GoodBuyGuys Blog

My experience with using personal computers goes back to the early 1980’s, so I’ve had more than my share of opportunities to set up, take down, reconfigure, and generally wander around computer peripheral cabling. The more I handle this stuff, the more mystified I get.

I began my career as a an audio techncian, and spent many years building, setting up, configuring, and repairing concert sound systems. People who design computer peripheral wiring could learn a lot from the audio industry.

While the performance and compatibility of computer peripherals continues to improve, the interconnections between these devices never catches up. I can’t think of a single data-type connector that comes close to matching the performance of the lowly audio XLR connector, a design that is well into its second half-century of use.

I just spent 15 frustrating minutes trying to replace a computer monitor in the office, only to be reminded that there are at least three (if not more) different pin configurations for a D-sub connector, even though they all have the same physical shell. Maybe, it’s just me, but I almost always have to try to plug in a USB connector at least two times, as there is nothing visible on the outside of the connector to indicate which end is up. I guess there are savings involved in making ethernet connectors with with almost useless plastic locking pins, but the savings quickly evaporate when you spend a half-hour trying to pry one out of a computer port after the release tab snaps off. The list goes on and on.

Audio connectors, on the other hand, are designed to be patched in the dark, repaired (when necessary) in the field, and to be common to hundreds and hundreds of different manufacturers equipment. The Shure SM57 microphone ( probably the most popular and common in the world) uses the same connector now as when it came to market in 1965. A 40 year old SM57 works with a brand new Chinese-made microphone cable right out of the box.

We’re depending more and more on computer-based devices all the time, and the portability designed into these items means that they are constantly having to be cabled and uncabled. Hopefully, manufacturers will consider adopting some connector standards that are up to the task.

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In the rush to jump on the high definition television bandwagon, Honeywell has introduced an HDMI cable that they claim is “self healing”. According to Engadget, Honeywell’s CurexE cable has some sort of error coding built into it that uses inline LED’s to show whether the signal chain is transmitting the correct info to your HD device. It’s hard to understand how they can all the device “self healing” as it has no ability to address problems at either end of the the data transmission so it can’t really “heal” anything.  At best, it can only diagnose what may be wrong with the components it connects.  And that’s on a good day!

Frankly, this item looks like it was developed by the marketing department rather than engineering. Here’s how this product is described in Honeywell’s own press release:

“We’ve made this cable intelligent by integrating a chip into the connector that performs two major functions,” said David Coleman, Program Manager, CE Cable Products, Honeywell. “First, the chip’s line driver ‘cures’ corrupted HDCP and EDID data that can lead to serious audio and video artifacts. Second, we added ‘light’ in the form of LEDs embedded into the connector that let installers monitor the most critical elements of the HDMI interface for problems.”

The parentheses around “cure” are theirs and their description of the “cure” doesn’t really shed much light on this voodoo.

As the broadcast industry approaches the deadline of 2009’s conversion to digital television, a lot of consumers are going to be taken to the cleaners by televion accessory makers who bring very little value to the table. Honeywell’s CurexE cable looks like one of these offerings.

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Having been a sound man for many years, I got used to dragging around lots of specialized tools necessary to get a complicated audio job done. If I had to give up all but one, here’s what I would keep.

The Nady CT6 Cable Tester is a wonderful tool and a really great value. Its a quick way to take the guesswork out of cable testing and a “must have” for on-the-go trouble shooting. This pocket-sized device has ports to test cables with all the major audio connectors, inclucing XLR, Speakon, 1/4 inch (both 2 and 3 conductor) RCA, banana plug and 5 pin Mini-DIN. It also has connectors for test leads so you can test a cable that can’t be plugged directly into the tester.

Finally, it has a test tone that will let you determine continutity without even looking at the tester’s LED display.

This rugged device packaged in a tough metal case with good quality screened labeling will work for months on a single 9v battery.

We keep one in our rental department to make sure that every cable with an outgoing rental gets checked.

Got an audio tool you can’t live without? Share it with us!

GoodBuyGuys.com is your online source for Shurtape gaffers tape, Duracell Procell batteries, MagLite flashlights, Nashua duct tape, Bay State wire ties, Electratrac and Coast Wire extension cords and OnStage Stand mic stands. Count on us to meed your audio needs.

