[Updated] Audio Improvement for Effective Online Communication
Audio Improvement for Effective Online Communication
How To Remove Background Noise from Your Youtube Video
Richard Bennett
Mar 27, 2024• Proven solutions
There are few things more annoying to viewers on YouTube than background noise. It is distracting and makes it difficult to engage with the content of a video. If there is noticeable background noise in a video, even a small noise like the faint hum of a computer fan, then it will increase the chances of viewers clicking away. The good news is that these kinds of noises are fairly easy to get rid of.
In order to remove background noise from your video clip, you will first need to create an MP3 of your audio. Then you will be able to take out the unwanted noise in a free program called Audacity and reintroduce your corrected audio into your Filmora project. This article will walk you through the audio editing process.
How To Remove Background Noise from Your Youtube Video
Background Noise Removal
Open up Filmora, import your clip, and drag it into the timeline. Then, play your clip and listen for background noise. If you hear a noise that you wish to remove move on to the first step of background noise removal .
1. Creating An MP3
If you do not already have it you will need to download VLC Media Player from videoLAN.org. VLC is a completely free media player that can play almost any type of file, is great for converting files, and can even be used as a screen recorder. If you consume a lot of media online then chances are you already have VLC. You could also use is Free Video to MP3 Converter by DVDVideoSoft.
If you choose to use VLC, open it up and select Convert/Save under Media. Select your video in the Open Media window that pops up. After you click Convert/Save you will be able to choose your format, in this case, MP3, under Save as type.
2. Removing Background Noise in Audacity
You can download Audacity for free at Audacityteam.org.
Once you have Audacity use it to open your MP3. Then, find a section of your audio that is silent aside from your background noise and highlight it by clicking and dragging. The idea is to point out to the program exactly what sound is a problem for you so it knows what to remove. If you have trouble finding a significant stretch of background noise that does not also include dialogue remember to record a pause before or after the content of your video next time you film.
With your section of background noise highlighted, go to Effect and then Noise Reduction. Then, click on Get Noise Profile. After that, you will select your entire audio timeline before going back to Noise Reduction under Effect. This time click on OK (the default settings are the best in most situations so you do not need to worry about changing them).
Audacity will remove everything that sounds like the sound profile, eliminating your background noise. Sometimes this method will also dull your dialogue, which can be fixed by selecting your entire track and then going to Effect and Amplify. Increasing amplification will fix any muffling of your audio.
3. Syncing in Filmora
Export your corrected MP3 from Audacity and import it into Filmora. Then, drag it into your music track. Syncing your audio should not be difficult, but you can always use your original audio to help you line it up properly if you need to. Just look for a significant spike in your audio waves in both your MP3 and the original audio and make sure they are right on top of each other.
Then, since you no longer need your original audio, you can delete it. Right-click on your clip and select Audio Detach. Once your audio is on its own track just select it and click delete.
Covering Background Noise
Sometimes background noise is so minor that you do not want to bother going through the process of removing it. In these situations, it may be easier to cover up your background noise than to remove it. This is as simple as dragging a song into the music track of your timeline and adjusting its volume so it is not loud enough to draw attention away from your dialogue. Chances are you want to add background music anyways and this is not even an extra step.
Richard Bennett
Richard Bennett is a writer and a lover of all things video.
Follow @Richard Bennett
Richard Bennett
Mar 27, 2024• Proven solutions
There are few things more annoying to viewers on YouTube than background noise. It is distracting and makes it difficult to engage with the content of a video. If there is noticeable background noise in a video, even a small noise like the faint hum of a computer fan, then it will increase the chances of viewers clicking away. The good news is that these kinds of noises are fairly easy to get rid of.
In order to remove background noise from your video clip, you will first need to create an MP3 of your audio. Then you will be able to take out the unwanted noise in a free program called Audacity and reintroduce your corrected audio into your Filmora project. This article will walk you through the audio editing process.
How To Remove Background Noise from Your Youtube Video
Background Noise Removal
Open up Filmora, import your clip, and drag it into the timeline. Then, play your clip and listen for background noise. If you hear a noise that you wish to remove move on to the first step of background noise removal .
1. Creating An MP3
If you do not already have it you will need to download VLC Media Player from videoLAN.org. VLC is a completely free media player that can play almost any type of file, is great for converting files, and can even be used as a screen recorder. If you consume a lot of media online then chances are you already have VLC. You could also use is Free Video to MP3 Converter by DVDVideoSoft.
