spwave 0.9.0-1

spwave is a cross-platform audio editor designed for research and advanced analysis. It supports a wide range of audio formats, including WAV, AIFF, MP3, Ogg Vorbis, FLAC, ALAC, raw PCM, and more via plug-ins. spwave offers precise editing tools such as zoom, crop, fade in/out, gain adjustment, and region extraction. It enables detailed spectral and phase analysis and supports unlimited undo/redo. Users can drag and drop files, edit metadata, save labeled regions, and view multiple synchronized waveforms. Internally, spwave processes audio in 64-bit precision, ensuring high accuracy. It runs on Windows, macOS, and Linux, making it a reliable and flexible tool for audio research and editing.

spwave has following features:

Support for multiple platforms: Windows, macOS, Linux (Motif, gtk), etc.
Support for WAV, AIFF, MP3, Ogg Vorbis, FLAC, ALAC, raw, and text files by using plug-ins.
Support for many bits/samples: 8bits, 16bits, 24bits, 32bits, 32bits float, 64bits double.
Converting the sampling frequency and the bits/sample of a file.
Playing, zooming, cropping, deleting, extracting, etc. of a selected region.
Fade-in, fade-out, gain adjustment, channel swapping, etc of a selected region.
Editing file information that supports comments of WAV and AIFF, and ID3 tag of MP3.
Analysis of a selected region using several analysis types, e.g. spectrum, smoothed spectrum, phase, unwrapped phase and group delay.
Undoing and redoing without limitation of the number of times.
Waveform extraction by drag & drop.
Opening files by drag & drop.
Autosaving of selected regions (you can do this by drag & drop also).
Saving positions and regions as labels.
Viewing some waveforms and setting regions synchronously.
Almost all processing is 64 bits processing internally.

Supported Formats:

Read/Write: WAV, AIFF, AIFC, CAF, MP3, Ogg Vorbis, FLAC, ALAC (.caf, .mp4), WMA (Windows), APE, AU/SND, PARIS, NIST, IRCAM, raw PCM, text.
Read-only: MPEG-2 Layer 3 MP3, RMP files with VBR support.

With 64-bit internal processing, autosave capabilities, and synchronized multi-view waveform editing, spwave is a solid tool for anyone handling complex audio editing or acoustic research.

spwave 0.9.0-1 changelog:

Implemented CQT spectrum and CQT spectrogram (beta version).
Implemented piano-key display for spectrum/spectrogram view.
Implemented indication of musical note name in cursor information for spectrum/spectrogram view.
Fixed a bug that spectrogram view after zoom-in with large factor sometimes freezes.
Fixed a bug that scroll and zoom-out in spectrogram view after zoom-in with large factor do not work correctly.
Fixed a bug that spectrogram view provides sometimes wrong time information.
Fixed a bug that plugin errors sometimes cause a crash.
Fixed a bug that the color of grid lines is wrong in printing.
Optimized layout of spectrogram view for printing.
Enhanced the function of waveform cropping from label information.
Fixed a bug that some items in the preference dialog related to labels do not work.
Added some items related to the region label in the preference dialog.
Fixed a bug that drawing selected region in the log-frequency axis does not work correctly.
Added partial support for the dark mode of Windows (the menu bar and the menus).
Fixed a bug that the cursor to indicate current calculation position of spectrogram is sometimes not shown.
Changed drawing of cursor information into that with white background so as to make the information legible.
Fixed a bug that moving to the head by scrolling the overview display sometimes fails.
Added feature of alignment of the view region between spectrum view and spectrogram view.

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