Sonic Visualiser

Changes in Sonic Visualiser v4.2 (14 August 2020) since the previous release 4.1:

 - Speed up startup, especially on Windows and especially when a lot

   of plugins are installed. Plugins are now scanned after the main

   window has been displayed, and the Transform menus are populated

   dynamically when the results are available.

 - Fix incompatibility of 64-bit Windows build with Windows 7

Changes in Sonic Visualiser v4.1 (18 June 2020) since the previous release 4.0.1:

 - Support "dark mode" on Windows and Linux as well as macOS

 - Add right-click (or Ctrl-click, on the Mac) context menus to the

   layer property tabs, pane zoom controls, and all dial controls,

   providing some basic edit and reset functions

 - Provide format options when exporting layers to CSV, allowing

   control over column separator, header row, and timestamp format

 - Permit and handle optional header row when importing from CSV

 - Add export of spectrogram data to CSV formats

 - Support doubling escapes for quotes in quoted CSV fields on import

 - Fix truncated image export when exporting from spectrogram view

   that hasn't finished loading when the export is requested

 - Fix failure to show parameter updates when changing the current

   program in a Vamp plugin that supports programs (e.g. Melodia)

 - Fix inability of Windows builds to open https:// URLs

 - Add references to Vamp Plugin Pack in "Find a Transform" results

   for plugins that are not yet installed but are available in pack

 - Improve and tidy various aspects of OSC support, and update

   documentation for it

 - Improve performance of peak-frequency spectrogram

 - Fix missing undo/redo of layer renames

 - Fix failure to audition effects plugins live, while adjusting their

   parameters in preparation for applying them - this worked in some

   cases, but not the most common ones; it should now work everywhere

Changes in Sonic Visualiser v4.0.1 (10 Dec 2019) since the previous release 4.0:

 - Fix nonsense vertical scale in NoteLayer when displaying a model

   with non-Hz scale (e.g. from an analysis plugin that outputs MIDI

   note values)

 - Fix failure to open playback device when using macOS Catalina with

   certain audio devices

 - Fix failure to make installed executables executable when

   compiling and installing the source package

Changes in Sonic Visualiser v4.0 (25 Oct 2019) since the previous release 3.3:

 - Add Box annotation layer type, typically used for time-frequency

   boxes to be annotated over a spectrogram. Because this introduces a

   new layer type into the session file format, the major version

   number has been bumped to v4.0. Sessions saved from v4.0 can still

   be opened in earlier versions of Sonic Visualiser, but any Box

   layers will not be loaded

 - Fix behaviour of auto-align layers on top of waveform: they can now

   be aligned in the vertical scale, if they have a unit of V and the

   waveform is of a single channel in linear or dB mode

 - Make the UI more readable in macOS "dark mode"

 - Fix sluggishness in starting and stopping playback when using

   PulseAudio v13.0+

Changes in Sonic Visualiser v3.3 (21 May 2019) since the previous release 3.2.1:

 - Add support for reading the Opus audio codec on all platforms

 - Add support for WMA and AAC formats on 64-bit Windows. (AAC was

   already supported on macOS.) Note that AAC support on Windows does

   not support "gapless" import, i.e. removing the encoder gaps at

   start and end of the stream

 - Add ability to choose the field separator when importing CSV and

   CSV-like files, if more than one possible candidate separator is

   found in the file

 - Fix crash when closing session or starting a new session while

   calculating alignment of multiple audio files

 - Fix crash when running certain plugins that call for

   frequency-domain input at non-power-of-two block sizes

 - Fix wandering left edge of measure-tool rectangle while dragging

   out the area

 - Ensure that plugin stderr debug output is logged to the SV log file

Changes in Sonic Visualiser 3.2.1 (07 Jan 2019) since the previous release 3.2:

 - Fix failure to record from built-in microphone on macOS 10.14

   (caused by lack of microphone permission request text)

 - Fix crash when closing SV or starting a new session during recording

 - Fix crash on exit in some builds that disable OSC support

 - Fix flashing effect when scrolling certain configurations of colour 3d

   plot layer leftwards

Changes in Sonic Visualiser 3.2 (07 Dec 2018) since the previous release 3.1.1:

