SMP 352 New

Dual Recording H.264 Streaming Media Processor
Key Features
  • Process two high resolution AV sources from up to five available input signals
  • Record and stream simultaneously
  • High quality scaling with flexible two-window management
  • Produce MP4 media or M4A audio files that are compatible with virtually any media player
  • Stream concurrently at two resolutions and bit rates from the same source
  • Dual channel recording and streaming with confidence stream
The Extron SMP 352
Model Version Description Part #
 SMP 352 - 80 GB SSD Dual Recording – 80 GB SSD 60-1634-01
 SMP 352 - 400 GB SSD Dual Recording – 400 GB SSD 60-1634-11
 SMP 352 3G-SDI - 400 GB SSD Dual Recording w/3G-SDI – 400 GB SSD 60-1634-12
 LinkLicense SMP Enhanced Panopto Features Upgrade 79-2562-01
 LinkLicense SMP Enhanced Kaltura Features Upgrade 79-2548-01
 LinkLicense SMP Enhanced YuJa Features Upgrade 79-2566-01
 LinkLicense SMP 300 Series Horizontal Video Mirroring Upgrade 79-2553-01

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.

The SMP 352 dual recording feature creates independent recordings from two different video sources with independent archive stream settings for each channel. Users can choose to create a single layout for simultaneous recording and streaming, or create synchronized recordings and streams of two video channels with the dual recording feature. A confidence stream provides a composite of two video sources to monitor both channels from a single stream. The SMP 352 also has advanced audio DSP features for level control, filtering, and dynamics, as well as streaming presets that increase functionality and provide a simplified workflow.

Flexible Signal Support

The SMP 352 processes two high resolution AV sources from up to five available connections. One of two HDMI signals can be selected from Channel A along with analog or HDMI-embedded stereo audio. Channel A also provides a loop through HDMI and audio connection, which can be passed directly to a presentation display. Channel B inputs support common camera formats including composite, component HD, and HDMI. A second model, the SMP 352 3G‑SDI, accepts serial digital video signals supplied by cameras and other professional video sources. The Channel A and B input connections both support computer-video formats from 640x480 to 1920x1200, and video formats from 480p to 1080p/60. They can be switched live during a presentation.

Effective Multi-Window Processing

The SMP 352 offers highly flexible source presentation options. The Channel A and B input signals can be presented on the output individually at full screen or together in any two-window display arrangement including side-by-side. Up to sixteen customized window presets can be prepared, combining the Channel A and B inputs with a PNG background image and metadata. These flexible, multi-source processing features makes it easy to recreate the live presentation experience. They also provide viewers with greater insight into the event’s context, facilitating interpretation and retention of the information presented.

AV Recording with Enhanced Data

The SMP 352 produces an MP4 (M4V) container format, which is compatible with virtually any media player. It records at 480p, 720p, or 1080p resolutions, supporting a variety of quality, storage, and playback requirements. Recordings can include metadata with information such as: Title, Creator, Subject, Description, Publisher, Contributor, and Date, which makes searching, indexing, and managing multiple recordings more efficient. Set chapter marks during recording sessions for highly efficient searching and scanning during file playback. JPEG thumbnail images are captured periodically and for specially marked events. Thumbnail image size is selectable in order to meet the needs of the recording environment.

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 Rate 32 GB USB Thumb Drive SMP 352 - 400 GB SSD 1 TB Network Storage
10 Mbps 7 80 220
5 Mbps 15 160 450
2.5 Mbps 27 320 850
1 Mbps 64 800 2,000
Storage capacity estimate is calculated for a single stream / recording using the video recording bit rate plus 192 kpbs for audio.

Extensive Streaming Capabilities

The SMP 352 offers extensive streaming capabilities. It can stream concurrently with a recording session at two different resolutions and bit rates from 512x288 to 1080p/30. High resolution, high bit rates can be used to deliver superior quality, presenting video on large screens in overflow applications, while a lower bit rate and resolution can be used for streaming distribution or confidence viewing applications. Streaming bit rates can range from 200 kbps to 10 Mbps for video and 16 kbps to 384 kbps for audio. Both push and pull streaming sessions are supported, offering a range of streaming transport protocols and session management methods. This range of capabilities provides the flexibility to stream from the SMP 352 to a variety of devices in different system configurations and network conditions.

