Weird “exploding” sound when video starts

I have a weird “exploding” sound when my video starts. I have “volume: 0” everywhere and no soundtrack so I am not sure what’s happening.
Any ideas?

Could you share a uuid or link to the video or json where this is occuring?

Yes sure, here is the Json:

{
  "merge": [
      {
          "find": "NAME",
          "replace": "DANA"
      },
      {
          "find": "AGE",
          "replace": "11"
      },
      {
          "find": "DOCTORS",
          "replace": "4"
      },
      {
          "find": "SYMPTOM_0",
          "replace": "FAINTING"
      },
      {
          "find": "SYMPTOM_1",
          "replace": "HEADACHE"
      },
      {
          "find": "SYMPTOM_2",
          "replace": "NAUSEA"
      },
      {
          "find": "SYMPTOM_3",
          "replace": "PAIN DURING INTERCOURSE"
      },
      {
          "find": "SYMPTOM_4",
          "replace": "DEPRESSION"
      },
      {
          "find": "STAGE",
          "replace": "4"
          
      },
      {
          "find": "YEARS_PAIN",
          "replace": "3"
          
      }
  ],
  "timeline": {
    "tracks": [
      {
        "clips": [
          {
            "asset": {
              "type": "title",
              "text": "{{NAME}}",
              "style": "chunkLight",
              "size": "medium",
              "color": "#FFFFFF",
              "background": "#ED1E9D",
              "position": "center",
              "offset": {
                  "x": 0,
                  "y": 0.45
              }
            },
            "start": 0,
            "length": 5,
            "transition": {
              "in": "reveal" 
            }
          },
          {
            "asset": {
              "type": "title",
              "text": "{{AGE}}",
              "style": "chunkLight",
              "size": "xx-large",
              "color": "#FFFFFF",
              "background": "#00FFFFFF",
              "position": "center",
              "offset": {
                  "x": -0.1,
                  "y": 0
              }
            },
            "start": 10.5,
            "length": 3,
            "transition": {
              "in": "slideUp" 
            }
          },
          {
            "asset": {
              "type": "title",
              "text": "{{DOCTORS}}",
              "style": "chunk",
              "size": "xx-large",
              "color": "#FFFFFF",
              "background": "#00FFFFFF",
              "position": "center",
              "offset": {
                  "x": 0,
                  "y": 0.1
              }
            },
            "start": 13.5,
            "length": 3,
            "transition": {
              "in": "zoom" 
            }
          },
          {
            "asset": {
                "type": "html",
                "html": "<p>{{SYMPTOM_0}}</p>",
                "css": "p { color: #ffffff; font-size: 50px; font-family: 'Montserrat', sans-serif; font-weight: 60} ",
                "width": 500,
                "height": 80,
                "background": "#fc036b"
            },
            "start": 16.5,
            "length": 5,
            "transition": {
              "in": "slideUp" 
            },
              "position": "center",
              "offset": {
                  "y": 0.1
                  }
          },
          {
            "asset": {
                "type": "html",
                "html": "<p>{{SYMPTOM_1}}</p>",
                "css": "p { color: #ffffff; font-size: 50px; font-family: 'Montserrat', sans-serif; font-weight: 60} ",
                "width": 500,
                "height": 80,
                "background": "#0f03fc"
            },
            "start": 17,
            "length": 4.5,
            "transition": {
              "in": "slideUp" 
            },
              "position": "center",
              "offset": {
                  "y": 0
                  }
          },
          {
            "asset": {
                "type": "html",
                "html": "<p>{{SYMPTOM_2}}</p>",
                "css": "p { color: #ffffff; font-size: 50px; font-family: 'Montserrat', sans-serif; font-weight: 60} ",
                "width": 500,
                "height": 80,
                "background": "#fc5603"
            },
            "start": 17.5,
            "length": 4,
            "transition": {
              "in": "slideUp" 
            },
              "position": "center",
              "offset": {
                  "y": -0.1
                  }
          },
          {
            "asset": {
                "type": "html",
                "html": "<p>{{SYMPTOM_3}}</p>",
                "css": "p { color: #ffffff; font-size: 50px; font-family: 'Montserrat', sans-serif; font-weight: 60} ",
                "width": 500,
                "height": 80,
                "background": "#9803fc"
            },
            "start": 18,
            "length": 3.5,
            "transition": {
              "in": "slideUp" 
            },
              "position": "center",
              "offset": {
                  "y": -0.2
                  }
          },
          {
            "asset": {
                "type": "html",
                "html": "<p>{{SYMPTOM_4}}</p>",
                "css": "p { color: #ffffff; font-size: 50px; font-family: 'Montserrat', sans-serif; font-weight: 60} ",
                "width": 500,
                "height": 80,
                "background": "#14fc03"
            },
            "start": 18.5,
            "length": 3,
            "transition": {
              "in": "slideUp" 
            },
              "position": "center",
              "offset": {
                  "y": -0.3
                  }
          },
          {
            "asset": {
              "type": "title",
              "text": "{{STAGE}}",
              "style": "chunk",
              "size": "xx-large",
              "color": "#FFFFFF",
              "background": "#00FFFFFF",
              "position": "bottom",
              "offset": {
                  "x": 0.2,
                  "y": 0
              }
            },
            "start": 21.5,
            "length": 5,
            "transition": {
              "in": "revealSlow" 
            }
          },
          {
            "asset": {
              "type": "title",
              "text": "{{YEARS_PAIN}}",
              "style": "chunk",
              "size": "x-large",
              "color": "#FFFFFF",
              "background": "#00FFFFFF",
              "position": "top",
              "offset": {
                  "x": 0,
                  "y": -0.1
              }
            },
            "start": 21.5,
            "length": 5,
            "transition": {
              "in": "revealFast" 
            }
          }
        ]
      },
      {
        "clips": [
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1VYuzq57y5QgdWHYtqEqsAK276dp0Ges_",
              "volume": 0
            },
            "start": 0,
            "length": 5
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=11ImT9J7ajO-0rteIuIX0rka-9yokWjfJ",
              "volume": 0
            },
            "start": 5,
            "length": 5.5
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1HTstH3aLAuC9SC2s79eFfYhyoxqwUbam",
              "volume": 0
            },
            "start": 10.5,
            "length": 3
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1DEoI1vFPBgv79RSZZOJcrMU9nlo0f6rp",
              "volume": 0
            },
            "start": 13.5,
            "length": 3
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1fYIQYBlvdOv_6W_avRi4HtWTnqQSQ-HH",
              "volume": 0
            },
            "start": 16.5,
            "length": 5
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1-LaI9Bq6_dCKkwiomy3BufZdFc3FTlRO",
              "volume": 0
            },
            "start": 21.5,
            "length": 5
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1oyVSSQxGqV19Nte3aNPK8_-CSWvO02mY",
              "volume": 0
            },
            "start": 26.5,
            "length": 11
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1Sp0GD5w5bA6Z5vF4l1xEnKJMQovrzLv2",
              "volume": 0
            },
            "start": 37.5,
            "length": 11
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1EyhgW6LFdL7dJmAZf8CfhdMA323gPXvz",
              "volume": 0
            },
            "start": 48.5,
            "length": 3
          }
        ]
      }
    ],
    "fonts": [
      {
        "src": "https://shotstack-assets.s3-ap-southeast-2.amazonaws.com/fonts/AmaticSC-Bold.ttf"
      }
    ],
    "background": "#000000"
  },
  "output": {
    "format": "mp4",
    "size": {
        "width": 720,
        "height": 1280
    }
  }
}

