Software
Csound
Version
6.18.0
Release Date
Announcement
https://github.com/csound/csound/releases/tag/6.18.0

CSOUND VERSION 6.18 RELEASE NOTES

Mainly a bug-fixing release. Major new facility is MP3 (MPEG) audio
files are supported both for input and output in platforms where this is
supported by libsndfile.

-- The Developers

USER-LEVEL CHANGES

New opcodes

  • scanmap reads internal state of scanu

  • elapsedcycles, elapsedtime, eventcycles, and eventtime. See under
    "bugs fied" for detials.

New gen

Orchestra

Score

Options

Modified Opcodes and Gens

  • fix midi list printing to stdout part of the list.

Utilities

Frontends

Bugs Fixed

  • Fixed bug where fixed-point phase computation (in oscil family) was
    incorrect resulting in slight freq deviations in very low freq cases.

  • Fixed bug where freeing instr 0 caused memory issues in new
    compilations. Instr 0 is not freed until reset now.

  • Fixed a bug where opcode directory search was crashing Csound if HOME
    variable not set.

  • Fixed pol2rect array size setting.

  • OSCsend, OSCsend_lo and OSClisten can now work with OSC messages
    carrying no payload (as per spec and manual).

  • bug in sum fixed

  • 'pitchamd' opcode causes segmentation fault (macOS) (#1599)

  • fixed crash on channel setting with empty channel name

  • bug in ftloadk fixed (#1611)

  • qnan works even when compiled with fast arithmetic

  • Fix the flanger opcode for sample-accurate mode, where the xdel input was
    not being correctly offset.

  • elapsedcycles, elapsedtime, eventcycles, and eventtime introducd as
    fixed versions of timek, times, timeinstk and timeinsts but return
    the correct values instead of being one cycle late. This prserves
    backward compatability

SYSTEM LEVEL CHANGES

System Changes

  • Fix for issue #1613:
    Fixes the rtauhal module for all cases of multichannel output. Previously the
    module would not work correctly with some devices.

  • Csound now supports MP3 files for input and output through libsndfile (version 1.1.0 and higher).

Translations

API

External Plugin Code

Platform Specific

Bela:

Many changes to Bela csound. See bela web site for details

MacOS:

  • Universal build for x86_64 and arm64, backward compatible to MacOS 10.9

WASM:

  • fix sampleRate for single-thread worklet.