Related Manuals for Shure SCM820E-DB25
Summary of Contents for Shure SCM820E-DB25
- Page 1 SCM820 Digital IntelliMix ® Automatic Mixer USER GUIDE 27A20290 Rev. 4 ©2017 Shure Incorporated...
- Page 2 Changes or modifications not expressly approved by Shure Incorporated could interference by one or more of the following measures: void your authority to operate this equipment.
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Page 3: Table Of Contents
Table of Contents Table of Contents Dante Software by Audinate Dante Controller Overview Dante Virtual Soundcard IntelliMix Operating Principles ® Application Examples Mixer Modes Dual Mixer Operation Creating a Link Group DFR and Audio Processing Integrating with Other Systems Networking Configuring for Use with a Choir Model Variations Internet Calling... -
Page 4: Overview
Overview The Shure SCM820 is an 8-channel digital automatic mixer designed for use in speech applications, including sound reinforcement, broadcasting and audio recording. It dramatically improves audio quality in any application where multiple microphones are required. The mixer uses IntelliMix technology to select ®... -
Page 5: Scm820 Description
SCM820 Description ④ ⑤ ⑨ ⑩ ⑫ ⑬ SCM820 IntelliMix ® HEADPHONE push to solo | hold to mute ③ ⑥ ⑦ ⑧ ⑪ ⑭ ⑮ Front Panel ⑩ Mix Status Indicator Mix Status ① Channel Mode Selection Mix is selected for adjustment and listening on the Green Press the button to select the function of the channel knobs and monitor headphone output. -
Page 6: Rear Panel
③ ④ ⑤ ⑥ ⑦ AUX IN mix a mix b ⑭ ⑮ direct out direct out direct out direct out direct out direct out direct out direct out ① ② ③ ④ ⑤ ⑥ ⑭ ⑮ ⑧⑩ ⑪ ⑰ ⑱... -
Page 7: Signal Path Diagram
Signal Path Diagram The following diagram shows the audio signal path and the routing options for several features (default configuration shown). Use the GUI to change the configuration. Mix A Mix B Input Meter Headphone Mute Digital Feedback Mode Mode Reducer Control CHANNEL... -
Page 8: Operating The Mixer
Operating the Mixer +0 dB gain low cut +0 dB gain hi shelf Front Panel Modes Monitoring low cut ch. meter hi shelf ch. meter -∞ dB +18 dB Headphone Output -∞ dB +18 dB Use the front panel headphone jack for monitoring IntelliMix®... -
Page 9: The Scm820 Graphical User Interface
Accessing the GUI System Requirements The Shure Web Server Discovery application finds all Shure devices on the network that feature a web-based GUI. Follow these steps to install • Windows: Windows XP (32 and 64 bit), Windows Vista and Windows 7 the software and access the SCM820 GUI: •... -
Page 10: Installation
Installation Power Furnished Accessories Connect the unit to AC power using the supplied IEC cable. Turn on the power switch. Hardware Kit (SCM820, SCM820-DAN) 90A20082 Hardware Kit (SCM820-DB25, 90BA8100 SCM820-DAN-DB25) Ethernet cable 95D15103 AUX IN mix a region dependent, Power Cable mix b direct out direct out... -
Page 11: Configuring The Inputs And Outputs
Configuring the Inputs and Outputs Unless where noted, configurations can be made from the hardware or from the GUI. Direct and Mix Outputs Inputs ① Select the Audio Source (GUI only) ⑤ Assign the Direct Outputs (GUI Only) • Analog (default): Audio is from a microphone or line-level audio source Assign the Direct Output for each channel from the Output tab of the GUI. -
Page 12: Setting Intellimix
The SCM820 features five mix modes: Classic, Extreme, Smooth, Custom or Manual. Classic Channel Gain in Classic Mixer Classic mode emulates the classic Shure SCM810 automixer (in its default settings). It is renowned for fast-acting, seamless channel gating and 1 Talker 2+ Talkers consistent perceived ambient sound levels. -
Page 13: Intellimix Parameters
IntelliMix Parameters Gating Style Off Attenuation Determines the way gain is applied to open channels. The amount of attenuation applied to closed channels. Full Last Mic Lock On Channels open at full gain (as adjusted by the NOMA factor). Avoids ambient dropout by keeping at least one channel open at all times. Relative The last channel opened remains open until another takes its place. -
Page 14: Networking
Data Types on the Network • Isolate Dante audio from the Shure Control network. The SCM820 transports two types of data over the network: Shure Control • Record audio to a computer without additional hardware. and Dante Audio and Controller. They are transported to/from the two •... - Page 15 Split Dante Audio and Controller Shure Control Isolate Dante and Shure Control networks Caution: Disconnect the equipment from the network prior to changing the network mode. This will avoid a network loop that will make the network unstable. secondary primary...
