sudo rm temp_audio.v
sudo rm temp_video.h264
mkfifo temp_audio.v
mkfifo temp_video.h264
arecord -Dmic_sv -c2 -r48000 -fS32_LE -twav temp_audio.v & \
raspivid -fps 10 -v -b 3000000 -o temp_video.h264 -t 0 & \
~/special/ffmpeg/ffmpeg \
    -framerate 10 \
    -re \
    -i temp_video.h264 \
    -i temp_audio.v \
    -ab 32k \
    -ac 2 \
    -c:v copy \
    -c:a aac \
    -report \
    -async 2 \
    -vsync 2 \
    -f flv rtmp://209.85.230.23/live2/xbjs-a3gp-0yvk-ftdg