User manual LEXICON MPX G2

[. . . ] 4 Request ·System Configuration Parameter Description · Parameter Type · Data Transfer "Learning" the MPX G2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Building a Parameter Description Database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Device Inquiry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 06 Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Other values which may appear in the parameter data packet should be ignored. LFOs through Envelopes (Bytes 722-843) The data for the LFOs, Arpeggiator, ADSRs, Random number generator, AB, Sample and Hold and the Envelope Generators are organized in a similar fashion to the effect parameter data. Otherwise, these parameters are accessed exactly as the effect parameters, including options. Sort Flags (Bytes 394-399, Parameter Type: 0x0115) Sort Flags consist of "effect types" (2 bytes) and "input types" (1 byte) (in that order). These define which to which sorting groups (database) the program will be assigned. The bit assignments for Effect types are: PITCH CHORUS EQ MOD DELAY AMBIENT CHAMBER GATE HALL INVERSE PLATE DUAL 28 0x0001 0x0002 0x0004 0x0008 0x0010 0x0020 0x0040 0x0080 0x0100 0x0200 0x0400 0x0800 Lexicon MPX G2 MIDI Implementation Details The bit assignments for Input types are: LIVE_PA VOCAL GUITAR KEYBOARD ACOUSTIC DRUMS TEMPO SOUND_FX 0x01 0x02 0x04 0x08 0x10 0x20 0x40 0x80 Audio Routing (Bytes 400-479) Audio Routing data defines how the audio data moves in and around the system for the current program. The audio routing is broken up into 8 blocks; one for each effect type, one for the input and one for the output. The effects blocks represent the signal flow into, through and out of the box (left to right on the Map and Order screens of the system). Each block consists of the following 5 one byte fields: 0 - Effect Type (Parameter Type 0x0146) 1 - Upper Input Connection (Parameter Type 0x0143) 2 - Lower Input Connection (Parameter Type 0x0144) 3 - Routing (Parameter Type 0x0145) 4 - Path Type These descriptions can be used for range limits, etc. . The Effect Type will always be one of the following: 0 - Pitch 1 - Chorus 2 - EQ 3 - Modulator 4 - Reverb 5 - Delay 6 - Input 7 - Output As the blocks represent signal flow through the box, the Effect Type of the first block will always be "Input" and the Effect Type"of the last block will always be "Output". Aside from that, the effects can be in any order with the condition that all of the effects types must always be used, and no single effect type can be used twice. Upper Input Connection and Lower Input Connection describe the way that the audio signal is fed to the respective inputs to the effect block. The following connection types are available: 0 - Stereo to Stereo 1 - Left to Left 2 - Right to Right 3 - Left to Left and Right (mono) 4 - Right to Left and Right (mono) If the block does not use the lower path, the input connection will be ignored but will become active if needed. Note that the input block "Upper" and "Lower" connections are place markers and are not actually used by the system. Given the number of blocks, the maximum number of merge /parallel blocks required is 3. SELECTED BLOCK IS ON A SINGLE PATH configurations selectable with KNOB preceding block upper merge upper · · lower split · · parallel merge 4. 5. 31 MPX G2 MIDI Implementation Details Lexicon SELECTED BLOCK IS ON A DOUBLE PATH configurations selectable with KNOB preceding block upper lower split parallel upper · · · · lower · · · · split parallel · · merge · · NOTES: 1. A block is on a single path unless it is in between a split and merge. If a split is inserted into a single path and there is no merge between it and the output block, the output block is automatically set to merge. If a split is inserted in front of a previously exisiting split, and there is no merge in between them, the previously existing split is changed to upper. If a merge is inserted into a double path and there is no split between it and the output block, then all following blocks are set to upper. If there is a split between the merge and the output block, then all blocks between the merge and the split are set to upper. When the routing configuration of a block is changed, its input and output connections should be reset to the default value, stereo. 6. Algorithm numbers (Bytes 480-491) Algorithm numbers is a list of the current algorithms assigned to each of the six effects blocks in the system. The algorithm numbers appear in the following order: Index 0 1 2 3 4 5 Effect Pitch Chorus EQ Modulator Reverb Delay Range 0-10 0-11 0-18 0-8 0-5 0-8 Parameter Type 0x014D 0x014E 0x014F 0x0150 0x0151 0x0152 A zero (0) in all cases represents "no effect" algorithm assigned. The "no effect" algorithm actually contains a "Mix" and "Level" parameter though they are ignored by the system. When changing the algorithm number of an effect, remember that the parameter values for the old algorithm may not be compatible with the new algorithm. [. . . ] For value of 16, display "Off" For value of 17, display "Omni" Midi Out Rate Disp Units Use the "midi_out_rate_strings" Meter Disp Units Use the "meter_strings" Sort Mode Disp Units Use the "sort_mode_strings" Bypass Mode Disp Units Use the "bypass_mode_strings" Mem Protect Disp Units Use the "mem_protect_mode_strings" Patch Update Mode Disp units Use the "patch_update_mode_strings" Sleep Mode Disp Units Use the "sleep_mode_strings" Mix Mode Disp Units Use the "mix_mode_strings" Program Load Disp Units Use the "program_load_strings" Clock Source Disp Units Use the "clock_source_strings" Audio Output Disp Units Use the "audio_output_mode_strings" Chan Stat Disp Units Use the "chan_stat_mode_strings" Alphanumeric Disp Units Display the data as an ASCII string Bpm Disp Units Display in decimal followed by BPM Tempo Source Disp Units Use the "tempo_source_strings" Cont Source Disp Units For values 0 and FFFF, display "None". For values 31-150, display "CC" followed by the value minus 31. For values >151, use "midi_control_strings" with value minus 151 for index. Min Off Cont Source Disp Units Same as previous except display "None" for the "min_value" Num Beats Disp Units Display in decimal followed by "Beats" Options No Disp Units Display in decimal using option data Ab Mode Disp Units Use the "ab_mode_strings" Global Patch Dest Disp Units Use the "global_patch_dest_strings" MIDI Dump Disp Units Use the "midi_dump_strings" Eq Mode Disp Units Use the "eq_mode_strings" Name Disp Units Display data as an ASCII string Wah Type Disp Units Use the "wah_type_strings" using the option data as an index Input Mode Disp Units Use the "input_mode_strings" Arp Mode Disp Units Use the "arpeggiator_mode_strings" Env Source Disp Units Use the "encelope_source_strings" Size Disp Units Divide the value by 2 and add 4. [. . . ]