/[svn]/linuxsampler/trunk/ChangeLog
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revision 659 by schoenebeck, Thu Jun 16 21:35:30 2005 UTC revision 903 by persson, Sat Jul 22 14:22:53 2006 UTC
# Line 1  Line 1 
1  Version CVS HEAD (?)  Version CVS HEAD (?)
2    
3    * packaging changes:    * packaging changes:
4        - changed deprecated copyright attribute to license; added ldconfig
5          to post-(un)install steps; added devel package for liblinuxsampler;
6          to linuxsampler.spec (RPM)
7        - install necessary development header files for allowing 3rd party
8          applications to link against liblinuxsampler
9        - liblinuxsampler's API documentation can be generated with 'make docs'
10          (Doxygen required)
11        - added benchmark to automatically detect the best triangle LFO
12          implementation (currently either an integer math solution or a
13          di-harmonic approximation), automatic detection can be overriden
14          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
15          configure script argument though (mandatory for cross-compilation)
16        - do not automatically pick optimized gcc flags if the user already
17          provided some on his own (as CXXFLAGS)
18        - added compile time option to disable processing of All-Notes-Off MIDI
19          messages
20        - added compile time options to allow disabling the various audio and
21          MIDI drivers
22    
23      * Gigasampler format engine:
24        - extensive synthesis optimization
25          (reimplementation of EGs and LFO(s), removed synthesis parameter
26          prerendering and the synthesis parameter matrix in general, splitting
27          each audio fragment into subfragments now where each subfragment uses
28          constant pitch and filter coefficients. The volume coefficient is
29          linearly interpolated inside a subfragment, unless
30          --disable-interpolate-volume is set.)
31        - fine tuning of the EG modulation parameters
32        - improved filter cutoff calculation by adding support for the
33          following gig parameters: Cutoff freq (used when no cutoff
34          controller is defined), Control invert, Minimum cutoff, Velocity
35          curve and Velocity range. The keyboard tracking now scales
36          cutoff frequency instead of resonance.
37        - added support for gig parameter Resonance.
38        - fixed bug in sysex handling (patch by Juan Linietsky)
39        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
40          which can be overridden with --enable-global-attenuation
41        - EG fixes: made the length of "attack hold" stage more
42          accurate. Release stage can now start before attack stage
43          ends. Cancel release didn't work when sustain was zero. Attack
44          time now has a minimal value to prevent clicks.
45        - fixed pitch changes larger than one octave
46        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
47        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
48          all modes can be altered via standard GM messages, that is CC5 for
49          altering portamento time, CC65 for enabling / disabling portamento
50          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
51        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
52          parameter) and crossfade
53        - added support for the "attenuation controller threshold" gig
54          parameter
55        - added smoothing of volume changes caused by control change
56          messages
57        - sample loop parameters are now taken from the DimensionRegion
58          instead of the wave chunk
59        - fixed keyswitching for v3 gigs with a number of keyswitch splits
60          not equal to a power of two
61        - reimplementation of the filter algorithm. The new filter is more
62          accurate and supports all gig filter types, including bandreject
63          and lowpass turbo.
64        - real support for 24 bit samples - samples are not truncated to
65          16 bits anymore
66        - support for aftertouch (channel pressure, not polyphonic
67          aftertouch)
68    
69      * LSCP server:
70        - fixed application exit on broken pipe error (fixes bug #20)
71        - fixed the notification messages delay due to lack of
72          network activity (fixes bug #26)
73        - fixed parser bug which occured on space(s) within device parameters
74          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
75    
76      * audio driver:
77        - added aRts audio output driver (by no means RT safe)
78    
79      * MIDI driver:
80        - fixed legacy sysex code which caused dispatching of MIDI SysEx
81          messages several times instead of once
82    
83      * linuxsampler application:
84        - show available sampler engine types on startup
85    
86      * general changes:
87        - support for muting sampler channels and solo mode of the same, two new
88          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
89          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
90          introduced for this, the behavior is the same like on a mixer console
91          (patch by Grigor Iliev, a bit adjusted). Also added configure option
92          --enable-process-muted-channels which can be used to enable the
93          processing of muted channels.
94        - support for sostenuto pedal
95        - support for monitoring the total number of active voices
96          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
97          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
98        - fixed some memory management errors
99        - fixed some concurrency problems that could lead to crashes when
100          LSCP commands were executed
101    
102    Version 0.3.3 (15 July 2005)
103    
104      * packaging changes:
105        - fixed compilation with gcc 4.0
106    
107      * Gigasampler format engine:
108        - LFO preprocessing was performed even though the respective LFO was
109          disabled by the instrument patch (minor efficiency fix)
110        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
111          for volume ramp downs in the same fragment (needed for current voice
112          stealing implementation) then simply inform the user with a warning
113          about possible click sounds and reduce the volume ramp down
114          appropriately instead of cancelling the audio device connection
115    
116    Version 0.3.2 (24 June 2005)
117    
118      * packaging changes:
119      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
120        (conditional compilation of CoreMIDI and MidiShare drivers)        (conditional compilation of CoreMIDI and MidiShare drivers)
121      - hand-crafted assembly optimization code can be disabled with      - hand-crafted assembly optimization code can be disabled with
# Line 15  Version CVS HEAD (?) Line 130  Version CVS HEAD (?)
130      - volume of release triggered samples now depends on note-on velocity,      - volume of release triggered samples now depends on note-on velocity,
131        note length and gig parameter "release trigger decay" instead of        note length and gig parameter "release trigger decay" instead of
132        note-off velocity.        note-off velocity.
133      - revised voice stealing (fixes crash caused by voice stealing)      - revised voice stealing
134          (fixes crash and endless loop caused by voice stealing)
135      - don't reset scale tuning on instrument or audio output device change      - don't reset scale tuning on instrument or audio output device change
136        - handle key group conflicts right at the beginning of each fragment
137          instead of when the respective voice is actually launched
138          (fixes undefined behavior if stolen voices belonged to a key group -
139          this case was followed by a "killed voice survived" error message)
140        - fixed minor issue with null/silence samples
141          (those stole voices even though they don't need a voice at all which
142          resulted in "voice stealing didn't work out" messages)
143        - don't reset volume, pan, pitch and MIDI controller values on
144          instrument or audio output device change
145    
146    * LSCP server:    * LSCP server:
147      - fixed some crashes (patch by Grigor Iliev, fixes #19)      - fixed some crashes (patch by Grigor Iliev, fixes #19)
148        - fixed LSCP event "CHANNEL_INFO" notification
149          (e.g. did not notify on volume changes or MIDI program change events)
150    
151      * linuxsampler application:
152        - added command line parameters --lscp-addr and --lscp-port to override
153          default IP address and port of LSCP server
154    
155  Version 0.3.1 (24 May 2005)  Version 0.3.1 (24 May 2005)
156    

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