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Revision 973 - (hide annotations) (download)
Fri Dec 15 21:40:27 2006 UTC (12 years, 10 months ago) by schoenebeck
File size: 9690 byte(s)
* revised and extended MIDI instrument mapping feature to allow managing
  arbitrary amount of maps and assigning each sampler channel individually
  to one map (this commit batch includes LSCP spec document update and
  respective implementation on LS side)

1 schoenebeck 947 Version CVS HEAD (?)
2    
3     * general changes:
4     - replaced the old, confusing MIDI program change mechanism by a
5     flexible MIDI instrument mapper which allows to map arbitrary
6 schoenebeck 973 (MIDI bank, MIDI program) pairs with arbitrary
7 schoenebeck 947 (engine type, instrument file, file index) triplets which will be
8     loaded on the respective channel when such MIDI program change
9     messages arrive, beside that, each entry allows to define a life-time
10     strategy for the instrument, so the user can define whether the
11     instrument should i.e. be permanently loaded (to be able to switch
12     quickly among sounds) or i.e. loaded just on demand when the
13     respective program change arrives (to safe RAM space), as well as a
14     global volume factor for each entry, so the user can adjust the volume
15     dynamic of his mapped instrument collection without having to modify
16 schoenebeck 973 the instrument files, also one can manage arbitrary amount of such
17     MIDI instrument maps and assign each sampler channel individually
18     a certain map, so that i.e. separation of normal instruments and
19     drumkits is possible
20 schoenebeck 947
21     * MIDI driver:
22     - dispatch bank select (MSB and LSB) messages
23    
24 persson 951 * Gigasampler format engine:
25     - if a filter is used and EG2 finishes before EG1, let the voice
26     die when EG2 has finished (this fixes a problem with clicks and
27     voice starvation for some gigs)
28    
29 iliev 959 * Bug fixes:
30     - fixed crash occurring on certain LSCP scripts (Bug 39)
31    
32 schoenebeck 937 Version 0.4.0 (24 November 2006)
33 persson 696
34 schoenebeck 697 * packaging changes:
35 capela 868 - changed deprecated copyright attribute to license; added ldconfig
36     to post-(un)install steps; added devel package for liblinuxsampler;
37     to linuxsampler.spec (RPM)
38 schoenebeck 697 - install necessary development header files for allowing 3rd party
39     applications to link against liblinuxsampler
40     - liblinuxsampler's API documentation can be generated with 'make docs'
41     (Doxygen required)
42 schoenebeck 715 - added benchmark to automatically detect the best triangle LFO
43     implementation (currently either an integer math solution or a
44     di-harmonic approximation), automatic detection can be overriden
45     with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
46     configure script argument though (mandatory for cross-compilation)
47 schoenebeck 829 - do not automatically pick optimized gcc flags if the user already
48     provided some on his own (as CXXFLAGS)
49 schoenebeck 849 - added compile time option to disable processing of All-Notes-Off MIDI
50     messages
51 schoenebeck 852 - added compile time options to allow disabling the various audio and
52     MIDI drivers
53 schoenebeck 909 - fixed automatic GCC CPU switch detection on PPC
54     (patch by Ebrahim Mayat)
55 schoenebeck 697
56 persson 696 * Gigasampler format engine:
57 schoenebeck 738 - extensive synthesis optimization
58     (reimplementation of EGs and LFO(s), removed synthesis parameter
59     prerendering and the synthesis parameter matrix in general, splitting
60     each audio fragment into subfragments now where each subfragment uses
61 persson 830 constant pitch and filter coefficients. The volume coefficient is
62     linearly interpolated inside a subfragment, unless
63     --disable-interpolate-volume is set.)
64 persson 696 - fine tuning of the EG modulation parameters
65 persson 729 - improved filter cutoff calculation by adding support for the
66     following gig parameters: Cutoff freq (used when no cutoff
67     controller is defined), Control invert, Minimum cutoff, Velocity
68 persson 791 curve and Velocity range. The keyboard tracking now scales
69     cutoff frequency instead of resonance.
70 persson 877 - added support for gig parameter Resonance.
71 schoenebeck 775 - fixed bug in sysex handling (patch by Juan Linietsky)
72 schoenebeck 781 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
73     which can be overridden with --enable-global-attenuation
74 persson 783 - EG fixes: made the length of "attack hold" stage more
75     accurate. Release stage can now start before attack stage
76 persson 797 ends. Cancel release didn't work when sustain was zero. Attack
77     time now has a minimal value to prevent clicks.
78 persson 799 - fixed pitch changes larger than one octave
79 schoenebeck 829 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
80     - implemented portamento mode and solo mode (a.k.a 'mono mode'):
81     all modes can be altered via standard GM messages, that is CC5 for
82     altering portamento time, CC65 for enabling / disabling portamento
83     mode, CC126 for enabling solo mode and CC127 for disabling solo mode
84 persson 832 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
85     parameter) and crossfade
86 persson 831 - added support for the "attenuation controller threshold" gig
87     parameter
88 persson 832 - added smoothing of volume changes caused by control change
89     messages
90 persson 865 - sample loop parameters are now taken from the DimensionRegion
91     instead of the wave chunk
92     - fixed keyswitching for v3 gigs with a number of keyswitch splits
93     not equal to a power of two
94 persson 877 - reimplementation of the filter algorithm. The new filter is more
95     accurate and supports all gig filter types, including bandreject
96     and lowpass turbo.
