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Revision 1041 - (hide annotations) (download)
Wed Feb 7 17:45:19 2007 UTC (12 years, 10 months ago) by schoenebeck
File size: 10765 byte(s)
* handle MIDI coarse tuning messages (MIDI RPN #0 MSB, #2 LSB),
  currently lazy implementation, transpose value is simply added on the
  note on/off values instead only at the mandatory places, thus when
  altering transpose while playing, voices can unintendedly survive

1 schoenebeck 947 Version CVS HEAD (?)
2    
3     * general changes:
4     - replaced the old, confusing MIDI program change mechanism by a
5     flexible MIDI instrument mapper which allows to map arbitrary
6 schoenebeck 973 (MIDI bank, MIDI program) pairs with arbitrary
7 schoenebeck 947 (engine type, instrument file, file index) triplets which will be
8     loaded on the respective channel when such MIDI program change
9     messages arrive, beside that, each entry allows to define a life-time
10     strategy for the instrument, so the user can define whether the
11     instrument should i.e. be permanently loaded (to be able to switch
12     quickly among sounds) or i.e. loaded just on demand when the
13     respective program change arrives (to safe RAM space), as well as a
14     global volume factor for each entry, so the user can adjust the volume
15     dynamic of his mapped instrument collection without having to modify
16 schoenebeck 973 the instrument files, also one can manage arbitrary amount of such
17     MIDI instrument maps and assign each sampler channel individually
18     a certain map, so that i.e. separation of normal instruments and
19     drumkits is possible
20 iliev 981 - new notification events for tracking audio/MIDI device changes,
21     MIDI instrument map changes and MIDI instrument changes
22 schoenebeck 990 - sampler was limited to load max. 200 instruments in the background
23     due to a constant size RingBuffer FIFO which is now replaced by a
24     dynamic (unlimited) size std::list FIFO
25 schoenebeck 1001 - added FX sends, these allow to route audio signals to arbitrary audio
26     output channels for being processed by external effect processors
27     (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
28     controllers
29 schoenebeck 1005 - global (sampler wide) volume can now be controlled at runtime
30 schoenebeck 947
31     * MIDI driver:
32     - dispatch bank select (MSB and LSB) messages
33    
34 persson 951 * Gigasampler format engine:
35     - if a filter is used and EG2 finishes before EG1, let the voice
36     die when EG2 has finished (this fixes a problem with clicks and
37     voice starvation for some gigs)
38 persson 1038 - playback is no longer disabled during instrument loading
39     - all notes playing on a channel that changes its instrument keep
40     playing with the old instrument until they get a note off
41     command
42 persson 1039 - EG fix: a release value of zero could cause noises or crash
43 schoenebeck 1041 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
44 persson 951
45 iliev 959 * Bug fixes:
46     - fixed crash occurring on certain LSCP scripts (Bug 39)
47 persson 1038 - another thread safety fix for lscp "load engine" and "set
48     channel audio output device"
49 iliev 959
50 schoenebeck 937 Version 0.4.0 (24 November 2006)
51 persson 696
52 schoenebeck 697 * packaging changes:
53 capela 868 - changed deprecated copyright attribute to license; added ldconfig
54     to post-(un)install steps; added devel package for liblinuxsampler;
55     to linuxsampler.spec (RPM)
56 schoenebeck 697 - install necessary development header files for allowing 3rd party
57     applications to link against liblinuxsampler
58     - liblinuxsampler's API documentation can be generated with 'make docs'
59     (Doxygen required)
60 schoenebeck 715 - added benchmark to automatically detect the best triangle LFO
61     implementation (currently either an integer math solution or a
62     di-harmonic approximation), automatic detection can be overriden
63     with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
64     configure script argument though (mandatory for cross-compilation)
65 schoenebeck 829 - do not automatically pick optimized gcc flags if the user already
66     provided some on his own (as CXXFLAGS)
67 schoenebeck 849 - added compile time option to disable processing of All-Notes-Off MIDI
68     messages
69 schoenebeck 852 - added compile time options to allow disabling the various audio and
70     MIDI drivers
71 schoenebeck 909 - fixed automatic GCC CPU switch detection on PPC
72     (patch by Ebrahim Mayat)
73 schoenebeck 697
74 persson 696 * Gigasampler format engine:
75 schoenebeck 738 - extensive synthesis optimization
76     (reimplementation of EGs and LFO(s), removed synthesis parameter
77     prerendering and the synthesis parameter matrix in general, splitting
78     each audio fragment into subfragments now where each subfragment uses
79 persson 830 constant pitch and filter coefficients. The volume coefficient is
80     linearly interpolated inside a subfragment, unless
81     --disable-interpolate-volume is set.)
82 persson 696 - fine tuning of the EG modulation parameters
83 persson 729 - improved filter cutoff calculation by adding support for the
84     following gig parameters: Cutoff freq (used when no cutoff
85     controller is defined), Control invert, Minimum cutoff, Velocity
86 persson 791 curve and Velocity range. The keyboard tracking now scales
87     cutoff frequency instead of resonance.
88 persson 877 - added support for gig parameter Resonance.
89 schoenebeck 775 - fixed bug in sysex handling (patch by Juan Linietsky)
90 schoenebeck 781 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
91     which can be overridden with --enable-global-attenuation
92 persson 783 - EG fixes: made the length of "attack hold" stage more
93     accurate. Release stage can now start before attack stage
94 persson 797 ends. Cancel release didn't work when sustain was zero. Attack
95     time now has a minimal value to prevent clicks.
96 persson 799 - fixed pitch changes larger than one octave
97 schoenebeck 829 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
98     - implemented portamento mode and solo mode (a.k.a 'mono mode'):
99     all modes can be altered via standard GM messages, that is CC5 for
100     altering portamento time, CC65 for enabling / disabling portamento
101     mode, CC126 for enabling solo mode and CC127 for disabling solo mode
102 persson 832 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
103     parameter) and crossfade
104 persson 831 - added support for the "attenuation controller threshold" gig
105     parameter
106 persson 832 - added smoothing of volume changes caused by control change
107     messages
108 persson 865 - sample loop parameters are now taken from the DimensionRegion
109     instead of the wave chunk
110     - fixed keyswitching for v3 gigs with a number of keyswitch splits
111     not equal to a power of two
112 persson 877 - reimplementation of the filter algorithm. The new filter is more
113     accurate and supports all gig filter types, including bandreject
114     and lowpass turbo.
115 persson 903 - real support for 24 bit samples - samples are not truncated to
116     16 bits anymore
117     - support for aftertouch (channel pressure, not polyphonic
118     aftertouch)
119 persson 922 - LFO1 behaviour fixed (dampening from max volume instead of
120     amplifying from 0)
121 persson 696
122 schoenebeck 711 * LSCP server:
123     - fixed application exit on broken pipe error (fixes bug #20)
124 iliev 793 - fixed the notification messages delay due to lack of
125     network activity (fixes bug #26)
126 schoenebeck 826 - fixed parser bug which occured on space(s) within device parameters
127     (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
128 schoenebeck 711
129 schoenebeck 838 * audio driver:
130     - added aRts audio output driver (by no means RT safe)
131    
132 schoenebeck 775 * MIDI driver:
133     - fixed legacy sysex code which caused dispatching of MIDI SysEx
134     messages several times instead of once
135 schoenebeck 906 - API extension for MIDI drivers which already supply exact time stamps
136     for events (i.e. for offline rendering based MIDI drivers)
137 persson 922 - added checks for bad MIDI data
138 schoenebeck 775
139 schoenebeck 900 * linuxsampler application:
140     - show available sampler engine types on startup
141    
142 schoenebeck 705 * general changes:
143     - support for muting sampler channels and solo mode of the same, two new
144     LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
145     fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
146     introduced for this, the behavior is the same like on a mixer console
147 iliev 716 (patch by Grigor Iliev, a bit adjusted). Also added configure option
148     --enable-process-muted-channels which can be used to enable the
149     processing of muted channels.
150 iliev 777 - support for sostenuto pedal
151 iliev 779 - support for monitoring the total number of active voices
152 iliev 778 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
153     SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
154 persson 835 - fixed some memory management errors
155 persson 841 - fixed some concurrency problems that could lead to crashes when
156     LSCP commands were executed
157 schoenebeck 925 - fixed crash when instrument loading failed previously on the same
158     sampler channel (fixes bug #36)
159 schoenebeck 705
160 schoenebeck 692 Version 0.3.3 (15 July 2005)
161 schoenebeck 686
162     * packaging changes:
163     - fixed compilation with gcc 4.0
164    
165 schoenebeck 687 * Gigasampler format engine:
166     - LFO preprocessing was performed even though the respective LFO was
167     disabled by the instrument patch (minor efficiency fix)
168 schoenebeck 688 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
169     for volume ramp downs in the same fragment (needed for current voice
170     stealing implementation) then simply inform the user with a warning
171     about possible click sounds and reduce the volume ramp down
172     appropriately instead of cancelling the audio device connection
173 schoenebeck 687
174 schoenebeck 677 Version 0.3.2 (24 June 2005)
175 schoenebeck 609
176     * packaging changes:
177     - updated autotools build files to compile on OS X
178     (conditional compilation of CoreMIDI and MidiShare drivers)
179 schoenebeck 617 - hand-crafted assembly optimization code can be disabled with
180     './configure --disable-asm' (definitely not recommended)
181 schoenebeck 654 - fixed 'make dist' rule to include all necessary files
182     - require automake (>= 1.5) for 'make -f Makefile.cvs'
183     (due to 'dist-bzip2' automake option)
184 schoenebeck 649
185     * Gigasampler format engine:
186     - support for the gig parameters for "release velocity response" curves
187     - fine tuning of the EGADSR envelope
188     - volume of release triggered samples now depends on note-on velocity,
189     note length and gig parameter "release trigger decay" instead of
190     note-off velocity.
191 schoenebeck 663 - revised voice stealing
192     (fixes crash and endless loop caused by voice stealing)
193 schoenebeck 659 - don't reset scale tuning on instrument or audio output device change
194 schoenebeck 668 - handle key group conflicts right at the beginning of each fragment
195     instead of when the respective voice is actually launched
196     (fixes undefined behavior if stolen voices belonged to a key group -
197     this case was followed by a "killed voice survived" error message)
198 schoenebeck 669 - fixed minor issue with null/silence samples
199     (those stole voices even though they don't need a voice at all which
200     resulted in "voice stealing didn't work out" messages)
201 schoenebeck 670 - don't reset volume, pan, pitch and MIDI controller values on
202     instrument or audio output device change
203 schoenebeck 654
204 schoenebeck 620 * LSCP server:
205 schoenebeck 654 - fixed some crashes (patch by Grigor Iliev, fixes #19)
206 schoenebeck 660 - fixed LSCP event "CHANNEL_INFO" notification
207 schoenebeck 670 (e.g. did not notify on volume changes or MIDI program change events)
208 schoenebeck 609
209 schoenebeck 668 * linuxsampler application:
210     - added command line parameters --lscp-addr and --lscp-port to override
211     default IP address and port of LSCP server
212    
213 schoenebeck 579 Version 0.3.1 (24 May 2005)
214    
215     * initial release

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