Video

VUC515 & A Couple of Observations About YouTube

Last week’s VUC515 with Tsahi Levent-Levi was a great call and a fine example of why the VUC continues to garner audience. Kudos to Randy, Tsahi, Tim, Emil at the cast of several who brought it about.

Dual-Dell-Monitor

The production of the call was a bit unusual. Further, it’s post-call existence is continuing that trend line. In the moments just before the call YouTube decided to ignore the video stream that I was sending from Wirecast. When this has happened in the past stopping & restarting the stream once or twice has resolved the matter.

On this occasion, nothing that I tried could make YouTube acknowledge the stream, so we resorted to abandoning the YouTube Live event, making a local recording instead. That local recording was later uploaded to YouTube.

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Webcams 7: VDO360 Serious Webcams For Business

It was around a year ago that went on the hunt for a USB 3.0 webcam, only to find that they were essentially nonexistent. In my quest what I discovered was a range of products beyond the familiar consumer webcams. These are serious webcams for business, offered by companies like VDO360.

That companies’ initial product, the VPTZH-01 HD USB PTZ Video Camera, was novel for its VISCA compatible pan-tilt-zoom (PTZ) capability. It was introduced at around $1399, a price that was heralded as a breakthrough at the time. Award-winning in fact. The current street price, as exemplified by Amazon, seems to be $999.

The VPTZH-01 HD USB PTZ Video Camera is a USB 2.0 connected device, with all that entails. The sensor is capable of delivering images up to 1920 x 1080 pixels (1080p.) Most applications will only manage to access a 1280 x 720 pixel (720p) stream since they are taking uncompressed frames from the camera.

Applications that are sophisticated enough to setup the camera to deliver a stream of MJPEG compressed images will be able to get full 1080p quality for the effort. The MJPEG compression overcomes the bandwidth constraint of the USB 2.0 connection to the host computer.

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Making Some Noise About Noise

Snapper-lawn-mowerThis morning my normally tranquil home office was pierced by the sound of a neighbors lawnmower. The lawnmower, while aggravating, is just the lead-in to that most vile of power tools…the leaf blower. Leaf blowers should be outlawed.

All of this has thinking about noise. In even modest amounts, noise degrades our ability to communicate. Beyond simply annoying, it hampers productivity. Therefore noise has very real costs. Nowhere is this more true than in the case of conference calls or video conference calls. These are cases where extraneous noise should be avoided.

The classic conference call wisdom, good advise to this day, is that all participants to should diligently mute themselves when not speaking. People being what they are, many do not know of or act upon this belief.

When using a managed conference bridge, like ZipDX, the call moderator has the ability to mute a noisy participant, ensuring that their local acoustic reality doesn’t degrade the call experience for everyone. That’s great, but it really just allows the moderator to compensate for the fact that someone on the call is exhibiting poor conference call etiquette.

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A Dead Ringer For DoorBot

DoorBot-Looking-Left.jpgThis week has seen the team behind the DoorBot pseudo-smart doorbell announce their second generation product. In so doing they’ve renamed themselves Ring.

Honestly, my experience with Doorbot and its creators was so bad that I can’t help but harbor some animosity toward their operation. Yet, I want to be fair. Design is an iterative process. Perhaps they just need a few iterations on the theme to get to more generally usable product.

On the other hand, the description of the new product seems to be an incremental improvement from DootBot. Jump from 802.11B type Wifi to the more recent 802.11N type. Jump from VGA resolution video to 720p video, the baseline for HD. Abandon push-to-talk audio, ala Nextel of old, for something more akin to telephony. It’s basically a reversal of some of the bad design decisions embodied in the first generation product.

On the other hand, they still seem completely wed to their own “cloud service.” My experience with that was expect massive latency on call setup. Expect video only on occasion. I rarely even had continuous audio. On this basis alone you probably won’t receive that Fedex Express package you’re expecting on the first delivery attempt.

I’ve come to understand that my mistake with respect to DoorBot was expecting the kind of performance that I could more reasonably expect from any standards compliant IP phone. The DoorBot team clearly doesn’t have that sort of experience or appreciate that kind of performance. Even if that’s what separates the tools from the toys. DoorBot is a toy. Nothing more.

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Revisiting The SlimPort Output Of Android Devices

HDMI-SplitterA few days back I received a G+ IM from someone who had discovered my description of how to use an HDMI splitter to make the output of an Android tablet more useful. He posed a question that I think is worth sharing. He asked the following;

Dear Michael,

I just read your article about capturing video from a Nexus 7 and I have a question about that if you do not mind.

I bought a Nexus 7 (2013) to be able to give presentations and show short movies in my classroom. The thing is that most projectors still have only a VGA socket. I have a cable Slimport=>HDMI and it works perfectly well.

I also have a cable HDMI=>VGA but it does not work and I suspect it is because of the HDCP. I was wondering if the splitter and HDCP stripper you used could work in my case. If yes that would be great and would literally save my classes.

Thank your for your time and sorry again to bother you with that.

Thibaut Bailly

To begin, as a blogger, I welcome questions from readers. For the most part people blog because the want to share what they’ve discovered. As a non-professional blogger I may not always respond immediately, but I try to respond to every comment and question.

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Review: The Logitech CC3000e Conference Cam – Part 2

Logithec CC3000e Conference Cam KitIn part one of this little adventure I introduced you to Logitech’s new CC3000e Conference Cam, a webcam like no other in my experience.

Audio Performance

The audio playback performance of the CC3000e was decent. I have used the device to listen to streaming radio & some podcasts while it was USB attached to my desktop. It’s obviously much too large for my desk. Then again, that’s not the target role for the device.

Logitech has a long history as a manufacturer of PC speakers, with products ranging from cheesy to thunderous, so it’s no surprise that the CC3000e sounds quite good. Given my prior experience with the BCC950, I was more curious about the performance of the microphones.

I put the CC3000e along side a couple of reference devices for comparison. When compared to the Clear One Chat 160 I found that the CC3000e played louder, no doubt bit benefits from deriving more power than a single USB connection can provide.

In the way of a simple audio test I recorded some speech into Adobe Audition using the CC3000e as the source device. With the sample rate set for 48 KHz the resulting recording showed vocal energy present up to around 8 KHz.

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