Roland SR-20HD Direct Streaming AV Mixer

Roland SR-20HD AV Streaming Mixer designed to control using a computer

When Livestream Directly to Multiple Platforms—No Computer Required

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.

Built for Success

The SR-20HD is designed to make everyone successful with livestream operation and management, regardless of experience. It combines dual streaming encoders, simple video switching, audio mixing, and recording support in one unit, simplifying production tasks and reducing points of failure.

Plug In and Stream

Using the two HDMI inputs, you can connect common video sources such as cameras, smartphones, tablets, and computers running presentation software. In addition, a wide range of audio inputs are available for mics, music players, electronic musical instruments, and more.

Once everything is plugged in, simply connect to your network router and begin livestreaming with team members, clients, or students on Facebook, YouTube Live, Twitch, or by RTMP to your CDN.

Secure and Reliable Operation

Packed with advanced Roland A/V technologies, the SR-20HD reduces the need for technical support and experienced staff members. Automatic functions run in the background to eliminate dropped streams and help protect your organization from broadcasting inappropriate content. And since all streaming tasks are handled within the SR-20HD, there’s no risk of malware and other issues that come with computer-based streaming on your enterprise network.

Adaptive Bitrate

The SR-20HD’s unique Adaptive Bitrate function monitors the quality of the network connection and automatically adjusts the streaming rate to reduce interruptions due to bandwidth issues.

Mobile Phone Tethering

A mobile phone with a 4G or 5G data plan can be used as the primary streaming connection or a redundant backup. Should anything happen to your main hardwired network connection, the SR-20HD will automatically switch to the tethered mobile phone over USB.

Safety Delay

With the SR-20HD, you can confidently stream unscripted events and prevent offensive content from being broadcast to your audience. The Safety Delay function buffers up to 60 seconds of video and audio, allowing you to switch to a still image or mute the sound if anything goes wrong.

Dual Streaming Destinations

Encode and broadcast livestreams to two independent channels on the same platform to reach a wider audience or create a backup for archiving or later distribution.

Simplified Recording and Playback

The SR-20HD’s onboard recorder lets you capture H.264 MP4 video* to an SDXC card for later editing or uploading to YouTube or enterprise intranets. In addition, stereo WAV audio can be captured independently for podcasts and other audio-driven media. It’s also possible to access media stored on the SDXC card to bring higher production values to your presentations.**
*The recording bitrate is the same as the livestream encoding bitrate.
**SDXC video playback is only available when streaming in Standard mode.

Auto Mixing

The Auto Mixing function ensures that the mix between your connected microphones remains balanced. You can set specific inputs to take priority when someone starts to speak, and other audio levels are automatically reduced as needed.

Advanced Audio Control

The SR-20HD covers the divergent audio needs of single presenters, conference panels, and even music performances. Inputs for up to four professional XLR microphones, line-level signals, and a headset mic provide multiple ways to connect all common analog sources. You can also mix in digital audio from HDMI and USB sources, plus audio from videos and music files stored on an SDXC card.

Make quick volume adjustments for individual sources using the dedicated faders and knobs. And go deeper with EQ and dynamics processing via the preview display and F1–F4 encoders. You also have five user-assignable function buttons to speed up your workflow, providing quick access to Auto Mixing, audio/video playback, F1–F4 functions, and more.

