Roland SR-20HD Direct Streaming AV Mixer

The compact SR-20HD Direct Streaming AV Mixer makes it easy to produce content and encode livestreams for your business or organization—without the need for a computer. Just connect your AV devices and securely stream directly to multiple platforms over LAN. You can also record directly to SDXC media for archiving and later distribution. Everything you need is integrated into a single portable unit that anyone can use with minimal training. When consistency, dependability, and network security are top priorities, the SR-20HD delivers professional results every time.

Features:

• Enterprise streaming solution for direct livestreaming without a PC
• Built-in encoders for transmitting two simultaneous livestreams up to 1080p/60 FPS
• Adaptive Bitrate function reduces freezing and dropouts due to bandwidth issues
• Safety Delay function to keep accidental moments from being broadcast
• Scene function for executing multiple tasks with a single touch
• Record streams directly to an SDXC card for archiving, editing, and distribution
• Ease your workflow with Video Auto Switching and Auto Mixing functions
• Play sound effects, still images, and video sources from an SDXC card to enhance your livestreams
• LCD monitor for checking video I/O and delivery status in real time
• Three video inputs: two HDMI and one USB video class
• Two HDMI outputs: Main and Preview
• High-quality audio mixer with eight input channels for mics and line-level devices

Specification

• Video

  • Video Processing

    • 4:2:2 (Y/Pb/Pr), 8-bit

  • Number of Video Channels

    • 2 channels

• Input Formats

  • HDMI IN 1–2

    • 720/59.94p

    • 720/50p

    • 1080/59.94i

    • 1080/50i

    • 1080/59.94p

    • 1080/50p

    • SVGA: 800 × 600/60 Hz

    • XGA: 1024 × 768/60 Hz

    • WXGA: 1280 × 800/60 Hz

    • FWXGA: 1366 × 768/60 Hz

    • SXGA: 1280 × 1024/60 Hz

    • SXGA+: 1400 × 1050/60 Hz

    • UXGA: 1600 × 1200/60 Hz

    • Full HD: 1920 × 1080/60 Hz

    • WUXGA: 1920 × 1200/60 Hz

  • Refresh rate is the maximum value for each resolution

  • Conforms to CEA-861-E and VESA DMT Version 1.0 Revision 11

  • 1920 × 1200/60 Hz: Reduced blanking

  • Interlaced input video is converted to progressive video internally

  • HDCP not supported

• Output Formats

  • HDMI OUT MAIN, PVW

    • 1080/59.94p

    • 1080/50p

  • Video frame rate selectable in the SYSTEM menu:

    • 59.94 Hz

    • 50 Hz

  • HDCP not supported

• Stream and Video Recorder

  • Protocols

    • RTMP

    • RTMPS

    • SRT (Caller, Listener)

  • Container

    • FLV (RTMP, RTMPS)

    • MPEG2-TS (SRT)

  • Recording File Format

    • MP4

  • Video Codec

    • H.264

    • Profile: High/Main/Baseline

    • 720/59.94p

    • 720/50p

    • 1080/59.94p

    • 1080/50p

    • Target bitrate: up to 20,000 kbps

  • Audio Codec

    • AAC-LC

    • 16 bits

    • 48 kHz

    • Stereo

    • Target bitrate: up to 384 kbps

  • Stream and Video Recorder functions are unavailable in SRT In only mode

• Audio Recorder

  • File format: WAV

  • Codec: Linear PCM

  • 16 bits

  • 48 kHz

  • Stereo

  • Audio Recorder function unavailable in SRT In only mode

• Video Player

  • File format: MP4

  • Video

    • H.264

    • Maximum: 1080/29.97p, progressive

    • Average bitrate: 10,000 kbps or less

  • Audio

    • AAC-LC

    • 16 bits

    • 48 kHz

    • Stereo

  • Video Player function unavailable in:

    • High Quality mode

    • SRT In only mode

• SRT In

  • Protocols

    • SRT (Caller, Listener)

  • Container

    • MPEG2-TS

  • Video

    • H.264

    • Maximum: 1080/60p, progressive

    • Average bitrate: 20,000 kbps or less

  • Audio

    • AAC-LC

    • 16 bits

    • 48 kHz

    • Stereo

  • SRT In unavailable in High Quality mode

  • In Standard mode:

    • Maximum: 1080/30p

    • Average bitrate: 10,000 kbps or less

• USB Video or Audio

  • USB Video

    • Maximum: 720p29.97

    • Uncompressed (YUY2)