Signal Processing Simplifies Source Management

Like many other Extron AV products, the SMP 352 offers comprehensive digital and analog signal processing features that make interfacing presentation sources easy. EDID Minder® automatically manages EDID communications to ensure sources power up properly and a reliable output signal is provided. Intelligent HDCP-compliant signal management passes encrypted signals to HDCP-compliant connected displays, while presenting a green screen with HDCP message on encoded media sent to non-compliant displays. All signal switching produces clean transitions, with no distracting visual jumps, glitches, or distortion that would distract from recordings and live streaming. Auto-Image™ automatically adjusts source sizing, centering, and filtering and Auto Input Memory saves the size, position, and picture settings of incoming signals, ensuring that sources present properly. Comprehensive picture controls and aspect ratio controls produce quality and accuracy for every application.

Enhanced Panopto Features with LinkLicense

The Enhanced Panopto Features LinkLicense® is an annual support license that enables enhanced integration with the Panopto enterprise video platform, bringing new capabilities to enable the SMP 352 to receive recording schedules from the Panopto video platform as well as streaming live video to Panopto for live event broadcast and other applications. This upgrade will require the LinkLicense for the enhanced scheduling and live streaming features as well as installation of the complimentary FlexOS® application framework for automating the system operation. Installation of the complimentary FlexOS application framework is required for basic ad-hoc recording and publishing to Panopto, as well as for automating system operation. Panopto FlexOS App v1.04 adds support for publishing Virtual Input recordings to Panopto, and support for streaming Virtual Input (enabled by Enhanced Panopto Features LinkLicense) to Panopto.

Enhanced Kaltura Features with LinkLicense

The Enhanced Kaltura Features LinkLicense is an annual support license that enables enhanced integration with the Kaltura hosted video platform for the SMP 352. The LinkLicense adds enhanced features to the SMP 352 enabling users to schedule recordings from Kaltura and stream live media to Kaltura using RTMP and RTMPS. Updated support in Kaltura FlexOS App v1.03 adds support for Kaltura Live Dashboard and Virtual Input file publish to Kaltura.

Basic publishing of recordings to Kaltura does not require a LinkLicense.

Enhanced YuJa Features with LinkLicense

The Enhanced YuJa Features LinkLicense is an annual license that enables enhanced integration with the YuJa video platform for the SMP 300 Series Streaming Media Processors. Users can schedule recordings for automated content publishing as well as stream live video to YuJa using RTMP for up to 3 streams, which includes virtual inputs such as IP cameras and other encoded sources. Installation of the complimentary FlexOS application framework is required for basic ad-hoc recording and publishing to YuJa, as well as for automating system operation for enhanced scheduling and live streaming features.

Basic publishing of recordings to YuJa does not require a LinkLicense.

Add Horizontal Video Mirroring Capabilities with LinkLicense

The Horizontal Video Mirroring LinkLicense adds powerful features to SMP 300 Series Streaming Media Processors. The expanded functionality enhances and streamlines the recording of video and audio presentations. Horizontal Video Mirroring flips video horizontally to support lightboard or other applications that require reversal of the video image due to the presenter facing the camera while writing on a transparent surface. This eliminates time and resources spent manually flipping the video in post-production. Add an Extron Pro Series Control Processor and a TouchLink Pro Touchpanel for a user-friendly, integrated recording solution.

Highly Adaptable FlexOS Platform

FlexOS is Extron’s flexible, embedded operating system that manages and controls functional systems within the SMP 352. FlexOS makes the SMP 352 easily-adaptable to new requirements over time for a multitude of streaming, recording, processing, control, and presentation applications. A number of Extron applications are available for uploading to the SMP 352 that help automate various system operations via the control ports.

Flexible System Control Options

Many different control capabilities are available from the SMP 352. The front panel buttons and LCD display provide a simple interface to manage, configure, monitor, and control the unit for a wide variety of applications. The SMP 352 also features an RS‑232 port that interfaces with serial devices and control systems and the Ethernet port provides an additional control interface. Using Extron FlexOS programs installed on the SMP 352, specific presentation, recording, and streaming scenarios can be automated using four digital I/O ports.

