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Using the auxiliary ports

An overview of what the auxiliary ports on the HDL300 system's connect module are for.

The auxiliary port options are located in the controls section of Nureva Room Manager.

All connections are unbalanced 3.5mm ports with a 3-contact tip ring sleeve.


Auxiliary out

Different auxiliary output modes can be selected in Nureva Room Manager for interoperability with different audio systems.

This table outlines different settings for the auxiliary out port for which type of device that's being connected. The default signal is echo-canceled microphone pickup with a maximum output level of 0.92 Vrms

Make sure to disable sleep mode before enabling any of the auxiliary out settings.

More about the auxiliary ports

For a detailed description of the auxiliary in and auxiliary out ports, see our what kind of auxiliary jacks are compatible with the HDL300 system? article.


Microphone out (mic level)


The output contains in-room microphone pickup that is echo cancelled (near-end or local audio).

Microphone out (line level)


The output contains in-room microphone pickup that is echo cancelled (near-end or local audio).

Speaker out


The output contains far-end audio for playback on external speakers. The output is a mono signal and the HDL300 speakers are disabled. Near-end audio to the computer and far-end audio from the computer is sent by USB. For best results, volume should be controlled from the computer and amplifier settings should be fixed.

Mixed


The output contains both near-end and far-end audio mixed into one signal. With a mixed signal, hearing aid transmitters can transmit both the in-room audio and far end to hearing aid devices.

More about Mixed mode

For more details and suggestions on how to use the HDL300 system's mixed mode, see our which devices can I use with mixed mode? article.



Mic level is maximum 0.23 Vrms (0.65 Vp-p) into 10 Kohm load.

Line level is maximum 0.92 Vrms (2.6 Vp-p) into 10 Kohm load.


Auxiliary in

Speaker input


Audio for playback to the room.  The signals from the auxiliary in port will get mixed with any signals from a USB audio source.
*make sure to disable sleep when using the auxiliary in.


Sleep

If you're using any auxiliary in or out connection, make sure to disable sleep under the auxiliary ports options. 




Last updated: May 30, 2018

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