  • USB Audio

    • Linear PCM

    • 16 bits

    • 48 kHz

    • Stereo

  • Either USB video or USB audio can be used

  • USB VIDEO IN Mode selectable in SYSTEM menu:

    • Video Only

    • Audio Only

  • USB STREAM output supported from:

    • VR-4HD

    • UVC-01

  • USB Video and Audio unavailable in:

    • High Quality mode

    • SRT In only mode

• Import Still Image

  • PNG (.png)

    • Maximum: 1920 × 1080 pixels

    • 24-bit color

    • Alpha channel not supported

  • JPEG (.jpg, .jpeg)

    • Maximum: 1920 × 1080 pixels

    • 24-bit color

• Save Still Image

  • JPEG (.jpg)

  • 1920 × 1080 pixels

  • 24-bit color

• Video Effects

  • Scene

    • Picture in Picture

    • Split

    • Picture by Picture

  • Transition

    • Black fade

    • Mix fade

  • Key Composition

    • Luminance key

    • Chroma key

  • Other

    • Output fade

    • Test pattern output

    • Stream Delay

• Audio

  • Audio Processing

    • 24 bits, 48 kHz

  • Number of Audio Channels

    • 15 channels

  • Audio Formats

    • HDMI IN/OUT: Linear PCM, 24 bits, 48 kHz, stereo

  • Audio Effects

    • Delay

    • High Pass Filter

    • Gate

    • Compressor

    • Equalizer

    • Limiter

    • Test tone output

  • Audio Player

    • File format: WAV

    • Linear PCM

    • 16 bits

    • 48 kHz / 44.1 kHz

    • Stereo

• Common Section

  • Recording Media

    • SDXC/SDHC card (sold separately)

    • SDXC card required for video recording

    • An SD card must always be installed when using the SR-20HD

  • Other Functions

    • Panel lock function

    • EDID emulator

• Connectors

  • Input Connectors

    • HDMI IN 1–2: HDMI Type A, multi-format supported

    • AUDIO IN 1–4: Combo type

      • XLR: Balanced, phantom power (DC 48 V, 10 mA)

      • XLR pinout: 1 GND, 2 HOT, 3 COLD

      • 1/4-inch TRS phone: Balanced

  • Output Connectors

    • HDMI OUT MAIN, PVW: HDMI Type A

    • LINE OUT: RCA phono type

    • PHONES: Stereo miniature phone type

  • Input/Output Connector

    • HEADSET: Stereo miniature phone type

    • 3.5 mm (1/8-inch)

    • TRRS 4-pole

    • CTIA

  • Other Connectors

    • USB VIDEO IN: USB Type A (USB 3.0)

    • USB CONTROL: USB Type A (USB 2.0)

    • LAN (DIRECT STREAM): RJ-45, 1000BASE-T

      • Live streaming

      • SRT In/Out

    • DC IN jack

• Audio Input/Output Characteristics

  • Nominal Input Level

    • AUDIO IN 1–4: -52 to +4 dBu

      • Maximum input level: +24 dBu

    • LINE IN: -10 dBu

      • Maximum input level: +10 dBu

  • Input Impedance

    • AUDIO IN 1–4 (XLR, with phantom power): 5 kΩ

    • AUDIO IN 1–4 (XLR, without phantom power): 7 kΩ

    • AUDIO IN 1–4 (TRS 1/4-inch): 7 kΩ

    • LINE IN: 18 kΩ

  • Nominal Output Level

    • AUDIO OUT: -10 dBu

      • Maximum output level: +10 dBu

    • PHONES: 72 mW + 72 mW (32 Ω)

  • Output Impedance

    • AUDIO OUT: 1 kΩ

• Others

  • Display

    • 4.3-inch TFT color LCD

    • 480 × 272 dots

  • Power Supply

    • AC adaptor

  • Current Draw

    • 3.5 A

  • Power Consumption

    • 42 W

  • Operating Temperature

    • 0 to +40 °C

    • +32 to +104 °F

  • Dimensions

    • Width: 300 mm (11-13/16 inches)

    • Depth: 215 mm (8-1/2 inches)

    • Height: 86 mm (3-7/16 inches)

  • Weight (excluding AC adaptor)

    • 2.4 kg (5 lbs 5 oz)

• Accessories

  • Startup Guide

  • Leaflet: “USING THE UNIT SAFELY”

  • AC adaptor

  • Power cord