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SMP Brochure Case Study University of Auckland SMP Series 

The SMP 352 is a high performance recording and streaming processor for capturing and distributing AV sources and presentations as recorded media or live streaming. It can create independent recordings from two different sources, and incorporates Extron’s FlexOS®, a flexible platform for automating system operation. The SMP 352 accepts HDMI, component, composite, and optional 3G-SDI signals and applies two-window processing to selected sources. It can record and stream simultaneously and can stream at two different resolutions and bit rates concurrently using a range of transport protocols and session management options. With no recurring licensing fees and comprehensive control and configuration features, the SMP 352 is a cost-effective, integration-friendly solution for delivering presentations to a larger audience.

Case Studies
Extron AV at Viettel Headquarters Enables Productive Meetings & Collaboration for Vietnam Telecom Provider

Viettel Group is the largest telecommunication service provider in Southeast Asia and among the top 30 most valuable telecom companies in the world. It has 50,000 employees worldwide and serves 110 million subscribers. The Vietnam Ministry of Defense operates the company as a state-owned enterprise. Read more

Extron XTP System Helps Houston-Lantrip Center Connect with Special Needs Learners

The Houston-Lantrip Center for Literacy and Learning, HLC, provides support for individuals with dyslexia and autism disorders. HLC recently opened its newly constructed facility on the campus of Hardin-Simmons University in Abilene, Texas. HLC helps educators and parents understand dyslexia and autism spectrum disorders... Read more


