I would like to mute audio sound in certain area of movie clip. I assume that I need to add markers first and select the area I would like to mute. I couldn't find in effects any trick to do this. How can I mute certain part of audio sound from movie clip in Kdenlive?

Great question, @sharper3! When viewing or answering an event live, initiating two way talk is optional. Having those controls there during the live event allows you to control audio toggles as you desire for the duration of the event. Once viewing the recording, this volume will be best controlled through your normal mobile device volume, as that will control your app or media volume.


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The code Snorre has provided in this thread. Doesn't work in Storyline 360. I compared the code output for a Storyline 2 and a Storyline 360 module and it seems that in Storyline 360 they don't use the HTML audio element anymore to load audio files. 


So the javasccripts that are on the forum don't work anymore. 


Has anyone an idea how audio is played in Storyline360? And if there is a possibility to mute audio like in Storyline 2?

This should work always because it's Storyline's player function. It basically "clicks" the button from your player and make the training mute. All other options are overkill and unnecessarily complicated.

As Jurgen stated indeed...


Require is a Javascript library that doesnot work in newer browsers or might be added to the core in the newest Storyline updates. So you need to ensure not using it directly.


var appState = require("helpers/appState");

appState.onToggleVolume();//mute

Why is this not fixed? This is a NECESSITY for certain scenes! I don't need the LIVE Stream to hear what going on in the background when I walk out of my study, nor should I have to mute all of my audio inputs manually for when I take a quick break.

It would be nice to automatically have certain scenes have no audio. For example, I don't want audio when I turn on my "I'll be right back" intermission scene, but currently I have to manually mute myself and the desktop audio. I'd like to be able to remove audio from the scene so when I turn that scene on , it is automatically muted. Or, if I could have a hotkey to mute the audio input/output, which would at least be a little easier than muting it manually from the app.

Now, whenever the media plays in the simulation you can hear little bits of a song. I really don't want to have to go back and re-do the entire simulation because of this. Is there a way to strip the audio or mute the audio prior to publishing, or even in the published version and just turn the volume option in the player off so the users can't turn it up?

There's no currently no built-in feature that allows you to edit out audio that's been added to a step-by-step or "Try it" simulation. However, and I'm not sure if this will work for you, you can insert the same recording as a single video and mute the video. Of course, you won't be able to use the same interactions in the video, but you will have the recording and the ability to mute or remove the audio.

Hi, maybe you need a third-party program to help you remove or mute audio from recorded video. As far as I know, there are some free ways that you may try to remove the audio. For example: you may use YouTube editor (www.youtube/editor) to do it by just uploading files, dragging files to video timeline and just slide the volume slider to mute the sound. Or if you have installed VLC on your computer, you can also use it to mute audio in video.

Is there anything that can be done to strip out the audio that was recorded while recording a demo? I don't want this incidental audio to be archived in my Storyline file. (By mistake I recorded audio while working with an SME. )


It also makes my Storyline file too large. (It does not play on the Slide-by-Slide demos but it's still there when you go to Slides-Record Screen)

Thanks for reaching out about this. While there isn't a built-in option to remove background noise from a screen recording, one idea can be to mute the recording's volume and re-record just the video. Here's how:

Thanks for the additional information. Since there isn't a way to remove the audio from the screen recordings, i'll let the community chime in on this one. There might be someone who has a solution they'd be willing to share that might work for you.

Please note that I would like to strip the audio from the source recordings. The audio is not needed (I created step-by-step recordings), and I would prefer not to save this audio as part of the source file.

p.s. I see that you can also click the speaker on the timeline, which is perhaps faster than going to the audio mixer. But my question is about a keyboard shortcut for this. I'd love to not have to reach for the mouse.

If anyone happens to have a clever way to toggle this command on one key (raither than having to map 2 commands, one for mute and one for unmute) then I'm all ears. I'm aware that I can map unmute to the shift-modified version of the key I map mute too......but even this seems....over-complicted.

On a slight aside, I have 'mute clip' mapped to my keyboard too (to quickly turn off video and audio clips in the timeline), but with that command I had to map 'unmute clip' to another key (i.e. it didn't toggle) which I found be slightly cumbersome.

Hm, I see that there might be specific situations in which toggling could be the better option for a given task. But in general I would rather say that the separate commands give you better control. To mute/unmute the whole timeline or a bunch of consecutive clips, toggling would be fine. But, for example, if you had a mixed series of clips, some already muted and some not, and you wanted to mute or unmute all of them, toggling would just invert the clips. The command wouldn't know whether to leave the unmuted clips unmuted or the muted clips muted.

I currently have an AudioContext object with an analyzer and source buffer. I'm working on adding a gain node to mute the audio, which is not currently working. When I click mute, the audio level changes (it actually gets louder), so I know the gain is affecting something.

I am recently working on QGC, and spend lots of time with the drone in the resting position trying to understand the settings and all. However, QGC keeps shouting loud audio alerts regarding losing connectivity to the device.

Once users wish to use the FMOD Studio integration they will need to (a) disable Unity audio from the Edit > Project Settings > Audio menu, and (b) manually set the iOS Audio Sessions to allow for background and/or interrupting audio. This is mentioned in the iOS Specific Starter Guide of the iOS API.

When viewing a live feed on the Yi Home app, the feed starts with the audio muted. This is fine as I can just unmute the audio and away I go, that is unless the feed buffers or needs to reconnected. When this happens and video feed reconnects, the audio is again muted.

Please can you advise if there is a planned update in the software to fix this issue. Having a monitor/camera with the sound switching to mute automatically, defeats the purpose for me and I now need to investigate different options.

Steve - I think Sarah means that when you view live image the default (as with multiple other brands of this type of tech) is muted. The sound will be recorded to the footage but I think she would like the audio enabled without having to touch the speaker icon on the live view.

Yeah, I should have pointed out that that doesn't work. The little grey icon appears with a speaker crossed out, but underneath it there's a "no entry" sign, which I assume indicates that this option is not available. I assume this is because in sound preferences, output is routed through my Firewire audio interface rather than "Internal speakers". Oh, and it says "the selected device has no output controls", and the volume slider and mute control are not available.

Is it possible to configure a auto mute on a specific audio channel while some specific clip is being played? And after the clip is stoped, the audio channel is auto unmuted?

This would be a great feature for me!

I play guitar with bass using boss oc5 on separate channel. When i record a clip with bass and play it, i dont want my bass audio channel at same time. So I need to press my oc5 pedal everytime to avoid double bass on song. If automute is possible, I can let my oc5 pedal ON all the time and saves me a lot of thinking during the song!

Currently, if play after record is on, play follow actions trigger when record follow actions do. You might want to move the mute to finish record and get rid of the play follow action. That way it will mute the hardware input when you finish recording..just before the loop playback starts.

@espiegel123 said:

Currently, if play after record is on, play follow actions trigger when record follow actions do. You might want to move the mute to finish record and get rid of the play follow action. That way it will mute the hardware input when you finish recording..just before the loop playback starts.

I tested the following routine, and it worked once, then my Echo devices starting acting up. My guess it is using the same command to pull up the camera, then trying to set the volume to 0 and got confused.

image12842778 158 KB

but even with this your echo device would remain muted.

You can setup a routine in alexa to do everything you want. When you set your actions go to device settings and you can mute or set the volume level to one or all of you Echo devices. Then, the very last action needs to be a voice command to the proper Echo device to show the camera. 17dc91bb1f

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