Difference between revisions of "Dynamic Range Compression (DRC)"
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− | '''Dynamic Range Compression (DRC)''' is a feature in the [[:Category:Intercoms and Devices|Zenitel IP devices]]. The DRC | + | '''Dynamic Range Compression (DRC)''' is a feature in the [[:Category:Intercoms and Devices|Zenitel IP devices]]. The DRC is an audio signal processing function that helps even out the loud and quiet parts. Lower signals will get gain applied, but not more than there is headroom for up to [https://en.wikipedia.org/wiki/DBFS digital full scale]. |
For intercom devices and IP Speakers the DRC will normally have a good effect on regular speech signals, and will often increase the loudspeaker output noticeably. For already maximized signals, such as prerecorded alarm tones, DRC will have little or no effect. | For intercom devices and IP Speakers the DRC will normally have a good effect on regular speech signals, and will often increase the loudspeaker output noticeably. For already maximized signals, such as prerecorded alarm tones, DRC will have little or no effect. |
Revision as of 08:02, 24 October 2023
Dynamic Range Compression (DRC) is a feature in the Zenitel IP devices. The DRC is an audio signal processing function that helps even out the loud and quiet parts. Lower signals will get gain applied, but not more than there is headroom for up to digital full scale.
For intercom devices and IP Speakers the DRC will normally have a good effect on regular speech signals, and will often increase the loudspeaker output noticeably. For already maximized signals, such as prerecorded alarm tones, DRC will have little or no effect.
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Configuring the DRC feature
Configuration is done from the Audio Settings menu. First enable Advanced Configuration mode. Depending on the mode of operations, select:
- Edge mode: Edge Configuration > Audio Settings > Audio signal processing
- SIP mode: SIP Configuration > Audio Settings > Audio signal processing
- ICX-AlphaCom mode: Advanced ICX-AlphaCom > Audio Settings > Audio signal processing
Dynamic Range Compression configuration menu (firmware 7 and later) |
- Enable DRC: Check the box to enable the DRC function.
- DRC gain: Specifies the maximum gain which will be added to the signal.