Adds Function That Inform USB-Connected Codecs If AEC Can Be Handled

Improvements

• Device Type - Informs supporting USB-connected codecs the P300 will or will not handle AEC (acoustic echo cancellation). The user or the codec* can then enable or disable the codec's AEC. *Certified Codecs may support automatic AEC disable or enable based on the device type. Users may also manually enable or disable AEC with supporting codecs.
  • Speakerphone: Use when the codec will handle AEC.
  • Echo-canceling speakerphone: Use when the P300 will handle AEC.
  • Designer's Optimize workflow chooses Echo-cancelling speakerphone by default.
  • USB device type changes take 3-4 seconds and audio drops out briefly. Do not change other settings while this takes effect.
  • It may be required to the P300-IMX as the default audio device in the codec after making changes.
• Added logic device type and EQ contour support for the MXA920 Ceiling Array Microphone

• Bug fixes

• Shure Audio Encryption is not backward compatible; all devices must be on version 4.1+ firmware to use this feature
• P300 Shure Audio Encryption sometimes has brief crackling sound on audio after muting
• Shure Update Utility and Designer may not allow downgrading of new P300s shipped with 4.2.7 or higher  due to a platform update to support future functionality and USB improvements
• P300s with firmware 4.3 require Designer versions 4.3 and higher and will NOT be supported in Designer versions 4.2.1 and earlier.
• P300 firmware periodically add new properties. The P300 may become undiscoverable if downgrading to firmware without the new properties and may need a factory reset to become discoverable.
• When attempting to load the device's web page after using SUU to upgrade or downgrade between MXA 4.3 and earlier releases, the browser may appear to be stuck on the "Loading" screen with the progress bar continually moving.
  • Workaround: hold your Shift key and click the Refresh button in your browser (or press Ctrl+Shift+R [Win]/Ctrl+F5 [Win]/Cmd+Shift+R [Mac]; note the keyboard shortcut doesn't work on Safari)

• User Guide
• Command Strings
• To operate this version of P300-IMX with Dante Controller, reference the following minimum versions:
  • v3.10.2.4 (Windows)
  • v3.10.2.3 (macOS)
• To operate this version of P300-IMX with Microsoft Teams, reference the following minimum versions:
  • Microsoft Teams Desktop: 1.3.00.24755
  • Microsoft Teams Rooms: 4.6.20.0
• To operate this version of P300-IMX with other Shure networked systems, reference the following list of recommended versions supported:
  • Designer 4.7.0
  • ANI22/ANI4IN/ANI4OUT 4.7.6
  • ANIUSB-MATRIX 4.7.16
  • MXA310 4.7.8
  • MXA710 1.5.13
  • MXA910 4.7.13
  • MXN5-C 1.5.12
  • MXA-MUTE 1.5.15
  • Microflex Wireless 10.0.6
  • Shure Update Utility 2.7.1
  • Shure Web Device Discovery 1.2.17