apeCsound

apeCsound brings the full power of Csound 7, one of the most complete sound synthesis and signal processing languages ever created, inside your music apps.

Write or paste any Csound orchestra, press Apply, and apeCsound turns it into an Audio Unit (AUv3) instrument or effect you can play, record and automate in GarageBand, Logic Pro for iPad, AUM, Cubasis, Loopy Pro and any other AUv3 host. It also runs as a standalone app.

THE CSOUND ENGINE, BUILT IN

Csound 7 is embedded in the app: nothing else to install
Thousands of opcodes: oscillators, filters, physical models, granular, spectral (pvs), FM, waveguides, reverbs, delays, OSC and much more
Process live audio from the host as an effect, or play it as a MIDI instrument
Audio channels follow the host layout automatically
Host transport available to your code as control channels: tempo, play/stop, position, time signature

PARAMETERS YOUR HOST CAN AUTOMATE

Describe sliders, switches, menus and XY pads directly in your .csd file
apeCsound builds the control panel for you and exposes every parameter (176 in all) to the host for automation and MIDI learn
Values are read in Csound with a simple chnget; chnset writes them back and moves the controls
Organise the panel in collapsible groups with a comment in the code
Snapshots: save, recall, rename and overwrite complete sets of values, stored with the session
Undo and redo for every change, with one shared history

LIVE CODING

Evaluate sends the selection, the current instrument block or a single line to the running engine, without recompiling: redefine an instrument while it plays, change a global value, trigger a score event
A dedicated Evaluate line for one-liners such as "i 2 0 1"

SEE WHAT YOUR CODE IS DOING

Monitor: every value written with chnset appears as a meter, a multi-bar card or a text line, with dB scale and history on request
Channels: a diagnostic list of every channel the engine knows, with type, direction, value and who writes it; channels that nobody writes are flagged and can be mapped to a parameter in one tap
Graphs: function tables and display signals drawn live, redrawn whenever a table changes
Console: all Csound messages and errors, with errors marked on the line in the editor

A CODE EDITOR MADE FOR CSOUND

Syntax highlighting with dark and light themes, line numbers and adjustable text size
Opcode completion that inserts the complete syntax, with outputs and optional arguments, in classic or modern (functional) style
Jump between arguments with Tab
Inline help bar showing the syntax of the opcode under the cursor, or the error on that line
Find and replace, comment/uncomment, smart indentation
Designed for touch: native-style selection handles, magnifier, edit menu and long-press caret navigation
Built-in link to the Csound reference manual

SESSIONS AND FILES

Open and save standard .csd files from Files, iCloud Drive or any document provider
Your code, parameters and snapshots are saved with the host project
Start from a ready-made template, a blank session or one of nearly 200 included examples
Import Cabbage and CsoundQt files: their widgets become parameters, their meters and displays show up in the Monitor

ACCESSIBILITY

Fully usable with VoiceOver: named controls, real menus, an accessible code editor and XY pad, complete keyboard navigation

Whether you are a sound designer, a composer, a teacher or a student, apeCsound turns your iPad and iPhone into a complete Csound workstation that lives inside your favourite music apps.