Audio latency for HLS, any way to fix or detect latency?

[AVasic]

Hi I'm trying to stream live video on mobile by slicing input to jpegs, and playing audio from HLS, this all works, but problem is that audio is 15-30 seconds late. Do you notice from my config that I'm doing something wrong? Is there an option to detect how late audio is so that I can somehow sync images with sound? Thanks in advance!

My config:

 http {
        server {
         listen       8081;
        server_name  localhost;

        location / {
            root   html;
            index  index.html index.htm;
        }
        location /hls {
        types {
            application/vnd.apple.mpegurl m3u8;
            video/mp2t ts;
        }
        alias /dev/shm/hls;
    add_header Cache-Control no-cache;
    }

    location /stat {
        rtmp_stat all;
        rtmp_stat_stylesheet stat.xsl;
    }

    location /stat.xsl {
        root /usr/local/src/nginx-1.6.2/nginx-rtmp-module;
}
}
rtmp {
    server {
        listen 1935;
        application live {
            live on;
            wait_video on;
            wait_key on;

            exec_push mkdir -p /dev/shm/feeds/$name;

        exec_push /usr/bin/ffmpeg -i rtmp://127.0.0.1/live/$name -vf fps=120/60 /dev/shm/feeds/$name/$name_%08d.jpg;
            exec_push /usr/bin/ffmpeg -i rtmp://127.0.0.1/live/$name -vn -acodec libfdk_aac -vcodec copy -tune zerolatency -analyzeduration 0 -f flv rtmp://127.0.0.1/hls/$name;
        }
        application hls {
            live on;
            hls on;
            hls_path /dev/shm/hls;
            hls_fragment 2s;
            hls_playlist_length 8s;
            hls_sync 300ms;
      }
        application audio {
            live on;
        }
    }
 }

[GraphicSound]

@AVasic Hi, I have the same request, have you figured out how to achieve that? Thx!

[sergey-dryabzhinsky]

Try tune ffmpeg input params for images: exec_push /usr/bin/ffmpeg -i "rtmp://127.0.0.1/live/$name live=1 buffer=8000" ... and for audio: exec_push /usr/bin/ffmpeg -i "rtmp://127.0.0.1/live/$name live=1 buffer=300" ...