skip to Main Content

Dolby Voice From a Distance

In my gig at ZipDX I work with some very interesting people. Barry Slaughter-Olsen is one of those people. Barry is a professor at the Middlebury Institute of International Studies at Monterey, where he teaches the art of simultaneous interpretation to a new generation of language professionals. He’s also the co-founder of Interpret America, a group dedicated to raising the profile of interpreting. Further, he’s the GM of Multilingual Operations for ZipDX.

All of the above builds upon the fact that he’s a tremendously skilled conference interpreter. He also happens to be a self-professed geek, which is handy in business that, like so many others, is facing an onslaught of new technologies.

Barry Tweets.jpg

The other day Barry posed a question via twitter. In reference to Dolby Voice he asked “is this any better than #HDVoice?” It’s good question, so I did a little digging.

Read More

Introducing VB-Audio’s Spectralissime

It’s been said that, “You can’t manage what can’t be measured.” While this idea is most generally true, it’s definitely true with respect to various types of signal systems. Throughout my career I’ve focused on audio and video production, so I find myself drawn to new tools in that space.

A couple of years ago I discovered Vincent Burel’s VB-Audio software. His Virtual Audio Cables, VoiceMeeter, and later VoiceMeeter Banana, have fundamentally changed how I handle sound on my computers.

A short while ago he released a new software package called “Spectralissime.” This program is a real-time audio analyzer (RTA.)

RTAs are used to evaluate the spectral makeup of a sound. That is, they create a visual representation of the loudness (Y axis) vs the frequency (pitch) along the X-axis.

RTA’s are profoundly useful. In the most simple case, I’ve used them to evaluate a signal path for HDVoice capability. I’d send a white noise tone across a SIP link between two soft phones, comparing the the result against the original tone.

A more common use would be to setup a music playback system. It would help you to balance the low, mid- and high-frequency playback elements. They’re routinely used to analyze the acoustics of a room for unwanted resonances.

Read More

The Big Blue Yeti, Soft Phones & Audio Sample Rate

dialpad-windows-desktop-yetiA short while ago friend and telecom luminary Dave Michels contacted me about a problem he was encountering with his Blue Yeti USB microphone. While he appreciates the benefits of a headset, he prefers to not use one when there’s video involved.

Dave uses the Yeti when recording videos and participating in various UC podcasts. He’s recently started to use it with the Dialpad soft phone. That’s the service that provides his home & office phones.

The Yeti is a fine microphone for many purposes. The combination of USB convenience, handy level controls and low-latency monitoring makes it an excellent choice for podcasters. I recently wrote a blog post for ZipDX that describes its use by a professional interpreter in the UK.

In Dave’s case, when using the Yeti with Dailpad others on the call would complain that his volume was very low. So much so that he was forced to switch to his Plantronics Savi headset. They also complained that “he sounded bad.”

To solve these problems the two of us set about a quick investigation. What we found is potentially useful, so I’m sharing it here with y’all.

Read More

1More: My New Best Buds..Maybe.

1More Triple Driver EarphonesI’ve long been, and to this day remain a fan of the Etymotic Research line of earphones. In fact, I had three product generations from them. Most recently their HF5’s which remain my favorite noise reducing earphones. That said, in recent times I don’t find myself in need of noise reducing earphones as much as in the past. After 20 years of routine business travel, in 2013 I gave up my relationship with the airlines in favor of a continuous home life.

So when my current set of HF5’s started looking a little worn out it I occurred to me that I could try something new and different. That was about a year ago. While I was curious about some of the multi-driver Shure IEMs their >$300 price point put them out of reach.

Read More

BoomStick or BoomSchtick?

It’s Monday as I begin to set these bytes in order, so I may be predisposed to be extra crotchety.  Consider yourselves warned.

Today’s news dump was largely unremarkable, with a singular exception thus far; Mashable’s Lance Ulanoff penned a sort of mini-review of an audio enhancement gadget called the BoomStick.

boomstick

Various aspects of the this piece cause me concern. It’s basically hollow. For example, the author offers:

“According to the manufacturers, it can enhance virtually any audio source with a built an advanced digital signal processor (ADSP) that includes psychoacoustic base adjustment, spatial enhancement and high-frequency contouring. They all combine to, BoomCloud 360 claims, reveal latent audio qualities — things that can get masked in a sound mix. “

Read More
Back To Top
%d bloggers like this: