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Revision 1161 - (show annotations) (download)
Mon Apr 16 15:51:18 2007 UTC (16 years, 11 months ago) by iliev
File size: 11639 byte(s)
* Implemented instruments database

1 Version CVS HEAD (?)
2
3 * 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 * general changes:
8 - replaced the old, confusing MIDI program change mechanism by a
9 flexible MIDI instrument mapper which allows to map arbitrary
10 (MIDI bank, MIDI program) pairs with arbitrary
11 (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 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 - new notification events for tracking changes to audio/MIDI devices,
25 MIDI instrument maps, MIDI instruments, FX sends, global volume.
26 - 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 - 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 - global (sampler wide) volume can now be controlled at runtime
34 - Implemented new, improved notification system
35 - fixed compilation errors regarding OSX
36 (patch by Toshi Nagata)
37 - implemented instruments database
38
39 * MIDI driver:
40 - dispatch bank select (MSB and LSB) messages
41
42 * 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 * 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 - 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 - EG fix: a release value of zero could cause noises or crash
56 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
57 - 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 - more EG fixes: the level could sometimes go below zero and cause
61 noises or crashes
62 - minor fix of EGDecay (patch by Toshi Nagata)
63
64 * Bug fixes:
65 - fixed crash occurring on certain LSCP scripts (Bug 39)
66 - another thread safety fix for lscp "load engine" and "set
67 channel audio output device"
68
69 Version 0.4.0 (24 November 2006)
70
71 * packaging changes:
72 - 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 - 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 - 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 - do not automatically pick optimized gcc flags if the user already
85 provided some on his own (as CXXFLAGS)
86 - added compile time option to disable processing of All-Notes-Off MIDI
87 messages
88 - added compile time options to allow disabling the various audio and
89 MIDI drivers
90 - fixed automatic GCC CPU switch detection on PPC
91 (patch by Ebrahim Mayat)
92
93 * Gigasampler format engine:
94 - 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 constant pitch and filter coefficients. The volume coefficient is
99 linearly interpolated inside a subfragment, unless
100 --disable-interpolate-volume is set.)
101 - fine tuning of the EG modulation parameters
102 - 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 curve and Velocity range. The keyboard tracking now scales
106 cutoff frequency instead of resonance.
107 - added support for gig parameter Resonance.
108 - fixed bug in sysex handling (patch by Juan Linietsky)
109 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
110 which can be overridden with --enable-global-attenuation
111 - EG fixes: made the length of "attack hold" stage more
112 accurate. Release stage can now start before attack stage
113 ends. Cancel release didn't work when sustain was zero. Attack
114 time now has a minimal value to prevent clicks.
115 - fixed pitch changes larger than one octave
116 - 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 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
122 parameter) and crossfade
123 - added support for the "attenuation controller threshold" gig
124 parameter
125 - added smoothing of volume changes caused by control change
126 messages
127 - 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 - 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 - 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 - LFO1 behaviour fixed (dampening from max volume instead of
139 amplifying from 0)
140
141 * LSCP server:
142 - fixed application exit on broken pipe error (fixes bug #20)
143 - fixed the notification messages delay due to lack of
144 network activity (fixes bug #26)
145 - 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
148 * audio driver:
149 - added aRts audio output driver (by no means RT safe)
150
151 * MIDI driver:
152 - fixed legacy sysex code which caused dispatching of MIDI SysEx
153 messages several times instead of once
154 - API extension for MIDI drivers which already supply exact time stamps
155 for events (i.e. for offline rendering based MIDI drivers)
156 - added checks for bad MIDI data
157
158 * linuxsampler application:
159 - show available sampler engine types on startup
160
161 * 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 (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 - support for sostenuto pedal
170 - support for monitoring the total number of active voices
171 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
172 SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
173 - fixed some memory management errors
174 - fixed some concurrency problems that could lead to crashes when
175 LSCP commands were executed
176 - fixed crash when instrument loading failed previously on the same
177 sampler channel (fixes bug #36)
178
179 Version 0.3.3 (15 July 2005)
180
181 * packaging changes:
182 - fixed compilation with gcc 4.0
183
184 * Gigasampler format engine:
185 - LFO preprocessing was performed even though the respective LFO was
186 disabled by the instrument patch (minor efficiency fix)
187 - 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
193 Version 0.3.2 (24 June 2005)
194
195 * packaging changes:
196 - updated autotools build files to compile on OS X
197 (conditional compilation of CoreMIDI and MidiShare drivers)
198 - hand-crafted assembly optimization code can be disabled with
199 './configure --disable-asm' (definitely not recommended)
200 - 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
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 - revised voice stealing
211 (fixes crash and endless loop caused by voice stealing)
212 - don't reset scale tuning on instrument or audio output device change
213 - 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 - 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 - don't reset volume, pan, pitch and MIDI controller values on
221 instrument or audio output device change
222
223 * LSCP server:
224 - fixed some crashes (patch by Grigor Iliev, fixes #19)
225 - fixed LSCP event "CHANNEL_INFO" notification
226 (e.g. did not notify on volume changes or MIDI program change events)
227
228 * 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 Version 0.3.1 (24 May 2005)
233
234 * initial release

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