Dial Tone Level A setting in the Channel Property Configuration window for Telco Rx channels that allows you to adjust the dial tone level in 1dB steps to ±12dB.
DNS (Domain Name System) Part of the IP protocol suite, DNS manages the translation of
DTMF (Dual Tone Multi Frequency) Dialing DTMF or
DTMF (Dual Tone Multi Frequency) Level A setting in the Channel Property Configuration window for Telco Rx channels used to adjust the level (volume) of the DTMF tones that are heard when dialing. Level can be adjusted in 1dB steps to ±12dB.
EC (Echo Canceller) Reference A signal that contains an electronic copy of all signals which will be removed from the signal the mics pick up. This is always the
EC (Echo Canceller) Reference Summing The ability to combine multiple signals in a single echo cancellation reference signal. See also Virtual Reference.
ERL (Echo Return Loss) The ERL meter shows the coupling between the reference signal and the input to the echo
ERLE (Echo Return Loss Enhancement) The echo return loss enhancement (ERLE) meter shows the loss through the echo cancellation and NLP
Expansion Bus Consists of two
Expansion Bus Reference The Expansion Bus Reference allows you to reference an output on another Converge Pro device in a site for Echo Cancellation and PA Adaption.
Filter A device that passes and blocks audio signals based on
•All Pass A filter that provides only phase shift or phase delay without appreciably changing the magnitude characteristic. The filter produces a flat amplitude response. It is useful for matching the delay of two processing channels with different delays.
•High Pass A filter that passes high signal frequencies while attenuating low frequencies.
•High Shelving Provides boosting or attenuation of frequencies above a designated frequency. The transition between the spectrum above and below the designated frequency occurs at a fixed 6dB/octave rate. The gain or loss above the corner frequency is adjustable to +/- 15dB.
•Low Pass A filter that passes low frequencies while attenuating high frequencies.
•Low Shelving Provides boosting or attenuation of frequencies below a designated frequency. The transition between the spectrum above and below the designated frequency occurs at a fixed 6dB/octave rate. The gain or loss below the corner frequency is adjustable to +/- 15dB.
First Mic Priority Increases the audio level required to gate on additional microphones after the first mic is on. This helps ensure that only one mic gates on when a person speaks.
Gain The amount a signal is increased over a given reference, typically 0, normally specified in dB (decibels). On Converge Pro devices, gain is adjustable from
Gain Structure A set of configuration parameters that define the gain characteristics of a signal. The optimal input gain setting is one which provides both an adequate
Gateway A device used to provide external network access to client devices on IP networks. All traffic with IP addresses outside the specified subnet mask are automatically routed to the gateway. See also DHCP and Subnet Mask.
Gating The activation and deactivation of mic inputs. Converge Pro provides three types of microphone gating:
