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Revision 1130 - (hide annotations) (download)
Sun Mar 25 18:59:14 2007 UTC (12 years, 8 months ago) by iliev
File size: 11379 byte(s)
* Implemented new, improved notification system

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

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