Truncate prioritization system for multi channel electronic music generator

An electronic musical instrument comprising:

• tone data generating means for generating tone data each representative of a tone to be generated;
• tone generating means having a plurality of tone generating channels;
• assigning means for assigning said tone data to said tone generating channels, each of said tone generating channels being assigned one of said tone data;
• said tone data generating means further generating new tone data representative of a new tone;
• and
• channel detecting means for detecting, in accordance with said tone data, at least one of said tone generating channels which is to be prevented from a new assignment of said new tone data;
• said assigning means further assigning said new tone data to one of remaining tone generating channels which are said tone generating channels except for said at least one of detected tone generating channel.

An electronic musical instrument comprising:

• tone data generating means for generating tone data each representative of a tone to be generated;
• tone generating means having a plurality of tone enerating channels;
• assigning means for assigning said tone data to said tone generating channels, each of said tone generating channels being assigned one of said tone data;
• said tone data generating means further generating new tone data representative of a new tone;
• truncate data storing means having storing portions corresponding to said tone generating channels for storing a group of truncate data;
• and
• new truncate data generating means responsive to said new tone data for generating new truncate data;
• said assigning means comprising channel designating means which designates a specified channel of said tone generating channels in acordance with said group of truncate data and further assigning said new tone data and said new truncate data to said specified channel and to a storing portion corresponding to said specified channel among said storing portions, respectively, thereby causing said new tone data and said new truncate data to be respectively substituted for the previously assigned tone data in said specified channel and the previously stored truncate data in a respective storing portion corresponding to said specified channel.

An electronic musical instrument comprising:

• tone data generating means for generating tone data each representative of a tone to be generated;
• tone generating means having first to Nth tone generating channels;
• assigning means for assigning said tone data to said tone generating channels, each of said tone generating channels being assigned one of said tone data and generating a tone signal represented by the assigned tone data;
• and
• detecting means for detecting redundant channels among said first to Nth tone generating channels to which the same tone data have been assigned and the number of such redundant channels;
• said tone data generating means further including means for generating new tone data representative of a tone to be newly generated, said assigning means including means for preferentially assigning said new tone data to one of the redundant channels when the number of redundant channels in a group of redundant channels having a same particular tone data, including the one redundant channel, is greater than or equal to a predetermined integer K (2.ltoreq.K.ltoreq.N-1) and when said new tone data is the same as the particular tone data assigned to the one redundant channel.

An electronic musical instrument comprising:

• mode selection means for selecting one of first and second operation modes;
• tone data generating means for generating tone data each representative of a tone to be generated;
• tone generating means having first to Nth tone generating channels and operating in one of said first and second modes;
• assigning means for assigning said tone data to said tone generating channels, each of said tone generating channels being assigned one of said tone data and generating a tone signal represented by the assigned tone data;
• and
• detecting means for detecting one or more of said first to Nth tone generating channels to which tone data representative of a specific range of tones is assigned;
• said tone data generating means further including means for generating new tone data representative of a tone to be newly generated, said assigning means being able to assign said new tone data to any one of said first to Nth tone generating channels when said mode selection means is selecting said first operation mode, said assigning means being blocked from assigning said new tone data to the one or more tone generating channels detected by said detecting means when said mode selection means is selecting said second operation mode.

A truncate prioritization system for determining which of a limited plurality of tone producing channels available to an electronic music generating instrument is to respond to a new tone request and thereby truncate a previously requested tone if such previously requested tone is still being produced, the system comprising:

• priority assigning means for producing and assigning a priority number to each of the limited plurality of tone producing channels available to the instrument;
• and
• designating means, responsive to the priority numbers produced by the priority assigning means, for designating which one of the tone producing channels will respond to the new tone request;
• wherein the priority assigning means includes a long duration sound recognizing means for recognizing one or more tones belonging to a long duration sound and assigning channels producing those one or more tones relatively high priority numbers so that the long duration sound will be protected from truncation.