![]() ![]() Disabled - Disables chime unconditionally.Enabled - Enables chime unconditionally.Auto - Enables chime when StartupMute NVRAM variable is not present or set to 00.Minimum gain in decibels (dB) at which to attempt to play any sound.The screen reader will use this amplifier gain if the system amplifier gain read from the SystemAudioVolumeDB NVRAM variable is lower than this Minimum gain in decibels (dB) to use for picker audio assist.Maximum gain to use for UEFI audio, specified in decibels (dB) with respect to amplifier reference level of 0 dB.Enabling this setting routes audio playback from builtin protocols to specified dedicated audio ports (AudioOutMask) of the specified codec (AudioCodec), located on the specified audio controller (AudioDevice).When AudioSupport is enabled, AudioDevice must be either empty or a valid path and AudioOutMask must be non-zeroĮasiest way to find the right one is to go through each one (from 2^0 to 2^(N - 1), where N is the number of outputs listed in your log) ex: 5 outputs would translate to 1/2/4/8/16 (or a combination of these) as possible values A value of -1 is used to play to all channels simultaneously. A value of 1 refers to the first audio output (not necessarily main speaker). Output channels are internally numbered as bit 0 (value 1), bit 1 (value 2) and so on. Play sound in UEFI to more than one channel (e.g. Device path (PciRoot) of audio controller.Sh ioreg -rxn IOHDACodecDevice | grep IOHDACodecAddress # Grab the codec address Ioreg -rxn IOHDACodecDevice | grep VendorID # List all possible devices Failsafe value is 0.Ĭheck IORegistryExplorer -> HDEF -> AppleHDAController -> IOHDACodecDevice and see the IOHDACodecAddress property (ex: 0x0)Ĭan also check via terminal (Note if multiple show up, use the vendor ID to find the right device): This typically contains the first audio codec address on the builtin analog audio controller (HDEF). Mute startup chime sound in firmware audio support 0x00 is unmuted, missing variable or any other value means muted.This is the boot-chime and screen reader volume, note it's in hexadecimal so would become 70 in decimal 0x80 is mute.Note: after you're done setting up, you can revert to the RELEASE builds.Debug version of OpenCore with logging enabled.For those running out of space, OCEFIAudio_VoiceOver_Boot.mp3 is all that's required for the Boot-Chime.Add the Resources folder to EFI/OC, just like we did with the OpenCore GUI section.AudioDxe in both EFI/OC/Drivers and UEFI -> Drivers.So to start, we'll need a couple of things: Once all this is saved, you can reboot and be greeted with a true Mac-like GUI: Default (Syrah) Acidanthera\Chardonnay - Vintage icon set.Acidanthera\GoldenGate - Nouveau icon set.Auto - Automatically select one set of icons based on DefaultBackground colour.Misc -> Boot -> PickerVariant: Acidanthera\GoldenGate.Other settings for PickerAttributes can be found in the Configuration.pdf.VolumeIcon.icns reading from the drive, allows for macOS installer icons to appear in the picker This enables mouse/trackpad support as well as.Now in our ist, we have 4 things we need to fix: Once you have both of these, we'll next want to add it to our EFI partition: Note: OpenCanopy.efi must be from the same build as your OpenCore files, as mismatched files can cause boot issues.Once that's done, we'll need a couple things: If you're on an older version, I recommend updating: Updating OpenCore So to get started, we're gonna need 0.5.7 or newer as these builds have the GUI included with the rest of the files. ![]()
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