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Using Skype For Podcasting And Production.

Filed under production by david cummings on Wednesday 9 May 2007 at 10:37 am

A podcaster wants to record a telephone interview with a guest on another continent. An ad agency with key members of their creative team spread out around the country needs to collaborate with a production house on a video edit. An audio engineer has a client that got tied up and can’t make it to the studio but still wants to listen in on a voice over session.

Scenarios like these are many, and one application is surfacing as a friend to content developers who are searching for ways to integrate human interaction from remote locations into our content creation workflow.

That friend’s name is .

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Using Skype for Podcasting

Coming from a broadcasting background, when it came to develop a strategy for an upcoming ContentDeveloper.com project that will require the ability to record telephone interviews, I initially gravitated toward solutions similar to the way I’d seen many broadcast studios handle the telephone interview situation — using what is known as a to patch audio from an analog phone line into a mixing board.

Gentner was the name brand I would see on a lot of studio hybrid’s back in the day so I looked there first to see what was the latest they had to offer, but as far as I can tell the Gentner name got absorbed by another company. So I widened the net and took a look at some hybrids offered by . A friend recently installed a Telos hybrid to handle a multi guest telephone interview situation for a live internet radio program and had pretty good results.

During this research I also took a look at the digital hybrid, some low cost options for recording telephone interviews from Radio Shack and a series of hybrids offered by , a company which seems to be gaining momentum as a solution for podcasters — so much so that they came out with a rebranded version of their called the .


JK Audio Podcast Host product image from

If you’re thinking about going the hybrid route to record your telephone interviews, one thing to keep in mind is that telephone hybrids face the challenge of separating out the audio from the sender and receiver in the phone conversation. The modern hybrid’s ability to isolate both sides of the conversation from each other is accomplished primarily through the use of ‘s. The resulting quality of this separation is measured in , with the greater the db of separation, the better. Usually a higher end (and more expensive) hybrid will deliver greater separation. For example, JK Audio offers an entry level hybrid known as the which offers 20 db of separation between transmit and receive while their higher end and higher priced Broadcast Host offers 50 db of separation.

After weighing all these options and talking with a friendly and knowledgeable rep at the company, I’d pretty much settled on JK Audio’s for being in the sweet spot of what this project needed. That is until I dusted off my trusty from the storage closet. The AutoHybrid is a basic hybrid and needs a mixer like the Mackie to pick up some of the functionality to successfully record telephone interviews. Problem here is that my Mackie somehow got damaged while it was packed away and had developed a loud, ever present hum.

Distracting hums usually aren’t a good thing when it comes to audio production, so with that bit of bad news I decided to look at other options for recording interviews that didn’t involve the use of a hybrid. Maybe one built on a platform.

And that is where Skype enters the picture.

I’d been following Skype loosely since it first came out, but had never actually tried it. Being a longtime stockholder, Skype became a bigger blip on my radar screen after .

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chart of EBAY stock since announcing Skype acquisition

EBAY took some heat over that acquisition, but if you look at it in the context that they bought a platform rather than simply an unprofitable global VOIP based phone company, they may turn out to get the last laugh. But that’s a topic for another post, so let’s just say I decided to support the home team and give Skype a try.

and installation of the Skype client went smooth on a couple year old based box using for an ISP. One thing about VOIP apps is that you need good bandwidth so I ran a quick check to see if my pipes were clogged.

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checking my bandwidth with the

Bandwidth looked solid, but it now dawned on me that since I no longer had access to the Mackie, I needed a new way to get the input from my microphone into the computer. (According to Shure, the SM58 was first introduced in 1966. How many technology products can you name that can still compete after 40 years? That’s quality.)


SM 58 product image from shure.com

After updating my research on the soundcard market, I decided to go with the external . With a street price of under $100 US, the Fast Track looked like one of the better entry level values for being able to capture XLR audio input. Plus M-Audio’s family ties with suggested an acceptable quality level would be delivered, even at that prosumer style price point. And I wasn’t disappointed there. Even though you have to crank up the Fast Track very close to maximum to get a decent level from the SM 58, it still sounds extremely clean and quiet, with no noticeable heavy increase in noise correlated with the increase in .


FastTrack USB product image from M-Audio.com

The needs for this project were pretty well defined, but if your project requires a little more flexibility the is an option worth a look. Or if you need to drive a , then the may be an option to consider.