 - Add ability to zoom closer than one sample per pixel, so as to see

   the interpolated signal level between samples

 - Add oversampling control to the spectrogram and spectrum layers

 - Highlight and label frequency peaks in the spectrum as the mouse

   rolls over them, when enabled in the parameter area

 - Add feature to convert and import audio from a CSV data file

 - Add some new colour maps, and restore the old Blue on Black one

 - Speed up spectrum rendering at high resolutions

 - Fix failure to pass Nyquist bins correctly to

   frequency-domain-input Vamp plugins in some circumstances

 - Fix sometimes incorrect shortcut associations for new-layer menu

   items

 - Various other rendering improvements and bug fixes

Changes in Sonic Visualiser 3.1.1 (14 Aug 2018) since the previous release 3.1:

 - Fix failure to record correctly into an empty session with certain

   audio drivers

 - Fix failure to run LADSPA plugins at all, except with some unusual

   path layouts

 - Fix failure to silence sonified notes when rewinding backwards or

   jumping back from a loop endpoint

 - Fix macOS .dmg image so as to use older HFS+ filesystem for compatibility

Changes in Sonic Visualiser 3.1 (14 July 2018) since the previous release 3.0.3:

 - Add Plugins tab to Preferences dialog, from which you can review

   the plugin load paths and see which plugins were loaded from which

   locations, and also customise load paths (though the various path

   environment variables are still supported)

 - Stream the export of audio data and other CSV data so that

   very large exports don't hang the UI or run us out of memory

   (thanks to Lucas Thompson)

 - Ensure vertical scale appears for auto-align layers when there is

   nothing else to auto-align them to

 - Fix another long-standing Windows-platform wide-char/utf8

   conversion problem, with environment variable naming and contents

 - Improve handling of incomplete session loads, i.e. situations where

   the audio files referred to by a session could not be found -

   previously the session could be re-saved immediately thus losing

   the audio reference; now at least we disable Save (enabling only

   Save As) and show a warning

 - Update pane and layer menu shortcuts so that the

   waveform/spectrogram/etc shortcuts (Shift+G etc) operate on the

   source model in the currently-selected pane rather than the main

   model. This is a backward-incompatible change but is a far more

   intuitive way for the function to work

 - Use dark background for bright colours in time-value/note/etc

   layers as well as e.g. waveforms - this is how it was always

   "intended to" work, but it is a backward-incompatible change

 - Make "Select All" select the whole span of everything that exists,

   not just the main model

 - Add horizontal scale to Spectrum layer

 - Improve spacing and labelling of vertical log scales

 - Update build system for better Cap'n Proto version support and to

   use Repoint for code management in the repository

 - Various other bug fixes

Changes in Sonic Visualiser 3.0.3 (25 May 2017) since the previous release 3.0.2:

 - Improve decisions about where and how to label vertical scales

 - Update build support material and documentation to reflect the

   official release of Cap'n Proto 0.6 (which we can now use rather

   than depending on git builds)

Changes in Sonic Visualiser 3.0.2 (25 Mar 2017) since the previous release 3.0.1:

 - Fix crash when changing parameters for spectrum view

 - Fix incorrect measure tool crosshairs in spectrum view

 - Update Russian and Czech UI translations (thanks to Alexandre Prokoudine

   and Pavel Fric respectively)

Changes in Sonic Visualiser 3.0.1 (12 Mar 2017) since the previous release 3.0:

 - Fix crashes with MIDI devices and speedup/slowdown control on Windows

 - Update MIDI input driver layer

Changes in Sonic Visualiser 3.0 (07 Mar 2017) since the previous release 2.5:

 - Add ability to record audio, and ability to change the audio device

   for playback or recording in the preferences

 - Add complete support for high-resolution (Hi-DPI or retina)

   displays, including for layer data rendering as well as UI controls

   and icons. This makes the biggest difference when using a retina

   Mac, on which previous versions did not render layer data at retina

   resolution, but it also improves scaling and rendering of UI

   elements on Hi-DPI displays on Windows and Linux

 - Add ability to export scalable (SVG) image files

 - Run plugins in a separate process, so that if a plugin crashes, it

   no longer brings down Sonic Visualiser with it. In every other

   respect the behaviour should be unchanged

 - Scan plugins on startup in a separate process, and report on any

   that crash or won't load

 - Add ability to open, display, and analyse very long audio files (of

   more than 2^32 sample frames)

 - Change mp3 file loading so as to compensate for encoder/decoder

   delay and padding (using "gapless playback" logic). While this is a

   real improvement, unfortunately it does mean that the initial

   padding in mp3 file load has changed from previous versions, which

   may mean some sessions saved in previous versions are no longer

   correctly aligned. It's not a great idea to use mp3 as a file

   format of record, because of differences like this between

   decoders. The previous behaviour is still available as a preference.

 - Add new Hybrid normalisation type for spectrogram and colour 3d

   plot layers. This normalises each column to its peak value and then

   scales the normalised values by the log of the peak in order to

   restore some distinction in scale between columns with different

   levels. It can provide quite visually clear results.

 - Add function to subdivide time instant layers into regular

   intervals (and its inverse)

 - Add new preference for default colour scales

 - Add a basic ability to zoom (in the frequency axis) to the spectrum

 - Switch to using combined level/pan controls in layer property boxes

   and for the main volume control

 - Make CSV file reader better able to handle files with varying

   numbers of columns

 - Fix a number of problems on Windows with loading and saving some

   file formats to filenames not representable in system codepage

 - Add "What's New" dialog

 - Finally switch the Windows build to 64-bit by default (with

   adapters to run either 32- or 64-bit plugins)

Changes in Sonic Visualiser 2.5 (23 Oct 2015) since the previous release 2.4.1:

 - Add unit-converter dialog, for converting between various pitch and

   timing units

 - Fix failure to reload note layers from session file

 - Use a more sensible scale for the play-speed dial

 - Fix crash when importing very wide CSV files

 - Fix generation of wrong layer type from some CSV files

 - Fix failure to export last instant in a time-instant layer

Changes in Sonic Visualiser 2.4.1 (01 Oct 2014) since the previous release 2.4:

 - Fix a crash when rendering certain colour 3d plot layers

Changes in Sonic Visualiser 2.4 (01 Sep 2014) since the previous release 2.3:

 - Add support for left/right scrolling using a two-finger touchpad

   gesture (where available)

 - Make the octave numbering into a configurable option, and change

   the default. Previously Sonic Visualiser labelled middle-C as "C3";

   now it labels middle-C as "C4", a more common standard in the world

   outside MIDI sequencer software. The previous system is available

   as an option in the Preferences. This affects only the visible

   labels: there is no change to analysis or to the file format

 - Sonify time-value layers. Any time-value curve whose scale unit is

   set to Hz will now acquire a playback toggle control; this control

   is off by default, but if it is switched on, the curve will be

   played back using a variable-frequency sound generator

 - Add support for playback of note layers with non-MIDI frequencies

   (formerly the note playback was limited to exact MIDI pitch)

 - Change the default playback sample for note layers from piano to an

   electric piano with sustain. The piano sample is still available,

   and any sessions saved using it should continue to use it

 - Add a cancel button for Vamp plugin processing: currently,

   cancelling a transform results in a part-complete layer rather than

   removing the results

 - Add keyboard shortcuts to cycle the current layer (in addition to

   the existing ones to cycle the current pane)

 - Fix various bugs related to layer ordering: layer tabs re-ordering

   themselves randomly when new layer added, layers being ordered

   randomly when saving and reloading a session

 - Fix incorrect interaction with non-Unicode usernames when creating

   temporary and template directories on Windows

 - Shade the start and end of the main audio file, to make them easier

   to see for files that start or end in silence

 - Speed up rendering and scrolling in time-value layers

 - Make it possible to import CSV files directly into Note layers by

   adding Pitch as a data type in the CSV file import dialog

 - Fix play pointer jump to wrong frame when clicking on row in the

   layer edit dialog

 - Fix problems with keyboard shortcuts when using Qt5 on OS/X. This

   is the first release in which the official builds use Qt5 for all

   platforms.

Changes in Sonic Visualiser 2.3 (12 Dec 2013) since the previous release 2.2:

 - Add a startup welcome dialog that also explains what SV makes

   network connections for and allows user to forbid them

 - Add "Export Audio Data" feature

 - Show piano keyboard scale in note and time-value layers as well

   as spectrogram, where vertical scale is log Hz; also show

   numerical scale in note and region layers when not auto-aligned

 - Speed up CSV file import and avoid showing crazily wide window

   for CSV file format dialog when file has lots of columns

 - Fix incorrectly saved window geometry when exiting from maximised

   state

 - Reduce number of timer wakeups when idle

 - Add American English translation and make choice of translation

   into a preference (defaulting to system locale)

 - Permit installation to non-default location with Windows installer

   build

Changes in Sonic Visualiser 2.2 (31 July 2013) since the previous release 2.1:

 - Build with support for hidpi ("retina") text on OS/X

 - Fix very slow analysis when using Ogg or FLAC files decoded

   via libsndfile

 - Fix inaccurate scale auto-align between time-value layers and

   others

 - Fix failure to open files specified on command line (or via

   Open With) on Windows

 - Reset cyclical counters and switch back to navigate mode when

   a new session is started

Changes in Sonic Visualiser 2.1 (16 May 2013) since the previous release 2.0.1:

 - Fix incorrect handling of FixedSampleRate outputs (Vamp SDK fix)

 - Make it easier to see results from transforms that return a single point

 - Make labelling clearer on time-value layers

 - Add discrete-curve mode for time-value layers (for curves with gaps)

 - Update code to build against Qt5

Changes in Sonic Visualiser 2.0.1 (07 Mar 2013) since the previous release 2.0:

 - Fix incorrect samplerate in reading m4a files on OS/X

Changes in Sonic Visualiser 2.0 (16 July 2012) since the previous release 1.9:

 - Support 64-bit builds on OS/X (using CoreAudio instead of

   obsolete QuickTime audio file reader)

 - Simplify RDF reading and fix some bugs. Now requires Dataquay

   (http://breakfastquay.com/dataquay/) rather than using Redland

   directly. Release builds use Sord/Serd rather than Redland

 - Add a fullscreen mode on the F11 key

Changes in Sonic Visualiser 1.9 (10 Oct 2011) since the previous release 1.8:

 - Add session templates; save session as template; apply template to

   session

 - Tidy up the file open logic so as to remove the dialog asking how

   to open a file, where possible

 - Various bug fixes.

Changes in Sonic Visualiser 1.8 (08 Apr 2011) since the previous release 1.7.2:

 - Sonic Visualiser now registers as a file type handler on OS/X,

 providing better integration with the desktop generally (Dan Stowell)

 - There is a new function to toggle all Time Rulers at once (key #)

 - The CSV import dialog has been overhauled, allowing more flexible

 selection of purpose for each column

 - Text overlays are now easier to read on dark backgrounds

 - Hidden layers are now ignored when exporting an image (Dan Stowell)

 - A crash when starting a new session or exiting the application

   after loading a session with saved alignment data has been fixed

 - The duplication of right-button menu functions when multiple files

 were loaded has been fixed

 - The layer-add menu functions now have shortcuts (Dan Stowell)

 - The codebase has been reorganised into libraries and a configure

 step added.  It should be easier to build and maintain on OS/X and

 Linux than previously, although it won't make much difference on

 Windows.

 - A Czech translation is now included (thanks to Pavel Fric).

Changes in Sonic Visualiser 1.7.2 (05 May 2010) since the previous release 1.7.1:

 - The time-value layer now has an origin line and an option to

 show derivatives (change from one point to the next) rather than

 raw values

 - A static initialiser race has been fixed, possibly fixing an

 occasional crash on startup in Windows

 - A crash when pressing Play straight after New Session has been

 fixed

Changes in Sonic Visualiser 1.7.1 (22 Oct 2009) since the previous release 1.7:

 - The RDF importer does a better job of assigning labels to layers,

 layers to panes, and values to labelled regions

 - Interactive editing in the Text layer benefits from the same

 improvements as made in 1.7 to Note and Region layers

 - The layer data editor window has a text search feature

 - The main window status bar now shows the last label to have passed

 the playback position in the current layer, at the right end of the

 status bar

 - The Russian translation has been updated (thanks Alexandre)

Changes in Sonic Visualiser 1.7 (05 Sep 2009) since the previous release 1.6:

 - A new "Insert Item At Selection" function on the Edit menu

 can be used to create Note and Region layer items whose time

 extents correspond to the current selection(s)

 - Interactively editing points in the Note and Region layers

 now works much more smoothly

 - SV can now import MIDI files that use SMPTE timecode for event

 timing (importing MIDI files using with the more common

 timebase-based timing was already supported)

 - Time values throughout the display may optionally be shown in

 seconds and frames at various frame rates

 - A crash on exit in Windows has been fixed

 - A very unobtrusive user survey is now included

 - Various other bug fixes.

Changes in Sonic Visualiser 1.6 (22 Jun 2009) since the previous release 1.5:

 - The Colour 3D Plot layer now supports logarithmic vertical

 scale and linear interpolation options.

 - A new colour scheme (High Gain) has been added for spectrogram

 and Colour 3D Plot, which improves readability for some data.

 - Further performance improvements have been made to Colour 3D

 Plot.

 - Various other bug fixes.

Changes in Sonic Visualiser 1.5 (16 Mar 2009) since the previous release 1.4:

 - You can now insert time instants, time values, and notes using

 a MIDI device during playback.  If a time value or note layer is

 current it will be used for insertion (giving a value equal to

 the pitch class, or the played note, respectively); otherwise an

 existing or new time instants layer will be used just as it is

 when inserting instants using the PC keyboard.  Using a MIDI

 device should give better timing than using the PC keyboard.

 - There is a new Activity Log window with a (purely informative) list

 of events and user interactions that happen while SV is running.

 - The spectrogram has somewhat improved graphical scaling, and

 this is now the default (being much faster than the 4x oversampled

 method).  The previous default is still available as a preference.

 - Visualisation of very dense colour plots (such as spectrograms

 calculated by plugins) is substantially faster in this release.

 - Spectrogram display is now faster in many circumstances.

 - Alignment using the MATCH plugin is faster on OS/X than before.

 - SV will take into account RDF plugin descriptions, if available,

 in order to make somewhat better decisions about display of plugin

 outputs (for example, placing segmentation data into a layer with

 segmentation plot type).

 - You can now switch layers by clicking on the spare area at the left

 end of the pane that is also used for the current pane indicator.

 - The vertical black lines dividing segments in the time value

 layer's segmentation plot style are now optional.

 - Several widget layout bugs on OS/X have been fixed.

 - Several serious crashing, deadlock, and data corruption bugs have

 been fixed.

Changes in Sonic Visualiser 1.4 (05 Dec 2008) since the previous release 1.3:

 - SV now has a Region layer type, used for display of features with

 durations.  It also supports Vamp v2.0 plugins that provide durations

 for features.

 - Layer data can now be imported from RDF described using the Audio

 Features Ontology, as well as from the existing text file types.  SV

 can also export annotation layer data to RDF/Turtle, although in a

 somewhat simplistic manner at present.

 - You can search for transforms by text in the new "Find a Transform"

 dialog.  This searches both installed plugins, and plugins that have

 not been installed but that have descriptions available on the

 semantic web.

 - You can now zoom and scroll vertically in the time-value, note,

 and colour 3d plot layers.

 - Sonic Visualiser can now load sessions from uncompressed XML files

 as well as its own compressed-XML .sv format.  Files with extension

 .xml that contain suitable session data will be loaded as sessions.

 Note that .xml extension files still do not show up in the default

 file load filter.  This is intentional, as there may be any kind of

 data in them -- if you want to load uncompressed session files from

 XML, you need to know you're doing it.

 - Several crashes and other bugs have been fixed.

Changes in Sonic Visualiser 1.3 (10 Jul 2008) since the previous release 1.2:

 - There is a new spreadsheet-style data viewer and editor for

 viewing and editing the data in some types of annotation layer.

 - Alignments are now saved to the session file.

 - The spectrogram layer is usually somewhat faster than it was.

 - You can now hold Shift while dragging to move an item, in order

 to override the initial drag resistance introduced in 1.2.

 - The gross mis-labelling of time lines in the ruler has been fixed.

 - There is a new, somewhat provisional PulseAudio output driver.

 - Several other bug fixes.

Changes in Sonic Visualiser 1.2 (20 Feb 2008) since the previous release 1.0:

 - SV now supports time-alignment of multiple performances of a work

 loaded at the same time.  This option is enabled when the MATCH Vamp

 plugin is installed.  When alignment is switched on and more than one

 audio file is open, SV will assume that all open files are

 differently timed performances of the same work, and will calculate

 time alignments for them.  Playback will then play only a single file

 at a time, and the playback cursors in other files will track at the

 varying speeds to try to ensure that each is at the same point in the

 underlying score.  This enables effective comparison of several such

 files, as well as a meaningful way to switch from one performance to

 another during playback (ensuring that the switch happens at the

 correct point in the performance being switched to).

 - There is a new Image layer, which can display images from the

 local filesystem or retrieved via HTTP or FTP.

 - A new measurement tool has been added.  With the measurement tool

 selected, dragging in a pane draws a rectangle labelled with the

 scale values for its start and end corners and its size.  You can

 have any number of measurements present at once; they are associated

 with the top layer, their scale values depend on the scale for that

 layer, and they are only shown when that layer is at the top and the

 measurement tool is active.  Measurements are saved and reloaded in

 the session file.  Drawing measurements can be undone and redone, and

 a measurement can be deleted by hitting Del when highlighted.  Note

 that the measurement tool shows the scale values associated with the

 pixel positions of the mouse when dragging, not any values associated

 with actual features present in the audio or its analysis (e.g. the

 values are not rounded to the nearest spectrogram bin).

 - You can double-click using the measurement tool in the spectrogram

 to get an instant measurement rectangle for a feature.  This is a

 purely graphical feature that works by calculating the boundary of a

 contiguous region of pixels "similar to" the one you double-clicked

 on; it does not use audio analysis.  Adjusting the gain and colour

 scheme etc of the spectrogram will (by design) affect the

 measurements obtained this way.

 - The spectrum can now optionally show frequency estimates of peaks

 aligned with a piano keyboard along the horizontal axis (this needs

 some refinement).

 - The harmonic cursor in the spectrogram has moved from the Select

 tool to the Measurement tool.  There is now a similar harmonic cursor

 in the spectrum.  Both of them show more information as text

 alongside the cursor than previously.

 - There is a new Erase tool for erasing individual points from an

 editable layer.

 - Several keyboard shortcuts have changed -- all of the Alt+key

 shortcuts now either use Ctrl or a plain keypress with no modifier,

 to avoid clashes with window manager shortcuts and to make them

 easier to use and remember

 - The playback controls are now in a Playback menu as well as the

 toolbar.

 - There is a new key and mouse control reference under Help (or press

 F2).

 - You can double-click on a pane in navigate mode to jump to a time.

 - All of the single-colour layers (waveform, time values etc) now

 allow you to define your own colours as well as using the built-in

 set.  The colour of a layer is now shown next to its name on the pane.

 - When you add a new single-colour layer it will use a default colour

 that is not yet in use in another layer (if there is one).

 - Single-colour layers can now optionally have black backgrounds (with

 a set of lighter colours in the default colour palette that use black

 backgrounds by default).

 - There's a new Printer colour scheme in the spectrogram with only a

 small number of grey shades.

 - Vertical zoom in a log-scaled spectrogram is much more intuitive;

 it now leaves the point that was in the centre of the visible area in

 the centre after zoom, instead of the point that was in the centre of

 the linear range corresponding to the visible area.

 - You can now turn a colour 3d plot layer upside down by clicking the

 Invert Vertical Scale button.

 - There's a new Layer Summary window which shows the panes and

 layer data in a tree layout.  This is very simplistic at the moment.

 - Each pane now has an [X] button at its top left, which removes that

 pane when clicked.

 - There's a new Solo play mode toggle button; when active, only the

 currently selected pane is played.  This is also the default when

 time alignment is in use.

 - Rewind/ffwd now stay confined to the selection if Play Selection is

 enabled; also, the rewind and ffwd "one step" buttons are now enabled

 even if there is no time instants layer for them to align to (they

 align to the time ruler instead and so jump in steps of a size

 dependent on the zoom level).

 - You can now export note layers to MIDI.

 - MIDI note velocity is partially supported.  Note velocity is

 retained when importing and exporting MIDI and is used in playback,

 but it is not yet shown in the display and cannot yet be edited.

 - You can now drag-and-drop files (of whatever type) onto SV from

 other programs such as file managers or web browsers.

 - mp3 files (and Ogg, but they aren't supported on Windows at the

 moment) are now decoded in a background thread so you can see the

 start of the track without waiting for the rest to decode.

 - Mac builds of SV can now load AAC/mp4 files and anything else

 supported by QuickTime.

 - There is now an option to resample audio files on import if they

 don't match the samplerate of the first file loaded.  By default this

 is switched off, as it affects the visible waveform.  The default

 behaviour is unchanged (play at the wrong rate).  There is still no

 option to handle multiple rates "correctly" (i.e. by resampling

 on playback and showing the waveforms at different resolutions

 according to each one's underlying rate) and there probably never

 will be.

 - SV can now open .m3u playlist files, though it's a hazardous thing

 to do as it simply loads all the files in the playlist at once.

 - SV now has various options for how to number tapped time instants

 (bar/beat, plain counter, time in seconds, tempo etc).

 - The official builds use Qt 4.3, which fixes some nasty

 bugs in the file dialog that the version 1.0 builds suffered from.

Changes in Sonic Visualiser 1.0 (10 May 2007):

 - First official release of Sonic Visualiser