ocenaudio Audio Editor

ocenaudio is a cross-platform, easy-to-use audio editing software for Windows, macOS, and Linux. Developed by a team based at the Federal University of Santa Catarina (UFSC) in Brazil, ocenaudio is built on the Ocen Framework, a powerful library for audio analysis and manipulation developed by the same team. The software is free for personal and commercial use. Key features: multi-track editing: edit multiple audio tracks simultaneously on a timeline. Mix, arrange, and layer audio clips. Real-time preview: all effects and filters are applied in real-time. Adjust parameters and hear the results instantly without rendering. Effects: built-in audio effects including equalization (graphic and parametric EQ), compressor, limiter, expander, noise gate, reverb, delay, chorus, flanger, pitch shift, time stretch, fade in/out, normalize, reverse, and amplitude adjustment. VST plugin support: use third-party VST2 and VST3 plugins on all platforms (Windows, macOS, Linux). This provides access to thousands of additional effects. Spectrogram: visual frequency analysis with selectable FFT size, window function, and color scale. Edit audio directly on the spectrogram view. Selection tools: select portions of audio by time, frequency, or both. Multi-selection support for applying effects to specific regions. Audio generation: generate tones, silence, white noise, pink noise. Marker and labels: add markers and text labels to specific points in the audio for navigation and annotation. Bookmark frequently accessed segments. File format support: open and save WAV, MP3, WMA, OGG, FLAC, AAC, and many other formats. Batch processing: apply the same chain of effects and format conversion to multiple files at once. Memory efficient: handles large audio files (several hours long) efficiently. C++. Free.