Likely ctrl+d for cross dissolve in Video Track, Short Cut for Audio Fadeout in premiere. CTRL-Shift -D will give you an audio fade. instead of aan audio cross dissolve. If you are at the end of an audio clip and its not butted against another (which it shouldnt be because audio clips should be on separate) ...
Just be sure that you have Targeted the desired Audio Track. Good luck
This is the step by step. Actually not complete, just i will try to make a module to Video Editing Course/School that we share.
1. Intoduction
What new in adobe premiere pro cc 2015. The Adobe Premiere Pro CC 2015.3 release (June 2016) delivers easy proxy
media creation that allows you to switch seamlessly between original
high-resolution and proxy low-resolution clips. Get your work done
faster with the Premiere Pro family of apps, connected to each other and
to your creative assets by Creative Cloud, providing a more streamlined
way to create. Premiere Pro also now offers powerful support for VR
Video workflows. Color and light have never been more important and with
new enhancements to the Lumetri Color tools, creative possibilities are
greatly expanded. Thanks to CreativeSync, all your creative assets —
your media, looks, images, and Stock content — are available in Premiere
Pro CC.
Premiere Pro
now supports proxy media creation, allowing you to easily switch between
original/high-resolution and proxy/low-resolution clips. Heavy 8K, HD
or HFR media can overload even the most powerful computer systems. Using
lower-resolution proxies can speed up editing, while maintaining the
ability to switch back to the original high resolution media for final
output. With proxy creation, you can work with high-resolution media
flexibly, across different devices (for example, on lightweight devices
that are slower and have less storage). Switching between
proxy/low-resolution and original/high-resolution files has never been
easier or more fluid.
Now you can
start editing footage immediately while it’s being imported in the
background. Mount the camera media and start editing right away. Once
the copy is complete, Premiere Pro switches to using the copied
media—allowing the camera media to be freed up for use elsewhere.
A new VR
workflow allows you to move around virtually inside spherical media
using new monitor controls or by click-dragging on the video for a
complete preview of the VR video playback experience. Premiere Pro
export properly flags the file so VR-capable video players such as
YouTube automatically recognize it. You can also preview stereoscopic VR
media by switching into anaglyph mode (requires anaglyph 3D glasses).
New
enhancements to the Lumetri Color tools help you be more creative with
color. For example, using HSL Secondaries, you can easily select a
specific range of colors to make adjustments to. Premiere Pro also now
offers color grading control surface support, which gives users finer
control over the subtleties of the color grade than what can be achieved
with a mouse and keyboard. Using the White Balance eyedropper feature,
you can now set the white balance within the frame with a single click.
You can also set the brightness of the scopes to one of three levels to
make them more readable in various lighting conditions. Apply preset
SpeedLooks with just one click.
Control Surface Support
Lumetri panel grading controls can now be mapped to control surface devices (Tangent Devices - Elements/Wave/Ripple).
A new section called HSL Secondary has
been added to the Lumetri Color effect. This section provides more
color tools to isolate a color/luma key and apply a secondary color
correction to it.
The Lumetri
Scopes now feature improvements to 8-bit display quality, and the
ability to adjust the brightness of the scopes from Normal(100%) to
Bright(125%) or Dimmed(50%).
Notable keyboard shortcuts that have been added include:
A toggle that allows you to instantly zoom all the way in on the
Timeline to view individual frames, and back out to the previous zoom
level.
A new shortcut to generate peak files for audio waveforms. This feature is useful when you have the Automatic peak file generation preference disabled.
New Shortcut to Add/Remove a keyframe.
New Shortcut to Nudge keyframe in time by one frame.
New Shortcut to select the Next/Previous keyframe.
Multiple
enhancements have been added to the editing experience to ensure editors
can work faster and more efficiently. Range selection now auto scrolls
the timeline vertically to select more clips outside the current view.
Remove specific effects using the Remove Attributes command.
All clip markers for a sequence can now be displayed in the markers panel. Filter clip markers in the
markers panel by color and view only those colored markers.
You can now
drag sequence video and audio tracks to a shorter timeline height,
collapsing tracks not in active use to devote more space to others.
Improved Morph Cut Face Detection
Premiere Pro
now comes with improved Morph Cut Face Detection. Premiere can now find
faces in more challenging shots, giving editors the option to use a
morph cut.
Ability to remove individual effects
Premiere Pro
now allows you to select clips in a sequence that already have effects
applied, and use the Remove Attributes command to remove specific
effects from a range of clips.
