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BlueALSA Release Notes

unreleased

  • renamed bluealsa to bluealsad (no backward compatibility)
  • renamed bluealsa.conf to org.bluealsa.conf (no backward compatibility)
  • renamed bluealsa-cli to bluealsactl (no backward compatibility)
  • optional support for A2DP Sink and Source with LHDC v3 codec
  • optional support for Audio Streaming for Hearing Aids (ASHA) profile
  • channel map and volume control for surround sound (5.1, 7.1) audio
  • native A2DP volume control by default (dropped --a2dp-volume option)
  • optional support for adaptive audio resampling in bluealsa-aplay
  • fix configuration for Android 13 A2DP Opus codec
  • improved ALSA PCM support for A2DP-sink, HFP-HF and HSP-HS

bluez-alsa v4.3.1 (2024-08-30)

  • fix crash when playing audio with more than 2 channels
  • fix AAC configuration selection for low sample rates

bluez-alsa v4.3.0 (2024-08-13)

  • optional support for Android 13 A2DP Opus codec
  • multi channels and sample rates mode for ALSA PCM plug-in
  • bluealsa-aplay: fix volume synchronization on Raspberry Pi

bluez-alsa v4.2.0 (2024-05-11)

  • optional support for BLE MIDI 1.0 profile as a GATT server
  • optional support for HFP LC3-SWB (Super Wide Band) codec
  • command line option to set real-time priority for IO threads
  • command line option to filter log messages based on severity
  • allow to select individual extended controls in ALSA plug-in
  • codec-specific delay adjustment with ALSA control and persistency
  • improved AAC codec support to be conformant with A2DP v1.4
  • fix for SBC codec and audio scaling on big-endian platforms
  • fix mSBC decode for MTU > 60 bytes (e.g. Realtek USB adapters)
  • bluealsa-aplay: option to auto-select volume mode for used PCM
  • support use of libfreeaptx for apt-X and apt-X HD codecs
  • stability fixes for ALSA PCM I/O plug-in

bluez-alsa v4.1.1 (2023-06-24)

  • fix for oFono HF role SCO socket authorization
  • fix for mSBC MTU adjustment for Realtek USB adapters
  • bluealsa-aplay: fix playback after BT codec update

bluez-alsa v4.1.0 (2023-05-23)

  • removed deprecated org.bluealsa.Manager1 D-Bus interface
  • persistent storage for PCM volume and mute state
  • PCM volume control with oFono HFP-AG and HFP-HF profiles
  • transport running state exported in PCM D-Bus interface
  • A2DP codec configuration blob exported in PCM D-Bus interface
  • optional non-dynamic operation mode for ALSA control plug-in
  • optional extended controls for ALSA control plug-in
  • changed RFCOMM D-Bus API features property to array of strings
  • fix for SCO link establishment for oFono HFP-AG profile
  • fix for volume control for HSP-HS and HFP-HF profiles
  • stability fixes for ALSA PCM I/O and control plug-ins
  • bluealsa-aplay: fix for volume synchronization
  • lots of fixes for race conditions (TSAN)
  • lots of updates to the manual pages

bluez-alsa v4.0.0 (2022-06-03)

  • changes in command line options (no backward compatibility)
  • implement D-Bus ObjectManager (deprecate org.bluealsa.Manager1)
  • optional support for A2DP FastStream codec (music & voice)
  • optional support for A2DP LC3plus codec (music & voice)
  • enhanced SBC XQ mode (XQ+) which bumps bitrate to 595 kbps
  • packet loss concealment (PLC) for HFP with mSBC codec
  • enable/disable BT codecs via command line options
  • allow to select BT transport codec with ALSA configuration
  • allow to set PCM volume properties with ALSA configuration
  • optional single-device mode for ALSA control plug-in
  • export battery status/charge via BlueZ battery provider
  • connection keep-alive timeout for all BT profiles
  • better conformance with RTP specification for A2DP codecs
  • fix for rapid consecutive SCO link close(2)/connect(2)
  • bluealsa-aplay: forward PCM volume to ALSA mixer element
  • systemd service files for bluealsa and bluealsa-aplay
  • lots of fixes for ALSA PCM I/O and control plug-ins

bluez-alsa v3.1.0 (2021-06-01)

