Why is My Audio Playing without Video on iOS Devices?

By Ruth Young

2 Min Read

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Ruth Young

Ruth is a Customer Success Specialist with experience in digital video platforms as well as technology companies in Silicon Valley and beyond.

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    If the video on your live stream is not showing up on iPhones and iPads but you can hear the audio, this likely means there is an issue with your video codec. H.264 is the suggested video codec.

    Most often this problem is the result of using VP6 set up as the video codec, as shown below:

    audio only

    What is an Encoder?

    Both audio and video codecs have to do with your live stream encoder.

    Encoding is a process used to convert the RAW video files captured by a camera into digital files suitable for live streaming over the internet. This process uses either a hardware or software encoder.

    Required Live Encoder Settings

    The following live encoder settings are required for live streaming with Dacast, regardless of your selected resolution and bitrate:

    VIDEO CODECH.264 (x264 may work)
    FRAME RATE25 or 30
    KEYFRAME INTERVAL2 secs (or 2x frame rate)
    SCANNINGProgressive
    ENCODING BITRATEConstant (CBR)
    AUDIO CODECAAC
    AUDIO BITRATE128 kbps
    AUDIO CHANNELS2 (Stereo)
    AUDIO SAMPLE RATE48 kHz (48,000 Hz)

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    author avatar

    Ruth Young

    Ruth is a Customer Success Specialist with experience in digital video platforms as well as technology companies in Silicon Valley and beyond.

    Sign up for a 14-Day trial.

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