Beyond the M-Audio product line, another strong candidate in my search for a way to get XLR audio into my PC was the . A big benefit of the Zoom is that its primary purpose is that of a portable audio recorder which also just so happens can function as a reader and digital audio interface with XLR input. Translation – the Zoom not only gives you much of the functionality of the Fast Track USB, but can also take care of you if you’re going to be conducting face to face interviews or capturing other audio on location somewhere.

If you want to learn more about it, has an in depth and you can visit and check the to stay up to date on how H4 owners are reacting to the product.


Zoom H4 product image from

As versatile an audio tool as the H4 looked to be, the Fast Track still felt like a better fit for this particular project. And now it was time to put that feeling to the test and see how it worked with Skype, so I dialed up an using the Fast Track and SM 58. The Skype test operator reported all systems go. So far so good.

With our hardware acquisition, installation and testing now complete, the next question was how exactly do I record a Skype call?

To help find that answer, I downloaded several software plug ins for recording Skype calls, including , and . I never got a chance to fully dig into many of them because I installed the Pamela application first, and, well, it worked.

Many of these applications offer basic or free versions which either limit recording time for calls or only record to one mono track with caller and receiver both on the same channel. The Pamela Basic version worked pretty well, so if you’ll only be recording calls under 15 minutes each and can live with the caller and receiver on the same track, then that would be all you need. Many of these packages also offer professional versions for around $24.95 US, Pamela included, which you’ll need to get if you want your caller and receiver put on separate tracks and have unlimited recording time. Those features were important for this project so I chose to go with Pamela Pro.

Pamela allows you to record your interviews in either or file formats. I’ve always been a believer in starting with the highest quality original as possible, so I chose the 48 , mode – the highest resolution WAV setting available in Pamela to record our test interviews.

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screenshot of setting audio options in pamela

The test files sounded good at this rate, so now it was time for post production.

ContentDeveloper.com’s office is located in the animation and video post production facility, which includes access to a very nice dedicated suite for in depth audio projects. For smaller to medium audio jobs I usually rely on my own desktop audio setup at the office that is built around the audio tools in the – which btw used to include but now will be shipping with .

But I’d been researching this project from my home office which didn’t have any of these audio post production tools installed or available. So I used this as an opportunity to finally try out the popular audio tool .

and installation of Audacity was clean and I found the feature set to be pretty impressive. No wonder it has become such a hit with podcasters.

One note here that might save you some time. For some reason the process for exporting a stereo WAV file (host and guest recorded on separate tracks) as a either a single or dual track mono MP3 file didn’t come intuitively to me so I turned to the for help and found an article on . You’ll also need to install the to export WAV’s as MP3’s with Audacity.

To complete this test project, I wanted to turn out a quick little custom music intro. I usually rely on for developing loop based audio projects, but again, being at the home office I didn’t have it installed. I did have several available though so I downloaded and installed a copy of the free to see if I could create a simple music bed with it.

In so far as creating a down and dirty 10 track loop based music intro, this version of Acid was more than up to the task. But I was disappointed in the way Sony chose to limit the options in Acid Express regarding available file formats and settings for rendering out a final mix (I couldn’t even render out a WAV file).

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screenshot of trying to export wav format in acid express

Despite that limitation, all the pieces appeared to be working together nicely and the workflow map for getting our project out the door was essentially complete.

While the solution presented here for recording telephone interviews with Skype is a great fit for our project, remember that it is just one of many options for you out there. For a look at several more ideas on how to record Skype calls, including some based strategies, I found to offer one of the more comprehensive lists of tools in that area. And if you’re still thinking about going with a telephone hybrid for your podcast, I found JK Audio’s article on to be pretty good at explaining the technology behind the process.

A couple other quick notes about podcasting with Skype –

– When I first installed Skype and tried to use the included five free minutes to test the feature which is used to call land lines and mobile phones with Skype – I got an error number 9502. A quick showed that I wasn’t alone in this. I wasn’t too upset over being stiffed to what amounts to about 20 cents, so I just went ahead and bought ten dollars worth of . Everything worked as it should from there.