I rendered the video but I can’t hear anything. Is this happening on a particular type of player?

Thanks! Well it happens on any player I tried this on: QuickTime player on Mac, playing it from iPhone (either as an attachment on WhatsApp for example, or in an Email)…it also makes that sound when playing the video out of the ShotStack Editor. Maybe could you tell me if it happens to you in the Editor?

I tried it in a few different players including the Editor but cannot reproduce your issue for some reason. Is it happening with the video I shared above? Or with the video that you rendered? If the latter can you share that one?

Ok so I realised the one I sent you also doesn’t make the sound for me, but I had the issue with all the other videos I rendered.
Here is one that makes the exploding sound:

And here is the JSON of that video:

{
  "timeline": {
    "tracks": [
      {
        "clips": [
          {
            "asset": {
              "type": "title",
              "text": "{{146515004__COL$A}}",
              "style": "chunkLight",
              "size": "medium",
              "color": "#FFFFFF",
              "background": "#ED1E9D",
              "position": "center",
              "offset": {
                  "x": 0,
                  "y": 0.45
              }
            },
            "start": 0,
            "length": 5,
            "transition": {
              "in": "reveal" 
            }
          },
          {
            "asset": {
              "type": "title",
              "text": "{{146517710__COL$A}}",
              "style": "chunkLight",
              "size": "xx-large",
              "color": "#FFFFFF",
              "background": "#00FFFFFF",
              "position": "center",
              "offset": {
                  "x": -0.1,
                  "y": 0
              }
            },
            "start": 10.5,
            "length": 3,
            "transition": {
              "in": "slideUp" 
            }
          },
          {
            "asset": {
              "type": "title",
              "text": "{{146515004__COL$H}}",
              "style": "chunk",
              "size": "xx-large",
              "color": "#FFFFFF",
              "background": "#00FFFFFF",
              "position": "center",
              "offset": {
                  "x": 0,
                  "y": 0.1
              }
            },
            "start": 13.5,
            "length": 3,
            "transition": {
              "in": "zoom" 
            }
          },
          {
            "asset": {
              "type": "title",
              "text": "{{146517710__COL$C}}",
              "style": "chunk",
              "size": "small",
              "color": "#FFFFFF",
              "background": "#fc036b",
              "position": "center",
              "offset": {
                  "x": 0,
                  "y": 0.7
              }
            },
            "start": 16.5,
            "length": 5,
            "transition": {
              "in": "slideUp" 
            }
          },
          {
            "asset": {
              "type": "title",
              "text": "{{146517710__COL$D}}",
              "style": "chunk",
              "size": "small",
              "color": "#FFFFFF",
              "background": "#0f03fc",
              "position": "center",
              "offset": {
                  "x": 0,
                  "y": 0.3
              }
            },
            "start": 17,
            "length": 4.5,
            "transition": {
              "in": "slideUp" 
            }
          },
          {
            "asset": {
              "type": "title",
              "text": "{{146517710__COL$E}}",
              "style": "chunk",
              "size": "small",
              "color": "#FFFFFF",
              "background": "#fc5603",
              "position": "center",
              "offset": {
                  "x": 0,
                  "y": -0.1
              }
            },
            "start": 17.5,
            "length": 4,
            "transition": {
              "in": "slideUp" 
            }
          },
          {
            "asset": {
              "type": "title",
              "text": "{{146517710__COL$F}}",
              "style": "chunk",
              "size": "small",
              "color": "#FFFFFF",
              "background": "#9803fc",
              "position": "center",
              "offset": {
                  "x": 0,
                  "y": -0.5
              }
            },
            "start": 18,
            "length": 3.5,
            "transition": {
              "in": "slideUp" 
            }
          },
          {
            "asset": {
              "type": "title",
              "text": "{{146517710__COL$G}}",
              "style": "chunk",
              "size": "small",
              "color": "#FFFFFF",
              "background": "#14fc03",
              "position": "center",
              "offset": {
                  "x": 0,
                  "y": -0.9
              }
            },
            "start": 18.5,
            "length": 3,
            "transition": {
              "in": "slideUp" 
            }
          },
          {
            "asset": {
              "type": "title",
              "text": "{{146517710__COL$M}}",
              "style": "chunk",
              "size": "xx-large",
              "color": "#FFFFFF",
              "background": "#00FFFFFF",
              "position": "bottom",
              "offset": {
                  "x": 0.2,
                  "y": 0
              }
            },
            "start": 21.5,
            "length": 5,
            "transition": {
              "in": "revealSlow" 
            }
          },
          {
            "asset": {
              "type": "title",
              "text": "{{146517710__COL$B}}",
              "style": "chunk",
              "size": "x-large",
              "color": "#FFFFFF",
              "background": "#00FFFFFF",
              "position": "top",
              "offset": {
                  "x": 0,
                  "y": -0.1
              }
            },
            "start": 21.5,
            "length": 5,
            "transition": {
              "in": "revealFast" 
            }
          }
        ]
      },
      {
        "clips": [
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1VYuzq57y5QgdWHYtqEqsAK276dp0Ges_",
              "volume": 0
            },
            "start": 0,
            "length": 5
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=11ImT9J7ajO-0rteIuIX0rka-9yokWjfJ",
              "volume": 0
            },
            "start": 5,
            "length": 5.5
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1HTstH3aLAuC9SC2s79eFfYhyoxqwUbam",
              "volume": 0
            },
            "start": 10.5,
            "length": 3
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1DEoI1vFPBgv79RSZZOJcrMU9nlo0f6rp",
              "volume": 0
            },
            "start": 13.5,
            "length": 3
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1fYIQYBlvdOv_6W_avRi4HtWTnqQSQ-HH",
              "volume": 0
            },
            "start": 16.5,
            "length": 5
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1-LaI9Bq6_dCKkwiomy3BufZdFc3FTlRO",
              "volume": 0
            },
            "start": 21.5,
            "length": 5
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1oyVSSQxGqV19Nte3aNPK8_-CSWvO02mY",
              "volume": 0
            },
            "start": 26.5,
            "length": 11
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1Sp0GD5w5bA6Z5vF4l1xEnKJMQovrzLv2",
              "volume": 0
            },
            "start": 37.5,
            "length": 11
          },
          {
            "asset": {
              "type": "video",
              "src": "https://drive.google.com/uc?id=1EyhgW6LFdL7dJmAZf8CfhdMA323gPXvz",
              "volume": 0
            },
            "start": 48.5,
            "length": 3
          }
        ]
      }
    ],
    "fonts": [
      {
        "src": "https://shotstack-assets.s3-ap-southeast-2.amazonaws.com/fonts/AmaticSC-Bold.ttf"
      }
    ],
    "background": "#000000"
  },
  "output": {
    "format": "mp4",
    "size": {
        "width": 720,
        "height": 1280
    }
  }
}

