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.

Continue reading “The nVidia Shield K1 Tablet”

Confirming The Quality Of One’s Tools

Zoom-H2-Nexus7-AudioTool.jpgWhen experimenting with a new audio path I like to take measurements. Long ago, in an age of techno-pre-history known as the late 1980’s,  I craved what were then an emerging class of computerized test instruments, like the Audio Precision System One. Happily, today such costs are unwarranted given the current class of programmable smart devices. I’ve been very happy with Audio Tool For Android running on my Nexus 7 tablet.

If I am to trust the measurements that Audio Tool allows me to make I need to start by confirming the validity of it’s measure using a known reference signal. I was also making use of the Zoom H2 Handy Portable Stereo Recorder, so I decided to record the output of the sweep generator in Audio Tool to the H2. Then I tool the resulting WAV file into Adobe Audition to see what resulted.

Continue reading “Confirming The Quality Of One’s Tools”

BlackMagic, Nexus Devices, MHL and SlimPort

As I tinker with various things around here I’m finding that I need some tools to be able to capture experimental results in a manner that provides assets for this blog. Recently I’ve added a couple of new tools which I though you might find interesting.

This process of “tooling-up” started last year when I purchased a BlackMagic Design Intensity Pro capture card. That card has been mentioned a few times previously. It allows me to capture video from an HDMI connected source.

The Intensity Pro card has been very handy for a variety of things. Since computers these days are capable of screen resolutions that are also common to HDTVs I have used it to record the output of PC desktops. That has included screencast tutorials as well as the output of specific programs, like Adobe Audition.

Continue reading “BlackMagic, Nexus Devices, MHL and SlimPort”

Experimenting with Opus I: PhonerLite

Opus-LogoInspired by my earlier interaction with Mike Phillips I thought it would be interesting to get some hands on experience with Opus. It would be worthwhile staging a little test to better understand the audio path presented in one or more Opus implementations.

A quick Google search revealed that PhonerLite, the freeware Windows soft phone from Germany, includes Opus from the v1.92 release onward. According to the release notes support for Opus replaced support for CELT. The current release is v2.08 from April 16, 2013.

I had first encountered PhonerLite some time ago, when I was seeking a G.722 capable soft phone. It’s very functional but a bit quirky.

Continue reading “Experimenting with Opus I: PhonerLite”