A USB control port is available on the front panel of the SMP 352 to support direct configuration from a PC. Alternatively, two USB ports on the rear of the unit are available for connection to a keyboard and mouse, to serve as the interface for a web browser that operates from the FlexOS platform. The browser can be viewed from the SMP 352 HDMI output connection and serves as a convenient method to access the SMP 352 embedded webpage.

Recording and streaming presets simplify control and management of the SMP 352. Source window layouts and encoding configurations both incorporate many parameter settings that would be challenging to manage independently. Up to sixteen different presets can be saved for source window layouts and sixteen presets can be saved for encoding configurations. They can be recalled easily from the front panel, embedded webpage, or an external control system when the SMP 352 is adapted to support different application requirements.

Optional Remote Control - RCP 101 Series and vRCP

Extron RCP 101 Series remote control panel can extend both front panel control as well as USB connectivity for thumb drive recording media. Available in decorator-style, MK, and EU versions; the EU version is compatible with Flex55 enclosures or EU junction boxes. The included USB and power cables provide up to 15 feet (4.5 meters) of extension to the RCP 101 Series Remote Control Panel. Alternately, a USB extension such as Extron’s USB Extender Plus series can extend signals up to 330 feet (100 meters).

The vRCP is a virtual remote control panel FlexOS App offering Extron SMP customers a free option to remotely control the SMP Series products on any device, using any browser, without needing to use a physical control interface. A simple and intuitive user interface provides customers an easy way to manage starting, stopping, pausing, and marking an SMP recording from anywhere in the room. Additionally, the vRCP can function in conjunction with an RCP 101 Series panel.

vRCP Features

  • Remotely control SMP products using any mobile device browser, without an RCP, or in conjunction with an RCP
  • Status indicator displays active alarm name, so the user can view the active alarm that relates to the recording on the mobile page. Alarms include:
    • Video Loss
    • HDCP Video
    • Audio Loss
    • Record Halt
    • Disk Space
  • Display record elapsed time to show how long the recording has run
  • Display record remaining time to show the remaining time before a recording will end, determined by either the unused storage space or the next scheduled recording start time
  • Display SMP recording status including stopped, setup (preparing for a new recording), recording, or paused
  • Display SMP device name and location on a mobile browser page to ensure the correct SMP unit when managing multiple SMP devices

Powerful Tools for Scheduling, Monitoring, and Management

Recording schedules can be automatically updated by configuring the SMP 352 to integrate with Microsoft Exchange or periodically upload a centrally managed iCalendar file. Simple Network Management Protocol - SNMP traps, email and Simple Mail Transfer Protocol - SMTP can be used to deliver messages to AV and IT support staff or monitoring systems when signal errors or encrypted sources are detected and when storage is near capacity, allowing proactive service to be initiated. Operational system data is logged continually, identifying recording sessions, storage directory use, file names, metadata, and storage capacity. This information provides valuable data for evaluating usage patterns and operating concerns.

Content Management and Publishing Options

The SMP 352 produces MP4 (M4V) media files with chapter marks, JPEG thumbnail images, and metadata supporting a data rich playback experience. It can be configured to integrate directly with the Opencast lecture capture AV content management system, commonly used by many higher education institutions or the Kaltura Hosted Video Platform. SMP 352 AV recordings can also be manually uploaded to third party content management systems such as iTunes-U, Blackboard LMS, SharePoint, CaptionSync, YouTube, Moodle, and RSS feeds.

Quality Multi-Source Audio Processing

The SMP 352 provides mixing and basic audio DSP features. The SMP 352 mixes the Channel A and B input signals based on the selected source layout and input configurations. Audio output signals are adjusted automatically during source switches to eliminate potential clicks, pops, or undesired effects, producing a quality audio experience without the need for external processing equipment.


The SMP 352 is ideal for use in virtually any professional environment where AV sources can be streamed live or recorded for future reference, especially when combining multiple AV sources will enhance the message. Recording and streaming AV presentations allows an organization to communicate and train employees and students that cannot be present at an event. Event recording provides everyone with the opportunity to review and gain insight into the live experience. The SMP 352 can be adapted to many applications, documenting virtually any meeting, conference, or activity that uses an AV source as a reference. The SMP 352 is ideal for use in corporate, education, government, healthcare, courtroom, house of worship, and rental and staging applications.