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Revision 1065 - (hide annotations) (download)
Sun Mar 4 02:09:10 2007 UTC (12 years, 9 months ago) by schoenebeck
File size: 11314 byte(s)
- only the API relevant header (and source) files will be exported to
  the Doxygen API documentation (explicitly listed in Doxyfile.in)

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

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