[Solved] Crackling Sound on iPad Package Viewer
Posted: Wed Sep 15, 2021 8:35 pm
Hi,
I'm having trouble with a crackling sound when viewing my tour specifically on an iPad using the package viewer app. My tour has a different ambient sound on each node, and I've simply set it to loop and to be a static sound. However when viewing the tour, after moving around the tour a bit a crackling sound can be heard both through the iPad speakers, and even with earphones/headphones.
Some observations:
- I don't think the sounds are related to the audio files. I'm using .mp3s with 44.1kHz sampling and 192kbps so nothing out of the ordinary. The files are not huge either, they're quite short so about 1MiB each or less. Furthermore, the crackling sound does not happen at the same place in the audio.
- The crackling sound will start manifesting after viewing the tour for a while. When you've moved through a few nodes, the sound begins, and then it gets progressively worse over time. Even when you move to a node that has a sound that was not 'crackly' before, the crackling will be there too.
- I tried staying on the initial node for a long time, without moving and the crackling still happens.
- Once the crackling starts, it happens constantly, regardless of node you're on or the sound that's being played.
- The crackling starts intermittently and softly at first, but progressively gets louder and more frequent over time. This does not change between sounds/nodes as well.
- When the crackling gets bad, the sounds also often stop for many seconds before playing again.
- When playing the tour on my PC (Windows machine, using Chrome to view), this has never happened.
I have a few guesses but I'm not a very technical person so it's really just guesses:
- Could this be a memory problem, perhaps the tour is not unloading sounds as the viewer moves through the various nodes?
- Is there some issue with how the package viewer handles sound on iOS?
Is anyone else having this issue, and are there any work-arounds? I delivered the tour to my client as a package to view with the viewer since the tour is big and they only want to use it offline. Is there any alternative way to do this that might eliminate any potential issue with the package viewer app? Thank you!
For reference, I've attached a recording of the crackling sounds. The sound being played in the tour are rainforest sounds, so what you're hearing are the insects.
I'm having trouble with a crackling sound when viewing my tour specifically on an iPad using the package viewer app. My tour has a different ambient sound on each node, and I've simply set it to loop and to be a static sound. However when viewing the tour, after moving around the tour a bit a crackling sound can be heard both through the iPad speakers, and even with earphones/headphones.
Some observations:
- I don't think the sounds are related to the audio files. I'm using .mp3s with 44.1kHz sampling and 192kbps so nothing out of the ordinary. The files are not huge either, they're quite short so about 1MiB each or less. Furthermore, the crackling sound does not happen at the same place in the audio.
- The crackling sound will start manifesting after viewing the tour for a while. When you've moved through a few nodes, the sound begins, and then it gets progressively worse over time. Even when you move to a node that has a sound that was not 'crackly' before, the crackling will be there too.
- I tried staying on the initial node for a long time, without moving and the crackling still happens.
- Once the crackling starts, it happens constantly, regardless of node you're on or the sound that's being played.
- The crackling starts intermittently and softly at first, but progressively gets louder and more frequent over time. This does not change between sounds/nodes as well.
- When the crackling gets bad, the sounds also often stop for many seconds before playing again.
- When playing the tour on my PC (Windows machine, using Chrome to view), this has never happened.
I have a few guesses but I'm not a very technical person so it's really just guesses:
- Could this be a memory problem, perhaps the tour is not unloading sounds as the viewer moves through the various nodes?
- Is there some issue with how the package viewer handles sound on iOS?
Is anyone else having this issue, and are there any work-arounds? I delivered the tour to my client as a package to view with the viewer since the tour is big and they only want to use it offline. Is there any alternative way to do this that might eliminate any potential issue with the package viewer app? Thank you!
For reference, I've attached a recording of the crackling sounds. The sound being played in the tour are rainforest sounds, so what you're hearing are the insects.