/[svn]/linuxsampler/trunk/ChangeLog
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revision 688 by schoenebeck, Thu Jul 14 12:25:20 2005 UTC revision 1005 by schoenebeck, Fri Dec 29 20:06:14 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        - global (sampler wide) volume can now be controlled at runtime
30    
31      * MIDI driver:
32        - dispatch bank select (MSB and LSB) messages
33    
34      * 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    
39      * Bug fixes:
40        - fixed crash occurring on certain LSCP scripts (Bug 39)
41    
42    Version 0.4.0 (24 November 2006)
43    
44      * packaging changes:
45        - changed deprecated copyright attribute to license; added ldconfig
46          to post-(un)install steps; added devel package for liblinuxsampler;
47          to linuxsampler.spec (RPM)
48        - install necessary development header files for allowing 3rd party
49          applications to link against liblinuxsampler
50        - liblinuxsampler's API documentation can be generated with 'make docs'
51          (Doxygen required)
52        - added benchmark to automatically detect the best triangle LFO
53          implementation (currently either an integer math solution or a
54          di-harmonic approximation), automatic detection can be overriden
55          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
56          configure script argument though (mandatory for cross-compilation)
57        - do not automatically pick optimized gcc flags if the user already
58          provided some on his own (as CXXFLAGS)
59        - added compile time option to disable processing of All-Notes-Off MIDI
60          messages
61        - added compile time options to allow disabling the various audio and
62          MIDI drivers
63        - fixed automatic GCC CPU switch detection on PPC
64          (patch by Ebrahim Mayat)
65    
66      * Gigasampler format engine:
67        - extensive synthesis optimization
68          (reimplementation of EGs and LFO(s), removed synthesis parameter
69          prerendering and the synthesis parameter matrix in general, splitting
70          each audio fragment into subfragments now where each subfragment uses
71          constant pitch and filter coefficients. The volume coefficient is
72          linearly interpolated inside a subfragment, unless
73          --disable-interpolate-volume is set.)
74        - fine tuning of the EG modulation parameters
75        - improved filter cutoff calculation by adding support for the
76          following gig parameters: Cutoff freq (used when no cutoff
77          controller is defined), Control invert, Minimum cutoff, Velocity
78          curve and Velocity range. The keyboard tracking now scales
79          cutoff frequency instead of resonance.
80        - added support for gig parameter Resonance.
81        - fixed bug in sysex handling (patch by Juan Linietsky)
82        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
83          which can be overridden with --enable-global-attenuation
84        - EG fixes: made the length of "attack hold" stage more
85          accurate. Release stage can now start before attack stage
86          ends. Cancel release didn't work when sustain was zero. Attack
87          time now has a minimal value to prevent clicks.
88        - fixed pitch changes larger than one octave
89        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
90        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
91          all modes can be altered via standard GM messages, that is CC5 for
92          altering portamento time, CC65 for enabling / disabling portamento
93          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
94        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
95          parameter) and crossfade
96        - added support for the "attenuation controller threshold" gig
97          parameter
98        - added smoothing of volume changes caused by control change
99          messages
100        - sample loop parameters are now taken from the DimensionRegion
101          instead of the wave chunk
102        - fixed keyswitching for v3 gigs with a number of keyswitch splits
103          not equal to a power of two
104        - reimplementation of the filter algorithm. The new filter is more
105          accurate and supports all gig filter types, including bandreject
106          and lowpass turbo.
107        - real support for 24 bit samples - samples are not truncated to
108          16 bits anymore
109        - support for aftertouch (channel pressure, not polyphonic
110          aftertouch)
111        - LFO1 behaviour fixed (dampening from max volume instead of
112          amplifying from 0)
113    
114      * LSCP server:
115        - fixed application exit on broken pipe error (fixes bug #20)
116        - fixed the notification messages delay due to lack of
117          network activity (fixes bug #26)
118        - fixed parser bug which occured on space(s) within device parameters
119          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
120    
121      * audio driver:
122        - added aRts audio output driver (by no means RT safe)
123    
124      * MIDI driver:
125        - fixed legacy sysex code which caused dispatching of MIDI SysEx
126          messages several times instead of once
127        - API extension for MIDI drivers which already supply exact time stamps
128          for events (i.e. for offline rendering based MIDI drivers)
129        - added checks for bad MIDI data
130    
131      * linuxsampler application:
132        - show available sampler engine types on startup
133    
134      * general changes:
135        - support for muting sampler channels and solo mode of the same, two new
136          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
137          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
138          introduced for this, the behavior is the same like on a mixer console
139          (patch by Grigor Iliev, a bit adjusted). Also added configure option
140          --enable-process-muted-channels which can be used to enable the
141          processing of muted channels.
142        - support for sostenuto pedal
143        - support for monitoring the total number of active voices
144          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
145          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
146        - fixed some memory management errors
147        - fixed some concurrency problems that could lead to crashes when
148          LSCP commands were executed
149        - fixed crash when instrument loading failed previously on the same
150          sampler channel (fixes bug #36)
151    
152    Version 0.3.3 (15 July 2005)
153    
154    * packaging changes:    * packaging changes:
155      - fixed compilation with gcc 4.0      - fixed compilation with gcc 4.0
156    

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