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Revision 1161 - (hide annotations) (download)
Mon Apr 16 15:51:18 2007 UTC (12 years, 7 months ago) by iliev
File size: 11639 byte(s)
* Implemented instruments database

1 schoenebeck 947 Version CVS HEAD (?)
2    
3 schoenebeck 1065 * packaging changes:
4     - only the API relevant header (and source) files will be exported to
5     the Doxygen API documentation (explicitly listed in Doxyfile.in)
6    
7 schoenebeck 947 * general changes:
8     - replaced the old, confusing MIDI program change mechanism by a
9     flexible MIDI instrument mapper which allows to map arbitrary
10 schoenebeck 973 (MIDI bank, MIDI program) pairs with arbitrary
11 schoenebeck 947 (engine type, instrument file, file index) triplets which will be
12     loaded on the respective channel when such MIDI program change
13     messages arrive, beside that, each entry allows to define a life-time
14     strategy for the instrument, so the user can define whether the
15     instrument should i.e. be permanently loaded (to be able to switch
16     quickly among sounds) or i.e. loaded just on demand when the
17     respective program change arrives (to safe RAM space), as well as a
18     global volume factor for each entry, so the user can adjust the volume
19     dynamic of his mapped instrument collection without having to modify
20 schoenebeck 973 the instrument files, also one can manage arbitrary amount of such
21     MIDI instrument maps and assign each sampler channel individually
22     a certain map, so that i.e. separation of normal instruments and
23     drumkits is possible
24 iliev 1108 - new notification events for tracking changes to audio/MIDI devices,
25     MIDI instrument maps, MIDI instruments, FX sends, global volume.
26 schoenebeck 990 - sampler was limited to load max. 200 instruments in the background
27     due to a constant size RingBuffer FIFO which is now replaced by a
28     dynamic (unlimited) size std::list FIFO
29 schoenebeck 1001 - added FX sends, these allow to route audio signals to arbitrary audio
30     output channels for being processed by external effect processors
31     (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
32     controllers
33 schoenebeck 1005 - global (sampler wide) volume can now be controlled at runtime
34 iliev 1130 - Implemented new, improved notification system
35 schoenebeck 1149 - fixed compilation errors regarding OSX
36     (patch by Toshi Nagata)
37 iliev 1161 - implemented instruments database
38 schoenebeck 947
39     * MIDI driver:
40     - dispatch bank select (MSB and LSB) messages
41    
42 schoenebeck 1049 * audio driver:
43     - the ALSA audio output driver parameters now reflect the correct
44     parameter value ranges for the respective selected sound card
45     (patch by Till Wimmer, a bit fixed and extended)
46    
47 persson 951 * Gigasampler format engine:
48     - if a filter is used and EG2 finishes before EG1, let the voice
49     die when EG2 has finished (this fixes a problem with clicks and
50     voice starvation for some gigs)
51 persson 1038 - playback is no longer disabled during instrument loading
52     - all notes playing on a channel that changes its instrument keep
53     playing with the old instrument until they get a note off
54     command
55 persson 1039 - EG fix: a release value of zero could cause noises or crash
56 schoenebeck 1041 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
57 persson 1046 - EG fine tuning: when attack is zero the EG starts at a level
58     above max sustain level, which means that there is a decay phase
59     even if sustain is 100%
60 persson 1147 - more EG fixes: the level could sometimes go below zero and cause
61     noises or crashes
62 schoenebeck 1149 - minor fix of EGDecay (patch by Toshi Nagata)
63 persson 951
64 iliev 959 * Bug fixes:
65     - fixed crash occurring on certain LSCP scripts (Bug 39)
66 persson 1038 - another thread safety fix for lscp "load engine" and "set
67     channel audio output device"
68 iliev 959
69 schoenebeck 937 Version 0.4.0 (24 November 2006)
70 persson 696
71 schoenebeck 697 * packaging changes:
72 capela 868 - changed deprecated copyright attribute to license; added ldconfig
73     to post-(un)install steps; added devel package for liblinuxsampler;
74     to linuxsampler.spec (RPM)
75 schoenebeck 697 - install necessary development header files for allowing 3rd party
76     applications to link against liblinuxsampler
77     - liblinuxsampler's API documentation can be generated with 'make docs'
78     (Doxygen required)
79 schoenebeck 715 - added benchmark to automatically detect the best triangle LFO
80     implementation (currently either an integer math solution or a
81     di-harmonic approximation), automatic detection can be overriden
82     with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