Video
Video Processing	4:2:2 (Y/Pb/Pr), 8-bit
Input Formats	HDMI IN 1--2 connectors: 720/59.94p, 720/50p, 1080/59.94i, 1080/50i, 1080/59.94p, 1080/50p SVGA (800 x 600/60Hz), XGA (1024 x 768/60Hz), WXGA (1280 x 800/60Hz), FWXGA (1366 x 768/60Hz), SXGA (1280 x 1024/60Hz), SXGA+ (1400 x 1050/60Hz), UXGA (1600 x 1200/60Hz), Full HD (1920 x 1080/60Hz), WUXGA (1920 x 1200/60Hz) * The refresh rate is the maximum value of each resolution. * Conforms to CEA-861-E, VESA DMT Version 1.0 Revision 11. * 1920 x 1200/60 Hz: Reduced blanking * HDCP is not supported.
Output Formats	HDMI OUT MAIN, PVW connectors: 1080/59.94p, 1080/50p * The video signal frame rate can be selected at the SYSTEM menu (59.94 Hz or 50 Hz). * HDCP is not supported.
Stream, Video Recorder, and Audio Recorder formats	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 48kHz 16bit Stereo, target bitrate up to 384 kbps File Format: WAV Audio Codec: Linear PCM, 16 bit/48 kHz, stereo
Video Player	File Format: MP4 Video Codec: H.264 Maximum 1080p29.97 Average bit rate of 10,000 kbps or less Audio Codec: AAC LC 48kHz 16bit Stereo
USB Video or Audio	USB Video: Maximum 720p29.97, Uncompressed (YUY2) USB Audio: Linear PCM, 16 bit/48 kHz, stereo * You can use either USB video or USB audio. * The USB VIDEO IN Mode can be selected at the SYSTEM menu (Video Only or Audio Only). * The USB STREAM output of the following Roland products can be used with the SR-20HD: VR-4HD, UVC-01
Import Still Image	PNG File (.png), Maximum 1920 x 1080 pixels, 24-bit color (alpha channel not supported) JPEG File (.jpg .jpeg), Maximum 1920 x 1080 pixels, 24-bit color
Save Still Image	JPEG File (.jpg), 1920 x 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
Audio Formats	HDMI IN/OUT connectors: Linear PCM, 24 bit/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 is required for video recording. When using the SR-20HD, you must always install an SD card.
Other Functions	Panel lock function EDID emulator
CONNECTORS
Input Connectors	HDMI IN 1--2 connectors: HDMI type A (Multi-format supported) AUDIO IN 1--4 jacks: Combo type XLR type: balanced, phantom power (DC 48 V, 10 mA), (1 GND, 2 HOT, 3 COLD) 1/4-inch TRS phone: balanced
Output Connectors	HDMI OUT MAIN, PVW connectors: HDMI type A LINE OUT jack: RCA phono type PHONES jack: Stereo miniature phone type
Input/Output Connector	HEADSET jack: Stereo miniature phone type (3.5 mm, 1/8-inch, TRRS 4-pole, CTIA)
Other Connectors	USB VIDEO IN port: USB A (USB 3.0) USB CONTOL port: USB A (USB 2.0) LAN (DIRECT STREAM) port: RJ-45, 1000BASE-T DC IN jack
AUDIO INPUT / OUTPUT CHARACTERISTICS
Nominal Input Level	AUDIO IN 1--4 jacks: -52 to +4 dBu (Maximum Input level: +24 dBu) LINE IN jack: -10 dBu (Maximum Input level: +10 dBu)
Input Impedance	AUDIO IN 1--4 jacks (XLR type, with phantom power): 5 k ohms AUDIO IN 1--4 jacks (XLR type, without phantom power): 7 k ohms AUDIO IN 1--4 jacks (TRS 1/4-inch phono type): 7 k ohms LINE IN jack: 18 k ohms
Nominal Output Level	AUDIO OUT jack: -10 dBu (Maximum Output level: +10 dBu) PHONES jack: 72 mW + 72 mW (32 ohms)
Output Impedance	AUDIO OUT jack: 1 k ohm
OTHERS
Display	4.3 inches TFT color LCD: 480 x 272 dots
Power Supply	AC adaptor
Current Draw	3.5 A
Power Consumption	42 W
Operation Temperature	+0 to +40 degrees Celsius +32 to +104 degrees Fahrenheit
Dimensions	300 (W) x 215 (D) x 86 (H) mm 11-13/16 (W) x 8-1/2 (D) x 3-7/16 (H) inches
Weight (excluding AC adaptor)	2.4 kg 5 lbs 5 oz
Accessories	Startup Guide Leaflet "USING THE UNIT SAFELY" AC adaptor Power cord