  • Process two high resolution AV sources from up to five available input signals — Size and position two AV source signals in layouts that maximize the viewing experience.
  • Record and stream simultaneously — Document presentations, view confidence streaming, or extend live media to overflow destinations without the need for a computer or additional equipment.
  • High quality scaling with flexible two-window management — Display one or two high resolution sources in various window arrangements, including picture-in-picture and picture-by-picture arrangements for optimal interpretation.
  • Produce MP4 media or M4A audio files that are compatible with virtually any media player — Use recordings produced by the SMP 352 directly with any software media player, computer, or mobile device.
  • Stream concurrently at two resolutions and bit rates from the same source — High resolutions and high bit rates deliver superior quality images for overflow applications, and lower bit rates and resolutions are more efficient for streaming distribution and confidence viewing applications.
  • Dual channel recording and streaming with confidence stream — The SMP 352 can simultaneously record and stream from two different video sources with independent stream settings for each channel. A confidence stream is also available for remote preview of recorded or streamed content.
  • Flexible dual channel layout for confidence output — Choose between ten different layouts for confidence stream and local HDMI confidence output to preview both video channels in different PiP or Side by Side modes.
  • Internal Solid State Storage — Save recorded data to reliable, internal storage, before transferring it to external destinations. Capacity of 480 GB (440 GB for recording files). Up to 150 hours can be saved to the 480 GB version, encoded at 10 Mbps.
  • Audio mixing and advanced audio DSP — Advanced audio DSP features offer control over audio levels, filtering, and dynamics for a quality audio experience without requiring the use of external mixing and DSP equipment.
  • RTMP and RTMPS streaming protocols support popular third party hosting services — Supports RTMP push streaming with stream name or key, and user authentication for services like YouTube Live, Wowza, Twitch, IBM Cloud, and more. Supports streaming to Facebook Live using the RTMPS streaming protocol.
  • New Toolbelt Integration — Manage SMP 300 Series information, firmware, and users with Toolbelt v2.10.0 or newer.
  • New 802.1X Authentication — SMP 300 Series supports 802.1X authentication. Please refer to Manual - Technical Application Note for 802.1X Network Security Features
  • Flexible I/O ports for advanced AV system management — Install Extron FlexOS® applications onto the SMP 352 that interface with control ports and automate system operation.
  • License-free operation contributes to a low cost of ownership — With no required licensing or recurring support fees, the SMP 352 is a cost-effective solution for AV streaming and recording.
  • Save recordings to internal solid state drive, external USB storage, or a defined network storage directory — Recordings can be saved to pre-defined locations most convenient to users.
  • Chapter and event marking with thumbnails — Chapters or events can be marked, and JPEG image thumbnails in user defined resolutions are produced to promote efficient searching and scanning.
  • Record and stream at resolutions from 512x288 to 1080p/30 — Deliver superior quality video resolutions based on content or viewing requirements.
  • HDMI, component, composite, and optional 3G-SDI input — Provides compatibility with common AV signal formats at resolutions up to 1920x1200 including 1080p/60. The SMP 352 3G-SDI model offers an additional 3G-SDI input connection.
  • Easy to configure and operate from the front panel or external control system — Ensure that presentations will be streamed and recorded and valuable information will be documented and repurposed.
  • Define specific storage destinations for recorded data — Configure the SMP 352 to save recordings to specific storage directories based on the user environment or application requirements.
  • Recording folder playback from SMD decoders — Recording folders on SMP 352 can now be mounted as network shares on SMD decoders for immediate playback of recordings.
  • HDMI-embedded stereo audio or analog stereo input and output signal support — Digital and analog audio signals are supported on the input channels and the output channel.
  • SDI audio de-embedding — Audio from an SDI source can be decoded and included in the audio mix along with either HDMI or analog sources.
  • Supports the latest SMBv2 and SMBv3 protocols for secure file sharing in Windows environments
  • Record audio as separate m4a file — In addition to storing video with included audio as m4p or m4v, the SMP 352 can also record and store audio as a separate m4a file.
  • Direct compatibility with hosted video platforms — Integrate publishing of recorded media directly to third party platforms such as Panopto, Kaltura, and Opencast.
  • USB remote control port — Configure communication settings of the SMP processor using a keyboard and mouse viewing the embedded webpage. Connect the optional RCP 101 Series remote control panel for extended front panel operation and convenient thumb drive access, or the vRCP FlexOS App to remotely control the SMP processor on any device, using any browser.
  • New Auto-Reconnect for RTMP Streams — When the “Auto-Reconnect stream when disconnected” option is enabled, the SMP attempts to reconnect to the selected RTMP destination if the initial connection cannot be established. The option can be found in the Configuration → Encoding & Layouts → Encoding Presets.