83     configure script argument though (mandatory for cross-compilation)
84 schoenebeck 829 - do not automatically pick optimized gcc flags if the user already
85     provided some on his own (as CXXFLAGS)
86 schoenebeck 849 - added compile time option to disable processing of All-Notes-Off MIDI
87     messages
88 schoenebeck 852 - added compile time options to allow disabling the various audio and
89     MIDI drivers
90 schoenebeck 909 - fixed automatic GCC CPU switch detection on PPC
91     (patch by Ebrahim Mayat)
92 schoenebeck 697
93 persson 696 * Gigasampler format engine:
94 schoenebeck 738 - extensive synthesis optimization
95     (reimplementation of EGs and LFO(s), removed synthesis parameter
96     prerendering and the synthesis parameter matrix in general, splitting
97     each audio fragment into subfragments now where each subfragment uses
98 persson 830 constant pitch and filter coefficients. The volume coefficient is
99     linearly interpolated inside a subfragment, unless
100     --disable-interpolate-volume is set.)
101 persson 696 - fine tuning of the EG modulation parameters
102 persson 729 - improved filter cutoff calculation by adding support for the
103     following gig parameters: Cutoff freq (used when no cutoff
104     controller is defined), Control invert, Minimum cutoff, Velocity
105 persson 791 curve and Velocity range. The keyboard tracking now scales
106     cutoff frequency instead of resonance.
107 persson 877 - added support for gig parameter Resonance.
108 schoenebeck 775 - fixed bug in sysex handling (patch by Juan Linietsky)
109 schoenebeck 781 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
110     which can be overridden with --enable-global-attenuation
111 persson 783 - EG fixes: made the length of "attack hold" stage more
112     accurate. Release stage can now start before attack stage
113 persson 797 ends. Cancel release didn't work when sustain was zero. Attack
114     time now has a minimal value to prevent clicks.
115 persson 799 - fixed pitch changes larger than one octave
116 schoenebeck 829 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
117     - implemented portamento mode and solo mode (a.k.a 'mono mode'):
118     all modes can be altered via standard GM messages, that is CC5 for
119     altering portamento time, CC65 for enabling / disabling portamento
120     mode, CC126 for enabling solo mode and CC127 for disabling solo mode
121 persson 832 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
122     parameter) and crossfade
123 persson 831 - added support for the "attenuation controller threshold" gig
124     parameter
125 persson 832 - added smoothing of volume changes caused by control change
126     messages
127 persson 865 - sample loop parameters are now taken from the DimensionRegion
128     instead of the wave chunk
129     - fixed keyswitching for v3 gigs with a number of keyswitch splits
130     not equal to a power of two
131 persson 877 - reimplementation of the filter algorithm. The new filter is more
132     accurate and supports all gig filter types, including bandreject
133     and lowpass turbo.
134 persson 903 - real support for 24 bit samples - samples are not truncated to
135     16 bits anymore
136     - support for aftertouch (channel pressure, not polyphonic
137     aftertouch)
138 persson 922 - LFO1 behaviour fixed (dampening from max volume instead of
139     amplifying from 0)
140 persson 696
141 schoenebeck 711 * LSCP server:
142     - fixed application exit on broken pipe error (fixes bug #20)
143 iliev 793 - fixed the notification messages delay due to lack of
144     network activity (fixes bug #26)
145 schoenebeck 826 - fixed parser bug which occured on space(s) within device parameters
146     (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
147 schoenebeck 711
148 schoenebeck 838 * audio driver:
149     - added aRts audio output driver (by no means RT safe)
150    
151 schoenebeck 775 * MIDI driver:
152     - fixed legacy sysex code which caused dispatching of MIDI SysEx
153     messages several times instead of once
154 schoenebeck 906 - API extension for MIDI drivers which already supply exact time stamps
155     for events (i.e. for offline rendering based MIDI drivers)
156 persson 922 - added checks for bad MIDI data
157 schoenebeck 775
158 schoenebeck 900 * linuxsampler application:
159     - show available sampler engine types on startup
160    
161 schoenebeck 705 * general changes:
162     - support for muting sampler channels and solo mode of the same, two new
163     LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
164     fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
165     introduced for this, the behavior is the same like on a mixer console
166 iliev 716 (patch by Grigor Iliev, a bit adjusted). Also added configure option
167     --enable-process-muted-channels which can be used to enable the
168     processing of muted channels.
