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I executed the command

ffmpeg -list_devices true -f dshow -i dummy  

to find out that the audio device is Realtek HD Audio Input. But executing the command

ffmpeg -f dshow -i audio="Microphone (Realtek HD Audio Input" -acodec libmp3lame -ab 128k -ac 2 -ar 44100 -re -f rtp://10:14:35:12:1234  

gives the error
"Could not find audio device. audio='Microphone (Realtek HD Audio Input: Input/output error"

I have checked for the working of the microphone and it works well. Please let me know what is the issue here.

The machine runs on Windows-XP SP2.

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Please include the full, uncut ffmpeg console output for both commands. –  slhck Sep 29 '13 at 19:21
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1 Answer

Just Try :

ffmpeg -f dshow -i audio="Realtek HD Audio Input" -acodec libmp3lame -ab 128k -ac 2 -ar 44100 -re -f rtp://10:14:35:12:1234

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