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CHANGELOG.md

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BlackHole Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

Feature Requests

  • Add support for additional virtual formats. 24-bit, 16-bit.
  • Sync BlackHole audio clock with any audio device.
  • Create multi-output / aggregate device with installer.
  • Keep track of which apps are connected to the driver.

[Unreleased]

Changed

[0.6.0] - Mar 22, 2024

Added

Added precompiler constant for kCanBeDefaultDevice and kCanBeDefaultSystemDevice.

Changed

Updated postinstall script to use 'kill' instead of 'kickstart'. Updated strings for model name,

[0.5.1] - 2023-11-06

Changed

  • Improved installer build script.
  • Bumped minimum required operating system to macOS 10.10 Yosemite.
  • Update kAudioDevicePropertyDeviceIsRunning separately for device1 and device2

[0.5.0] - 2023-02-10

Changed

  • Various typo fixes.

Added

  • kObjectID_Pitch_Adjust and kObjectID_ClockSource to adjust clock speed.

[0.4.1] - 2023-02-10

Changed

  • Merged BlackHole.h into BlackHole.c for easier testing.
  • Fixed control size bugs.

Added

  • Added BlackHoleTests target and relevant files.

[0.4.0] - 2021-06-10

Added

  • Hidden duplicate device.
  • Ability to easily modify device streams.
  • Builds multiple versions.
  • create_installer.sh to easily build multiple channel versions.

Changed

  • Fix potential memory leak.
  • Fix dropouts when experiencing minor loads.

[0.3.0] - 2021-12-07

Added

  • Sample rates: 8kHz, 16kHz, 352.8kHz, 384kHz, 705.6kHz, 768kHz.

Changed

  • Improved performance.
  • Fixed various bugs.
  • Renamed constants and variables for consistency.
  • Connect input and output volume.
  • Connect input and output mute.

[0.2.10] - 2021-08-21

Changed

  • Increased internal buffer size.
  • Change kDataSource_NumberItems to zero.

[0.2.9] - 2021-1-27

Changed

  • Fix clock bug. Fixes issues with BlackHole crashing on Apple Silicon.

[0.2.8] - 2020-12-26

Added

  • Support for Apple Silicon.

Changed

  • Set deployment target to macOS 10.9.
  • Fixed bug where there is a loud pop when audio starts.
  • Fix bug that caused crashes in certain situations. (Issue #206)
  • Disable Volume and Mute controls on input. They are only needed on the output.
  • Fix clock bug.
  • Automatically change UIDs to include the number of channels. Makes it easier to build and install multiple versions. Ex: BlackHole2ch_UID

[0.2.7] - 2020-08-08

Changed

  • Improved Logarithmic Volume Control.
  • Various updates to README.

Added

  • Added IOMutex to IO operations.

[0.2.6] - 2020-02-09

Changed

  • Fixed BlackHole buffer allocation error when switching audio devices from DAW.
  • Fixed BlackHole buffer allocation error when sleeping.
  • Audio Midi Setup speaker configuration now saves preferences.

[0.2.5] - 2019-11-29

Changed

  • Set default volume to 1.0.

[0.2.4] - 2019-11-28

Added

  • Ability to mute and changed volume on input and out of BlackHole.

[0.2.3] - 2019-11-22

Changed

  • Display number of channels in audio source name.

[0.2.2] - 2019-10-02

Fixed

  • Fixed bugs when multiple devices are reading and writing simultaneously.

[0.2.1] - 2019-09-30

Changed

  • Set deployment target to macOS 10.10 to include Yosemite and Sierra

[0.2.0] - 2019-09-29

Added

  • Support for 88.2kHz, 96kHz, 176.4kHz and 192kHz.
  • Sums audio from multiple sources.
  • Changelog.
  • Device Icon.

[0.1.0] - 2019-09-27

Added

  • Ability to pass audio between applications.
  • Support for 16 channels of audio.
  • Support for 44.1kHz and 48kHz.