/[svn]/linuxsampler/trunk/ChangeLog
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revision 630 by persson, Sat Jun 11 14:51:49 2005 UTC revision 947 by schoenebeck, Mon Nov 27 21:34:55 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 MSB, MIDI bank LSB, MIDI program) triplets 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
17    
18      * MIDI driver:
19        - dispatch bank select (MSB and LSB) messages
20    
21    Version 0.4.0 (24 November 2006)
22    
23      * packaging changes:
24        - changed deprecated copyright attribute to license; added ldconfig
25          to post-(un)install steps; added devel package for liblinuxsampler;
26          to linuxsampler.spec (RPM)
27        - install necessary development header files for allowing 3rd party
28          applications to link against liblinuxsampler
29        - liblinuxsampler's API documentation can be generated with 'make docs'
30          (Doxygen required)
31        - added benchmark to automatically detect the best triangle LFO
32          implementation (currently either an integer math solution or a
33          di-harmonic approximation), automatic detection can be overriden
34          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
35          configure script argument though (mandatory for cross-compilation)
36        - do not automatically pick optimized gcc flags if the user already
37          provided some on his own (as CXXFLAGS)
38        - added compile time option to disable processing of All-Notes-Off MIDI
39          messages
40        - added compile time options to allow disabling the various audio and
41          MIDI drivers
42        - fixed automatic GCC CPU switch detection on PPC
43          (patch by Ebrahim Mayat)
44    
45      * Gigasampler format engine:
46        - extensive synthesis optimization
47          (reimplementation of EGs and LFO(s), removed synthesis parameter
48          prerendering and the synthesis parameter matrix in general, splitting
49          each audio fragment into subfragments now where each subfragment uses
50          constant pitch and filter coefficients. The volume coefficient is
51          linearly interpolated inside a subfragment, unless
52          --disable-interpolate-volume is set.)
53        - fine tuning of the EG modulation parameters
54        - improved filter cutoff calculation by adding support for the
55          following gig parameters: Cutoff freq (used when no cutoff
56          controller is defined), Control invert, Minimum cutoff, Velocity
57          curve and Velocity range. The keyboard tracking now scales
58          cutoff frequency instead of resonance.
59        - added support for gig parameter Resonance.
60        - fixed bug in sysex handling (patch by Juan Linietsky)
61        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
62          which can be overridden with --enable-global-attenuation
63        - EG fixes: made the length of "attack hold" stage more
64          accurate. Release stage can now start before attack stage
65          ends. Cancel release didn't work when sustain was zero. Attack
66          time now has a minimal value to prevent clicks.
67        - fixed pitch changes larger than one octave
68        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
69        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
70          all modes can be altered via standard GM messages, that is CC5 for
71          altering portamento time, CC65 for enabling / disabling portamento
72          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
73        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
74          parameter) and crossfade
75        - added support for the "attenuation controller threshold" gig
76          parameter
77        - added smoothing of volume changes caused by control change
78          messages
79        - sample loop parameters are now taken from the DimensionRegion
80          instead of the wave chunk
81        - fixed keyswitching for v3 gigs with a number of keyswitch splits
82          not equal to a power of two
83        - reimplementation of the filter algorithm. The new filter is more
84          accurate and supports all gig filter types, including bandreject
85          and lowpass turbo.