Timeline vertical auto scroll when range selecting
Premiere
Pro’s timeline now auto-scrolls the timeline vertically to select clips
beyond the current view while using the selection or lasso tool.
Premiere Pro
features new features to allow editors to create and edit open captions.
An editor can now create open captions (subtitles) directly in Premiere
Pro without having to use a 3rd party plug-in to create them. This
feature allows a user to select the font, color, size, and positioning
of open captions on screen.
Premiere Pro
now ensures maximum performance with support for H264 GPU acceleration
on Windows. Users with lightweight PCs and integrated Intel GPUs can now
experience improved playback performance with H264 media due to GPU
acceleration.
Fast, flexible editing workflows with broad native camera support
Premiere Pro
now offers broader native format support (including Red Weapon). You
can now edit virtually any type of media and not worry about
transcoding, thanks to broad native format support. This saves much time
and allows you to jump-start the editing process.
Expanded support in Premiere Pro’s Titler for MENA languages
The Title
functionality within Premiere Pro CC now supports more languages in
their native alphabets, including MENA territories: Arabic and Hebrew.
Users in more geographies can now incorporate titles in their native
alphabets.
Twitter has
been added to Premiere Pro’s extensive destination publishing
workflow, joining other social media publishing options such as YouTube,
Facebook and Vimeo. Now users can render and share videos directly to
Twitter from Premiere Pro.
Panasonic AVC-LongG export support
Premiere Pro
has added support for the Panasonic AVC-LongG codecs
(AVC-LongG6/12/25/50) in an MXF OP1a wrapper. These codecs are available
under the MXF OP1a format.
AS-10 export support
Premiere Pro now allows you to export using the AS-10 export option, which is now available in the format drop down.
FCP XML Time Remapping Support
Premiere Pro now supports the import of Speed ramps and exporting the same to Final Cut Pro XML documents.
Direct Export to XDCAM HD Disc
Premiere Pro now has an option to directly export to an XDCAMHD Disc. When an XDCAM HD codec is selected there is a Sony device compatibility check box. Checking this enables support for writing directly to an XDCAM HD disc.
QT XDCAM HD to MXF XDCAM HD Smart Rendering
You can now smart render your QuickTime XDCAM HD sources in to an MXF wrapper. It’s as simple as selecting the Enable Smart Rendering check box of a matching MXF OP1a preset.
Note:
Premiere Pro does not support smart rendering MXF XDCAM sources to QuickTime XDCAM.
HEVC Support for 10-bit output
Premiere Pro
now offers support for HEVC 10-bit export, which is available under the
Profiles setting of the HEVC Video tab. Main 10 profile permits 10-bit
exports. You can also export using the Rec. 2020 color primaries when
you select the Main 10 profile.
New check box added to remove XAVC-Intra spec limitation on duration
A new check box, Sony device compatibility
has been added to XAVC export settings. By default, this setting is
deselected and generates output that always matches the full duration of
your source. When checked, the output adheres to Sony specifications
that may truncate the end of your file.
Match Source option for still image formats
Match Source
is now offered for all still image formats supported by AME, matching
the source frame height, width, rate, field order, and aspect ratio.
Older presets have been removed and replaced with the new Match Source
versions.
Twirl down/up state
Twirl states are now remembered in Export Settings so they don't have to be readjusted to an up/down open/closed state each time.
You can now
purchase Stock assets directly from within the Premiere Pro Project
area. For watermarked Stock assets, you can now see a new Shopping Cart icon
in the Project area for these files, and you can now purchase Stock
assets directly from the Project area by clicking this icon. Also, if
you have a watermarked Stock asset in a Sequence, you can right click
the clip in the sequence to see a License option in the context menu. You can purchase a watermarked Stock asset directly from the clip in the Sequence.
You can now
share read-only CC Libraries that are locked from editing but can still
be used. New assets can be automatically updated and shared
instantly. This feature allows you to share read-only locked Library
assets that cannot be renamed or deleted from the library. You can also
set different
levels of access to a read-only library. 'Edit only' access allows
collaborators to edit, rename move or delete the contents of a
library. View only access limits a collaborator to using and commenting
on an asset. You can now share a public link(URL) to share library
assets and this library appears in the users' library panel, so they can
automatically get updates to the library in the apps that support
Libraries.
This feature
allows users with Dolby Vision MXF clips to export cuts-only copies of
Dolby clips to a new Dolby container, along with smart rendering of the
underlying media files. If any changes are applied, the exported MXF
does not retain the Dolby metadata. This is a useful way to join
together or make cuts-only edits to existing Dolby Vision material.
To learn more, see 