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Page 16: Dante Software By Audinate
Redundant and Split Networks Configuring a 100 Mbps Dante network The Primary and Secondary ports require dedicated network switches in Gigabit equipment is strongly recommended for Dante network. If this is not Redundant Audio and Split modes. possible, configure the 100 Mbps network with the following guidelines: •... -
Page 17: Application Examples
IntelliMix mode. • Ensure the switches have at least 300 Mbps of available bandwidth for each device. Devices in a Link Group use more network bandwidth than Shure ULX-D Digital Wireless System Stand Alone devices. Shure ULX-D Digital Wireless offers uncompromising audio clarity and ™... -
Page 18: Internet Calling
This section contains suggestions on the uses of the SCM820's logic capabilities. For additional suggestions and solutions to installation An alternative to creating a circuit is a Logic Controlled Relay, such as the problems, contact Shure's Systems Support. Radio Design Labs (RDL) ST-LCR1. Cough Button “Filibuster”... -
Page 19: Digital Feedback Reduction (Dfr)
Digital Feedback Reduction (DFR) DFR uses Shure’s patented Adaptive Notch Filter algorithm to discriminate between feedback and non-feedback sounds. It automatically detects feedback and deploys narrow-band notch filters at the feedback frequencies. DFR filters are narrow enough to prevent any coloration of the audio program. -
Page 20: Assigning Dfr
⑬ ⑭ Assigning DFR Two DFR blocks are assignable to any channel input or mix output. When using two or less microphones, assign the DFR to those channels to prevent feedback from routing to the mix bus. Additionally, if a microphone is designated for a chairperson or host, DFR should be applied to that channel to ensure that remains stable and does not feed back. -
Page 21: Gui Description
• IntelliMix: Select Mix mode and load/save Customize IntelliMix settings • DFR: Set up and monitor Shure Digital Feedback Reducer (DFR) for up to two channels • Output: Assign the direct output and manage Mix A and Mix B outputs •... -
Page 22: Input Tab
Input Tab ① ② ③ ⑮ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪ ⑫ ⑬ ⑰ ⑭ ⑯ 1) Channel Name 6) High Shelf Button 13) Mute Button Channel names can be customized with up For tempering sibilant speech or enhancing Mutes the audio for that channel. -
Page 23: Intellimix Tab
Intellimix Tab ④ ③ ① ② ⑤ ⑮ ⑥ ⑦ ⑧ ⑯ ⑨ ⑩ ⑰ ⑪ ⑱ ⑲ ⑫ ⑳ ⑬ ⑭ Mixer Settings 1) Mixer Type 7) Gating Logic The SCM820 can be set to operate as a single or dual mixer: When the mixer is set to Dual Mixer operation, this setting determines whether Mix A or Mix B controls the hardware functions (IntelliMix Direct •... - Page 24 ④ ③ ① ② ⑤ ⑮ ⑥ ⑦ ⑧ ⑯ ⑨ ⑩ ⑰ ⑪ ⑱ ⑲ ⑫ ⑳ ⑬ ⑭ 14) Mute Control 19) Hold Time Determines the location of a channel mute in the mixer’s signal path. In Full gating style, this determines how long a channel remains open after the signal level drops below the gate threshold.
