Audio panel

Silverstack offers audio playback of external or embedded audio for preview and quality check. Audio can also be transcoded in dailies and for editorial, including stereo mixdown or original audio tracks.

This article explains the audio panel which is the main interface for audio processing in Silverstack. It is also related to the audio sync wizard that is used for automatic audio syncing. If you want to learn more about supported audio formats, please view the article about assets in Silverstack. Below you will find all audio settings that are available in the audio panel, which can be opened by a simple click on the Audio & Color button in the top right corner of the main screen.

Audio panel in detail#

Silverstack’s audio panel

The audio tracks are grouped into three (expandable) sections:

Master
Intern
Extern

Intern vs. Extern
These groups represent the internally vs. externally recorded sound. The external group is named by the external audio clip when synced.

Master fader
Controls the output signal level of the overall stereo mix.

Audio meters
These represent the audio signal level during playback. There is a stereo master meter and individual channel meters — one for each audio track. The scale on top of the meters indicates the audio level in dB (dBFS). Peaking is represented by a bar in the according color of the peaking level that remains at the maximum position. You can reset the peak bar by clicking on the audio meters.

Channel mixer fader
The volume faders control the signal level for each track.

Play button
Opens a sub view and enables the playback of a single audio channel (XT / Lab).

Mute button
Mutes the entire group or individual audio track.

Note: When transcoding clips with audio and using the combination Linear PCM and All Tracks (Skip Muted Tracks), the muted tracks won’t be exported.

Solo button
Solos the according audio track.

Pan switch
Sets the panorama to left, center or right. For each track the panorama alternates between left and right.

Lock audio tracks button
Locks single audio tracks so they are not altered when applying an audio offset.

Gear button

Reveal: Reveals the audio clip in its audio bin
Re-Sync: Syncs single audio clips or all audio clips in a bin again
Mid/Side: Select the channels that should be used for mid/side stereophony
Remove: Removes single external audio clips or all external audio clips in a bin or selection

Slip (Audio offset) buttonsSets an audio offset to the left or right which is determined by the amount of frames to slip.

Amount of frames to slip dropdown menu
Defines how many frames are slipped when applying an audio offset. You can set 0.5, 1 or 5 frames step precision.

Tip: Stepping through a clip frame by frame using the arrow keys, you will be able to hear audio for every frame. To disable audible frame stepping, go to the menu and toggle Playback > Audible Frame Stepping.

Audio details / Close button
Opens and closes the audio details panel for external audio clips and allows to zoom into the waveform for a visual sync check.

Sync audio… button
Opens the audio sync wizard. Only visible when no audio sync was applied yet.

Add audio button
Opens a new sub view to add and sync external audio to the clip. You can search for specific audio clips and listen to individual tracks.

Audio settings (…) button

Enables quick access to the following commands:

Apply Offset to All Timecode-Synced Clips
Apply Mix to All Clips in Bin
Re-Sync Audio
Lock/Unlock All External Audio Clips
Remove All External Audio Clips
Create Audio-Waveform-Data For Internal Audio Tracks in Entire Bin
Sync Audio…

Entire Bin vs. Selected Clips
Determines whether the command is applied to the entire bin or the selected clips only.

Audio details panel#

The audio details panel is only available in Silverstack Lab.

You can open the audio details panel with the Audio Details button in the top toolbar of the audio panel. This panel enables a better view of the waveform of each audio track. The top timeline shows the playhead position (red line) within the complete audio clip while the bottom timeline is a magnification of the area highlighted by the white rectangle above. You can drag the playhead around with the mouse to change the inspected area. Besides the already mentioned buttons, the audio details panel additionally shows the following UI elements:

Audio Track dropdown menu
Defines the audio track to be displayed.

Audio TC Offset
Displays the offset (delta) between the identical audio and video timecode. The value is shown as timecode with its equivalent in seconds (also viewable in General Info > Edit/User > Audio TC Offsets).

Re-Sync button
Syncs audio and video by timecode again. By default, this resets the “Audio TC Offset.” Only available after having applied an offset. ** VTC / ATC** Shows the current video timecode (VTC) and audio timecode (ATC) at the current frame position.

Set audio slate marker button
Sets an audio slate marker at the current playhead position to manually sync audio and video based on slate positions.

Set video slate marker button
Sets a video slate marker at the current playhead position to manually sync audio and video based on slate positions.

AV Timeline rulers
The video TC ruler shows in pink and the audio TC ruler shows in blue below.

Zoom In / Out buttons
Zooms in and out on the waveform.

Amplify slider
Amplifies the height of the waveform.