Bidule vs Csound

Bidule is a modular audio application for connecting modules to build instruments and effects. It runs as a standalone app on Windows and macOS and can also operate as a plug-in in compatible hosts. FFT modules split audio into frequencies and magnitudes for spectral processing. Bidule can play and record multichannel audio files with up to 64 channels and render ambisonic files offline. Users can save module collections as reusable groups, and free community groups are available through the in-app catalogue. MIDI devices can control mapped internal module parameters when connected to the graph. Its OSC server can control linked parameters, start processing, or open a .bidule file. Listed plug-in formats are VST2, VST3, and AU. The one-time price is 95.00 USD, and a fully functioning demo is available. However, the current standalone trial period has ended; Plogue says a new trial will be available with a new version. Plug-in versions are limited to registered users and require the standalone version to be installed and registered first.

Csound is a free sound and music computing system for creating music software and making music. Its uses include electroacoustic works, algorithmic jam sessions, app development, and game audio projects. The programming system offers more than 1,500 opcodes and supports traditional and functional syntax. Getting-started material demonstrates MIDI keyboard input, real-time audio input, synthesis, envelopes, and filtering. Csound code can run in a browser through the Csound Web IDE or be explored interactively in the FLOSS Manual without installing Csound. The project links frontends including Cabbage, CsoundQt, and Blue, plus wrappers or interfaces for JavaScript, Python, Unity, Android, and iOS. Downloads or packages are listed for Windows, macOS, Debian, Ubuntu, Fedora, Arch, Android, and Web Assembly. An iOS SDK is also linked, and the latest Csound 7 beta installers for iOS are available through the relevant GitHub Actions page. The download page notes that Apple or Windows may warn that Csound is not trusted because the project cannot pay their licensing costs. Support channels include mailing lists, a forum, Discord, Slack, and Stack Overflow.