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AEC

speech only.

ERLE Meter

The Echo Return Loss Enhancement (ERLE) meter displays how much acoustic echo is

being removed from the signal. This measurement includes both the natural room

attenuation as indicated by the ERL meter and the amount of echo removed by the AEC

algorithm. A lower level indicates more echo being removed. The lower the meter, the

better.

Note:

As dictated by industry standards, NLP (Non-Linear Processing) contributions

are not included in the ERLE reading. NLP contributions are made in addition to this

meter's reading.

NLP Strength

The Non-Linear Processing (NLP) Strength setting determines the amount of non-linear

suppression that will be applied in conjunction with the AEC algorithm. NLP will remove

the residual echo not removed by the linear part of the AEC algorithm.
This parameter represents a trade-off between achieving good double-talk performance,

with no suppression of the local speech signal, and very robust echo suppression, with

no echo audible on the far side.
At its most aggressive setting (NLP at 80%), the non-linear processing will remove any

of the residual far-side echo picked up by the microphone. However, this is done with an

increased risk that some of the near-side speech will be degraded as well, especially

during double-talk. At its least aggressive setting (NLP at 0%), the non-linear processing

is effectively disabled, which may let some echo through, but will allow for a more

natural double-talk performance.
The best setting for this parameter may depend on several factors, including the

acoustic properties of the room and user preference. The default value of 42% may give

a good balance between these two competing goals.

Auto Gain Control On/Off Switch

This switch turns AGC on or off.

Note:

Do not use AGC in conjunction with an AutoMixer. Doing so will cause

unpredictable and uncontrollable level fluctuations.

Содержание DCP-555

Страница 1: ...DCP 555 Help File...

Страница 2: ...Confirm New Password 3 Update Password Button 3 Audio Settings 4 Filter 4 Overview 5 Mute All Outputs 5 Save Icon 5 Input Channel Selection Gain and Mute 5 Input PEQ 6 AEC 6 Compressor 6 AutoMixers 6...

Страница 3: ...y 13 Launch Dialer Button 13 USB Input Type 15 Input 15 Channel Assignment Array 15 AES67 Input Type 16 BLU Link Input Type 17 Input Meter 17 Input 17 Channel Assignment Array 17 Input PEQ 18 On Off S...

Страница 4: ...io 24 Gain 24 Signal Generator 25 On Off Switch 25 Signal Generator Type 25 Frequency 25 Level 25 AutoMixer 26 AutoMixer Name 26 Arrow Buttons 26 Input Channel Name 26 Input Gain 26 Mute Button 26 Sol...

Страница 5: ...t Array 31 Launch Dialer Button 31 USB Output Type 32 Output 32 Channel Assignment Array 32 AES67 Output Type 33 BLU Link Output Type 34 Output 34 Channel Assignment Array 34 Output PEQ 35 On Off Swit...

Страница 6: ...ress 41 Subnet Mask 41 Gateway 42 MAC Address 42 BLU Link Settings 43 Version 43 MAC 43 Master MAC 43 Master Priority 44 Sample Rate 44 Priority 44 Input Port Status 44 Input Corrected Count 44 Input...

Страница 7: ...Stun Enabled Switch 51 Register With Domain Switch 51 Registration Life 51 Registration Retry 51 Proxy Address 51 Proxy Port 51 Signaling Port 52 SRTP Preference 52 RTP Port 52 RTP Port End 52 Ring Ty...

Страница 8: ...Answer On Off Button 58 Do Not Disturb On Off Button 58 GPI Ports 59 GPI Port 1 16 60 Input Connected To 60 Control Setting 60 Select Parameter to Control 61 Volume Parameter to Control 61 Volume Sta...

Страница 9: ...low Control 64 Device Settings 65 Locate Button 65 Model ID 65 Firmware Version 65 Update Firmware Button 65 Front Panel Lockout 65 Backlight Timeout Setting 66 Home Screen Timeout Setting 66 3rd Part...

Страница 10: ......

Страница 11: ...le button to load an existing configuration file Menu Icons Use these icons to navigate the app User Icon Select this icon to change the login password or sign out Create New Press this button to crea...