Yes that is very pronounced. I’ve been able to reproduce the clicking noise now as well.

At the moment I cannot isolate the issue but I’ve added it as a bug to be looked into.

1 Like

+1 on the clicking noise. It appears at random for me.

I can render the same JSON multiple times in a row, and it appears maybe 25% of the time.

1 Like

Any updates on the clicking sounds?

Here’s another example. You can hear it right in the beginning…

Assuming the audio files are indeed stereo, it sounds to me like it’s coming out of the right side only?

Yes we’ve added this to our next sprint for investigation. We should have a fix ready in the next two weeks.

@jeff could you share the UUID of that particular video? The more examples we have that lead to this occurring the easier it’ll be to isolate the problem.

Sorry, should have included!

c9cd874b-e7ab-49a4-9652-60607b8f0c08

1 Like

Two more examples. The pop is less prominent, but still there in the same spot.

cbeca299-9fee-480b-b210-52fdd6cc8d07
c4220a8c-ef24-4f4b-ab16-d8535945abf9

EDIT: Here’s one more from today. I’m testing timing, so I rendered a series of very similar videos, all with the same parameters. 6 were fine and then #7 has a big scratch sound in the left speaker:

3b77f913-534e-47c9-ab9d-e1204ca172aa

I have been facing this error too in some videos. Unfortunately I no longer have the json or those URLs but will share it next time that I find it. I also figured out that the popping sound goes away if I added soundtrack/audio to the videos

1 Like
{
    "timeline": {
        "tracks": [
            {
                "clips": [
                    {
                        "asset": {
                            "type": "html",
                            "html": "<table><tr><td><p>The Finance Show</p></td></tr></table>",
                            "css": "tr{background:#ffffff} td{padding-right:30; padding-left:30;; padding-top:15;; padding-bottom:15} p{font-weight: bold; font-family: \"Montserrat\"; color: #000000; font-size:70px; text-align: left;}",
                            "position": "center", "width":1000
                        },
                        "start": 0,
                        "length": 2,
                        "position": "bottomRight",
                        "offset": {
                            "x": 0.18,
                            "y": -0.35
                        },
                        "transition": {
                            "in": "slideLeft"
                        }
                    }
                ]
            }
        ],
        "fonts": [
            {
                "src": "https://shotstack-assets.s3-ap-southeast-2.amazonaws.com/fonts/OpenSans-Regular.ttf"
            },
            {
                "src": "https://shotstack-assets.s3-ap-southeast-2.amazonaws.com/fonts/OpenSans-Bold.ttf"
            },
            {
                "src": "https://shotstack-assets.s3-ap-southeast-2.amazonaws.com/fonts/OpenSans-ExtraBold.ttf"
            }
        ]
    },
    "output": {
        "format": "mp4",
        "size": {
                "width": 1080,
                "height": 1920
            }
    }
}

Here’s the render ID of the file: ad9e40d6-a23f-43a9-8cfc-582b2cc8a52c

1 Like

We have deployed a fix that should address this issue. Please monitor your renders and if the issue is still occurring please reply here or reach out to us.

1 Like

The pops and clicks at the start of renders have started to appear again.

52936850-c2fc-4dba-a903-fd3408f0ce0d

1bebf1db-4d11-4cad-8d12-b93c68d125af

We’re taking a look at this now

Hi, any updates on this? Pretty crucial

Yes it’s being worked on currently. We expect to have a fix out by the end of the week.