Troubleshoot Audio Issues

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Audio is Not Loud Enough

When you convert your analog audio to digital, usually through the use of an embedder, you may find that your audio is not coming through as loudly as it was before converting it. This is usually because of a gain staging issue that can be fixed by increasing the input level on your embedder. You will need to consult your embedder’s documentation in order to do this. If you continue to experience a lack of gain on your output stream, you may consider adding a limiter to your primary output bus. For more information on limiters and how to use them, please consult this introduction to limiters (links to external site)

Audio Artifacts on Facebook or YouTube

If you notice audible artifacting (unwanted noise coming from distortion, clipping, fuzz, etc.) in your social media stream, it could be because your encoder preset is set to exceed the limits set within Facebook and YouTube. This can be your total bitrate or the audio bitrate. You can adjust your bitrates by doing the following:

  1. Navigate to Settings > Encoder Presets in Studio.
  2. Click on the name of the preset you want to edit to access the preset details.
  3. Click the edit icon .
  4. Scroll down to Advanced Settings and make sure the following are true:
    • Video Channels are set to 1 and do not exceed 4 Mbps.
    • Audio Channels do not exceed 64 kbps per channel, regardless of how many are selected.
  5. Scroll down to the Bandwidth Recommendation Calculator to see your total combined bitrate and make sure it does not exceed 5 Mbps, which is our recommended bitrate for social media. 
  6. Stop and restart your stream in order for the changes to take effect.

If you are still noticing audio artifacts in your stream, you can try lowering your video bitrate or decreasing the number of audio channels you are using. 

Decoder Audio Issues

Audio Static

If you are using a de-embedder to convert your digital audio signal to analog and all you can hear is static, it may be because of your AES settings on the de-embedder. This is because AES audio output will come through as static in an analog system. You can confirm this by plugging in a pair of headphones to the headphone jack on your decoder. If you can hear sound, then you will need to consult your de-embedder’s manual to adjust the output settings to ensure you're outputting analog audio instead of AES.

No Audio from Decoder Headphone Jack

If you are running an event at a remote venue, you can make sure your audio signal is reaching your decoder by using the headphone jack to monitor it. However, you may notice that no audio is coming through, especially if you are using an HDMI connection to your monitor. This may be because your monitor is being selected as the default audio device by the decoder. If you would like to change this, you should take the following steps:

  1. If you have not already done so, log into the decoder interface.
  2. Press Alt+F2 (Fn+F2 if you are using TeamViewer from a Mac) to bring up the command dialogue.
  3. Type “gnome-control-center sound” and press the return key.
  4. Select the “line-out” option.
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