Name: jl125535 Date: 06/20/2002 FULL PRODUCT VERSION : Java 1.3 or 1.4 on all Java platforms. FULL OPERATING SYSTEM VERSION :Windows 98/XP. ADDITIONAL OPERATING SYSTEMS :All Java Platforms, including Mac/Linux. EXTRA RELEVANT SYSTEM CONFIGURATION : Standard sound cards and Java Sound API (Java 1.3 & 1.4) A DESCRIPTION OF THE PROBLEM : Presently the Java Sound API does not support MIDI Tuning (microtonality). All pitches produced by the synthesizer are the standard 128 MIDI frequencies. I would like to see support added for realtime note tuning as described in the MIDI Tuning Specification from the MIDI Manufactures Association. This system uses System Exclusive Messages and is very flexible. I am familar with the Quicktime MIDI synthesizer implementation from past work and it provides a solution for microtonality by having both short and extended note events available in the Quicktime API. Quicktime Extended note events specifically handle microtonal notes. I have discussed this with ###@###.###, in the Sound API division at Sun and there is a solution that can be implemented. STEPS TO FOLLOW TO REPRODUCE THE PROBLEM : 1.Only the basic 128 MIDI frequencies are available in Java. 2.Pitch Bend shifts all notes on a channel, very ugly. 3.A single note is not tunable in realtime. EXPECTED VERSUS ACTUAL BEHAVIOR : Aside from the chromatic scale (equal temperment) all world music is essentially microtonal. Please see the Scala program and website for many more possible ways to tune a scale and produce music with. All 2600 present Scala scales should be possible with the Java sound synthesizer. The Scala website at http://www.xs4all.nl/~huygensf/scala/ has the necessary information and scales for microtonality (all 2600+ scales, not only the 1 chromatic scale used by MIDI and the present Java synthesizer). REPRODUCIBILITY : This bug can be reproduced always. CUSTOMER WORKAROUND : There is none, microtonality on a realtime note by note bases is not possible. The MIDI SysEx method implemented in the Sound API would be best, or an Extended event as in Quicktime. (Review ID: 153876) ======================================================================
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