My son and I have been involved in recording my wife playing the piano so she can make some CD’s for her Mother. It has been a fun project, but a lot more complicated than it ought to be.

I was able to provide a couple of professional quality microphones and a mixer, and we run the mixer output into my son’s MacBook Pro, record and edit, and then burn a CD with the Mac. This works very well, but requires a lot of equipment that most people don’t have. It doesn’t matter how great the software for recording and editing on the computer might be, as long as you have to use the microphone that is installed in the computer, your chances of getting a quality recording are very limited.

The MicPort from CEntrance makes this job a whole lot easier. The MicPort is a microphone preamp that lets you plug one or more professional grade microphones directly into your computer, no mixer needed.

The MicPort is a simple inline device that accepts a professional low impedance microphone into one end and delivers the ouput to a USB port on the other end. Now any microphone using a standard XLR connector can be hooked up directly to your computer. This handy little preamp even has a volume control and a headphone output so you can monitor the output of the mic without the annoying delay time you encounter when using a mic through the computer headphone jack. The MicPort even has the ability to apply phantom power so that professional grade condenser mics can be plugged into the computer without the use of an outboard power supply. The whole device is powered from the computer’s USB port, so you don’t even need batteries!

The addition of a MicPort from CEntrance will let anyone involved in field recording leave the mixer at home and get professional quality recordings with just a microphone and a computer. Or, it’s a great way to get an instant increase in audio quality for your podcast.

I’m looking forward to trying it out.

GoodBuyGuys.com is your online source for Shurtape gaffers tape, Duracell Procell batteries, MagLite flashlights, Nashua duct tape, Bay State wire ties, Electratrac and Coast Wire extension cords and OnStage Stand mic stands. Look to us first to meet your recording supply needs.

It’s always interesting to stumble upon a new type of customer for our products, and I have noticed recently that we are getting more and more orders from lawyers and courts. I had not thought much about it until I stumbled on this blog posting.

More and more lawyers offices and courts are struggling with the technical demands of media coverage and the need for tech savy technicians in the courtroom. Many courthouses date back to the earlier half of the twentieth century and they are woefully behind when it comes to providing the kind of support that is now expected by the legal profession, the media and the public. Its not unusual to enter a courtroom now and find mic cables and extension cords held down with gaffers tape all over the room. If the proceedings are high profile, this tangle of cables may stream out the door, down the stairs and out into the street.

The need for audio visual supplies now often extends back to the attorneys’ offices as well. Many law firms have whole departments that are involved in preparing presentation materials for courtroom work. This now extends far beyond the realm of flip charts to include professionally produced videos, wireless mics, enhanced audio recordings and computer-based presentations.

While it is unfortunate that these technical demands may be overwhelming the courtroom, its a great thing that high tech tools are available to participants in the cases.

GoodBuyGuys.com is your online source for Shurtape gaffers tape, Duracell Procell batteries, MagLite flashlights, Nashua duct tape, Bay State wire ties, Electratrac and Coast Wire extension cords and OnStage Stand mic stands. Look to us first to meet your audio visual supply needs.

As someone who has owned and used wireless microphones for years and now sells lots of batteries for them, wireless mic folklore has been part of my work life for years. Recently, I had a chance to examine something that I assumed was unfounded, but turned out to actually be true.

We have sold Duracell Procell batteries for a long time and our largest user base is wireless mic owners. People had told me for years that one reason they preferred the Procell over Energizer’s Industrial line is that the Duracell Procells were slightly longer, and thus made better contact with the battery clips in the microphone transmitter.

I am holding examples of AA batteries from both manufacturers in my hand, and this is absolutely true. My assumption that all AA batteries are the same size was wrong and our customers absolutely knew what they were talking about.

We are in negotiations with another battery manufacturer now, and one of the criteria we will use when considering whether to offer their AA and AAA batteries at Buybattery.com will be how long they are.

I never cease to be amazed at what can be learned from listening to our customers.

GoodBuyGuys.com is your online source for Shurtape gaffers tape, Duracell Procell batteries, MagLite flashlights, Nashua duct tape, Bay State wire ties, Electratrac and Coast Wire extension cords and OnStage Stand mic stands. Look to us first to meet your microphone accessory and battery needs.

