The HDMI Audio Inserter from Sescom allows you to replace the audio in an HDMI signal path with audio from an external source. You can simultaneously connect two external audio sources: one via the optical digital input, and one via the stereo RCA input. You can then switch between the two external sources, or use the original HDMI audio. These features can be used in A/V scenarios such as video presentations in which a speaker may wish to periodically interrupt the audio from a DVD player with audio from his or her microphone. This way the speaker can add commentary to a video presentation in place of the DVD's audio, without interrupting its video. The device is HDMI 1.3, HDCP 1.2, and DVI 1.0 compliant and features support for 3D HDMI, high-bit-rate audio, and a TMDS clock frequency rate of 225 MHz.
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Key Features
- Insert External Audio to HDMI Signal
- Digital TOSLINK and Stereo RCA Inputs
- HDMI Sample Rates up to 192 kHz
- Optical Sample Rates up to 48 kHz
The HDMI Audio Inserter from Sescom allows you to replace the audio in an HDMI signal path with audio from an external source. You can simultaneously connect two external audio sources: one via the optical digital input, and one via the stereo RCA input. You can then switch between the two external sources, or use the original HDMI audio.
These features can be used in A/V scenarios such as video presentations in which a speaker may wish to periodically interrupt the audio from a DVD player with audio from his or her microphone. This way the speaker can add commentary to a video presentation in place of the DVD's audio, without interrupting its video. The device is HDMI 1.3, HDCP 1.2, and DVI 1.0 compliant and features support for 3D HDMI, high-bit-rate audio, and a TMDS clock frequency rate of 225 MHz.
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Sescom SES-AUDIO Overview
Stereo and Multi-Channel Surround Support
Insert stereo audio from mixers and iPods as well as multi-channel surround format audio from DVD players or computers into an HDMI signal path. External output sources can be connected to the unit's digital optical input or analog stereo RCA input.
Switch Between Digital Input, Analog Input, or Original HDMI Audio
Allows for switching between the digital input, the analog input, or the original HDMI audio.
High-Quality Audio
Supports HDMI sample rates up to 192 kHz and optical sample rate up to 48 kHz.
Supports Long HDMI Cable Runs
The HDMI Audio Inserter supports 12-bit 1080p video through cables up to 32.8' long, or 8-bit 1080p with cables up to 49.2'.
Sescom SES-AUDIO Specs
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Packaging Info
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Sescom SES-AUDIO Reviews
Very Useful Switch
By Dwight
Rated 5 out of 5
Date: 2026-02-22
I used this switch to switch the ALC and Relay lines between two Amateur radio HF transceivers and my linear amplifiers. It makes a neat way to switch RCA cables without having to plug and unplug cables to switch radios.
Two Keyboards 2 Inputs Solved
By Sherman
Rated 5 out of 5
Date: 2022-04-07
I have only two inputs left on my audio interface for keyboards. I have two keyboards. This little beauty lets me play and record either. The real beauty comes from switching to A for my sweetening keyboard while using keyboard B as the MIDI master. That way I can record the audio from my sweetening keyboard with the Sescom switch set to A at the same time as recording several MIDI sound modules that are outputting the sounds from they synths my B (MIDI master) keyboard is playing through. By recording the MIDI, I can go back and run this MIDI recording into keyboard B to record its sound (that had to be left out due to the switch being in the A position for the initial recording. Simply marvelous! This little switch has made a HUGE difference.
See any errors on this page?
How do you set HDMI output resolution? For ex, ...
How do you set HDMI output resolution? For ex, Blackmagic ATEM switcher requires all HDMI & SDI devices have the same setting.
You will need to have your HDMI device set to the correct resolution prior to inserting audio. The SES-AUDIO-N-HDMI accepts the incoming HDMI signal and outputs the same resolution with audio inserted- there is no way to adjust the resolution within the unit.
Date published: 2020-03-16
Does this device support HDR, 4K@60hz?
Does this device support HDR, 4K@60hz?
Hi Jesper. The SES-AUDIO-N-HDMI is only rated 1080p, and unfortunately does not support 4K@60Hz.
Thank you,
Dan
Sescom
Date published: 2019-09-30
Will this embed an external audio stream into an ...
Will this embed an external audio stream into an HDMI stream that DOES NOT have a native audio stream already?
Yes. This is exactly what you need to embed external audio into HDMI that has audio already, or has none.
Date published: 2019-03-19
Will this embed an external audio stream into the ...
Will this embed an external audio stream into the HDMI video stream that DOES NOT have a native audio stream already?
Yes, this unit will allow you to embed analog out into a video-only HDMI source signal.
Date published: 2021-01-18
question
Can you upload photos of other sides? I need to see more of the product to know whether it can work for my problem. Thanks
We do not have a stock photo of the other side at this time. It has L/R RCA audio or Toslink in with HDMI in on the other side.You can see an illustration of that in the manual (pg. 3) :http://www.sescom.com/Attachments/Manuals/Sescom/SES-AUDIO-N-HDMI_Man.pdfThanks!
Date published: 2018-08-28
question
With only the toslink audio connected (no video hdmi source connected) will this work to create an audio-only hdmi signal? I need to create a streaming audio input into an hdmi switcher downstream...
Tod is correct. This product will embed onto an existing HDMI signal only.
Date published: 2018-08-28
question
Does this device let me take the hdmi out (video+audio) from my camera and let me replace the camera's audio with my house audio mix?
Yes, this device will perform the function described in your question.
Date published: 2018-08-28
question
Hi!I need to combine the audio from the source HDMI and a external RCA (microphone), but both sounds should play simultaneously. Does this device let me to that?NOTE: i DO NOT need to replace the source audio signal.
Hi J.P.,To do that you'd actually need an hdmi audio extractor (unless your source has analog audio out that actually outputs audio when the hdmi output is being used simultaneously), and a mixer with a mic pre-amp. You would then mix that feed and the external rca mic's feed, and then use the SES-AUDIO-HDMI to insert the finished mix back into the HDMI.
Date published: 2018-08-28