered.

                Host: Megan Morrone

                Guest: Mark Bergen

                Bandwidth for Tech News 2Night is provided by CacheFly.

                Sponsor:

                • braintreepayments.com/technight

                  • 16 min
                • This Week in Google 315: Disappearable Hearables
                  Galaxy Note 5 design flaw, Huawei Nexus pictures show off metal device, look inside Google's new OnHub, Now's Staff Exodus, and more.

                  Hosts: Leo Laporte and Jeff Jarvis

                  Guests: Mike Elgan and Ron Amadeo

                  Technical Director: Jason Howell

                  Download or subscribe to this show at https://twit.tv/shows/this-week-in-google.

                  Thanks to CacheFly for the bandwidth for this show.

                  Sponsors:

                  • lynda.com/twig
                  • pagerduty.com/twit
                  • Justworks.com offer code: TWIG

                    • 2 hr 12 min
                  • Windows Weekly 428: 8.3 Day

                    Microsoft: More than 75 million devices now running Windows 10, rumored big-bang October hardware launch, Cortana on Android public beta now!, Windows Mobile update, and why you should hold off on buying a new PC.

                    Hosts: Paul Thurrott, Mary Jo Foley, and Leo Laporte

                    Download or subscribe to this show at https://twit.tv/shows/windows-weekly

                    Check out Paul's blog at thurrott.com

                    Check out Mary Jo's blog at AllAboutMicrosoft.com

                    Thanks to CacheFly for the bandwidth for this show.

                    The Windows Weekly theme music is courtesy of Carl Franklin.

                    Sponsors:

                    • ITPro.TV/ww - use code: WW30
                    • lynda.com/windows
                    • BLUEAPRON.COM/TWIT

                      • 2 hr 1 min
                    • iFive for the iPhone 157: Microsoft Translator, Brainscape

                      Use your Apple Watch to translate as you speak to it with Microsoft Translator, get the most out of Apple Music with iMore's Apple Music: The Ultimate Guide iBook, flashcards to help you study with Brainscape, swipe email left with Zero, and another GPS app with downloadable maps: CoPilot.

                      Host: Megan Morrone

                      Subscribe to iFive for the iPhone at https://twit.tv/shows/ifive-iphone

                      Thanks to CacheFly for the bandwidth for this show.

                      Sponsor:

                      • harrys.com - promo code: IFIVE

                        • 9 min

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