Graves On SOHO Technology

For quite some time I’ve been looking for a way to leverage things like Skype video calling, Google Hangouts or Citrix GotoMeeting with HD Faces. However, I don’t want to use a webcam as the video source. I want to use a real, high-quality video source….preferably an HD-SDI video source.

Clearly I’ve got my own reasons for this sort of requirement. I work with equipment that outputs production grade video. By “production grade” I mean entirely uncompressed video. That’s 270 Mbps for SD and 1.459 Gbps for HD. It’s very clean video.

There are times when I need to be able to stream this kind of video to a remote site. Of course it’s not practical to send the uncompressed stream wholly unaltered. Well, it could be done, but for a hefty price.

Since the far end is typically an ad hoc location what I really need is a way to use an uncompressed HD-SDI source, but deliver a decent quality, sensibly compressed stream to something handy at the far end. It would be most ideal if it didn’t require an installed app to receive the stream. Finally, it should handle firewalls and NAT without flinching.

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The  May 25th VUC call with the teams from RIM and Truphone was interesting. It’s great to hear that RIM is taking audio quality seriously as they go forward. I certainly hope that they get some traction with that strategy. As someone who has trumpeted the merits of HDVoice for a few years, any help to raise awareness of the benefits of improved audio quality is truly appreciated.

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There’s a new tool in the office and I’m actually pretty excited about it. For several months I’ve had the Black Magic Design Intensity Pro video capture card. It’s a little PCIe card that has a variety inputs, most notably HDMI in and out.

In my currently working life this is part of a video monitoring solution. I take a SMPTE-292M HD-SDI feed from one of our products into a Black Magic Design Mini Convertor ($300) that converts HD-SDI into HDMI. Normally I take the HDMI feed into a consumer HDTV for display. This is dramatically cheaper than a proper broadcast monitor with an HD-SDI input.

While that arrangement works for real-time viewing of the HD-SDI stream, I had hoped for some way to capture the stream to disk. Back in February I tried the Black Magic Design UltraStudio SDI but ran into trouble with the USB 3.0 interface under Windows.

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About a week ago Scott Wharton, CEO of Vidtel, penned a blog post asking, “What’s wrong with the video conferencing industry?” Scott goes on to cite the high-cost of video conference end-points devices, considering both older models and some new product introductions.

Scott expresses frustration with the incumbent players “lack of aggressiveness” in driving down the cost of video as a tool for business. His point is well made. The cost of implementing video remains too high for many companies, including my own employer.

Scott says, “It’s unquestionable that video conferencing will be and is becoming the de facto way that people communicate.” While I’d like to agree with this. Heck, I want to agree with this. It’s not been my experience to date.

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This is a semi-rant on a somewhat common theme for me, getting the best audio quality. In pondering these two new video calling devices from Tely Labs and Biscotti one thing stands out as unfortunate…they both rely exclusively upon an array of microphones built into their respective device. I find this to be short-sighted and unnecessarily inflexible.

Consider of you will the sample video that Jim Courtney recorded speaking with a gentleman from Tely Labs. The video quality is good. The audio quality is good…but it could be a lot better.

At both ends of the call there’s considerable room tone. In particular you can clearly hear that the conference room at Tely Labs is a simple drywall box. It sounds boomy and reverberant.

As I have described elsewhere, I find that the use of a speakerphone is always a last resort. It’s really only appropriate when you have a group of people collected for a call. To use a speakerphone when the call is just on-to-one is to permit the ambient noise and nature of the room to have undue influence in the audio quality.

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It seems that there’s a new wave of devices emerging that aim to provide high-quality video calling by way of the family TV.

This is not unfamiliar territory as both Cisco and Google have been in the space for some time. Cisco had their UMI device and associated service. Google had with the video calling capabilities built into Google TV, as exemplified by Logitech’s Revue.

It very clear that none of these prior efforts have made the kind of inroads that had been expected. Umi is no more. Logitech admitted that they took a bath on the Google TV and killed off Revue. Google seems to be continuing the Google TV effort, but it’s unclear where it’s heading.

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