  • New File Transfer Schedule — Schedule recording files for transfer using the option found in Scheduled Events → Publishing Settings → File Transfer Schedule.
  • LinkLicense for Enhanced Panopto Features — This annual support license brings enhanced integration with the Panopto enterprise video platform to enable the SMP 352 to receive recording schedules from the Panopto video platform as well as streaming live video using RTMP and RTMPS to Panopto. Basic ad-hoc recording and publishing to Panopto and automating the system operation does not require a LinkLicense, but does require installation of the complimentary FlexOS® application framework.
  • LinkLicense® for Enhanced Kaltura Features — This annual support license enables enhanced integration with the Kaltura hosted video platform including scheduling, RTMP, and RTMPS streaming.
  • LinkLicense for Horizontal Video Mirroring Upgrade — Streamlines recording by automatically flipping video horizontally to support lightboard or other applications that require reversal of the video image.
  • iCalendar FlexOS App for ingesting iCalendar schedules — The iCalendar FlexOS App supports manual .ics file ingest and periodic schedule ingest from Outlook, Google Calendar and other scheduling services.
  • Schedule recording and streaming — Easily import and create recording schedules from Microsoft Exchange Server or using the iCalendar format.
  • RS-232, Ethernet, and digital I/O control ports — Interface with control systems, sensors, or external devices used in the AV presentation environment.
  • Standards-based H.264 / MPEG 4 AVC video compression — The SMP 352 supports use of the Baseline, Main, or High Profiles at Levels 4.x, or 3.x providing the ability to optimize video coding for use with various types of applications and decoding devices.
  • Channel A buffered input loop-through — Channel A input connectors include a buffered loop-through, for easy integration into new or legacy systems without the need for additional AV equipment such as distribution amplifiers.
  • Auto Image™ setup — When activated, the unit automatically analyzes the incoming video signal and then automatically adjusts sizing, centering, and filtering to optimize image quality. This can save time and effort in fine tuning displayed images.
  • Layout presets simplify control — The SMP 352 provides 16 standard or customizable presets that specify the size and positioning of AV sources and metadata, simplifying management and selection of layouts from the front panel or an external control system.
  • Streaming presets — Thirty-two streaming presets combining stream destination, protocols, and parameters are available for quick and easy setup, and switching between live streams.
  • Encoding presets for quick recall of specific compression settings — The SMP 352 provides 16 standard or customizable presets for saving specific encoding settings such as H.264 profile, resolution, GOP, and bit rate session management configurations. Users can quickly switch between these archive and confidence encoder presets to support different applications.
  • Pull streaming transport protocols — RTP/RTSP, RTSP interleaved, and HTTP tunneled streaming transport protocols may be applied, based on various network conditions or to aid in firewall navigation.
  • Push streaming transport protocols — Native RTP, RTMP, RTMPS, or MPEG 2 Transport Streams - TS, may be applied in unicast or multicast streaming applications. TS may be transported using UDP or RTP based on network conditions.
  • Simultaneous unicast and multicast streaming per encode — The SMP 352 supports multiple concurrent stream modes per channel allowing simultaneous unicast and multicast RTSP pull streaming for each encode.
  • Session Announcement Protocol - SAP and Session Description Protocol - SDP — SAP and SDP protocols simplify identification of AV source streams in unicast or multicast push streaming applications.
  • Adjustable recording and streaming bit rates — Select video bit rates from 200 Kbps to 10 Mbps for video and audio bit rates from 16 Kbps to 384 Kbps based on the viewing application, storage, streaming, or network conditions.
  • Clean switching — Switching has a clean transition between sources. Distractions such as visual jumps, glitches, and distortion commonly experienced when switching between computer and video sources will not be experienced when using the SMP 352.
  • Recording metadata — Metadata can be assigned to make indexing and searching of recordings simple including: Title, Creator, Subject, Description, Publisher, Contributor, and Date.
  • Metadata text overlay — Data concerning the recording can be presented and clearly identified on recording layouts with AV sources and a background image.
  • Uploadable background image files — Upload PNG image files at resolutions up to 1920x1080 to identify organizational or event information.
  • On screen display information — Present device information and status on source images to aid in troubleshooting and fault finding activities.
  • Onscreen display video time reference — Text displaying a time and date reference can be presented within the onscreen display in the top left corner of the output signal.
  • Extended time recording — Recordings that would produce a media file size greater than 4 GB are bundled into a recording package of sequential MP4 files.
  • User configurable recording file size — Split recordings into specified files sizes.
