FilmoraPro Video Editor
The Easiest way of Editing Audio
FilmoraPro gives you the option to add various audio tracks on the timeline. It is of much importance when you need to create a soundtrack for the videos carrying sound effects, dialogues, and music. To get detailed information about tracks in FilmoraPro, you can visit the Audio and Video tracks page.
Audio Mixer and Related Terms
The traditional interface depicted by the Audio Mixer is to ensure the perfect adjustment of the settings and to provide the smooth sound quality without clipping.
Whenever the audio output gets extended beyond the playback range, then there is peaking or audio clipping. It gets reflected by the red color on the audio meters, and it might impact the soundtrack quality and digital distortion to a great extent.
During the playback, the green bars under the Audio Mixer Panel are for the Audio Peaks. Also, the green bar reflects when you drag the playhead. Every the audio channel gets depicted by a separate bar. Peak indicators or thick white lines occur whenever the sound of the channel approaches the peak and is quite helpful to identify unwanted clippings if any.
If there is any audio clipping, then the peak volume turns to red on a channel. Thus you can find out quickly if the mixture of the sound is large enough to distort the sound. To avoid any clipping, you can move towards the slowing down of the master volume for the tracks of the mix that might be exceeding from the playback range. When you are over with the audio setting, and still there are the red colored clipped peaks, remove them by starting the new playback or move the playhead.
The peak meter reflects the amplitude for the sound and is proportional to the volume. Usually, the high amplitude causes a loud noise, but other factors like frequency also affect the loudness level and its impact on sound quality.
- Levels Option: On the left side of the Audio Mixer panel, there is a Fader for each meter to assist you to adjust the Audio of the track under the range of -60 to +12. The current changes in the settings get displayed under the Fader.
- Balance Option: Audio mixer tracks are of stereotypes that have left as well as right channels. To make a balance between the left/right channels, you can use the Audio balance available under each of the meter. The default value of the Audio balance is set at zero at the centered position so that both channels have an equal audio level. By shifting the balance meter in one direction, you will increase the signal along that side while reducing the signs on the other side. This option can be applied when the objects that are available at one side of the video, then the sound can get shifted to that direction of the screen.
- Mute and Solo: Mute and Solo buttons are used to define which track needs to be audible.
- Mute – This option made the track remain silent until it is disabled.
- Solo – The track to which Solo button is ‘On’ will be audible, while other records will remain silent.
- Enable Keyframing – Next, to the Solo button, there is given a circle, by clicking on it will enable the keyframing for the track level. If you activate this option then can easily adjust the standards for that track with time by the given Faders on Audio Mixer Panel.
- Master Track: Once all tracks get mixed, the last available to the right side of the Audio Mixer Panel with the Master Track, reflects the whole levels of the mixture. Its readout is similar to that of the Meters Panel, but the Fader that is available next to master track will bring the controlling sound levels quite comfortable with it.
What do you understand by Audio Meters?
Though by default this Panel is not directly linked to the application window, using the View menu, you can turn it On or Off under the Panel’s submenu. With it, you can check the left and right audio levels of the channels. Then accordingly manage the scale from the portion of the track, which shows the high standard that might cause clipping.
Audio clipping may distort the sound quality, and it occurs whenever the level of the output extended beyond a certain point. Thus it is better to avoid it in well advanced to prevent such issue.
When you are dragging playback, or during the playback across the timeline, the green colored bars represent the peak levels of the left and right channels. You will see the left/right channels separately. Above the bars, you will see thin white-colored lines for the peak volumes of every channel. During the playback, these peak values keep on changing thus make it easy to find out if any part crossing the playback range.
Whenever there occurs clipping the top end position of the bar gets affected and turn to red color, which reflects that the volume level is pretty high. This way you can find it out in well advance that which particular portion of the mix is at an alarming level, loud and that might cause sound deformation during playback time. At this point, if you reduce the master volume, then the clipping can be avoided. The red-colored clipped peaks remain intact until you start the playback or move the playhead.
The peak meter does not proportionate to that of volume as it is for the sound amplitude. Usually, the loud sound produces high amplitude, but the frequency is also one of the factors that affect the loudness level.
1. Understanding the Meter Scale and its processing
Meter scale represents full decibel scale where the maximum audio level before it gets clipping represented by 0 dBFS. It is for the maximum level of Audio before clipping occurs. The Peak Bars reflected by Spectral color, the ranges from yellow (low audio level of volume, for example -90 dBFS) to red color (for high volume level that is 0 to -3 dBFS). For below -6 dBFS audio levels, the bar is a green color that reflects the safe sound level. However, if it rises above -6 dBFS, it turns to yellow, that indicates it is going to approach the maximum level. If the level crossed the value of more than 0 dBFS and turned red, then it is the indication that the signal going to get clipped. In this case, adjusting the level of the Audio to the acceptable level for the channel is the best way to avoid getting cut.
On a meter scale, the maximum level is +6 dBFS, thus with it, you can gauge how far it reaches beyond the level of 0 dBFS during the peaking. Therefore, if it reaches +3 dBFS, then you need to reduce the level up to 3 decibels to go below 0 dBFS the required accepted range.
2. Static VS Dynamic Peaks explained
If you right-click to the Audio Meter Panel, it will help you to activate Hold Peaks. Hence, you will be able to stop the lowering of white line peak indicators during the playback time. This way, at the endpoint of the playback, you would be able to check and read the maximum level for any particular point under the timeline.
Dynamic peaks, used by the audio meters, get updated every two-second of a time. If at that point the level of peak changes, then the white line indicators will either fall or move upside to that current level of the peak.
3. What are Waveforms?
Both Trimmer and Editor Panel have reflected waveforms for the audio files. The visual audio representation makes it easier for the positioning of video clips based on sound content.
Waveforms for the audio files are visible only if the default size of the audio track on the timeline gets set to Medium, Large, and Extra large. But if the size set is small, then these waveforms are not visible. To know how to optimize the audio tracks under FilmoraPro, visit the Audio and Video Tracks page for this manual.
4. Learning about Adjusting the Volume
As per the clip progress, the clip volume can get adjusted. It will make you build suspense in introducing the song gradually. You can change the audio volume from the timeline or by visiting the Controls Panel. Every audio clip added to the schedule has a volume bar that you can use to change the volume by dragging up or down. But, dragging the volume bar will make changes to the whole clip without giving any editing options. If you add the keyframes by pressing CTRL or CMD(Mac), then changing the volume bar will provide you with the opportunity to modify the volume for different clip sections.
Or else, you can adjust the keyframe option under the Controls Panel, by pressing on keyframe button available to the left direction of Volume Level Property.
Once you have chosen the audio property under Controls Panel, you can apply keyframes navigation from the timeline to jump between different keyframes.
How to create Audio Effects?
Various audio effects like the Audio Reverse or Compressor exist under the Audio folder available in the Effects panel. You can utilize them to modify the video soundtrack. You need to drag the required effect and drop to a clip to apply its effects. Once the impact gets added, you can modify the properties from the Control panel.
Process of Syncing Video and Audio
It is quite common for industry professionals to record audio/video separately. But by using the FilmoraPro, you can quickly sync such audio and video files with its Sync option under the Media panel. To know more about this process, visit Sync Video and Audio page