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Contents of /linuxsampler/trunk/ChangeLog

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Revision 1175 - (show annotations) (download)
Sun May 6 16:38:35 2007 UTC (12 years, 7 months ago) by schoenebeck
File size: 11900 byte(s)
* added completely new XCode project files for Mac OSX which is now
  capable to execute our autoconf environment, thus no need anymore
  to maintain the compile time configuration file (osx/version.h) for
  OSX manually (patch by Toshi Nagata)

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 - added completely new XCode project files for Mac OSX which is now
7 capable to execute our autoconf environment, thus no need anymore
8 to maintain the compile time configuration file (osx/version.h) for
9 OSX manually (patch by Toshi Nagata)
10
11 * general changes:
12 - replaced the old, confusing MIDI program change mechanism by a
13 flexible MIDI instrument mapper which allows to map arbitrary
14 (MIDI bank, MIDI program) pairs with arbitrary
15 (engine type, instrument file, file index) triplets which will be
16 loaded on the respective channel when such MIDI program change
17 messages arrive, beside that, each entry allows to define a life-time
18 strategy for the instrument, so the user can define whether the
19 instrument should i.e. be permanently loaded (to be able to switch
20 quickly among sounds) or i.e. loaded just on demand when the
21 respective program change arrives (to safe RAM space), as well as a
22 global volume factor for each entry, so the user can adjust the volume
23 dynamic of his mapped instrument collection without having to modify
24 the instrument files, also one can manage arbitrary amount of such
25 MIDI instrument maps and assign each sampler channel individually
26 a certain map, so that i.e. separation of normal instruments and
27 drumkits is possible
28 - new notification events for tracking changes to audio/MIDI devices,
29 MIDI instrument maps, MIDI instruments, FX sends, global volume.
30 - sampler was limited to load max. 200 instruments in the background
31 due to a constant size RingBuffer FIFO which is now replaced by a
32 dynamic (unlimited) size std::list FIFO
33 - added FX sends, these allow to route audio signals to arbitrary audio
34 output channels for being processed by external effect processors
35 (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
36 controllers
37 - global (sampler wide) volume can now be controlled at runtime
38 - Implemented new, improved notification system
39 - fixed compilation errors regarding OSX
40 (patch by Toshi Nagata)
41 - implemented instruments database
42
43 * MIDI driver:
44 - dispatch bank select (MSB and LSB) messages
45
46 * audio driver:
47 - the ALSA audio output driver parameters now reflect the correct
48 parameter value ranges for the respective selected sound card
49 (patch by Till Wimmer, a bit fixed and extended)
50
51 * Gigasampler format engine:
52 - if a filter is used and EG2 finishes before EG1, let the voice
53 die when EG2 has finished (this fixes a problem with clicks and
54 voice starvation for some gigs)
55 - playback is no longer disabled during instrument loading
56 - all notes playing on a channel that changes its instrument keep
57 playing with the old instrument until they get a note off
58 command
59 - EG fix: a release value of zero could cause noises or crash
60 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
61 - EG fine tuning: when attack is zero the EG starts at a level
62 above max sustain level, which means that there is a decay phase
63 even if sustain is 100%
64 - more EG fixes: the level could sometimes go below zero and cause
65 noises or crashes
66 - minor fix of EGDecay (patch by Toshi Nagata)
67
68 * Bug fixes:
69 - fixed crash occurring on certain LSCP scripts (Bug 39)
70 - another thread safety fix for lscp "load engine" and "set
71 channel audio output device"
72
73 Version 0.4.0 (24 November 2006)
74
75 * packaging changes:
76 - changed deprecated copyright attribute to license; added ldconfig
77 to post-(un)install steps; added devel package for liblinuxsampler;
78 to linuxsampler.spec (RPM)
79 - install necessary development header files for allowing 3rd party
80 applications to link against liblinuxsampler
81 - liblinuxsampler's API documentation can be generated with 'make docs'
82 (Doxygen required)
83 - added benchmark to automatically detect the best triangle LFO
84 implementation (currently either an integer math solution or a
85 di-harmonic approximation), automatic detection can be overriden
86 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
87 configure script argument though (mandatory for cross-compilation)
88 - do not automatically pick optimized gcc flags if the user already
89 provided some on his own (as CXXFLAGS)
90 - added compile time option to disable processing of All-Notes-Off MIDI
91 messages
92 - added compile time options to allow disabling the various audio and
93 MIDI drivers
94 - fixed automatic GCC CPU switch detection on PPC
95 (patch by Ebrahim Mayat)
96
97 * Gigasampler format engine:
98 - extensive synthesis optimization
99 (reimplementation of EGs and LFO(s), removed synthesis parameter
100 prerendering and the synthesis parameter matrix in general, splitting
101 each audio fragment into subfragments now where each subfragment uses
102 constant pitch and filter coefficients. The volume coefficient is
103 linearly interpolated inside a subfragment, unless
104 --disable-interpolate-volume is set.)
105 - fine tuning of the EG modulation parameters
106 - improved filter cutoff calculation by adding support for the
107 following gig parameters: Cutoff freq (used when no cutoff
108 controller is defined), Control invert, Minimum cutoff, Velocity
109 curve and Velocity range. The keyboard tracking now scales
110 cutoff frequency instead of resonance.
111 - added support for gig parameter Resonance.
112 - fixed bug in sysex handling (patch by Juan Linietsky)