Страница 12: ...n hovering over a configuration Press this button to download the configuration to the control device Edit Configuration Name This button appears when hovering over a configuration Press this button t...

Страница 13: ...is a required field Confirm New Password Enter the new password again into this field for confirmation The asterisk indicates that this is a required field Update Password Button When done press this...

Страница 14: ...can be stereo ganged if required for the application Any combination of output types can also be configured i e analog VoIP USB etc Same type outputs can be stereo ganged or each output can be duplica...

Страница 15: ...guration Select Save As to save the changes as a new configuration Input Channel Selection Gain and Mute Select the white area of an input channel to view the Input Channel Configuration settings The...

Страница 16: ...ettings for an input channel Input channels 13 28 have a Compressor available AutoMixers There are a total of 4 AutoMixers located in the center of the Audio Settings page To route channels through an...

Страница 17: ...Mute Select the white area of an output channel to view the Output Channel Configuration settings The dot to the right of the gain slider lights red to indicate clipping Press the Output Mute button...

Страница 18: ...ll signal the signal to be cancelled so that it isn t transmitted as an echo There are a total of 4 AEC Reference Groups one for each conference room Before assigning any AEC Reference Groups you must...

Страница 19: ...Compressor instead Input Type Select the desired input type using these radio buttons Options include Analog VoIP USB AES67 BLU Link and Not Used Note To configure a channel you must select an Input...

Страница 20: ...ch Use this switch to stereo gang input channels To stereo gang two channels you must first configure both with matching Input Type selections e g analog VoIP USB etc The Stereo Input switch will then...

Страница 21: ...the left of the meter lights green to indicate signal presence or red to indicate clipping Input Use this field to assign an analog input channel Channel Assignment Array This assignment array displa...

Страница 22: ...ophone input Enable this button only if you are connecting condenser type microphones which require phantom power to operate To avoid any potential plosives through the system it is recommended to ens...

Страница 23: ...e left of the meter lights green to indicate signal presence or red to indicate clipping Input Use this field to assign a VoIP input channel Channel Assignment Array This assignment array displays an...

Страница 24: ...DCP 555 Help File 14 Press this button to open the Dialer for the selected VoIP input line...

Страница 25: ...15 USB Input Type Input Use this field to assign a USB input channel Channel Assignment Array This assignment array displays an overview of the USB input channels assigned in the current configuration...

Страница 26: ...16 AES67 Input Type This feature to be implemented in a future firmware release...

Страница 27: ...ot to the left of the meter lights green to indicate signal presence or red to indicate clipping Input Use this field to assign a BLU link input channel Channel Assignment Array This assignment array...

Страница 28: ...18 Input PEQ On Off Switch This switch turns the PEQ on or off Filter Band Selection Use these buttons to select one of the five available bands for editing Type...

Страница 29: ...bands Press the button again to restore flattened bands Graphical Display Grab the numbered filter bands in this display to adjust gain and frequency settings graphically Gain This slider adjusts the...

Страница 30: ...r off ERL Meter The Echo Return Loss ERL meter is a measure of the room s natural attenuation of the far side audio as it is emitted through the conference room speaker s and re enters the microphone...

Страница 31: ...off between achieving good double talk performance with no suppression of the local speech signal and very robust echo suppression with no echo audible on the far side At its most aggressive setting N...

Страница 32: ...the signal level is below the target Values range from 0dB to 20dB Target Level Adjust this field or slider to set the desired target level to be achieved and maintained AGC Activation Threshold This...

Страница 33: ...or on or off Graphic Display Displays the compression curve with input level on the bottom and gain reduction on the right Click and drag the cyan node to graphically adjust Threshold and the yellow n...

Страница 34: ...before clamping down on the signal Release Use this slider or field to adjust how quickly the Compressor will release the compressed signal once it falls back below threshold Gain Reduction Meter This...

Страница 35: ...hese radio buttons to select the desired type of signal to generate White Noise Pink Noise or Sine Wave Frequency When the Sine Wave signal generator type is selected use this slider or field to selec...

Страница 36: ...e AutoMixer name Arrow Buttons Use these buttons to navigate between the four available AutoMixers Input Channel Name Click the Pencil icon to rename an input channel Input Gain Use this slider or fie...