169 iliev 777 - support for sostenuto pedal
170 iliev 779 - support for monitoring the total number of active voices
171 iliev 778 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
172     SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
173 persson 835 - fixed some memory management errors
174 persson 841 - fixed some concurrency problems that could lead to crashes when
175     LSCP commands were executed
176 schoenebeck 925 - fixed crash when instrument loading failed previously on the same
177     sampler channel (fixes bug #36)
178 schoenebeck 705
179 schoenebeck 692 Version 0.3.3 (15 July 2005)
180 schoenebeck 686
181     * packaging changes:
182     - fixed compilation with gcc 4.0
183    
184 schoenebeck 687 * Gigasampler format engine:
185     - LFO preprocessing was performed even though the respective LFO was
186     disabled by the instrument patch (minor efficiency fix)
187 schoenebeck 688 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
188     for volume ramp downs in the same fragment (needed for current voice
189     stealing implementation) then simply inform the user with a warning
190     about possible click sounds and reduce the volume ramp down
191     appropriately instead of cancelling the audio device connection
192 schoenebeck 687
193 schoenebeck 677 Version 0.3.2 (24 June 2005)
194 schoenebeck 609
195     * packaging changes:
196     - updated autotools build files to compile on OS X
197     (conditional compilation of CoreMIDI and MidiShare drivers)
198 schoenebeck 617 - hand-crafted assembly optimization code can be disabled with
199     './configure --disable-asm' (definitely not recommended)
200 schoenebeck 654 - fixed 'make dist' rule to include all necessary files
201     - require automake (>= 1.5) for 'make -f Makefile.cvs'
202     (due to 'dist-bzip2' automake option)
203 schoenebeck 649
204     * Gigasampler format engine:
205     - support for the gig parameters for "release velocity response" curves
206     - fine tuning of the EGADSR envelope
207     - volume of release triggered samples now depends on note-on velocity,
208     note length and gig parameter "release trigger decay" instead of
209     note-off velocity.
210 schoenebeck 663 - revised voice stealing
211     (fixes crash and endless loop caused by voice stealing)
212 schoenebeck 659 - don't reset scale tuning on instrument or audio output device change
213 schoenebeck 668 - handle key group conflicts right at the beginning of each fragment
214     instead of when the respective voice is actually launched
215     (fixes undefined behavior if stolen voices belonged to a key group -
216     this case was followed by a "killed voice survived" error message)
217 schoenebeck 669 - fixed minor issue with null/silence samples
218     (those stole voices even though they don't need a voice at all which
219     resulted in "voice stealing didn't work out" messages)
220 schoenebeck 670 - don't reset volume, pan, pitch and MIDI controller values on
221     instrument or audio output device change
222 schoenebeck 654
223 schoenebeck 620 * LSCP server:
224 schoenebeck 654 - fixed some crashes (patch by Grigor Iliev, fixes #19)
225 schoenebeck 660 - fixed LSCP event "CHANNEL_INFO" notification
226 schoenebeck 670 (e.g. did not notify on volume changes or MIDI program change events)
227 schoenebeck 609
228 schoenebeck 668 * linuxsampler application:
229     - added command line parameters --lscp-addr and --lscp-port to override
230     default IP address and port of LSCP server
231    
232 schoenebeck 579 Version 0.3.1 (24 May 2005)
233    
234     * initial release

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