If you choose to use VLC, open it up and select Convert/Save under Media. Select your video in the Open Media window that pops up. After you click Convert/Save you will be able to choose your format, in this case, MP3, under Save as type.
2. Removing Background Noise in Audacity
You can download Audacity for free at Audacityteam.org.
Once you have Audacity use it to open your MP3. Then, find a section of your audio that is silent aside from your background noise and highlight it by clicking and dragging. The idea is to point out to the program exactly what sound is a problem for you so it knows what to remove. If you have trouble finding a significant stretch of background noise that does not also include dialogue remember to record a pause before or after the content of your video next time you film.
With your section of background noise highlighted, go to Effect and then Noise Reduction. Then, click on Get Noise Profile. After that, you will select your entire audio timeline before going back to Noise Reduction under Effect. This time click on OK (the default settings are the best in most situations so you do not need to worry about changing them).
Audacity will remove everything that sounds like the sound profile, eliminating your background noise. Sometimes this method will also dull your dialogue, which can be fixed by selecting your entire track and then going to Effect and Amplify. Increasing amplification will fix any muffling of your audio.
3. Syncing in Filmora
Export your corrected MP3 from Audacity and import it into Filmora. Then, drag it into your music track. Syncing your audio should not be difficult, but you can always use your original audio to help you line it up properly if you need to. Just look for a significant spike in your audio waves in both your MP3 and the original audio and make sure they are right on top of each other.
Then, since you no longer need your original audio, you can delete it. Right-click on your clip and select Audio Detach. Once your audio is on its own track just select it and click delete.
Covering Background Noise
Sometimes background noise is so minor that you do not want to bother going through the process of removing it. In these situations, it may be easier to cover up your background noise than to remove it. This is as simple as dragging a song into the music track of your timeline and adjusting its volume so it is not loud enough to draw attention away from your dialogue. Chances are you want to add background music anyways and this is not even an extra step.
Richard Bennett
Richard Bennett is a writer and a lover of all things video.
Follow @Richard Bennett
Richard Bennett
Mar 27, 2024• Proven solutions
There are few things more annoying to viewers on YouTube than background noise. It is distracting and makes it difficult to engage with the content of a video. If there is noticeable background noise in a video, even a small noise like the faint hum of a computer fan, then it will increase the chances of viewers clicking away. The good news is that these kinds of noises are fairly easy to get rid of.
In order to remove background noise from your video clip, you will first need to create an MP3 of your audio. Then you will be able to take out the unwanted noise in a free program called Audacity and reintroduce your corrected audio into your Filmora project. This article will walk you through the audio editing process.
How To Remove Background Noise from Your Youtube Video
Background Noise Removal
Open up Filmora, import your clip, and drag it into the timeline. Then, play your clip and listen for background noise. If you hear a noise that you wish to remove move on to the first step of background noise removal .
1. Creating An MP3
If you do not already have it you will need to download VLC Media Player from videoLAN.org. VLC is a completely free media player that can play almost any type of file, is great for converting files, and can even be used as a screen recorder. If you consume a lot of media online then chances are you already have VLC. You could also use is Free Video to MP3 Converter by DVDVideoSoft.
If you choose to use VLC, open it up and select Convert/Save under Media. Select your video in the Open Media window that pops up. After you click Convert/Save you will be able to choose your format, in this case, MP3, under Save as type.
2. Removing Background Noise in Audacity
You can download Audacity for free at Audacityteam.org.
Once you have Audacity use it to open your MP3. Then, find a section of your audio that is silent aside from your background noise and highlight it by clicking and dragging. The idea is to point out to the program exactly what sound is a problem for you so it knows what to remove. If you have trouble finding a significant stretch of background noise that does not also include dialogue remember to record a pause before or after the content of your video next time you film.
With your section of background noise highlighted, go to Effect and then Noise Reduction. Then, click on Get Noise Profile. After that, you will select your entire audio timeline before going back to Noise Reduction under Effect. This time click on OK (the default settings are the best in most situations so you do not need to worry about changing them).
Audacity will remove everything that sounds like the sound profile, eliminating your background noise. Sometimes this method will also dull your dialogue, which can be fixed by selecting your entire track and then going to Effect and Amplify. Increasing amplification will fix any muffling of your audio.
