A bug was found in the MidiPlay module in the previous release (and in the first couple of days of the current release!). On single-CPU machines only this caused certain midifiles to 'stall' at the beginning. This is fixed (and now in the archive).

Another update to the package was made on 10 December. The Weaver itself -- now 3.0.1 -- and the 'Switcher' and 'TriggerSwitch' modules were replaced to fix some bugs (and improve the latter a bit).

A new mechanism for enabling and disabling paths within a diagram controlled by 'Director' messages was added in the last release. At the same time most of the module Control Panels were improved, and new modules for things like Control Change were added.

The distributed package, by the way, has no module for recording MIDI files. You can get such a module to add to your set by sending in the shareware fee...

Caution to x86 users! There is a bug in the BeOS R4 midi handling that makes a real mess of many MIDI streams that otherwise ought to work! (PPC users are not affected.) The problem has been fixed in BeOS 4.5.

These modules have been enhanced:

• Program --- does not auto-send its state when a configuration is loaded until loading is complete. (Previous version sent it when its state was set up at some arbitrary point in the loading sequence.)
• Controller --- same as Program.
• SetRPN -- same as Program.
• VelAdjust -- Has a new 'Threshold' slider that is subtracted from all Note-On velocities. (Values below this are set to minimum.)
• VelMarker -- now marks the Note-Offs that match marked Note-Ons, so that they get diverted in the same way.

• NoteOffType --- converts between the two types of Note Off defined by the MIDI standard, in case hardware does not respond to one of them. (Probably totally unneeded!)
• MidiMon -- Outputs a text description of each event (StreamWeaver format). Must be passed to e.g. StreamView for viewing.
• StreamView -- imported from the StreamWeaver suite for those who don't have it.

• MidiConn --- MIDI Hardware Interface (replaces 'Midi 1' and 'Midi 2')
• Controller -- Sends MIDI Controller Events
• SetRPN -- Sends 'Registered Parameter Number' setting sequences
• ControlMarker -- Marks events targeted at a specific Controller Number
• IndexRange -- Marks all (2 or 3 byte) events according to their 2nd byte
• ValueRange -- Marks all 3 byte events according to their 3rd byte
• UseIndex -- Generates Director messages from MIDI index byte

Here is the original set (most updated since) from release 1.1a:

• MidiPlay --- Reads standard Midifiles
• WvrSynth --- Drives internal BeOS Synth

• MidiChannel --- Sets the channel of events passing through
• Transpose --- Shifts notes up or down a set amount
• VelAdjust --- Changes Note Velocity value
• NoteOff --- Turns Note-Ons into Note-Offs (special purpose)
• OneNote --- Reduces all Note events to a single set note (special purpose)

• Program --- Sends Program-Change events
• PitchBend --- Sends Pitch-Bend events

• KeyMarker --- Marks selected notes of the scale
• KeyRange --- Marks range of notes
• ChanMarker --- Marks events on selected channels
• VelMarker --- Marks Note-On events above selected velocity
• MsgMarker --- Marks selected types of MIDI events
• ClearMarks --- Removes unwanted marks
• Splitter --- Diverts events onto second path according to marks

• MidiDelay --- Advances time value of events by set amount
• TimeSort --- Sorts and delivers events according to their time value
• DeGlitch --- Prevents "re-triggering" of note events when streams are merged

• JoinPaths --- Null element for merging
• Switcher -- Sends event streams to different paths as directed
• TriggerSwitch -- Generates 'Director' messages for the Switcher
• BridgeIn --- Connection into Composite Element sub-diagram
• BridgeOut --- Connection out of Composite Element sub-diagram

Requirements