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Revision 1149 - (hide annotations) (download)
Sat Apr 7 22:32:47 2007 UTC (16 years, 11 months ago) by schoenebeck
File size: 11600 byte(s)
* minor fix of EGDecay
* fixed compilation errors regarding OSX
(patch by Toshi Nagata)

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

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