Страница 37: ...rmines how quickly a channel recovers from being open Fast settings will be needed if different speakers are speaking in quick succession since slow settings would prevent a newly active channel from...

Страница 38: ...n to create a mirrored output which can then be assigned to a different output channel This provides the ability to route a signal to multiple outputs Any changes made to an output s processing parame...

Страница 39: ...or red to indicate clipping Use the Output Gain field or slider to adjust the final output level pre Limiter Use the Mute button to mute the output channel Note that these settings will also affect an...

Страница 40: ...og Output Type Output Use this field to assign an analog output channel Channel Assignment Array This assignment array displays an overview of the analog output channels assigned in the current config...

Страница 41: ...sign a VoIP output line Channel Assignment Array This assignment array displays an overview of the VoIP output lines assigned in the current configuration Launch Dialer Button Press this button to ope...

Страница 42: ...USB Output Type Output Use this field to assign a USB output channel Channel Assignment Array This assignment array displays an overview of the USB output channels assigned in the current configurati...

Страница 43: ...33 AES67 Output Type This feature to be implemented in a future firmware release...

Страница 44: ...k Output Type Output Use this field to assign a BLU link output channel Channel Assignment Array This assignment array displays an overview of the BLU link output channels assigned in the current conf...

Страница 45: ...35 Output PEQ On Off Switch This switch turns the PEQ on or off Filter Band Selection Use these buttons to select one of the five available bands for editing...

Страница 46: ...s Graphical Display Grab the numbered filter bands in this display to adjust gain and frequency settings graphically Gain Use this slider or field to adjust the gain of the selected filter band with a...

Страница 47: ...limiting curve with input level on the bottom and gain reduction on the right Click and drag the cyan node to adjust the Threshold parameter of the Limiter The orange node indicates signal level Gain...

Страница 48: ...ck Use this slider or field to adjust how quickly the Limiter will clamp down on the signal Lower values will clamp down on the signal quickly whereas higher values will let some of the signal pass be...

Страница 49: ...s DHCP Fixed Buttons DHCP is the default setting This allows the DCP 555 to initially receive an IP address from a DHCP server If the application requires a static IP address click the Fixed button an...

Страница 50: ...ld displays the gateway assigned to the DCP 555 If Fixed is selected this field can be edited and the desired gateway can be entered MAC Address This field displays the MAC address of Ethernet port A...

Страница 51: ...e the desired edits have been made on the page press this button to save the changes DHCP Fixed Buttons DHCP is the default setting This allows the DCP 555 to initially receive an IP address from a DH...

Страница 52: ...selected this field can be edited and the desired subnet mask can be entered Gateway If DHCP is selected this field displays the gateway assigned to the DCP 555 If Fixed is selected this field can be...

Страница 53: ...ls at 96kHz The DCP 555 supports 28x32 channels of BLU link audio at 48kHz Version This field displays the current firmware version of the DCP 555 s BLU link hardware MAC This field displays the MAC a...

Страница 54: ...o BLU link devices have the same Master Priority setting then each device s MAC address are compared to determine which will be the master with the device with the higher MAC address winning If connec...

Страница 55: ...ed If no valid connection is made to the BLU link bus Not Connected will be displayed If Error is displayed this indicates the BLU link input and output cables may be swapped or the BLU link sample ra...

Страница 56: ...ovide these URLs to the client for access to the Dialer for each configured meeting room Reconfigure Button After changing settings on the page press this button to save the changes Transport Type Thi...

Страница 57: ...rs scale with T1 and changing T1 adjusts their values T2Timer 4000 ms Specifies the maximum retransmit interval for non INVITE requests and INVITE responses For unreliable transports requests are retr...

Страница 58: ...DCP 555 Help File 48 This field displays the MAC address of the DCP 555 s VoIP port...

Страница 59: ...49 VoIP Line 1 4 Settings...

Страница 60: ...est the selected VoIP line and configure volume levels Account Status This field displays the registration status of the VoIP account Username Enter the VoIP extension assigned to the user s VoIP line...

Страница 61: ...may override this setting with a value of its own If an acknowledgement has not been received from the proxy within the agreed time the VoIP port registration information kept in the proxy s database...

