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My Take – Using your mobile camera as a webcam

A couple of weeks back Chris Kranky offered a post where he explored this topic in some detail. It’s a good idea. Well worth exploring since common, and especially built-in webcams, are so bad. He tried a handful of iOS and Android apps on various handsets. It was a good experimental series.

I’d like to add a slightly different take, using a couple of additional apps that have crossed my path. In particular, I’d like to highlight NDI as a technology that’s very useful in this application.

What is NDI?

According to Newtek:

“NDI® (Network Device Interface) is a low latency IP video protocol developed especially for professional live video production, and is supported by an extensive list of broadcast systems from many manufacturers.”

NDI Camera

Newtek has offered two different NDI Camera apps. The original (no longer offered) which I bought for around $20, leverages full-bandwidth NDI. Full-bandwidth NDI offers the best image quality, and lowest latency, but requires massive bandwidth. It can work very well used when on a robust Wi-Fi network.

NDI Camera Julio

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Pixel & Pie – WTF Google!

Google Pixel (Very Black)

After carrying Nexus phones for years I bought a Google Pixel in December 2016. That was just after the Pixel 2 was released, so the older Pixel was priced well and still offered great performance.

I was very pleased with the Pixel until quite recently. The OTA update to Android 9 (Pie) in August has been a huge step backward. Since that update the phone’s battery life has been dramatically reduced. Where it once lasted all day with my typical usage, it now lasts only about 7 hours with only light usage. Further, the phone is often noticeably warm to the touch.

Being the inquisitive sort, I’ve done some experiments to try and find out why this is happening. There are no rogue apps running. Or at least the OS reports no app using more that 2-3% of battery power.

I put the phone in Safe Mode for a day so only the factory installed apps would run. Battery life remained abysmal. That suggests that the problem is not caused by an app at all.

I’ve come to believe that I’ve identified the source of the problem. It’s related to the Wi-Fi. If I turn off the Wi-Fi the battery life is closer to what was experiencing running Oreo. Turn it back on and it plummets.

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The nVidia Shield K1 Tablet

Let me be clear, I was a big fan of Google’s Nexus series. It started with the Galaxy Nexus, which impressed me so that I later bought a Nexus 4. In 2012 Google also released the first generation of the Nexus 7, which I also purchased.

The Nexus experience continued, so favorable that I didn’t even hesitate when they released a second generation Nexus 7 in 2013. I ordered one immediately.

The Nexus 7 saw heavy use around the house. I loved the Nexus 4 for a device on-the-go. It was the perfect size IMHO. Around the house, where fitting into my pocket was less of an issue, the Nexus 7’s larger screen made it my go-to device.

I’ve actually had three Nexus 7s over the years, replacing one with a shattered display, and later buying a spare when Google stopped offering them. I still have the Asus dock with micro-USB and HDMI ports that lets the tablet run on external power, even as you use it to feed a monitor or HDTV.

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Undecided: Replacing a Nexus 7 Tablet

Nexus-7-2013 360pxUntil very recently I was seriously committed to Google’s Nexus line of devices. From the Galaxy Nexus onward, with just one exception, I carried a Nexus Series mobile phone.

I was so happy with the Galaxy Nexus, and Nexus 4 after it, that I jumped on the first generation of the Nexus 7 tablet in 2012. Similarly, my experience with that tablet was good enough that I bought the Nexus 7 2013 edition immediately upon it’s launch.

Later, when Google stopped offering them, I even bought a spare! I regret not purchasing the HSPA+ capable version when I saw it offered by Expansys at a discount.

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How-To: A Non-Bluetooth Wireless Headset for a Mobile Phone

Nexus 5 & Logitech H820eA few days back someone over at the DSL Reports VoIP Forum posed a question. Along with expressing some frustration with Bluetooth headsets, they asked how they might use a wireless headset that was not based upon Bluetooth with a mobile phone?

That is a curious question. I certainly understand that people can be frustrated with Bluetooth headsets. It’s something that I have suffered now and then.

Class 2 Bluetooth, which is limited to 2.5 mW radiated power, is the most common variety. It’s supposed to deliver a 10 foot range. That’s fine when a mobile phone is in your pocket, but inadequate when it’s on your desk and you need to refill your coffee.

Class 1 Bluetooth kicks the RF power up to 100mW, aiming to allow you to wander up to 100 feet from the host device. Unfortunately, to achieve this freedom to roam, both the host and the headset must be class 1 devices. AFAIK, no mobile phone has ever had a class 1 Bluetooth radio.

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