1. Welcome to the new MacRumors forums. See our announcement and read our FAQ

No audio from MP4 video file on ATV. Why?

Discussion in 'Apple TV and Home Theater' started by institute, Sep 20, 2013.

  1. macrumors regular

    I have an MP4 video file, that on the ATV the video plays but there is no audio. This is the case whether I play it via Home Sharing or through Plexconnect. If I force transcoding via the Plexconnect settings, the audio does play. My question: Does anyone know why this is the case and is there anyway to get the audio to play without forcing transcoding?

    Here is what I know about the audio stream in the file:

    The maker says Audio 1: English | 128 Kbps | 2ch | AAC

    According to VLC media information:

    Codec: MPEG AAC Audio (mp4a)
    Channels: Stereo
    Sample Rate: 48000 Hz

    This is the video info:

    Codec: H264—MPEG—4 AVC (part10) (avc1)
    Resolution: 1920 X 794
    Frame rate: 23.976

Share This Page