  • higher PCM bit depth for apt-X HD (24-bit) and LDAC (32-bit)
  • support for A2DP Sink with apt-X (HD) if decoder is available
  • support for A2DP Sink with LDAC codec if decoder is available
  • better audio volume scaling (Bluetooth volume as loudness)
  • support TLV data for dB calculations in ALSA control plug-in
  • fix PCM delay reporting from connected Bluetooth devices
  • most recently connected Bluetooth device as a default PCM
  • lots of improvements to the ALSA PCM I/O plug-in
  • use rst2man (docutils) instead of pandoc to build man-pages
  • bluealsa-cli: utility for using D-Bus API from command line
  • bash completion script for installed applications

bluez-alsa v3.0.0 (2020-09-15)

  • separate D-Bus paths for PCM sink and source (API breakage)
  • store PCM sample physical width in the D-Bus format property
  • list available and supported audio codecs via D-Bus API
  • support for A2DP audio codec selection or reconfiguration
  • fix SBC encoder bit-pool selection (support SBC XQ quality)
  • allow to disable software volume scaling via D-Bus API
  • great improvement to the PCM I/O plug-in (thanks to @borine)
  • install bluez-alsa manual pages (optional, requires pandoc)
  • bluealsa-aplay: list connected BT devices and available PCMs
  • bluealsa-aplay: fix PCM corruption due to out-of-bounds read

bluez-alsa v2.1.0 (2020-01-25)

  • support HSP/HFP headset mode (connect phone without oFono)
  • optional integration with UPower for battery level reporting
  • initial (HFP only) support for audio codec selection
  • auto-detect BlueZ D-Bus service appearance/disappearance
  • lots of improvements for SCO connection robustness
  • route SCO data via transport interface in Broadcom chips
  • lots of fixes for ALSA plug-ins and BlueALSA server

bluez-alsa v2.0.0 (2019-10-15)

  • BlueALSA server as a D-Bus service with public API
  • optional support for A2DP Sink and Source with MP3 codec
  • optional support for A2DP Source with apt-X HD codec
  • optional support for mSBC codec in HFP profile
  • manage internal BlueALSA memory by reference counting
  • lots of fixes for ALSA plug-ins and BlueALSA server

bluez-alsa v1.4.0 (2019-03-16)

  • optional support for A2DP Source with LDAC codec
  • optional support for HFP-AG and HFP-HF over oFono
  • keep-alive timeout for closed A2DP connections
  • volume update notification for connected ALSA mixers
  • HCI selection by MAC address on multi-HCI hosts
  • lots of fixes for ALSA plug-ins and BlueALSA server

bluez-alsa v1.3.1 (2018-09-08)

  • bluealsa-aplay: release playback PCM when there is no data
  • workaround for RTP mark bit quirk (fix audio from Android)
  • stability fixes for ALSA plug-ins and BlueALSA server

bluez-alsa v1.3.0 (2018-07-23)

  • initial support for Hands-Free Profile (HFP-HF)
  • optional support for A2DP Source with apt-X codec
  • multiple A2DP connections (allow to connect many headsets)
  • report missing device in ALSA after BT disconnection
  • selective profile selection via command line arguments
  • optional logging to system logger (e.g. syslog)
  • PCM FIFO file descriptor sharing via domain socket
  • configuration option for PulseAudio compatibility
  • bluealsa-rfcomm tool for handling custom RFCOMM commands
  • lots of fixes for ALSA plug-ins and BlueALSA server

bluez-alsa v1.2.0 (2017-04-13)

  • optional A2DP Sink and Source with AAC codec
  • initial support for HSP and HFP Audio Gateway
  • support remote device volume change for A2DP Sink
  • display remote BT device battery level in ALSA mixer
  • allow to force 44100 Hz and/or mono audio for A2DP
  • software volume control separately for left/right channel
  • account for PCM delay reported by remote BT headset
  • randomize RTP timestamp and sequence number (RFC 3016)
  • bluealsa-aplay tool for playing audio from BT device
  • lots of fixes for ALSA plug-ins and BlueALSA server

bluez-alsa v1.1.0 (2016-09-19)

  • support for PCM pause, resume and delay reporting
  • lots of fixes for ALSA plug-ins and BlueALSA server

bluez-alsa v1.0.0 (2016-08-27)

  • A2DP Sink and Source with mandatory SBC codec
  • PCM I/O and control plug-ins for ALSA integration
  • hcitop tool for displaying HCI bandwidth