3. Syncing in Filmora
Export your corrected MP3 from Audacity and import it into Filmora. Then, drag it into your music track. Syncing your audio should not be difficult, but you can always use your original audio to help you line it up properly if you need to. Just look for a significant spike in your audio waves in both your MP3 and the original audio and make sure they are right on top of each other.
Then, since you no longer need your original audio, you can delete it. Right-click on your clip and select Audio Detach. Once your audio is on its own track just select it and click delete.
Covering Background Noise
Sometimes background noise is so minor that you do not want to bother going through the process of removing it. In these situations, it may be easier to cover up your background noise than to remove it. This is as simple as dragging a song into the music track of your timeline and adjusting its volume so it is not loud enough to draw attention away from your dialogue. Chances are you want to add background music anyways and this is not even an extra step.
Richard Bennett
Richard Bennett is a writer and a lover of all things video.
Follow @Richard Bennett
Richard Bennett
Mar 27, 2024• Proven solutions
There are few things more annoying to viewers on YouTube than background noise. It is distracting and makes it difficult to engage with the content of a video. If there is noticeable background noise in a video, even a small noise like the faint hum of a computer fan, then it will increase the chances of viewers clicking away. The good news is that these kinds of noises are fairly easy to get rid of.
In order to remove background noise from your video clip, you will first need to create an MP3 of your audio. Then you will be able to take out the unwanted noise in a free program called Audacity and reintroduce your corrected audio into your Filmora project. This article will walk you through the audio editing process.
How To Remove Background Noise from Your Youtube Video
Background Noise Removal
Open up Filmora, import your clip, and drag it into the timeline. Then, play your clip and listen for background noise. If you hear a noise that you wish to remove move on to the first step of background noise removal .
1. Creating An MP3
If you do not already have it you will need to download VLC Media Player from videoLAN.org. VLC is a completely free media player that can play almost any type of file, is great for converting files, and can even be used as a screen recorder. If you consume a lot of media online then chances are you already have VLC. You could also use is Free Video to MP3 Converter by DVDVideoSoft.
If you choose to use VLC, open it up and select Convert/Save under Media. Select your video in the Open Media window that pops up. After you click Convert/Save you will be able to choose your format, in this case, MP3, under Save as type.
2. Removing Background Noise in Audacity
You can download Audacity for free at Audacityteam.org.
Once you have Audacity use it to open your MP3. Then, find a section of your audio that is silent aside from your background noise and highlight it by clicking and dragging. The idea is to point out to the program exactly what sound is a problem for you so it knows what to remove. If you have trouble finding a significant stretch of background noise that does not also include dialogue remember to record a pause before or after the content of your video next time you film.
With your section of background noise highlighted, go to Effect and then Noise Reduction. Then, click on Get Noise Profile. After that, you will select your entire audio timeline before going back to Noise Reduction under Effect. This time click on OK (the default settings are the best in most situations so you do not need to worry about changing them).
Audacity will remove everything that sounds like the sound profile, eliminating your background noise. Sometimes this method will also dull your dialogue, which can be fixed by selecting your entire track and then going to Effect and Amplify. Increasing amplification will fix any muffling of your audio.
3. Syncing in Filmora
Export your corrected MP3 from Audacity and import it into Filmora. Then, drag it into your music track. Syncing your audio should not be difficult, but you can always use your original audio to help you line it up properly if you need to. Just look for a significant spike in your audio waves in both your MP3 and the original audio and make sure they are right on top of each other.
Then, since you no longer need your original audio, you can delete it. Right-click on your clip and select Audio Detach. Once your audio is on its own track just select it and click delete.
Covering Background Noise
Sometimes background noise is so minor that you do not want to bother going through the process of removing it. In these situations, it may be easier to cover up your background noise than to remove it. This is as simple as dragging a song into the music track of your timeline and adjusting its volume so it is not loud enough to draw attention away from your dialogue. Chances are you want to add background music anyways and this is not even an extra step.
Richard Bennett
Richard Bennett is a writer and a lover of all things video.
