[EAS] EAS Logs with Multiple Stations

Harold Price hprice at sagealertingsystems.com
Mon Jan 23 18:46:07 CST 2023


Yes, you are correct.  Engineers should listen in to the actual output from time to time as the ultimate QA.  RMTs are usually scheduled in advance, and an RWT can be sent at your discretion. As for the ENDEC, there are several different gain stages in the audio path.  While the problem can be inputs that are too hot, bad autio can also be caused by the record gain or the playback level.  You don't get audio distortion into other channels unless the combined settings result in a very high output level (>14dBu).  The Tools/Levels page shows what the actual output levels would be if each input was played back on the output at that time, and highlights high levels in red.

See https://www.sagealertingsystems.com/SB_001c.pdf for a write up that shows how to adjust the levels.

As Sid points out, the front panel monitor to speaker menu jumps the audio from the input to the output, bypassing the DSP stages.  It is meant as an aide to making sure you have the right wires attached, and not as a level adjustment aid.

Harold

On Mon, Jan 23, 2023 at 2:16 PM Sid Schweiger sids1045 at aol.com> wrote:
>And in turn I agree with Dave, for an additional reason:  The audio input amps on the Sage have very little overhead.  Overdriving the audio inputs on the Sage, even by a little, will wreak havoc with all the audio inputs and may affect required monitoring and relays.  An overdriven input will severely distort its audio and will spill that distorted audio over into the other inputs.  To check the audio, you must rely on the web interface.  Listening through the front-panel speaker uses an entirely different audio path and won't tell you if the inputs are overdriven.



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