Many processors, such as embedders or encoders, have internal delays, obviating the need for external ones.
At its core, the standard defines digital phantom power (DPP) for a microphone with built-in digital circuitry.
When you think of an acoustical material, what comes to mind? Maybe some kind of dark gray foam glued to a wall? Perhaps orange shag carpeting?
But how meaningful are these specs? Do they provide the information we need to differentiate performance among competing models?
While a podcast need not necessarily be of "broadcast quality," neither should audio quality be ignored.
Before the TEF analyzer came along, one would need a shelf full of different and expensive instrumentation
Fingerprinting or correlation techniques involve comparing two signals, a reference source known to have no lip-sync error, and a second signal somewhere down the signal chain.
If some friends invite you over to check out their favorite TV program on their new wide-screen flat-panel display, you may not want to mention how bad the lip sync is off.
Are audio consoles obsolete in the age of digital audio workstations and computer audio editing programs? Not by a long shot.
This month we'll wind up our series on the structure of AES audio with a discussion of embedded audio in a SMPTE 292M high-definition signal.
As the AES3 digital audio standard allows for word lengths up to 24-bits as well as a variety of sampling rates, SMPTE 272M provides the means for embedding these signals.
It's said that nature abhors a void, so it didn't take long for other types of data to fill this space, digital audio being the most common.
The channel status bits provide a wealth of information about its associated audio channel, which can be used by an AES receiver/decoder for subsequent processing.
There are a few more parts of the AES3 bitstream that still need to be discussed—the timeslots for the digital audio signal, as well as the user and channel status bits.
The new control room was designed to take in many more simultaneous feeds than before, accepting feeds arriving on fiber as data circuits or via satellite.
The AES3 digital audio signal is composed of frames, with each frame containing a digital sample from each of two audio channels.
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