– When making several test Skype Out calls to different devices on different carriers, the on the receiving end would display varying messages. For example, on an landline, the caller id from the Skype Out call read as 000-012-3456 while on a mobile device it read as Unknown. I mention this here so that if you’re going to be placing a call to the subject of your interview you may want to give them a heads up during your pre interview that the caller id may read something strange when you call.

– If you want to learn more about using Skype in a Pro Tools environment from offers a set of instructions for students using their Radio Lab to follow. It might help give you ideas.

– Skype recently introduced a feature known as which are basically large hosted calls open to up to 100 people from anywhere on the planet. Worth a look.

Now, what else are content developers doing with Skype besides podcasting?

Using Skype in Production

targeted at working on text documents, like the popular from are great tools. But what’s a content developer to do when you need to collaborate on a bandwidth hungry and resource intensive video or animation project with a team that is spread out in multiple geographic locations?

is working to meet this challenge with a new application that takes advantage of Skype. Here’s how they describe their product:

syncVUE makes the review and approval process easier than ever before. Multiple people can simultaneously view and annotate local copies of the same media files in perfect sync from different locations – whether separated by cubicles, city blocks, or continents.

The good news here is clients and collaborators don’t need to invest the time and expense of physically traveling to your edit studio to give notes on a project. Depending on the client though, this of course could be bad news for you as well, since it will be much easier for more people to annotate your edit frame by frame.


screenshot from syncvue.com

Still, it’s easy to see the day arriving soon where this kind of remote collaboration feature will be expected by just about every client, and as a result (either through acquisition or innovation) the capability will be built into future versions of popular video editors like , and .

In the meantime, if this is a feature that will make your life easier, you’ll want to keep your eye out for which should be available soon.

One aspect shared by high bandwidth collaboration tools like syncVUE is the need to transfer extremely large files. Email just won’t due for 50 MB+ file sizes, so many shops upload large media files via to their server where geographically dispersed members of the creative process for that project can download them on demand. That system gets the job done ok, but has left plenty of opportunity for applications like from to create a better way to meet this large file transfer challenge.

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screenshot from pando.com

Pando relies on a approach to move your large files around, but the helps integrate this process into your Skype environment.

While Pando and syncVUE are great examples of the way developers are leveraging Skype to overcome collaboration challenges, a lot of work remains to be done in this area. Still, as and more and more companies open up their ‘s, the future looks bright for content developers searching for new ways to improve our workflow.

tags: ; ;

Related item: If you want to learn more about the company JK Audio, has this from late last year with their CEO.

Related item: The is a resource for building your own or third party application that takes advantage of the .

Related item: Looking for a set of headphones? I’ve had good luck with the Sony MDR V6 Studio Monitor series. One downside to this model is that the ear pads may wear out over time, but you can find at and other vendors.

Opt-in Front Page Plugin For WordPress

Filed under production by david cummings on Wednesday 19 July 2006 at 8:20 pm

One of the goals of , an experimental news site I’m working on, is to evaluate how open source tools and publishing platforms can be used in new ways to merge content from traditional and . Alpha version .04 of SanAntonioNews.com was released earlier this month on the blogging platform.

A limitation of many blogging platforms is that they are based on a chronological publishing system. This is also one of the things that make them great. The newest stuff goes up front all the time. That works pretty well for traditional blogs like ContentDeveloper.com (which is built using ), but if you want to create a more robust news and information site you may not always want the most recent items you publish to occupy the most prominent position on your home page.

A quick example. Suppose your blog has several contributors and one of them has just completed a high profile video short that took a couple weeks to finish. Once its published, that high value content occupies the high value real estate that the most recent post traditionally gets in a blog. That is just where you want it, but now imagine that an hour later another contributor to your blog has completed another time sensitive post that needs to be published now but doesn’t carry the weight to knock the other video piece out of the high value position. What can you do without resorting to manually maintaining your front page?

Higher end Content Management Systems used by newspapers and large media companies are built with these situations in mind and offer professional solutions for this kind of control, but many of the blog based platforms currently do not. That is where a plug in like the really comes in handy.

This valuable little plugin gives you the ability to control which of your blog posts occupy your front page positions. This allows you to keep your higher value content out front longer and not get pushed to a lower position automatically just because something more recent gets published.

The way it works is pretty simple. The plugin designates a special category to represent the home page. You can name this category anything you like. Anything not selected for that category gets published only in the other category(s) it is filed in and not on the front page. Any post filed in that special category goes on the front page. Clean.

