'DRM30' FREE
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Although air coupling the demodulated DRM Audio between the receiver speaker / headphone and the microphone input of the Smartphone / Tablet will work to some degree. Likely ambient noise will be introduced causing the decoding to be less than ideal. Holding the smartphone microphone near the demodulated DRM output is a quick way to check the SDC. A direct cable or even a filtered line may be needed to decouple Phone / PC / Receiver noise for a solid MSC and audio decode.
If you use a headphone / microphone multi pole plug (like the diagram below), the decoded DRM audio will automatically route to the Headphone jack, so an Audio Switching App (many available on google play store) can be used to route audio to the main speaker of the phone.
If you use a headphone / microphone multi pole plug (like the diagram below), the decoded DRM audio will automatically route to the Headphone jack, so an Audio Switching App (many available on google play store) can be used to route audio to the main speaker of the phone.
Let us know if you use this in your tests... And how it works...
I tried DRM App decoding on Android mobile.
ReplyDeletehttps://play.google.com/store/apps/details?id=com.algorkorea.app.drm1
Connected Radio audio to mobile mic, as per instruction. Checked BBC towards south asia at 0800 UTC. But no luck. I tried some other stations to check recording and found that recording working perfectly with any audio recorder. I checked audio output from laptop tuned to kiwi Web SDR. Tuned powerful DRM Stations, but still no luck. Dream Software on PC can decode DRM signals.
What would be the problem?
I'm sorry but the links to the DRM apps don't work anymore, plus the apps themselves aren't available on the Play Store as well.
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