[FFmpeg-user] Video/Audio speed reduces when recording started

[Mayuresh]

Gurus, can someone please guide me with this?

On Sun, Aug 20, 2017 at 8:07 PM, Mayuresh <mayuresh.kshirsagar at gmail.com>
wrote:

> Hi Gurus,
>
> I have connected my bluetooth device to my mac (AirPods) and try to record
> the mic as well as a running youtube video by running the command:
>
> ffmpeg -f avfoundation -video_size 640x480 -framerate 30
> -video_device_index  0 -i ":2" outsf.avi
>
> However when I start the recording I see 2 problems:
> 1. The sound thats coming in the airpods has gaps - like it stops for a
> couple of milli seconds
> 2. The speed of the running youtube autio/video reduces to 1/2 or even
> lower
>
> What am I doing wrong?
>
> If I use the built-in audio and mic, the recording runs fine without any
> problem.
>
> I am using the soundflower 2ch to capture and redirect the output to the
> recording input, and have created the aggregate devices and multi-output
> devices.
>
> Let me know.
>
> Thanks,
> Mayuresh
>



-- 
-Mayuresh