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revision 660 by schoenebeck, Fri Jun 17 19:49:30 2005 UTC revision 990 by schoenebeck, Tue Dec 19 19:40:45 2006 UTC
# Line 1  Line 1 
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    
26      * MIDI driver:
27        - dispatch bank select (MSB and LSB) messages
28    
29      * Gigasampler format engine:
30        - if a filter is used and EG2 finishes before EG1, let the voice
31          die when EG2 has finished (this fixes a problem with clicks and
32          voice starvation for some gigs)
33    
34      * Bug fixes:
35        - fixed crash occurring on certain LSCP scripts (Bug 39)
36    
37    Version 0.4.0 (24 November 2006)
38    
39      * packaging changes:
40        - changed deprecated copyright attribute to license; added ldconfig
41          to post-(un)install steps; added devel package for liblinuxsampler;
42          to linuxsampler.spec (RPM)
43        - install necessary development header files for allowing 3rd party
44          applications to link against liblinuxsampler
45        - liblinuxsampler's API documentation can be generated with 'make docs'
46          (Doxygen required)
47        - added benchmark to automatically detect the best triangle LFO
48          implementation (currently either an integer math solution or a
49          di-harmonic approximation), automatic detection can be overriden
50          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
51          configure script argument though (mandatory for cross-compilation)
52        - do not automatically pick optimized gcc flags if the user already
53          provided some on his own (as CXXFLAGS)
54        - added compile time option to disable processing of All-Notes-Off MIDI
55          messages
56        - added compile time options to allow disabling the various audio and
57          MIDI drivers
58        - fixed automatic GCC CPU switch detection on PPC
59          (patch by Ebrahim Mayat)
60    
61      * Gigasampler format engine:
62        - extensive synthesis optimization
63          (reimplementation of EGs and LFO(s), removed synthesis parameter
64          prerendering and the synthesis parameter matrix in general, splitting
65          each audio fragment into subfragments now where each subfragment uses
66          constant pitch and filter coefficients. The volume coefficient is
67          linearly interpolated inside a subfragment, unless
68          --disable-interpolate-volume is set.)
69        - fine tuning of the EG modulation parameters
70        - improved filter cutoff calculation by adding support for the
71          following gig parameters: Cutoff freq (used when no cutoff
72          controller is defined), Control invert, Minimum cutoff, Velocity
73          curve and Velocity range. The keyboard tracking now scales
74          cutoff frequency instead of resonance.
75        - added support for gig parameter Resonance.
76        - fixed bug in sysex handling (patch by Juan Linietsky)
77        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
78          which can be overridden with --enable-global-attenuation
79        - EG fixes: made the length of "attack hold" stage more
80          accurate. Release stage can now start before attack stage
81          ends. Cancel release didn't work when sustain was zero. Attack
82          time now has a minimal value to prevent clicks.
83        - fixed pitch changes larger than one octave
84        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
85        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
86          all modes can be altered via standard GM messages, that is CC5 for
87          altering portamento time, CC65 for enabling / disabling portamento
88          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
89        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
90          parameter) and crossfade
91        - added support for the "attenuation controller threshold" gig
92          parameter
93        - added smoothing of volume changes caused by control change
94          messages
95        - sample loop parameters are now taken from the DimensionRegion
96          instead of the wave chunk
97        - fixed keyswitching for v3 gigs with a number of keyswitch splits
98          not equal to a power of two
99        - reimplementation of the filter algorithm. The new filter is more
100          accurate and supports all gig filter types, including bandreject
101          and lowpass turbo.
102        - real support for 24 bit samples - samples are not truncated to
103          16 bits anymore
104        - support for aftertouch (channel pressure, not polyphonic
105          aftertouch)
106        - LFO1 behaviour fixed (dampening from max volume instead of
107          amplifying from 0)
108    
109      * LSCP server:
110        - fixed application exit on broken pipe error (fixes bug #20)
111        - fixed the notification messages delay due to lack of
112          network activity (fixes bug #26)
113        - fixed parser bug which occured on space(s) within device parameters
114          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
115    
116      * audio driver:
117        - added aRts audio output driver (by no means RT safe)
118    
119      * MIDI driver:
120        - fixed legacy sysex code which caused dispatching of MIDI SysEx
121          messages several times instead of once
122        - API extension for MIDI drivers which already supply exact time stamps
123          for events (i.e. for offline rendering based MIDI drivers)
124        - added checks for bad MIDI data
125    
126      * linuxsampler application:
127        - show available sampler engine types on startup
128    
129      * general changes:
130        - support for muting sampler channels and solo mode of the same, two new
131          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
132          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
133          introduced for this, the behavior is the same like on a mixer console
134          (patch by Grigor Iliev, a bit adjusted). Also added configure option
135          --enable-process-muted-channels which can be used to enable the
136          processing of muted channels.
137        - support for sostenuto pedal
138        - support for monitoring the total number of active voices
139          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
140          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
141        - fixed some memory management errors
142        - fixed some concurrency problems that could lead to crashes when
143          LSCP commands were executed
144        - fixed crash when instrument loading failed previously on the same
145          sampler channel (fixes bug #36)
146    
147    Version 0.3.3 (15 July 2005)
148    
149      * packaging changes:
150        - fixed compilation with gcc 4.0
151    
152      * Gigasampler format engine:
153        - LFO preprocessing was performed even though the respective LFO was
154          disabled by the instrument patch (minor efficiency fix)
155        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
156          for volume ramp downs in the same fragment (needed for current voice
157          stealing implementation) then simply inform the user with a warning
158          about possible click sounds and reduce the volume ramp down
159          appropriately instead of cancelling the audio device connection
160    
161    Version 0.3.2 (24 June 2005)
162    
163    * packaging changes:    * packaging changes:
164      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
165        (conditional compilation of CoreMIDI and MidiShare drivers)        (conditional compilation of CoreMIDI and MidiShare drivers)
# Line 15  Version CVS HEAD (?) Line 175  Version CVS HEAD (?)
175      - volume of release triggered samples now depends on note-on velocity,      - volume of release triggered samples now depends on note-on velocity,
176        note length and gig parameter "release trigger decay" instead of        note length and gig parameter "release trigger decay" instead of
177        note-off velocity.        note-off velocity.
178      - revised voice stealing (fixes crash caused by voice stealing)      - revised voice stealing
179          (fixes crash and endless loop caused by voice stealing)
180      - don't reset scale tuning on instrument or audio output device change      - don't reset scale tuning on instrument or audio output device change
181        - handle key group conflicts right at the beginning of each fragment
182          instead of when the respective voice is actually launched
183          (fixes undefined behavior if stolen voices belonged to a key group -
184          this case was followed by a "killed voice survived" error message)
185        - fixed minor issue with null/silence samples
186          (those stole voices even though they don't need a voice at all which
187          resulted in "voice stealing didn't work out" messages)
188        - don't reset volume, pan, pitch and MIDI controller values on
189          instrument or audio output device change
190    
191    * LSCP server:    * LSCP server:
192      - fixed some crashes (patch by Grigor Iliev, fixes #19)      - fixed some crashes (patch by Grigor Iliev, fixes #19)
193      - fixed LSCP event "CHANNEL_INFO" notification      - fixed LSCP event "CHANNEL_INFO" notification
194        (e.g. did not notify on volume changes)        (e.g. did not notify on volume changes or MIDI program change events)
195    
196      * linuxsampler application:
197        - added command line parameters --lscp-addr and --lscp-port to override
198          default IP address and port of LSCP server
199    
200  Version 0.3.1 (24 May 2005)  Version 0.3.1 (24 May 2005)
201    

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