/[svn]/linuxsampler/trunk/ChangeLog
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revision 670 by schoenebeck, Tue Jun 21 18:00:52 2005 UTC revision 877 by persson, Sun Jun 25 13:54:17 2006 UTC
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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    
65      * LSCP server:
66        - fixed application exit on broken pipe error (fixes bug #20)
67        - fixed the notification messages delay due to lack of
68          network activity (fixes bug #26)
69        - fixed parser bug which occured on space(s) within device parameters
70          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
71    
72      * audio driver:
73        - added aRts audio output driver (by no means RT safe)
74    
75      * MIDI driver:
76        - fixed legacy sysex code which caused dispatching of MIDI SysEx
77          messages several times instead of once
78    
79      * general changes:
80        - support for muting sampler channels and solo mode of the same, two new
81          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
82          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
83          introduced for this, the behavior is the same like on a mixer console
84          (patch by Grigor Iliev, a bit adjusted). Also added configure option
85          --enable-process-muted-channels which can be used to enable the
86          processing of muted channels.
87        - support for sostenuto pedal
88        - support for monitoring the total number of active voices
89          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
90          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
91        - fixed some memory management errors
92        - fixed some concurrency problems that could lead to crashes when
93          LSCP commands were executed
94    
95    Version 0.3.3 (15 July 2005)
96    
97      * packaging changes:
98        - fixed compilation with gcc 4.0
99    
100      * Gigasampler format engine:
101        - LFO preprocessing was performed even though the respective LFO was
102          disabled by the instrument patch (minor efficiency fix)
103        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
104          for volume ramp downs in the same fragment (needed for current voice
105          stealing implementation) then simply inform the user with a warning
106          about possible click sounds and reduce the volume ramp down
107          appropriately instead of cancelling the audio device connection
108    
109    Version 0.3.2 (24 June 2005)
110    
111      * packaging changes:
112      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
113        (conditional compilation of CoreMIDI and MidiShare drivers)        (conditional compilation of CoreMIDI and MidiShare drivers)
114      - hand-crafted assembly optimization code can be disabled with      - hand-crafted assembly optimization code can be disabled with

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