Follow @Richard Bennett
Enhancing YouTube Content via FinalCut Pro Techniques
How to Edit YouTube Videos in Final Cut Pro
Richard Bennett
Mar 27, 2024• Proven solutions
With its user friendly interface and versatile features, Fincal Cut Pro is definitely one of the best choices for making videos for Mac users. Using it isn’t that hard, but it’s definitely not a walk in the park, so we’ve taken the liberty to provide you with a comprehensive yet concise guide on how to edit YouTube videos with Final Cut Pro.
Even though FCP is good software, there’s no denying that it’s pretty pricy and a little bit complicated for most beginners. Wondershare Filmora for Mac is definitely better alternatives for Final Cut Pro. It’s a lot more user-friendly and requires no previous experience in video editing. With Wondershare Filmora, you can ignite your YouTube videos with over 300 effects like Fashion, Beauty, Block Buster, Travel, etc.
How to Edit YouTube Videos in Final Cut Pro
In this section, we are going to take a quick look at the steps that you need to take in order to properly edit YouTube videos in Final Cut Pro. Without any further ado, let’s take a look.
Step 1: Importing the video clip into FCP
This is, of course, the first thing that you need to do. Regardless of whether the original footage was taken by your smart phone, taken from the Internet or you’ve left it over from some past event that’s long overdue, you can easily import it into the FCP in order to edit it. FCP supports a variety of different formats, so it’s a good idea to try and import the video even if you are not quite sure about its extension. In order to do so, open the program, go to the File button, click on Import and select the file or the folder. This is going to get you to a regular finder window which would enable you to pick the clip that you want to do. If it’s not highlighted or you aren’t able to select it, the software doesn’t support it, and it’s not compatible.
Keep in mind that if you want to import videos which have been published already, you can download them directly from the channel as MP4 files. If you want to store videos from different channels, you can use the Wondershare Video Converter Ultimate in order to get them converted and stored on your computer in a format that is supported by FCP.
Step 2: Edit YouTube Videos in Final Cut Pro
That’s the fun part. There are a few things that you can do with Final Cut Pro, and they are all quite professional.
- First, you can sync an audio track with your video as the DSLR cameras usually have terrible quality of the sound. This is why you want to get the audio recorded separately. The only thing you need to do is select the audio clip and click on the Synchronize Clips, and you are good to go.
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- Furthermore, you can do proper color balancing with the program quickly and incredibly easy. Go on Modify and then click on Balance Color and the software is going to take care of the rest on its own.
- You can also create previews when the video ends. In order to do so, you need to import your main clip, select a solid background color and place the preview video above it. You will then be able to trim and edit it conveniently. Adjust the scale and the position and you are good to go. Afterwards, you can also apply annotation on top of the preview.
Step 3: Upload to YouTube from the software directly
This one is rather easy. Here is the sequence that you need to do. Go to File -> Share -> Master File -> Setting -> File -> Share -> YouTube. That’s basically it. Then you need to sign in to your YouTube account and simply click on Next -> Publish and the entire thing is done. That’s all you need to do in order to quickly and conveniently upload your video to YouTube directly from the FCP.
Check this video tutorial to see how YouTube creators edit their YouTubes videos with Final Cut Pro
Richard Bennett
Richard Bennett is a writer and a lover of all things video.
Follow @Richard Bennett
Richard Bennett
Mar 27, 2024• Proven solutions
With its user friendly interface and versatile features, Fincal Cut Pro is definitely one of the best choices for making videos for Mac users. Using it isn’t that hard, but it’s definitely not a walk in the park, so we’ve taken the liberty to provide you with a comprehensive yet concise guide on how to edit YouTube videos with Final Cut Pro.
Even though FCP is good software, there’s no denying that it’s pretty pricy and a little bit complicated for most beginners. Wondershare Filmora for Mac is definitely better alternatives for Final Cut Pro. It’s a lot more user-friendly and requires no previous experience in video editing. With Wondershare Filmora, you can ignite your YouTube videos with over 300 effects like Fashion, Beauty, Block Buster, Travel, etc.
How to Edit YouTube Videos in Final Cut Pro
In this section, we are going to take a quick look at the steps that you need to take in order to properly edit YouTube videos in Final Cut Pro. Without any further ado, let’s take a look.