Страница 62: ...e default port that RTP is using RTP Port End This field sets the last RTP port that will be used by the VoIP line This parameter s range is from 0 65535 Ring Type Ring type can be selected as Classic...

Страница 63: ...icable When this switch is set to OFF the DTMF On Time and DTMF Off Time values can be set manually Minimum on off time is 50ms and maximum is 1000ms DTMF On Time ms This field sets the length of time...

Страница 64: ...user agent server UAS and any proxies of the minimum value that the user agent client UAC accepts for the session timer duration Keepalive Switch When this switch is turned ON TCP keepalive functiona...

Страница 65: ...ator lights red to indicate the VoIP line is not connected and green to indicate it is connected Telephone Keypad This keypad provides the standard dialing keys for telephone operation Telephone Displ...

Страница 66: ...VoIP Line Settings window using the Auto Answer Ring Count field Do Not Disturb On Off Button Enable this button to disallow incoming calls Send Volume TX Use this field or slider to adjust the level...

Страница 67: ...each meeting room Line Status Indicator This indicator lights red to indicate the VoIP line is not connected and green to indicate it is connected Telephone Keypad This keypad provides the standard di...

Страница 68: ...ne off hook and then place it back on hook again Volume Up Down Use these buttons to adjust the level of the incoming audio of the VoIP interface Redial Press this button to redial the last dialed num...

Страница 69: ...59 GPI Ports...

Страница 70: ...ntrol muting for a channel using a latching contact closure switch Contact Closure Momentary Select this option for push to talk control of a channel using a momentary contact closure switch None Sele...

Страница 71: ...IP line Tx mutes and mute all Volume Parameter to Control Available only when the BSS Contrio AC V option is selected for the Input Connected To field above use this field to select the volume paramet...

Страница 72: ...associated GPO port Options include all configured input and output channel mutes conference room AutoMixer mutes VoIP line Tx mutes and VoIP line off hook status Inversion Switch Use this switch to i...

Страница 73: ...e associated relay port Options include all configured input and output channel mutes conference room AutoMixer mutes VoIP line Tx mutes and VoIP line off hook status Inversion Switch Use this switch...

Страница 74: ...t which bits are transmitted for the serial interface Data Bits This field specifies the number of data bits to transmit over the serial interface Stop Bits This field specifies the number of bits use...

Страница 75: ...ich device is being controlled when multiple DCP 555s exist on the network Model ID This field displays the model of the connected device Firmware Version This field displays the firmware version inst...

Страница 76: ...r a period of inactivity The available options are Disabled 10 minutes 5 minutes 4 minutes 3 minutes 2 minutes 1 minute 30 seconds and 10 seconds Home Screen Timeout Setting This field sets the amount...

Страница 77: ...The DCP 555 supports 3rd party control and monitoring via RS232 or Ethernet For information on the DCP 555 control protocol see the DCP 555 Control API Guide located at https bssaudio com en products...

Страница 78: ......

Страница 79: ...nel Assignment Array 13 15 17 20 38 39 41 43 Channel Override Switch 33 Compressor 5 11 28 Compressor button 5 Compressor Tabs 11 Confirm New Password 3 Contact Closure 74 Current Password 3 D Dashboa...

Страница 80: ...3 Input Channel Selection 5 Input Connected To 74 Input Corrected Count 54 Input Error Count 54 Input Error Reset Button 54 Input Gain 33 Input Meter 13 15 20 Input Mute 5 Input PEQ 5 22 Input PEQ but...

Страница 81: ...Button 54 Output Gain 36 Output Mute 5 Output PEQ 5 44 Output Port Status 54 Output Type 36 P Pencil 11 33 36 Phantom Power 13 Pick Up 69 72 Pink Noise 31 Plosives 13 Preamp Gain 13 Proxy Address 62...

Страница 82: ...62 Transport Type 59 U UDP 59 Update Firmware Button 85 Update Password Button 3 Upload 1 Upload From File 1 USB Input Type 17 USB Output Type 41 User Icon 1 Username 62 V VoIP 5 11 15 36 39 52 59 62...

Страница 83: ...73...

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