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Adobe ha rilasciato un aggiornamento corposo di Adobe Premiere Pro ed è disponibile per tutti tramite l'app Adobe Creative Cloud.

Premiere Pro 15.4 introduces Speech to Text, the first integrated and automated workflow for adding and customizing captions for video. This release also adds native support for Apple M1 devices, new tools for stylizing titles and captions, and other workflow improvements that help you work faster and deliver content that connects with your audience.

Speech to Text
Leveraging the power of Adobe Sensei
Automatically generate a transcript and add captions to your videos to improve accessibility and boost engagement with Speech to Text. Instead of manually moving between applications and platforms, you can now complete everything inside Premiere Pro, on average 5x faster than other available workflows. This graph shows the time savings for a five minute video.
With support for 13 languages, Beta users around the world have confirmed the impressive accuracy of Speech to Text transcriptions. If changes are needed, such as the correct spelling of names, text edits are easily completed in the Text panel inside Premiere Pro. Once a transcription is ready, select Create Captions to bring your captions onto the Timeline. Customize the appearance of your captions using the design tools in the Essential Graphics panel.

Transcript editing tools
Search your transcripts for specific words or phrases; click on a word in the Text panel to move the playhead to the corresponding position in the timeline. You can also export your transcript allows and generate text file right from the Text panel. You can use the text files for proof-reading, to share transcripts with clients, or to get a head start on written content.
Premiere Pro can automatically identify different speakers, simplifying reviewing and editing. You can also have Premiere Pro to display pauses as ellipses ( … ) so you can see where there are gaps in the dialog and navigate between them.

Generate captions automatically
Powered by Adobe Sensei, Speech to Text transforms transcriptions into caption items on the timeline, leveraging machine learning to match the natural pacing of your dialog.
The Create captions dialog includes sliders for adjusting how captions are arranged, such as maximum number of characters per line, and a dropdown menu for broadcast standard caption presets. If needed, you can save your own custom presets as well.

Native support for Apple M1 computers
Premiere Pro allows you to take advantage of the latest technologies, including new Apple M1 devices. From launch times to export, everything is faster, and editing is buttery smooth. Thanks to optimizations for the Apple Neural Engine, part of the M1 chip architecture,  Adobe Sensei features like Auto Reframe and Scene Edit Detection are noticeably accelerated.
Premiere Pro also takes advantage of the Apple M1’s lower power requirements providing significantly longer battery life than the previous models with comparable specifications. With full support for ground-breaking features like Speech to Text, you can produce cutting edge video content on lighter devices that rival the performance of high-end workstations. 

New titling and caption styling tools
Premiere Pro 15.4 offers even more tools for stylizing text and captions, including - the ability to add multiple shadows to text layers, the ability to change attributes of text backgrounds, and expanded font substitution with support for 28 different international alphabets.

Add multiple shadows to text layers
You can now stylize titles by adding drop shadows to individual text layers, similar to how you add strokes to a text layer.

Text background improvements
Change attributes of text backgrounds to make them part of your designs, including fills and adjustable rounded corners. Use Text Backgrounds with titles and captions, for example to make them more easily readable. Select the Background checkbox in the Essential Graphics panel to access text background options.

Expanded font substitution
Font substitution now supports 28 different alphabets. If the fonts are available on your system, Premiere Pro can substitute those fonts.

Upgrade Legacy Titles
Still working with Legacy Titles? Now you can convert them into Source Graphics within your Premiere Pro projects. Source Graphics are displayed in the Project panel, where you can track and sort them like any other project item.
Upgrading Legacy Titles converts Legacy Title attributes, including text stylings, layer settings, and track item filters.
The appearance of converted titles is similar but not identical to the original. Some elements are not translated, such as shapes, rolls, crawls, tracking, rotation, and Responsive Design - Time. You can recreate most of these effects using the titling tools in the Essential Graphics panel.

Color improvements
Tetrahedral LUT interpolation
Tetrahedral LUT interpolation in Premiere Pro offers more precise interpretation of color information for better consistency when grading footage with difficult lighting conditions, such as strong shadows and highlights in the same shot, and reducing the chances of introducing banding during post-production.

Colorized Vectorscope in Premiere Pro (Beta)
A new colorized vectorscope, providing more detailed image analysis for color grading in Premiere Pro is now available in public Beta.

Faster Team Projects
Team Projects is getting faster and more efficient, streamlining remote editing and production workflows.
- Faster saving– Saving changes in Premiere Pro 15.4 is faster, thanks to optimizations to the Team Project file structure.
- Progressive project loading (Beta) means you can start working sooner, thanks to intelligent loading that reduces Team Projects startup times from minutes to seconds.
- Media relinking (Beta) allows you to relink your project files locally in Premiere Pro, without having to go through the Team Project Media Management panel. Premiere Pro (Beta) keeps everything organized and ensures that local media folders sync correctly with your shared Team Projects file.

Label colors and clip names
Working on Productions? You can now customize label colors and clip names on the timeline with the option of having the changes apply to the source media label colors and clip names on the Project panel. This is helpful for users who want to be able to customize their current sequence without modifying the labels and names of their source assets. You can also map a keyboard shortcut for easy toggling between options.

Faster Scene Edit Detection
Scene Edit Detection, powered by Adobe Sensei, is up to 2x faster on macOS and Windows, and 3X faster on Apple M1 devices

Automatic audio device switching
Creative Cloud video applications on Windows automatically switch when swapping out audio devices, such as interfaces, microphones, or headphones. You can still manually set audio devices in Edit > Preferences (Windows) or Premiere Pro > Preferences (macOS).
Note: Device Switching is only enabled for MME audio driver support, and is not active when ASIO or WASAPI driver models are selected.

Discontinued CUDA and OpenCL support on macOS
With the latest release, support for CUDA and OpenCL graphics rendering on macOS is no longer included with the Adobe video and audio applications.
The Adobe video and audio team is focused on Apple Metal graphics for macOS, ensuring a stable and performant user experience for our applications on the Apple platform.


Fixed issues in Premiere Pro version 15.4
- Clip outline (shadow trail) should be visible whenever the clip is moved in the timeline.
- Improved stability when applying some audio filter effects than playing back.
- Length of source clip is affected by changes in a sub-clip.
- Conflicting marker data is added every time a sequence is moved to a different project.
- Exported Caption text blocks locations and duration are different than original the Caption file.
- Some captions files failing to import from XML files working in previous versions.
- Improved performance when closing large projects.
- SRT doesn't display any subtitles beyond zero duration line entry.