Step 1: Importing the video clip into FCP
This is, of course, the first thing that you need to do. Regardless of whether the original footage was taken by your smart phone, taken from the Internet or you’ve left it over from some past event that’s long overdue, you can easily import it into the FCP in order to edit it. FCP supports a variety of different formats, so it’s a good idea to try and import the video even if you are not quite sure about its extension. In order to do so, open the program, go to the File button, click on Import and select the file or the folder. This is going to get you to a regular finder window which would enable you to pick the clip that you want to do. If it’s not highlighted or you aren’t able to select it, the software doesn’t support it, and it’s not compatible.
Keep in mind that if you want to import videos which have been published already, you can download them directly from the channel as MP4 files. If you want to store videos from different channels, you can use the Wondershare Video Converter Ultimate in order to get them converted and stored on your computer in a format that is supported by FCP.
Step 2: Edit YouTube Videos in Final Cut Pro
That’s the fun part. There are a few things that you can do with Final Cut Pro, and they are all quite professional.
- First, you can sync an audio track with your video as the DSLR cameras usually have terrible quality of the sound. This is why you want to get the audio recorded separately. The only thing you need to do is select the audio clip and click on the Synchronize Clips, and you are good to go.
- Furthermore, you can do proper color balancing with the program quickly and incredibly easy. Go on Modify and then click on Balance Color and the software is going to take care of the rest on its own.
- You can also create previews when the video ends. In order to do so, you need to import your main clip, select a solid background color and place the preview video above it. You will then be able to trim and edit it conveniently. Adjust the scale and the position and you are good to go. Afterwards, you can also apply annotation on top of the preview.
Step 3: Upload to YouTube from the software directly
This one is rather easy. Here is the sequence that you need to do. Go to File -> Share -> Master File -> Setting -> File -> Share -> YouTube. That’s basically it. Then you need to sign in to your YouTube account and simply click on Next -> Publish and the entire thing is done. That’s all you need to do in order to quickly and conveniently upload your video to YouTube directly from the FCP.
Check this video tutorial to see how YouTube creators edit their YouTubes videos with Final Cut Pro
Richard Bennett
Richard Bennett is a writer and a lover of all things video.
Follow @Richard Bennett
Richard Bennett
Mar 27, 2024• Proven solutions
With its user friendly interface and versatile features, Fincal Cut Pro is definitely one of the best choices for making videos for Mac users. Using it isn’t that hard, but it’s definitely not a walk in the park, so we’ve taken the liberty to provide you with a comprehensive yet concise guide on how to edit YouTube videos with Final Cut Pro.
Even though FCP is good software, there’s no denying that it’s pretty pricy and a little bit complicated for most beginners. Wondershare Filmora for Mac is definitely better alternatives for Final Cut Pro. It’s a lot more user-friendly and requires no previous experience in video editing. With Wondershare Filmora, you can ignite your YouTube videos with over 300 effects like Fashion, Beauty, Block Buster, Travel, etc.
How to Edit YouTube Videos in Final Cut Pro
In this section, we are going to take a quick look at the steps that you need to take in order to properly edit YouTube videos in Final Cut Pro. Without any further ado, let’s take a look.
Step 1: Importing the video clip into FCP
This is, of course, the first thing that you need to do. Regardless of whether the original footage was taken by your smart phone, taken from the Internet or you’ve left it over from some past event that’s long overdue, you can easily import it into the FCP in order to edit it. FCP supports a variety of different formats, so it’s a good idea to try and import the video even if you are not quite sure about its extension. In order to do so, open the program, go to the File button, click on Import and select the file or the folder. This is going to get you to a regular finder window which would enable you to pick the clip that you want to do. If it’s not highlighted or you aren’t able to select it, the software doesn’t support it, and it’s not compatible.
Keep in mind that if you want to import videos which have been published already, you can download them directly from the channel as MP4 files. If you want to store videos from different channels, you can use the Wondershare Video Converter Ultimate in order to get them converted and stored on your computer in a format that is supported by FCP.
Step 2: Edit YouTube Videos in Final Cut Pro
That’s the fun part. There are a few things that you can do with Final Cut Pro, and they are all quite professional.
- First, you can sync an audio track with your video as the DSLR cameras usually have terrible quality of the sound. This is why you want to get the audio recorded separately. The only thing you need to do is select the audio clip and click on the Synchronize Clips, and you are good to go.
- Furthermore, you can do proper color balancing with the program quickly and incredibly easy. Go on Modify and then click on Balance Color and the software is going to take care of the rest on its own.
