Welcome! These pages are dedicated to bringing you some fine audio related software, with the focus on quality and efficiency. Including the XMPlay audio player, the BASS audio library and the MO3 audio format!

15 Oct 2025	BASS Tags 20 released Adds support for "remixer" tags, and uses reference counting to prevent a channel being freed while processing its tags.
7 Oct 2025	BASS 2.4.18 released Adds downmixed playback, multi-channel DX8 effect support, DSP/FX on individual mono/stereo channels within multi-channel streams, DSP/FX processing granularity support on decoding channels, DSP/FX bypassing, raw byte position retrieval/syncing unaffected by seeking, improved MP3 seeking accuracy without prescanning, MP4 cover art retrieval, internet stream creation cancelling, streaming from file handles/descriptors, delayed/asynchronous channel freeing including within callback functions, device list notifications, Apple voice processing for echo cancellation on macOS/iOS, AAudio recording on Android, 16KB page support on Android, and a bunch more!
20 Jun 2025	BASSenc_FLAC 2.4.5 released Updates the core to libFLAC 1.5.0, adding support for multithreaded encoding.
3 Feb 2025	XMPlay ASIO plugin 1.8 released
14 Jan 2025	XMPlay 7-Zip plugin 1.6 released Adds support for the PPMd and Delta methods, archives larger than 4GB, and updates the core to LZMA SDK 24.09.
9 Jan 2025	XMPlay DirectSound plugin 1.6 released Adds playback speed control.
9 Jan 2025	XMPlay Null output plugin 1.2 released Originally just an example in the XMPlay SDK but now released separately, this plugin provides a "null" output that discards the data, optionally logging the tracks and data played.
8 Jan 2025	2MIDI 1.4.1 released Fixes compatibility with Windows 11 24H2.
23 Dec 2024	XMPlay 4.0 released Adds a new default skin, hue and light adjustment, auto-mini mode configuration, built-in support for WMA/AC3/GZIP formats, taskbar playback buttons, adjustable seeking steps, old tracks can be faded-out over new tracks, gaps can be inserted between tracks, tracks can be sent to other apps for editing/etc, filename and full path playlist display options, queue support in extended playlist, main/info window edge snapping and joint movement, info window auto-hiding when inactive, improved drag'n'drop support, context-sensitive help in the options window, and a bunch more!
14 Oct 2024	XMPlay MIDI plugin rev.20 released Adds support for more SFZ opcodes and SF2 modulators, improved filters including high-pass support, and an auto-detection mode for SB limits emulation.
9 Oct 2024	BASSMIDI 2.4.15 released Adds support for more SFZ opcodes and SF2 modulators, improved SFZ parsing, auto-disabling of SB limits emulation for modern SF2 files, improved filters including high-pass support, sequencer specific meta-event retrieval, improved multi-port MIDI file handling, and practically unlimited voices.
20 Sep 2024	BASSenc_OGG 2.4.3 released Adds support for embedding images.
16 Aug 2024	BASSCD 2.4.8 released Adds support for a custom "hello" ID in CDDB requests.
16 Aug 2024	ARM64 support on Windows ARM64 architecture support for the Windows versions of BASS and the add-ons is available as a separate download.
6 Aug 2024	XMPlay Opus and WebM plugin rev.8 released Disables channel reordering with mapping family 255 files, and updates the core to libOpus 1.5.2.
6 Aug 2024	XMPlay ALAC plugin rev.3 released Adds support for very large files, and fixes the channel order for 3/5/7 channel files.
2 Aug 2024	BASSenc_OPUS 2.4.4 released Adds raw Opus output without an Ogg container, custom channel mapping/coupling with mapping family 255, and updates the core to libOpus 1.5.2.
2 Aug 2024	BASSOPUS 2.4.3 released Adds support for raw Opus without an Ogg container, and updates the core to libOpus 1.5.2.
31 Jul 2024	BASSALAC 2.4.1 released Adds support for very large files (64-bit MP4 atoms), leaves MP4 tag reading to BASS, and fixes the channel order for 3/5/7 channel files.
25 Jul 2024	2MIDI 1.4 released Adds support for bidi loops and key info in exported WAV/AIF samples, optional looped sample length trimming, and improved compatibility with Wine.
19 Jul 2024	XMPlay Monkey's Audio plugin rev.4 released Updates the core to Monkey's Audio SDK 10.74.
18 Jul 2024	BASSAPE 2.4.0.1 released Updates the core to Monkey's Audio SDK 10.74.
13 Mar 2024	2MIDI 1.3.3 released 2MIDI is now freeware with all features enabled for everyone.
6 Mar 2024	BASSloud 2.4 released A new add-on providing loudness measurement of BASS channels.
5 Mar 2024	XMPlay WavPack plugin rev.7 released Updates the core to WavPack 5.7.0.
5 Mar 2024	BASSWV 2.4.7.4 released Updates the core to WavPack 5.7.0.
19 Oct 2023	XMPlay MIDI plugin rev.19 released Adds display and overriding of used presets in the mixer window, improved SFZ variable parsing compatibility, and improved handling of overlapping duplicate notes.
13 Oct 2023	XMPlay FLAC plugin rev.15 released Updates the core to libFLAC 1.4.3.
12 Oct 2023	BASSFLAC 2.4.5.4 and BASSenc_FLAC 2.4.4.1 released Updates the core to libFLAC 1.4.3.
27 Sep 2023	BASSOPUS 2.4.2.4 released Only reorders channels for channel mapping family 1, and fixes the order of 7 channel (6.1) files.
26 Sep 2023	BASSenc_OPUS 2.4.3 released Adds the option of disabling reordering channels for the Opus spec, and of using channel mapping family 255.
26 Sep 2023	BASSenc_OGG 2.4.2 released Adds faster encoding, and support for the Vorbis spec's multi-channel ordering with the option of ignoring it.
25 Sep 2023	Xcode 15 support on macOS The macOS versions of BASS and the add-ons have been rebuilt to work with the new Xcode 15 linker.
18 Sep 2023	BASS Tags 19 released
24 Jul 2023	BASSHLS 2.4.4 released Adds support for download callback changing, fMP4 event message (emsg) tag reading, and skipping of junk at the start of MPEG-TS segments.
21 Jul 2023	BASSASIO 1.4.2 released Adds support for sample rate conversion with ASIO formats 24-27 (32-bit data with alignment), and allows channel disabling after a device is started.
19 May 2023	BASSWASAPI 2.4.4 released Adds support for shared mode resampling, and faster device info retrieval.
4 May 2023	BASSOPUS 2.4.2.3 and BASSenc_OPUS 2.4.2.1 released Updates the core to libOpus 1.4.
9 Feb 2023	BASSFLAC 2.4.5.2 released Updates the core to libFLAC 1.4.2 and fixes a conflict with Opus streams.
9 Feb 2023	BASSWEBM 2.4.0.3 released Adds some seeking improvements.