You can easily test your Skype video quality in your 'Audio & Video' settings on your PC or Mac computer. How to make sure your web cam and mic are working on your Mac. Note that Apple Hardware Test runs on Macs built in 2013 and before, whereas newer Mac models will run Apple Diagnostics instead. The appearances are slightly different as are the names, but the ability to test the hardware for problems is the same regardless of how things look or what they are called. Apple's latest 'Behind the Mac' ad, 'Test the Impossible,' is another effort at manufacturing a lifestyle image, in this instance targeted at college students. From our test, converting an hour-long YouTube video into an MP3 took fewer than two minutes. We also tried to pull a 249-track playlist from a video game soundtrack. That took under 15 minutes to convert them all to MP3 files and add them to iTunes and my iPhone X.

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Broad support for high dynamic range (HDR) video, such as HDR movies and TV shows from Apple or other providers, requires the latest version of macOS and a compatible Mac model. If your Mac, display, video cable, or video cable adapter doesn't support HDR10, video plays in standard dynamic range (SDR).

Mac models that support HDR

Test Video Mac

Display maestro 3 0 8 mm. External displays. Use the Thunderbolt 3 (USB-C) ports on your Mac to connect to external HDR10-compatible displays:

• DisplayPort displays: Use a cable that has a USB-C connector for your Mac and the appropriate connector for the port on your display, which is usually a DisplayPort, USB-C, or Thunderbolt 3 port.
• HDMI displays: Use an HDMI cable and a USB-C adapter such as the Apple USB-C Digital AV Multiport Adapter or Belkin USB-C to HDMI Adapter.
• Apple Pro Display XDR supports several HDR formats, including HDR10, when used with a Mac compatible with this display.

When an external display tells your Mac that it supports HDR10, your Mac might automatically enable HDR for that display. You can also enable or disable HDR for external displays in Displays preferences.

Getting the best HDR picture

If HDR video doesn't play in HDR or with the quality you expect, try these solutions.

Check your Mac

• Install the latest Apple software updates for macOS Catalina or later. Some HDR features are available only with the latest macOS.
• Choose Apple menu  > System Preferences, click Displays, then make sure that High Dynamic Range is selected. It appears only on third-party displays that support HDR10, not on built-in displays. If you don't want to use HDR, deselect this checkbox.
  
• Choose Apple menu  > System Preferences, then click Energy Saver. If ”Optimize video streaming while on battery power” is selected in the Battery tab, your Mac saves energy by playing HDR video in SDR while on battery power. To play in HDR, connect your Mac to power or deselect this checkbox.
  

Check your external display

• Make sure that your display supports HDR10. If the display has its own HDR setting, turn it on or set it to prefer HDR when available.
• Make sure that your display is using the latest firmware from the manufacturer. Check your display's documentation for details.
• Some televisions support HDR only on a specific input, such as HDMI input 2 or HDMI input 3. Check its documentation for details.

Check your media

If you're playing premium content from a third-party content provider, check with the content provider to be sure that they support HDR on your Mac.

Check your cables and other devices

• If you're using HDMI, make sure that the HDMI cable and adapter support HDR10. Apple recommends HDMI cables that have been tested with Apple TV 4K and a wide range of televisions, such as the Belkin UltraHD HDMI Cable. Compatible adapters include the Apple USB-C Digital AV Multiport Adapter and Belkin USB-C to HDMI Adapter.
• If your video connection passes through an AV receiver, sound bar, or other device before connecting to your display, make sure that the device supports HDR10 and is using the latest firmware from the manufacturer. You can test by connecting your Mac directly to the display.

Check your viewing environment

The brightness and color of HDR video may vary depending on your Mac model and the lighting in your environment. Lower lighting conditions, such as in a dim room, enhance the visual effect of HDR. Macbook pro for music production.

Learn more

• For details about the HDR capabilities or settings of a third-party display, cable, or adapter, please check the documentation for the product, or contact the product vendor.
• Learn what to do if video on your HDR display is too bright or vivid.
• Learn about firmware updates for Pro Display XDR.