csound/csound 6.08.0

Csound 6.08

on GitHub

As usual there are a number of opcode fixes and improvements, but the
major changes are in the language structures. First the score language
has all-new treatment of macros and preprocessing, bringing it in line
with those of the orchestra. The parsing of the orchestra has had a
number of fixes as outlined below.

A major, and not totally compatible change as been made in reading and
writing array elements. The rate of the index now often determines
the time of processing; check the entry below under Orchestra. This
simplifies much code and seems to capture expectations; the earlier ad
hoc code had many anomalies.

Also as usual there are a number of new opcodes and internal fixes
to memory leaks and more robust code.

-- The Developers

USER-LEVEL CHANGES

New opcodes

• dct -- Discrete Cosine Transform of a sample array (type-II DCT)
• getftargs -- copy arguments of a gen to an S-variable
• mfb -- implements a mel-frequency filter-bank for an array of input
  magnitudes

New Gen and Macros

• quadbezier -- generating Bezier curves in a table

Orchestra

• The character ¬ is now correctly treated as a variant of ~ for bitwise not
• Lexing bug which could corrupt strings fixed
• Ensure no newlines in string-lexing
• Small improvement in reported line numbers
• Better checking of macro syntax
• Improved parsing of setting of labels
• Added error handling for unmatched brackets for UDO arg specification
• Check that #included file is not a directory
• Deeply nested macro calls better policed
• For years Csound has fixed the pitch of A4 at 440Hz. Now this can be set in the header using the new r-variable A4, and also read with that variable
• Floating point values can use e or E for exponent
• Array access semantics have been clarified:
  • i[i] => reading at i-time and perf-time, writing at i-time
    only.
  • i[k] => reading at perf-time, writing yields a runtime error
  • k[i], k[k] => reading at perf-time, writing at perf-time
  • a[i], a[k] => reading at perf-time, writing at perf-time
  • other (S[], f[]) => reading and writing according to index type (i,k).

In particular, i(k[i]) will continue not to work, as before, but the new operator
i(k[],i) is provided to cover this case.

• xout validation no longer fails when constants are given

Score

• New code to handle macros and other preprocessor commands. Brings it
  into line with orchestra code
• New score opcode C introduced as a way of switching automatic carry off (C 0)
  or on (default) (C 1)

Options

• The tempo setting can now be a floating point value (previously fixed to integer)
• New option --version prints version information and exits

Modified Opcodes and Gens

• Problems in centroid fixed.
• Better treatment of rounding in printks
• OSC extended to include multicast
• Faust opcodes brought up to date with faust
• oscil1 and oscili can take a negative duration
• fout opcode documentation clarified
• Release time in mxadsr fixed
• centroid opcode extended to take array inputs in addition
• ptable opcodes are now identical to table family
• ftgen now as array input option
• subinstr can now have string arguments
• the i() format is extended to work on k-rate arrays with the first
  argument being an array, followed by the indices
• monitor opcode can now write to an array

Utilities

• pvlook now always prints explicit analysis window name

Frontends

• icsound:
• csound~:
• csdebugger:
• HTML5
  • csound.node: Implemented for Linux, minor API fix.
  • pnacl: Added compileCsdText method to csound object
  • Emscripten:
• CsoundQT:

General Usage

• Checking of valid macro names improved
• #undef fixed

Bugs Fixed

• Fixes to prints in format use
• jitter2 reworked to make it more like the manual.
• oscbank has had multiple fixes and now works as advertised
• bformdec1 with arrays and type 4 fixed
• Bug in pvsceps fixed
• In various formatted print opcodes extra trash characters might appear -- fixed
• Assigning variables with --sample-accurate could give unexpected results; this is believed fixed now
• padsynth square profile fix, and opcode prints less depending on warn level
• gen31 fixed
• gen41 fixed
• Bug in sensekey fixed
• A number of issues in centroid fixed
• An internal miscalculation of variable sizes that only affected 32bit
  architectures fixed

SYSTEM LEVEL CHANGES

System Changes

• New score lexing and preprocessor
• MAC line endings now work again
• System information messages (system sampling rate, etc) are now directed to stdout
• rtjack reworked to deal with names and numbers
• The version printing now includes the commit as so the developers
  know which patches have been applied

API

• API version now 4.0
• Now supports named gens
• fterror now in API
• API functions SetOutput and GetOutputFormat fixed
• Many API functions now use const where appropriate
• Messages can now be directed to stdout from the API by using CSOUNDMSG_STDOUT attribute
• New Lisp CFFI and FFI interfaces tested with Steel Bank Common Lisp (64 bit CPU architecture), runs in separate thread
• ctcsound.py, a new FFI interface for Python was introduced in version 6.07. It is now the recommended interface for Python,
  csnd6.py being deprecated.

Platform Specific

• iOS
• Android
  • Multichannel input and output allowed
• Windows
  • csound64.lib import library added to Windows installer
• OSX
  • Minor issues with installer fixed
• GNU/Linux