I have periodically written in this space about the problems with using rechargeable batteries in wireless microphones. My primary concern regards being able to accurately predict the discharge rate for this type of battery and the problems they can cause in wireless mic use. These batteries use lithium technology, and it now turns out that there may be a much more significant problem when using rechargeable lithiums.

Information Week, a highly regarded technology publication, reports in the latest edition about exploding batteries in Chinese cell phones, including one that killed a Chinese welder. This was reported to be a Motorola phone, but Motorola’s response has been that the phone and/or the battery may have been counterfeit. If so, then Motorola might not have responsibility.

However, problems with counterfeit batteries or counterfeit Chinese products could easily invade the audio-visual market. There are many Chinese made wireless microphones on the market and lots of users think that they can save money buy buying offbrand lithium rechargeables for their mics.

Information Week is not the only source of info on exploding cell phone batteries. According to Engadget.com The Consumer Product Safety Commission reports 83 complaints on this matter in the last two years. They also point a finger towards suspect third party battery quality.

Furthermore, the problem seems to be made worse by overcharging the batteries, something that happens regularly with wireless mics, as they are often left in charge mode long after they are fully charged.

We don’t know of any reports of exploding AA, 9Volt or AAA lithium rechargeables, but the high number of reports about problems with all sorts of Chinese products gives me pause when thinking about any battery powered device that I might hold in my hand or close to my face.

For the time being, this would appear to be one more reason to wait for better future developments on rechargeable batteries for wireless mics and stick with alkalines.

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I periodically review both good podcasts and random pieces of interesting audio equipment. This posting is about both, or neither, depending on your point of view.

The podcast is GearMediaTech, one of the many podcast enterprises run by Leo Laporte of TWIT.tv. This particular podcast deals with audio equipment that might be of interest to podcasters who might want to learn more about audio or to improve the sound quality of their podcasts. But, like I said, this posting is not really about the podcast.

The particular podcast I am referring to is a discussion about the dbx166 limiter/compressor. I spent many years as a live sound technician and, without a doubt, the limiter/compressor wins the award for combining the most important functionality and the most confusing learning curve of any component used on pro audio. Knowing how to use a compressor/limiter properly can dramatically improve the quality of a live or recorded mix, but these things have enough knobs on them make your head swim. They use really confusing terminology like “threshold” and “expander” and incorrect use can really wreck a mix.

Proper use of a compressor/limiter is a lot like gaffers tape for audio. It holds the signal (as opposed to the cable) exactly where you need it to stay and then comes off clean (no distortion or audio coloration) when it is no longer needed.

Over the years I have owned lots of these units and would never want to do a loud or complicated show without them. But, this posting is not really about the dbx166.

What I am really writing about is good inherent design, and I was stunned to learn that a piece of gear that I have owned for years might have been a lot easier to learn to use than I realized. Scott Bourne, who partners with Leo Leporte on this podcast, points out in introducing the dbx166XL that you can get the classic dbx compressor sound by simply setting all the controls in the 12 o’clock position. Who knew? While this may oversimplify the use of this component, knowing now that you can have a good starting point for compressing your audio by simply setting all the knobs in the straight up postion is a great piece of info. Wish I had known about this in 1988!

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Its been a while since I reviewed a cool new microphone. Calling the new FlashMic form HHB a microphone is like calling a computer a typewriter. Microphone just begins to describe this great new technology.

The FlashMic combines a handheld mic and an onboard digital recorder that has a full gigabyte of storage. The whole thing runs on AA batteries. No recorder, no cables, nothing but a handheld mic. It uses a quality Sennheiser mic capsule (cardiod or omni) and can record as much as 18 hours of broadcast quality audio.

This is a whole new take on the wireless mic concept. Rather than sending audio wirelessly to a receiver, it simply stores the audio for later downloading into a computer via an onboard USB port. Once you hook the FlashMic up to your computer, you can simply “drag and drop” audio files directly from the mic to your computer. It also has a standard headphone jack so you can listen to the audio directly from the mic or have an audio output that can feed conventional analog audio equipment.

What a great way to do a podcast!

GoodBuyGuys.com is your online source for Shurtape gaffers tape, Duracell Procell batteries, MagLite flashlights, Nashua duct tape, Bay State wire ties, Electratrac and Coast Wire extension cords, OnStage Stand mic stands, and  handy products for audio production.