/[svn]/linuxsampler/trunk/ChangeLog
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revision 688 by schoenebeck, Thu Jul 14 12:25:20 2005 UTC revision 1001 by schoenebeck, Wed Dec 27 16:17:08 2006 UTC
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1  Version CVS HEAD (?)  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          (MIDI bank, MIDI program) pairs with arbitrary
7          (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          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        - new notification events for tracking audio/MIDI device changes,
21          MIDI instrument map changes and MIDI instrument changes
22        - 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        - 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    
30      * MIDI driver:
31        - dispatch bank select (MSB and LSB) messages
32    
33      * 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      * Bug fixes:
39        - fixed crash occurring on certain LSCP scripts (Bug 39)
40    
41    Version 0.4.0 (24 November 2006)
42    
43      * packaging changes:
44        - 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        - 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        - 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        - do not automatically pick optimized gcc flags if the user already
57          provided some on his own (as CXXFLAGS)
58        - added compile time option to disable processing of All-Notes-Off MIDI
59          messages
60        - added compile time options to allow disabling the various audio and
61          MIDI drivers
62        - fixed automatic GCC CPU switch detection on PPC
63          (patch by Ebrahim Mayat)
64    
65      * Gigasampler format engine:
66        - 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          constant pitch and filter coefficients. The volume coefficient is
71          linearly interpolated inside a subfragment, unless
72          --disable-interpolate-volume is set.)
73        - fine tuning of the EG modulation parameters
74        - 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          curve and Velocity range. The keyboard tracking now scales
78          cutoff frequency instead of resonance.
79        - added support for gig parameter Resonance.
80        - fixed bug in sysex handling (patch by Juan Linietsky)
81        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
82          which can be overridden with --enable-global-attenuation
83        - EG fixes: made the length of "attack hold" stage more
84          accurate. Release stage can now start before attack stage
85          ends. Cancel release didn't work when sustain was zero. Attack
86          time now has a minimal value to prevent clicks.
87        - fixed pitch changes larger than one octave
88        - 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        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
94          parameter) and crossfade
95        - added support for the "attenuation controller threshold" gig
96          parameter
97        - added smoothing of volume changes caused by control change
98          messages
99        - 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        - 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        - 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        - LFO1 behaviour fixed (dampening from max volume instead of
111          amplifying from 0)
112    
113      * LSCP server:
114        - fixed application exit on broken pipe error (fixes bug #20)
115        - fixed the notification messages delay due to lack of
116          network activity (fixes bug #26)
117        - 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    
120      * audio driver:
121        - added aRts audio output driver (by no means RT safe)
122    
123      * MIDI driver:
124        - fixed legacy sysex code which caused dispatching of MIDI SysEx
125          messages several times instead of once
126        - API extension for MIDI drivers which already supply exact time stamps
127          for events (i.e. for offline rendering based MIDI drivers)
128        - added checks for bad MIDI data
129    
130      * linuxsampler application:
131        - show available sampler engine types on startup
132    
133      * 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          (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        - support for sostenuto pedal
142        - support for monitoring the total number of active voices
143          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
144          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
145        - fixed some memory management errors
146        - fixed some concurrency problems that could lead to crashes when
147          LSCP commands were executed
148        - fixed crash when instrument loading failed previously on the same
149          sampler channel (fixes bug #36)
150    
151    Version 0.3.3 (15 July 2005)
152    
153    * packaging changes:    * packaging changes:
154      - fixed compilation with gcc 4.0      - fixed compilation with gcc 4.0
155    

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