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Revision 1001 - (hide annotations) (download)
Wed Dec 27 16:17:08 2006 UTC (13 years, 9 months ago) by schoenebeck
File size: 10255 byte(s)
* implemented effect sends (also added new LSCP commands for this feature,
  updated LSCP spec document along with this commit batch as well)

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 947
30     * MIDI driver:
31     - dispatch bank select (MSB and LSB) messages
32    
33 persson 951 * Gigasampler format engine:
34     - if a filter is used and EG2 finishes before EG1, let the voice
35     die when EG2 has finished (this fixes a problem with clicks and
36     voice starvation for some gigs)
37    
38 iliev 959 * Bug fixes:
39     - fixed crash occurring on certain LSCP scripts (Bug 39)
40    
41 schoenebeck 937 Version 0.4.0 (24 November 2006)
42 persson 696
43 schoenebeck 697 * packaging changes:
44 capela 868 - changed deprecated copyright attribute to license; added ldconfig
45     to post-(un)install steps; added devel package for liblinuxsampler;
46     to linuxsampler.spec (RPM)
47 schoenebeck 697 - install necessary development header files for allowing 3rd party
48     applications to link against liblinuxsampler
49     - liblinuxsampler's API documentation can be generated with 'make docs'
50     (Doxygen required)
51 schoenebeck 715 - added benchmark to automatically detect the best triangle LFO
52     implementation (currently either an integer math solution or a
53     di-harmonic approximation), automatic detection can be overriden
54     with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
55     configure script argument though (mandatory for cross-compilation)
56 schoenebeck 829 - do not automatically pick optimized gcc flags if the user already
57     provided some on his own (as CXXFLAGS)
58 schoenebeck 849 - added compile time option to disable processing of All-Notes-Off MIDI
59     messages
60 schoenebeck 852 - added compile time options to allow disabling the various audio and
61     MIDI drivers
62 schoenebeck 909 - fixed automatic GCC CPU switch detection on PPC
63     (patch by Ebrahim Mayat)
64 schoenebeck 697
65 persson 696 * Gigasampler format engine:
66 schoenebeck 738 - extensive synthesis optimization
67     (reimplementation of EGs and LFO(s), removed synthesis parameter
68     prerendering and the synthesis parameter matrix in general, splitting
69     each audio fragment into subfragments now where each subfragment uses
70 persson 830 constant pitch and filter coefficients. The volume coefficient is
71     linearly interpolated inside a subfragment, unless
72     --disable-interpolate-volume is set.)
73 persson 696 - fine tuning of the EG modulation parameters
74 persson 729 - improved filter cutoff calculation by adding support for the
75     following gig parameters: Cutoff freq (used when no cutoff
76     controller is defined), Control invert, Minimum cutoff, Velocity
77 persson 791 curve and Velocity range. The keyboard tracking now scales
78     cutoff frequency instead of resonance.
79 persson 877 - added support for gig parameter Resonance.
80 schoenebeck 775 - fixed bug in sysex handling (patch by Juan Linietsky)
81 schoenebeck 781 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
82     which can be overridden with --enable-global-attenuation
83 persson 783 - EG fixes: made the length of "attack hold" stage more
84     accurate. Release stage can now start before attack stage
85 persson 797 ends. Cancel release didn't work when sustain was zero. Attack
86     time now has a minimal value to prevent clicks.
87 persson 799 - fixed pitch changes larger than one octave
88 schoenebeck 829 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
89     - implemented portamento mode and solo mode (a.k.a 'mono mode'):
90     all modes can be altered via standard GM messages, that is CC5 for
91     altering portamento time, CC65 for enabling / disabling portamento
92     mode, CC126 for enabling solo mode and CC127 for disabling solo mode
93 persson 832 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
94     parameter) and crossfade
95 persson 831 - added support for the "attenuation controller threshold" gig
96     parameter
97 persson 832 - added smoothing of volume changes caused by control change
98     messages
99 persson 865 - sample loop parameters are now taken from the DimensionRegion
100     instead of the wave chunk
101     - fixed keyswitching for v3 gigs with a number of keyswitch splits
102     not equal to a power of two
103 persson 877 - reimplementation of the filter algorithm. The new filter is more
104     accurate and supports all gig filter types, including bandreject
105     and lowpass turbo.
