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Powering HDMI Audio Extractors vs HDMI-VGA-Audio Converters
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Koray:
Hi all,

I have a Google Chromecast device with a single HDMI output which I want to use with a HDMI projector. Unfortunately the projector has no audio output and I have no way to get sound out of such system.

When I search for in-line HDMI Audio Extractors I only find tiny USB powered items at around 10USD range, but when I search for HDMI-VGA Converters (with audio output) I find self powered in-line adapters for about 2USD price range. Price is not important, but I don't want to complicate the setup with an extra power cable for the audio extractor.

Here are some questions:


* What is the difference?
* Why can't they build cheap and simple audio extractors without audio output?
* Can I re-purpose an audio capable in-line HDMI-VGA converter to HDMI audio extractor?
I am attaching two sample devices for reference.

K.



NiHaoMike:
Have you considered opening up the projector and rewiring the speaker output to external speakers?
Koray:
The projector has no audio. I wouldn't do that anyway, I can just use a powered audio extractor.

But I wonder if the HDMI VGA cable can be converted into a HDMI bypass with audio output?

K.
NiHaoMike:

--- Quote from: Koray on May 10, 2020, 03:51:49 pm ---But I wonder if the HDMI VGA cable can be converted into a HDMI bypass with audio output?

--- End quote ---
Not easily. HDMI operates well into the GHz and the only proper way to split it is to use active circuits. You might manage to get away with a parallel connection for such a short distance, but HDMI is fine pitch enough that I wouldn't consider it trivial to solder.
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