97 persson 903 - real support for 24 bit samples - samples are not truncated to
98     16 bits anymore
99     - support for aftertouch (channel pressure, not polyphonic
100     aftertouch)
101 persson 922 - LFO1 behaviour fixed (dampening from max volume instead of
102     amplifying from 0)
103 persson 696
104 schoenebeck 711 * LSCP server:
105     - fixed application exit on broken pipe error (fixes bug #20)
106 iliev 793 - fixed the notification messages delay due to lack of
107     network activity (fixes bug #26)
108 schoenebeck 826 - fixed parser bug which occured on space(s) within device parameters
109     (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
110 schoenebeck 711
111 schoenebeck 838 * audio driver:
112     - added aRts audio output driver (by no means RT safe)
113    
114 schoenebeck 775 * MIDI driver:
115     - fixed legacy sysex code which caused dispatching of MIDI SysEx
116     messages several times instead of once
117 schoenebeck 906 - API extension for MIDI drivers which already supply exact time stamps
118     for events (i.e. for offline rendering based MIDI drivers)
119 persson 922 - added checks for bad MIDI data
120 schoenebeck 775
121 schoenebeck 900 * linuxsampler application:
122     - show available sampler engine types on startup
123    
124 schoenebeck 705 * general changes:
125     - support for muting sampler channels and solo mode of the same, two new
126     LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
127     fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
128     introduced for this, the behavior is the same like on a mixer console
129 iliev 716 (patch by Grigor Iliev, a bit adjusted). Also added configure option
130     --enable-process-muted-channels which can be used to enable the
131     processing of muted channels.
132 iliev 777 - support for sostenuto pedal
133 iliev 779 - support for monitoring the total number of active voices
134 iliev 778 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
135     SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
136 persson 835 - fixed some memory management errors
137 persson 841 - fixed some concurrency problems that could lead to crashes when
138     LSCP commands were executed
139 schoenebeck 925 - fixed crash when instrument loading failed previously on the same
140     sampler channel (fixes bug #36)
141 schoenebeck 705
142 schoenebeck 692 Version 0.3.3 (15 July 2005)
143 schoenebeck 686
144     * packaging changes:
145     - fixed compilation with gcc 4.0
146    
147 schoenebeck 687 * Gigasampler format engine:
148     - LFO preprocessing was performed even though the respective LFO was
149     disabled by the instrument patch (minor efficiency fix)
150 schoenebeck 688 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
151     for volume ramp downs in the same fragment (needed for current voice
152     stealing implementation) then simply inform the user with a warning
153     about possible click sounds and reduce the volume ramp down
154     appropriately instead of cancelling the audio device connection
155 schoenebeck 687
156 schoenebeck 677 Version 0.3.2 (24 June 2005)
157 schoenebeck 609
158     * packaging changes:
159     - updated autotools build files to compile on OS X
160     (conditional compilation of CoreMIDI and MidiShare drivers)
161 schoenebeck 617 - hand-crafted assembly optimization code can be disabled with
162     './configure --disable-asm' (definitely not recommended)
163 schoenebeck 654 - fixed 'make dist' rule to include all necessary files
164     - require automake (>= 1.5) for 'make -f Makefile.cvs'
165     (due to 'dist-bzip2' automake option)
166 schoenebeck 649
167     * Gigasampler format engine:
168     - support for the gig parameters for "release velocity response" curves
169     - fine tuning of the EGADSR envelope
170     - volume of release triggered samples now depends on note-on velocity,
171     note length and gig parameter "release trigger decay" instead of
172     note-off velocity.
173 schoenebeck 663 - revised voice stealing
174     (fixes crash and endless loop caused by voice stealing)
175 schoenebeck 659 - don't reset scale tuning on instrument or audio output device change
176 schoenebeck 668 - handle key group conflicts right at the beginning of each fragment
177     instead of when the respective voice is actually launched
178     (fixes undefined behavior if stolen voices belonged to a key group -
179     this case was followed by a "killed voice survived" error message)
180 schoenebeck 669 - fixed minor issue with null/silence samples
181     (those stole voices even though they don't need a voice at all which
182     resulted in "voice stealing didn't work out" messages)
183 schoenebeck 670 - don't reset volume, pan, pitch and MIDI controller values on
184     instrument or audio output device change
185 schoenebeck 654
186 schoenebeck 620 * LSCP server:
187 schoenebeck 654 - fixed some crashes (patch by Grigor Iliev, fixes #19)
188 schoenebeck 660 - fixed LSCP event "CHANNEL_INFO" notification
189 schoenebeck 670 (e.g. did not notify on volume changes or MIDI program change events)
190 schoenebeck 609
191 schoenebeck 668 * linuxsampler application:
192     - added command line parameters --lscp-addr and --lscp-port to override
193     default IP address and port of LSCP server
194    
195 schoenebeck 579 Version 0.3.1 (24 May 2005)
196    
197     * initial release

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