106 persson 903 - real support for 24 bit samples - samples are not truncated to
107     16 bits anymore
108     - support for aftertouch (channel pressure, not polyphonic
109     aftertouch)
110 persson 922 - LFO1 behaviour fixed (dampening from max volume instead of
111     amplifying from 0)
112 persson 696
113 schoenebeck 711 * LSCP server:
114     - fixed application exit on broken pipe error (fixes bug #20)
115 iliev 793 - fixed the notification messages delay due to lack of
116     network activity (fixes bug #26)
117 schoenebeck 826 - fixed parser bug which occured on space(s) within device parameters
118     (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
119 schoenebeck 711
120 schoenebeck 838 * audio driver:
121     - added aRts audio output driver (by no means RT safe)
122    
123 schoenebeck 775 * MIDI driver:
124     - fixed legacy sysex code which caused dispatching of MIDI SysEx
125     messages several times instead of once
126 schoenebeck 906 - API extension for MIDI drivers which already supply exact time stamps
127     for events (i.e. for offline rendering based MIDI drivers)
128 persson 922 - added checks for bad MIDI data
129 schoenebeck 775
130 schoenebeck 900 * linuxsampler application:
131     - show available sampler engine types on startup
132    
133 schoenebeck 705 * general changes:
134     - support for muting sampler channels and solo mode of the same, two new
135     LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
136     fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
137     introduced for this, the behavior is the same like on a mixer console
138 iliev 716 (patch by Grigor Iliev, a bit adjusted). Also added configure option
139     --enable-process-muted-channels which can be used to enable the
140     processing of muted channels.
141 iliev 777 - support for sostenuto pedal
142 iliev 779 - support for monitoring the total number of active voices
143 iliev 778 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
144     SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
145 persson 835 - fixed some memory management errors
146 persson 841 - fixed some concurrency problems that could lead to crashes when
147     LSCP commands were executed
148 schoenebeck 925 - fixed crash when instrument loading failed previously on the same
149     sampler channel (fixes bug #36)
150 schoenebeck 705
151 schoenebeck 692 Version 0.3.3 (15 July 2005)
152 schoenebeck 686
153     * packaging changes:
154     - fixed compilation with gcc 4.0
155    
156 schoenebeck 687 * Gigasampler format engine:
157     - LFO preprocessing was performed even though the respective LFO was
158     disabled by the instrument patch (minor efficiency fix)
159 schoenebeck 688 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
160     for volume ramp downs in the same fragment (needed for current voice
161     stealing implementation) then simply inform the user with a warning
162     about possible click sounds and reduce the volume ramp down
163     appropriately instead of cancelling the audio device connection
164 schoenebeck 687
165 schoenebeck 677 Version 0.3.2 (24 June 2005)
166 schoenebeck 609
167     * packaging changes:
168     - updated autotools build files to compile on OS X
169     (conditional compilation of CoreMIDI and MidiShare drivers)
170 schoenebeck 617 - hand-crafted assembly optimization code can be disabled with
171     './configure --disable-asm' (definitely not recommended)
172 schoenebeck 654 - fixed 'make dist' rule to include all necessary files
173     - require automake (>= 1.5) for 'make -f Makefile.cvs'
174     (due to 'dist-bzip2' automake option)
175 schoenebeck 649
176     * Gigasampler format engine:
177     - support for the gig parameters for "release velocity response" curves
178     - fine tuning of the EGADSR envelope
179     - volume of release triggered samples now depends on note-on velocity,
180     note length and gig parameter "release trigger decay" instead of
181     note-off velocity.
182 schoenebeck 663 - revised voice stealing
183     (fixes crash and endless loop caused by voice stealing)
184 schoenebeck 659 - don't reset scale tuning on instrument or audio output device change
185 schoenebeck 668 - handle key group conflicts right at the beginning of each fragment
186     instead of when the respective voice is actually launched
187     (fixes undefined behavior if stolen voices belonged to a key group -
188     this case was followed by a "killed voice survived" error message)
189 schoenebeck 669 - fixed minor issue with null/silence samples
190     (those stole voices even though they don't need a voice at all which
191     resulted in "voice stealing didn't work out" messages)
192 schoenebeck 670 - don't reset volume, pan, pitch and MIDI controller values on
193     instrument or audio output device change
194 schoenebeck 654
195 schoenebeck 620 * LSCP server:
196 schoenebeck 654 - fixed some crashes (patch by Grigor Iliev, fixes #19)
197 schoenebeck 660 - fixed LSCP event "CHANNEL_INFO" notification
198 schoenebeck 670 (e.g. did not notify on volume changes or MIDI program change events)
199 schoenebeck 609
200 schoenebeck 668 * linuxsampler application:
201     - added command line parameters --lscp-addr and --lscp-port to override
202     default IP address and port of LSCP server
203    
204 schoenebeck 579 Version 0.3.1 (24 May 2005)
205    
206     * initial release

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