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Page 25: Digital Feedback Reduction (Dfr) Tab
Digital Feedback Reduction (DFR) Tab ⑭ ① ② ③ ⑩ ⑪ ⑫ ⑥ ⑦ ⑧ ⑨ ④ ⑤ ⑮ ⑬ 1) Enable/Disable Button 7) Frequency 12) Auto Clear Click this button to enable or disable the This indicates the frequency of the selected This feature automatically clears Unlocked DFR notch filtering. -
Page 26: Output Tab
Output Tab ① ⑥ ⑦ ② ⑧ ③ ⑨ ④ ⑩ ⑤ ⑪ ⑫ ⑭ ⑬ ⑮ ⑯ ⑰ Direct Output 9) Lim (Limiter) Indicator Illuminates to indicate that the signal has exceed the limiter threshold, 1) Channel Name engaging the limiter. Displays the channel name as defined in the Inputs Tab. -
Page 27: Link Group Tab
Link Group Tab SCM820 SCM820-3 Auto ⑤ SCM820-1 SCM820-4 Group 1 SCM820-2 SCM820-5 SCM820 ⑥ SCM820-3 SCM820-6 SCM820-1 SCM820-4 SCM820-5 ③ ② SCM820-6 ① ④ 1) All Devices List 4) New Group Button Master list of all available SCM820 Dante units on the network. Creates a new Link Group to the list. -
Page 28: Preferences Tab
Determines if the channel meters are before (Pre-Fader) or after (Post- Fader) the channel’s volume knob/fader. 13) Configuration Determines the routing of Shure Control and Dante Audio & Controller 7) Meter Type data from the two network ports. See Port Configuration for details. - Page 29 The mixer will reboot in Standalone mode. See Latency section for more details. 24) Register This Product Links to Shure website for product registration. Software 25) Event Log Link Links to the device’s Event Log, which opens in a new browser tab or 18) Default Language Selection window.
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Page 30: Log On Page
The log collects and time-stamps up to 1,000 activity entries for the mixer. The Event Log is a reference tool for troubleshooting when calling Shure Systems Support or Service Department. The log categorizes entries into Events, Warnings and Errors: •... -
Page 31: Troubleshooting
Solution • Ensure the mixer is powered • Properly connect the Primary port to the computer's network Device not appearing in Shure Web Device • Turn off other network interfaces not used to connect to the mixer Discovery application (including WiFi) Can't Connect to the GUI •... -
Page 32: Event Log
• Errors: A problem has occurred that could inhibit the mixer's functionality. 5. If the error message persists, contact a Shure support representative for This corresponds to error messages that flash on the front-panel LEDs. your region. -
Page 33: Specifications
Specifications Digital Signal Processing Audio Frequency Response 20 Hz to 20 kHz (±1 dB) AD/DA Converter Dynamic Range 24-bit, 48 kHz, 113 dB dynamic range typical 20 Hz to 20 kHz, A-weighted, typical Internal Processing Analog-to-Analog 110 dB 32-bit Analog-to-Dante, Dante-to-Analog 113 dB Latency From channel input to mix output, Estimated Nominal, ±0.1 ms... -
Page 34: Ip Ports And Protocols
Open 8181* Flash Required for web GUI Open 8427 Multcast SLP Required for inter-device communication Open 64000 Telnet Required for Shure firmware update Open Dante Audio & Controller Port TCP/UDP Protocol Description SNMP Used by Dante [319-320]* Dante clocking 4321, 14336-14600... -
Page 35: Connector Diagrams
Connector Diagrams +48V Impedance Balanced Output Fixed Gain Out-Z Out-Z Input Trim Mic- -18 dBFS = +4 dBu +4 dBu = -18 dBFS OUTPUT PAD Fixed Gain Fixed Out-Z Gain Cross-Coupled Output Fixed -20dB -46dB Gain +4 dBu = -18 dBFS Fixed Gain -18 dBFS = +4 dBu...