86        - real support for 24 bit samples - samples are not truncated to
87          16 bits anymore
88        - support for aftertouch (channel pressure, not polyphonic
89          aftertouch)
90        - LFO1 behaviour fixed (dampening from max volume instead of
91          amplifying from 0)
92    
93      * LSCP server:
94        - fixed application exit on broken pipe error (fixes bug #20)
95        - fixed the notification messages delay due to lack of
96          network activity (fixes bug #26)
97        - fixed parser bug which occured on space(s) within device parameters
98          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
99    
100      * audio driver:
101        - added aRts audio output driver (by no means RT safe)
102    
103      * MIDI driver:
104        - fixed legacy sysex code which caused dispatching of MIDI SysEx
105          messages several times instead of once
106        - API extension for MIDI drivers which already supply exact time stamps
107          for events (i.e. for offline rendering based MIDI drivers)
108        - added checks for bad MIDI data
109    
110      * linuxsampler application:
111        - show available sampler engine types on startup
112    
113      * general changes:
114        - support for muting sampler channels and solo mode of the same, two new
115          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
116          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
117          introduced for this, the behavior is the same like on a mixer console
118          (patch by Grigor Iliev, a bit adjusted). Also added configure option
119          --enable-process-muted-channels which can be used to enable the
120          processing of muted channels.
121        - support for sostenuto pedal
122        - support for monitoring the total number of active voices
123          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
124          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
125        - fixed some memory management errors
126        - fixed some concurrency problems that could lead to crashes when
127          LSCP commands were executed
128        - fixed crash when instrument loading failed previously on the same
129          sampler channel (fixes bug #36)
130    
131    Version 0.3.3 (15 July 2005)
132    
133      * packaging changes:
134        - fixed compilation with gcc 4.0
135    
136      * Gigasampler format engine:
137        - LFO preprocessing was performed even though the respective LFO was
138          disabled by the instrument patch (minor efficiency fix)
139        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
140          for volume ramp downs in the same fragment (needed for current voice
141          stealing implementation) then simply inform the user with a warning
142          about possible click sounds and reduce the volume ramp down
143          appropriately instead of cancelling the audio device connection
144    
145    Version 0.3.2 (24 June 2005)
146    
147    * packaging changes:    * packaging changes:
148      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
149        (conditional compilation of CoreMIDI and MidiShare drivers)        (conditional compilation of CoreMIDI and MidiShare drivers)
150      - hand-crafted assembly optimization code can be disabled with      - hand-crafted assembly optimization code can be disabled with
151        './configure --disable-asm' (definitely not recommended)        './configure --disable-asm' (definitely not recommended)
152    * support for the gig parameters for "release velocity response"      - fixed 'make dist' rule to include all necessary files
153      curves      - require automake (>= 1.5) for 'make -f Makefile.cvs'
154    * fine tuning of the EGADSR envelope        (due to 'dist-bzip2' automake option)
155    
156      * Gigasampler format engine:
157        - support for the gig parameters for "release velocity response" curves
158        - fine tuning of the EGADSR envelope
159        - volume of release triggered samples now depends on note-on velocity,
160          note length and gig parameter "release trigger decay" instead of
161          note-off velocity.
162        - revised voice stealing
163          (fixes crash and endless loop caused by voice stealing)
164        - don't reset scale tuning on instrument or audio output device change
165        - handle key group conflicts right at the beginning of each fragment
166          instead of when the respective voice is actually launched
167          (fixes undefined behavior if stolen voices belonged to a key group -
168          this case was followed by a "killed voice survived" error message)
169        - fixed minor issue with null/silence samples
170          (those stole voices even though they don't need a voice at all which
171          resulted in "voice stealing didn't work out" messages)
172        - don't reset volume, pan, pitch and MIDI controller values on
173          instrument or audio output device change
174    
175    * LSCP server:    * LSCP server:
176      - fixed some crashes (patch by Grigor Iliev, fixes #19)      - fixed some crashes (patch by Grigor Iliev, fixes #19)
177    * volume of release triggered samples now depends on note-on      - fixed LSCP event "CHANNEL_INFO" notification
178      velocity, note length and gig parameter "release trigger decay"        (e.g. did not notify on volume changes or MIDI program change events)
179      instead of note-off velocity.  
180      * linuxsampler application:
181        - added command line parameters --lscp-addr and --lscp-port to override
182          default IP address and port of LSCP server
183    
184  Version 0.3.1 (24 May 2005)  Version 0.3.1 (24 May 2005)
185    

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