Analog signal to HDMI input

Hi!
I am searching for possibility to organize analog input for a DSP with HDMI input only.
I am using miniDSP HDA (2x HDMI inputs, 1x HDMI output, 8x analog outputs) for my multi-way DSP based speaker system. Normally I am streaming simply from my computer. HDMI output is connected to a beamer, but is not always used, I can simply listen to music without a video.
Now I need an analog input for this system. Sound quality is not a real concern in my case, and I need only stereo. I have seen of course simple AV2HDMI or VGA2HDMI converters, but will they work without video input, maybe someone has expirience?
Or maybe you can help me with a way to do it?
Thanks!
Andriy.
 

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I am searching for possibility to organize analog input for a DSP with HDMI input only.
If the DSP processes only the audio, then it may be better to opt for one with an audio interface like S/PDIF, as HDMI may not operate without video.
Or maybe you can help me with a way to do it?
That's doubtful since HDMI is a proprietary technology whose details cost money (licences).
 
Do you need an audio input and HDMI output device?
If so, I have one here that can provide 4 sets of AES/EBU inputs or 8 balanced analog inputs. HDMI output box.
It does not require video signal input. Video-related information is generated by the internal CPLD controller.