Patchbay – II

Connections Below, an example of how they are connected the various instrumentations and how they are written the various notes on patchbay (fig.1) Fig. 1 (typical situation from the recording studio, as mpe.berklee.edu) n.b. Before starting to physically wrap any audio instrumentation and / or write the various notes on Patchbay strips, it is recommended … Continue reading Patchbay – II

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Patchbay – I

The Patchbay sometimes also called Patch Panel in an audio environment, is an outboard component that is used for effecting routing, namely to deploy audio signals from and toward the inputs and outputs depending on requirements, it is presented as a rack (figure 1) this is to follow the dimensional standard generally used for outboard … Continue reading Patchbay – I

Splitters and Summings – IV

Sync and Word Clock Fig. 1 When we talk about digital audio we will see in more detail the importance of a correct and stable Word Clock, for the moment let's just understand its importance in connecting digital audio equipment. Each digital connection has a generally green LED (as seen in Figure 1, defined as … Continue reading Splitters and Summings – IV

Splitters and Summings – III

Notes on managing outputs in Stage Box - Digital Splitters Whether Audio Splitter or Passive Stage Box, Active or Digital, some optimal connection solutions as needed are: Connect the monitor outputs according to the given position, for configurations at groups of the Stage Box – Splitter. If Splitters are analog passive or active the only … Continue reading Splitters and Summings – III

Splitters and Summings – II

Active Analog Audio Splitter Unlike the passive ones, very often the Active Audio Splitters are separate modules that are not part of the Stage Box, they need external power supply to be able to operate as they have amplification circuits. They exclusively have XLR inputs and copies thereof always with balanced XLR output, because their … Continue reading Splitters and Summings – II

Splitters and Summings – I

Audio Splitter The Audio Splitter (fig. 1 and 2) is a useful tool when you need to divide an audio signal into multiple parts and also seen as a D.I. Box can be in some cases a Splitter. For example, in a live situation where you have the F.O.H (front of house mixer). (for mixing … Continue reading Splitters and Summings – I

Stage Box – III

Digital Interfaces As defined, Digital Audio Mixers and Digital Stage Boxes, but also as we will see any audio device that allows to accept and transmit to this type of protocols (such as power amplifiers, radio microphones and signal processors) to dialogue each other they need Interfaces that work in the same protocol, some already … Continue reading Stage Box – III

Stage Box – II

Digital Stage Box or I/O Interface For the management and transfer of audio signals from and toward the Stage Box, in digital domain it does not have input and output connections but bidirectional connections are used (generally on conductors Cat 5 - 6 - 7, BNC, Fiber Optics) (for Standard such as MADI, DANTE, AES50, … Continue reading Stage Box – II

Stage Box – I

STAGE BOX A Stage Box as the word itself tells is a module that is generally found on the stage (live concert) or in the recording room (recording studio context) or however in proximity of microphones and signal lines whose task is to collect all these lines and transfer them over long distances, example from … Continue reading Stage Box – I

D.I. Box – III

Objective differences between Passive D.I. Box and Active D.I. Box (from Radial Engineering Ltd.) The representations that follow are references of 2 D.I. Box of the highest quality. Passive D.I. Box (Radial JDI) Activate D.I. Box (Radial J48) Dynamic and Frequency response: The Passive D.I. Boxes dominate the aspect of Dynamics, but only in the … Continue reading D.I. Box – III