[POSSIBLE BUG] Audio Sync when | Forum

I have the following setup for my audio:

When I start the audio level mic at zero (I moved the audio level mic to the root input so I could change it on the dashboard), the video is completely out of sync. Its not the delay in the smooth Scalar, since I tried without it and the problem is the same.

When I start with the audio level at some other value, like 0.4 or 0.6, (the video is in perfect sync).
Zero corresponds to -60 Level (which is Silence) and 1.0 corresponds to 0.0 Level

What I have not tested is at which value this happens and if a small amount of level, i.e., 0.01 is enough to avoid the issue. This is certainly not a CPU issue and happens consistently. (the cpu is low)

I also have another problem, but this is probably my mistake or lack of knowledge. Here is how I connect the audio: 1. to the video recorder, and 2. to an audio out (tried with and without an audio copy).

When I am not recording, I can hear the audio from the speakers just fine. When I start recording, the audio stops coming from the speakers. I need audio to monitor what is going on and send it wirelessly to the "talent." Any idea how to handle that?

buffos

To clarify.

On the picture above:

Audio Level Mic, is a dash component, with Min:-60 and Max:0
Studio Audio, is a mixer, with silence set to -60

When set like that, the video and the audio are out of sync. When I set the dash component range from -59 to 0, there is no problem at all.
My suspicion was that a division by zero caused that behavior, which is why I focused on the settings of the dash component as the source of the bug.

Of course the solution is trivial (changing the min value), but if you do not know that

I have no clue on the second issue though. I still cannot hear any sound when I record.

Eifert@Aximmetry

Hi,

I couldn't recreate the first issue, maybe I have to use a similar audio or video device. However, the next major Aximmetry release will have fundamental changes in how audio is handled and audio delay. And it will likely fix issues like this.

For the second issue, make sure you are recording with Realtime Frame Rate:
And other frame rates (fixed frame rates), will result in the audio output being terminated. Fixed frame rates are for post-process workflows and shouldn't be used with live input.
When a fixed frame rate is selected, Aximmetry will try to render frames as fast as it can, making the video and audio to be rendered faster or slower. So it doesn't make much sense to play any audio in cases like this.

Warmest regards,

Here is the "audio group" i use to produce the problem

https://drive.google.com/file/d/1SRHeBxzrPeDthTSmhooPBC7hjsfwp07_/view?usp=share_link

Changing the "dash range" from -60 to 0, to -59 to 0 eliminates the issue.

Hi Buffos,

I still couldn't reproduce it. I think it matters in some way what audio device you are using.
You should use the -59 to 0 workaround until the next major release of Aximmetry, where it is likely that it will be fixed, due to the new ways of how audio will be handled. Anyway, thank you for reporting it.

[POSSIBLE BUG] Audio Sync when starting with audio in silence.

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