The Roland SR-20HD is a compact and powerful direct streaming AV mixer designed to simplify content production and livestreaming for businesses and organizations. With built-in encoders, the SR-20HD allows you to stream directly to multiple platforms without the need for a computer. Simply connect your AV devices and securely stream over LAN. The SR-20HD supports two simultaneous livestreams up to 1080p/60 FPS and includes an adaptive bitrate function to reduce freezing and dropouts due to bandwidth issues. The safety delay function ensures accidental moments are kept from being broadcast. The mixer features three video inputs: two HDMI and one USB video class, and two HDMI outputs for main and preview. The high-quality audio mixer includes eight input channels for mics and line-level devices. The SR-20HD also offers automatic video switching and audio mixing functions, making it easy to produce professional results with minimal training. Record streams directly to an SDXC card for archiving, editing, and distribution. The SR-20HD is designed to deliver consistent, dependable, and secure operation, reducing the need for technical support and experienced staff members.
- Video
- Video Processing
- 4:2:2 (Y/Pb/Pr), 8-bit
- Number of video channels
- 2 channels
- 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
* The input interlaced video signal is converted to progressive video signal by internal processing.
* 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 and Video Recorder
- Protocols: RTMP, RTMPS, SRT (Caller, Listener)
Container: FLV (RTMP, RTMPS), MPEG2-TS (SRT)
Recording File Format: MP4
Codec:
H.264, Profile High/Main/Baseline
720/59.94p, 720/50p, 1080/59.94p, 1080/50p
Target bitrate up to 20,000 kbps
AAC-LC, 16 bits, 48 kHz, stereo, target bitrate up to 384 kbps
* Stream and Video Recorder functions are not available in "SRT In only" mode.
- Audio Recorder
- File Format: WAV
Codec: Linear PCM, 16 bits, 48 kHz, stereo
* Audio Recorder function is not available in "SRT In only" mode.
- Video Player
- File Format: MP4
Codec:
H.264
Maximum 1080/29.97p, Progressive
Average bit rate of 10,000 kbps or less
AAC LC, 16 bits, 48kHz, Stereo
* Video Player function is not available in "High Quality" mode or "SRT In only" mode.
- SRT In
- Protocols: SRT (Caller, Listener)
Container: MPEG2-TS
Codec:
H.264
Maximum 1080/60p, Progressive
Average bit rate of 20,000 kbps or less
AAC LC, 16 bits, 48 kHz, Stereo
* SRT In function is not available in "High Quality" mode.
* In "Standard" mode, the SRT In is limited to maximum 1080/30p, average bit rate of 10,000 kbps or less.
- 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
* USB Video and Audio functions are not available in "High Quality" mode or "SRT In only" mode.
- 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
- Number of audio channels
- 15 channels
- 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 (for Live Streaming and SRT In/Out)
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
Roland SR-20HD
Startup Guide
Leaflet "USING THE UNIT SAFELY"
AC adaptor
Power cord