  • Automatic file management for internal storage — Storage space is automatically created for new recordings when additional space is required. Files are deleted on a first-in, first-out basis. Important recordings can be locked and retained indefinitely until they are manually deleted.
  • System workflow alarms — Notify monitoring systems or support staff if disk space is low, encrypted signals are detected, AV signal errors occur, or other error conditions exist.
  • Alarm reporting — Automate communication with monitoring systems or support staff using email, SNMP traps, or Simple Mail Transfer Protocol - SMTP messages.
  • "Publish Failure" Alarm — There is a new alarm notification for a publishing failure for transferring recordings. The new alarm can be found in the Configuration → Alarms and Traps → Alarm Message List.
  • View Temperature SIS — SIS command to view system temperature. The new command information can be found in the SMP User Guide section Remote Communication and Control.
  • AAC audio encoding — Standards-based audio compression is used to provide compatibility with many devices. The bit rate can be adapted to different application requirements.
  • Video encoding quality controls including video resolution, video bit rate, frame rate, constant or variable bit rate control, GOP length, and audio bit rate — Several user controls are available to adjust encoding quality.
  • Auto Input Memory — When activated, the SMP 352 automatically stores size, position, and picture settings based on the incoming signal. When the same signal is detected again, these image settings are automatically recalled from memory.
  • Automatically manage EDID communication between connected devices with EDID Minder® — Automatically manage EDID communications between devices EDID Minder, ensuring use of optimal signal formats.
  • Audio input gain and attenuation — Gain or attenuation can be adjusted for each input signal to eliminate noticeable differences when switching between sources, or adjusting audio levels for the output stream.
  • Picture controls for brightness, contrast, signal sampling, and overscan — Sixteen user memory presets are available for each input to store all image settings.
  • Aspect ratio control — The aspect ratio of a source window can be controlled by selecting a FILL mode, which provides a full screen output, FOLLOW mode, which preserves the aspect ratio, or FIT mode, which maintains image uniformity and zooms into the source.
  • HDCP authentication and signal presence confirmation — Provide real-time verification of HDCP status for each digital video input and output signal. This allows for easy signal and HDCP verification through RS-232 or Ethernet, providing valuable feedback to a system operator or helpdesk support staff.
  • HDCP visual confirmation — When HDCP‑encrypted content is transmitted to a non‑HDCP compliant display, a full‑screen green signal is sent to the display for immediate visual confirmation that protected content cannot be viewed on that display.
  • Quad standard video decoding — A digital, five-line adaptive comb filter decodes NTSC 3.58, NTSC 4.43, PAL, and SECAM for integration into systems worldwide.
  • Internal test patterns for setup — The SMP 352 offers test patterns as well as on-screen display - OSD data overlay including timestamp, number of connected users, CPU usage, network status, disk free file space, audio level, and system information to aid in calibration and setup.
  • Front panel lockout — This feature locks out either all front panel functions, Menu functions only, or all but recording transport controls. All functions are available through Ethernet, USB, and RS-232 control.
  • Ethernet monitoring and control — The SMP 352 is controllable over Ethernet, supporting configuration and real-time management from a control system.
  • Embedded Web interface — Intuitive Web interface with an embedded video window for viewing the live stream, as well as source input and encoding adjustments.
  • RS-232 control port — Enable the use of serial commands for integration into a control system. Extron products use the SIS™ - Simple Instruction Set command protocol, a set of basic ASCII commands that allow for quick and easy programming.
  • USB keyboard and mouse ports — Configure communication settings of the SMP 352 and system settings using a keyboard and mouse viewing the embedded webpage from the HDMI output connection.
  • LockIt® HDMI cable lacing brackets included
  • Rack-mountable 1U, full rack width metal enclosure
  • Internal Extron Everlast™ power supply — Provides worldwide power compatibility, with high‑demonstrated reliability and low power consumption for reduced operating cost
  • Extron Everlast Power Supply is covered by a 7‑year parts and labor warranty

MP4 recordings can be saved to internal solid state storage, a USB storage device, or a defined network storage directory. USB storage devices connect easily to the SMP 352 from the front or rear panel. The approximate capacity in hours for a 32 GB thumb drive, the SMP 352 internal solid state storage and a 1 TB network drive is presented in the table below. Hours of storage capacity are calculated for video bit rates from 1 Mbps to 10 Mbps plus 192 kbps for audio.

Approximate Storage Capacity in Hours Based on Video Bit Rate and Storage Device
Video Recording Bit Rate32 GB USB Thumb DriveSMP 352 - 400 GB SSD1 TB Network Storage
10 Mbps780220
5 Mbps15160450
2.5 Mbps27320850
1 Mbps648002,000
Storage capacity estimate is calculated for a single stream / recording using the video recording bit rate plus 192 kpbs for audio.



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