Have been trying out the Opt-in Front Page Plug-In for a couple weeks now and I’m impressed. Super easy to implement, and the kind of control it delivers helps take WordPress closer to being a more flexible and powerful CMS.

The also offers the which takes a slightly different approach to maintaining the high value screen real estate your front page represents. Have not worked with the Static Plugin, but both might be worth evaluating if you are looking for ways to expand the power of your WordPress based site.

Both plugins are currently free.

Workaround for Internet Explorer ActiveX update

Filed under production by david cummings on Monday 3 July 2006 at 7:37 pm

After evaluating a couple of different approaches available for getting around the recent issue that is impacting many web sites, I like the solution offered by deconcept.

My initial impression is that SWFObject is more intuitive to implement, more flexible and even provides Flash detection as part of the package. , but for me SWFObject just feels a little more on target. Tried it out on one of my older Flash sites and it only took a couple minutes — from download to completion – to get the initial solution in place. And there is more room to tweak when time permits.

Kudos to , SWF Object’s author, for making this solution available.

Eyespot 2.0 beta released

Filed under production by david cummings on Wednesday 21 June 2006 at 8:14 am

rolled out version 2.0 last week. New features include new effects and transitions, automatic support, partnerships with , Concord Records and more.

Eyespot also recently introduced their new for which gives mobile users the ability to receive, play, search, rank and share video directly from their mobile phones.

related post

VideoLinux.net

Filed under production by david cummings on Thursday 15 June 2006 at 9:15 am


screenshot from videolinux.net

, The all in one Video Processing Linux Distribution, is a new Linux distribution packaged specifically for ripping, encoding and processing video. It is still in alpha, but here is list of mirrors from which to download.

Thanks Jimbo for the link.

New trailer for A Scanner Darkly

Filed under production by david cummings on Wednesday 1 March 2006 at 3:01 pm

When first seeing those spots running last year, like many people my first reaction was something like hey, they ripped off .

Have since learned that the same guru of is behind both projects. As well as this summer’s . I think that makes the Schwab campaign less disturbing. I think.

The new trailer is fun. Hopefully the film will live up to it.

Flash, PHP, MySQL & XML

Filed under production by david cummings on Thursday 15 December 2005 at 4:38 pm

Staying up to date on development tools is a never ending battle for the content developer. Being primarlily a multimedia producer, I usually fall behind farthest and fastest in new techniques for integrating database content into multimedia based projects.

The new version of has finally made some great strides in this area. The ability to now more easily use Flash to build front ends for database served content is real.

Found a nice ground level video tutorial on creative cow on how to do this using a MySQL database with PHP serving as a kind of middle ware to get your database content formatted into XML on the fly and then imported into Flash.

Good introduction to it for those who have fallen behind.

AJAX vs. FLASH

Filed under production by david cummings on Thursday 17 November 2005 at 6:26 am

I found Three Minds analysis of the emerging AJAX vs. FLASH debate to be pretty much on target.

I’ve had a love-hate relationship with Flash since building our first site with version 2.0 many years ago. Recent upgrade to version 8.0 Pro has the relationship back on the love side, but nothing lasts forever.

Related post

Sony DVCAM models with possible problems

Filed under production by david cummings on Friday 28 October 2005 at 7:41 am

Imaging-resource has best explanation I’ve been able to find regarding possible CCD problems with Sony DVCAM and other models.

List of Sony professional
camcorders with potential CCD problems
DSR-250 & DSR-250/P
DSR-PD150 &
DSR-PD150P
DSR-PD170 & DSR-PD170P
DSR-PDX10 &
DSR-PDX10P

So far (insert fx – sound of knuckles knocking on wood) we have had good luck with our DSR-PDX10.

Studio 8 First Impressions

Filed under production by david cummings on Wednesday 5 October 2005 at 3:51 pm

Since I skipped the upgrade cycle from Macromedia Studio MX to MX2004 I committed to upgrading to Studio 8 and Flash Professional 8 on first release. The promised new power tools for authoring with video, new mobile content tools and the additional actionscript I had been missing out on made the choice pretty simple. Plus they were offering a free Studio 8 backpack and a “free” jump for Flash 8 to Flash 8 Pro with pre release orders. What better thing to base a software upgrade decision on than a free backpack, right?

(more…)

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