113 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
114 which can be overridden with --enable-global-attenuation
115 - EG fixes: made the length of "attack hold" stage more
116 accurate. Release stage can now start before attack stage
117 ends. Cancel release didn't work when sustain was zero. Attack
118 time now has a minimal value to prevent clicks.
119 - fixed pitch changes larger than one octave
120 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
121 - implemented portamento mode and solo mode (a.k.a 'mono mode'):
122 all modes can be altered via standard GM messages, that is CC5 for
123 altering portamento time, CC65 for enabling / disabling portamento
124 mode, CC126 for enabling solo mode and CC127 for disabling solo mode
125 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
126 parameter) and crossfade
127 - added support for the "attenuation controller threshold" gig
128 parameter
129 - added smoothing of volume changes caused by control change
130 messages
131 - sample loop parameters are now taken from the DimensionRegion
132 instead of the wave chunk
133 - fixed keyswitching for v3 gigs with a number of keyswitch splits
134 not equal to a power of two
135 - reimplementation of the filter algorithm. The new filter is more
136 accurate and supports all gig filter types, including bandreject
137 and lowpass turbo.
138 - real support for 24 bit samples - samples are not truncated to
139 16 bits anymore
140 - support for aftertouch (channel pressure, not polyphonic
141 aftertouch)
142 - LFO1 behaviour fixed (dampening from max volume instead of
143 amplifying from 0)
144
145 * LSCP server:
146 - fixed application exit on broken pipe error (fixes bug #20)
147 - fixed the notification messages delay due to lack of
148 network activity (fixes bug #26)
149 - fixed parser bug which occured on space(s) within device parameters
150 (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
151
152 * audio driver:
153 - added aRts audio output driver (by no means RT safe)
154
155 * MIDI driver:
156 - fixed legacy sysex code which caused dispatching of MIDI SysEx
157 messages several times instead of once
158 - API extension for MIDI drivers which already supply exact time stamps
159 for events (i.e. for offline rendering based MIDI drivers)
160 - added checks for bad MIDI data
161
162 * linuxsampler application:
163 - show available sampler engine types on startup
164
165 * general changes:
166 - support for muting sampler channels and solo mode of the same, two new
167 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
168 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
169 introduced for this, the behavior is the same like on a mixer console
170 (patch by Grigor Iliev, a bit adjusted). Also added configure option
171 --enable-process-muted-channels which can be used to enable the
172 processing of muted channels.
173 - support for sostenuto pedal
174 - support for monitoring the total number of active voices
175 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
176 SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
177 - fixed some memory management errors
178 - fixed some concurrency problems that could lead to crashes when
179 LSCP commands were executed
180 - fixed crash when instrument loading failed previously on the same
181 sampler channel (fixes bug #36)
182
183 Version 0.3.3 (15 July 2005)
184
185 * packaging changes:
186 - fixed compilation with gcc 4.0
187
188 * Gigasampler format engine:
189 - LFO preprocessing was performed even though the respective LFO was
190 disabled by the instrument patch (minor efficiency fix)
191 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
192 for volume ramp downs in the same fragment (needed for current voice
193 stealing implementation) then simply inform the user with a warning
194 about possible click sounds and reduce the volume ramp down
195 appropriately instead of cancelling the audio device connection
196
197 Version 0.3.2 (24 June 2005)
198
199 * packaging changes:
200 - updated autotools build files to compile on OS X
201 (conditional compilation of CoreMIDI and MidiShare drivers)
202 - hand-crafted assembly optimization code can be disabled with
203 './configure --disable-asm' (definitely not recommended)
204 - fixed 'make dist' rule to include all necessary files
205 - require automake (>= 1.5) for 'make -f Makefile.cvs'
206 (due to 'dist-bzip2' automake option)
207
208 * Gigasampler format engine:
209 - support for the gig parameters for "release velocity response" curves
210 - fine tuning of the EGADSR envelope
211 - volume of release triggered samples now depends on note-on velocity,
212 note length and gig parameter "release trigger decay" instead of
213 note-off velocity.
214 - revised voice stealing
215 (fixes crash and endless loop caused by voice stealing)
216 - don't reset scale tuning on instrument or audio output device change
217 - handle key group conflicts right at the beginning of each fragment
218 instead of when the respective voice is actually launched
219 (fixes undefined behavior if stolen voices belonged to a key group -
220 this case was followed by a "killed voice survived" error message)
221 - fixed minor issue with null/silence samples
222 (those stole voices even though they don't need a voice at all which
223 resulted in "voice stealing didn't work out" messages)
224 - don't reset volume, pan, pitch and MIDI controller values on
225 instrument or audio output device change
226
227 * LSCP server:
228 - fixed some crashes (patch by Grigor Iliev, fixes #19)
229 - fixed LSCP event "CHANNEL_INFO" notification
230 (e.g. did not notify on volume changes or MIDI program change events)
231
232 * linuxsampler application:
233 - added command line parameters --lscp-addr and --lscp-port to override
234 default IP address and port of LSCP server
235
236 Version 0.3.1 (24 May 2005)
237
238 * initial release

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