- You can also create previews when the video ends. In order to do so, you need to import your main clip, select a solid background color and place the preview video above it. You will then be able to trim and edit it conveniently. Adjust the scale and the position and you are good to go. Afterwards, you can also apply annotation on top of the preview.
Step 3: Upload to YouTube from the software directly
This one is rather easy. Here is the sequence that you need to do. Go to File -> Share -> Master File -> Setting -> File -> Share -> YouTube. That’s basically it. Then you need to sign in to your YouTube account and simply click on Next -> Publish and the entire thing is done. That’s all you need to do in order to quickly and conveniently upload your video to YouTube directly from the FCP.
Check this video tutorial to see how YouTube creators edit their YouTubes videos with Final Cut Pro
Richard Bennett
Richard Bennett is a writer and a lover of all things video.
Follow @Richard Bennett
Richard Bennett
Mar 27, 2024• Proven solutions
With its user friendly interface and versatile features, Fincal Cut Pro is definitely one of the best choices for making videos for Mac users. Using it isn’t that hard, but it’s definitely not a walk in the park, so we’ve taken the liberty to provide you with a comprehensive yet concise guide on how to edit YouTube videos with Final Cut Pro.
Even though FCP is good software, there’s no denying that it’s pretty pricy and a little bit complicated for most beginners. Wondershare Filmora for Mac is definitely better alternatives for Final Cut Pro. It’s a lot more user-friendly and requires no previous experience in video editing. With Wondershare Filmora, you can ignite your YouTube videos with over 300 effects like Fashion, Beauty, Block Buster, Travel, etc.
How to Edit YouTube Videos in Final Cut Pro
In this section, we are going to take a quick look at the steps that you need to take in order to properly edit YouTube videos in Final Cut Pro. Without any further ado, let’s take a look.
Step 1: Importing the video clip into FCP
This is, of course, the first thing that you need to do. Regardless of whether the original footage was taken by your smart phone, taken from the Internet or you’ve left it over from some past event that’s long overdue, you can easily import it into the FCP in order to edit it. FCP supports a variety of different formats, so it’s a good idea to try and import the video even if you are not quite sure about its extension. In order to do so, open the program, go to the File button, click on Import and select the file or the folder. This is going to get you to a regular finder window which would enable you to pick the clip that you want to do. If it’s not highlighted or you aren’t able to select it, the software doesn’t support it, and it’s not compatible.
Keep in mind that if you want to import videos which have been published already, you can download them directly from the channel as MP4 files. If you want to store videos from different channels, you can use the Wondershare Video Converter Ultimate in order to get them converted and stored on your computer in a format that is supported by FCP.
Step 2: Edit YouTube Videos in Final Cut Pro
That’s the fun part. There are a few things that you can do with Final Cut Pro, and they are all quite professional.
- First, you can sync an audio track with your video as the DSLR cameras usually have terrible quality of the sound. This is why you want to get the audio recorded separately. The only thing you need to do is select the audio clip and click on the Synchronize Clips, and you are good to go.
- Furthermore, you can do proper color balancing with the program quickly and incredibly easy. Go on Modify and then click on Balance Color and the software is going to take care of the rest on its own.
- You can also create previews when the video ends. In order to do so, you need to import your main clip, select a solid background color and place the preview video above it. You will then be able to trim and edit it conveniently. Adjust the scale and the position and you are good to go. Afterwards, you can also apply annotation on top of the preview.
Step 3: Upload to YouTube from the software directly
This one is rather easy. Here is the sequence that you need to do. Go to File -> Share -> Master File -> Setting -> File -> Share -> YouTube. That’s basically it. Then you need to sign in to your YouTube account and simply click on Next -> Publish and the entire thing is done. That’s all you need to do in order to quickly and conveniently upload your video to YouTube directly from the FCP.
Check this video tutorial to see how YouTube creators edit their YouTubes videos with Final Cut Pro
Richard Bennett
Richard Bennett is a writer and a lover of all things video.
Follow @Richard Bennett
- Title: [Updated] Audio Improvement for Effective Online Communication
- Author: Steven
- Created at : 2024-08-28 14:17:57
- Updated at : 2024-08-29 14:17:57
- Link: https://youtube-clips.techidaily.com/updated-audio-improvement-for-effective-online-communication/
- License: This work is licensed under CC BY-NC-SA 4.0.