/[svn]/linuxsampler/trunk/ChangeLog
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revision 614 by persson, Mon Jun 6 16:54:20 2005 UTC revision 791 by persson, Sun Oct 16 14:50:20 2005 UTC
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1  Version CVS HEAD (?)  Version CVS HEAD (?)
2    
3    * packaging changes:    * packaging changes:
4        - install necessary development header files for allowing 3rd party
5          applications to link against liblinuxsampler
6        - liblinuxsampler's API documentation can be generated with 'make docs'
7          (Doxygen required)
8        - added benchmark to automatically detect the best triangle LFO
9          implementation (currently either an integer math solution or a
10          di-harmonic approximation), automatic detection can be overriden
11          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
12          configure script argument though (mandatory for cross-compilation)
13    
14      * Gigasampler format engine:
15        - extensive synthesis optimization
16          (reimplementation of EGs and LFO(s), removed synthesis parameter
17          prerendering and the synthesis parameter matrix in general, splitting
18          each audio fragment into subfragments now where each subfragment uses
19          constant synthesis parameters - that is volume, pitch and filter
20          coefficients)
21        - fine tuning of the EG modulation parameters
22        - improved filter cutoff calculation by adding support for the
23          following gig parameters: Cutoff freq (used when no cutoff
24          controller is defined), Control invert, Minimum cutoff, Velocity
25          curve and Velocity range. The keyboard tracking now scales
26          cutoff frequency instead of resonance.
27        - filter fine tuning: calculation of cutoff frequency and
28          bandwidth improved. Removed use of "BasicBPFilter". Changed
29          bandpass filter from constant peak to constant skirt. Added
30          support for gig parameter Resonance.
31        - fixed bug in sysex handling (patch by Juan Linietsky)
32        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
33          which can be overridden with --enable-global-attenuation
34        - EG fixes: made the length of "attack hold" stage more
35          accurate. Release stage can now start before attack stage
36          ends. Cancel release didn't work when sustain was zero.
37    
38    
39      * LSCP server:
40        - fixed application exit on broken pipe error (fixes bug #20)
41    
42      * MIDI driver:
43        - fixed legacy sysex code which caused dispatching of MIDI SysEx
44          messages several times instead of once
45    
46      * general changes:
47        - support for muting sampler channels and solo mode of the same, two new
48          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
49          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
50          introduced for this, the behavior is the same like on a mixer console
51          (patch by Grigor Iliev, a bit adjusted). Also added configure option
52          --enable-process-muted-channels which can be used to enable the
53          processing of muted channels.
54        - support for sostenuto pedal
55        - support for monitoring the total number of active voices
56          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
57          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
58    
59    Version 0.3.3 (15 July 2005)
60    
61      * packaging changes:
62        - fixed compilation with gcc 4.0
63    
64      * Gigasampler format engine:
65        - LFO preprocessing was performed even though the respective LFO was
66          disabled by the instrument patch (minor efficiency fix)
67        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
68          for volume ramp downs in the same fragment (needed for current voice
69          stealing implementation) then simply inform the user with a warning
70          about possible click sounds and reduce the volume ramp down
71          appropriately instead of cancelling the audio device connection
72    
73    Version 0.3.2 (24 June 2005)
74    
75      * packaging changes:
76      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
77        (conditional compilation of CoreMIDI and MidiShare drivers)        (conditional compilation of CoreMIDI and MidiShare drivers)
78    * support for the gig parameters for "release velocity response"      - hand-crafted assembly optimization code can be disabled with
79      curves        './configure --disable-asm' (definitely not recommended)
80    * fine tuning of the EGADSR envelope      - fixed 'make dist' rule to include all necessary files
81        - require automake (>= 1.5) for 'make -f Makefile.cvs'
82          (due to 'dist-bzip2' automake option)
83    
84      * Gigasampler format engine:
85        - support for the gig parameters for "release velocity response" curves
86        - fine tuning of the EGADSR envelope
87        - volume of release triggered samples now depends on note-on velocity,
88          note length and gig parameter "release trigger decay" instead of
89          note-off velocity.
90        - revised voice stealing
91          (fixes crash and endless loop caused by voice stealing)
92        - don't reset scale tuning on instrument or audio output device change
93        - handle key group conflicts right at the beginning of each fragment
94          instead of when the respective voice is actually launched
95          (fixes undefined behavior if stolen voices belonged to a key group -
96          this case was followed by a "killed voice survived" error message)
97        - fixed minor issue with null/silence samples
98          (those stole voices even though they don't need a voice at all which
99          resulted in "voice stealing didn't work out" messages)
100        - don't reset volume, pan, pitch and MIDI controller values on
101          instrument or audio output device change
102    
103      * LSCP server:
104        - fixed some crashes (patch by Grigor Iliev, fixes #19)
105        - fixed LSCP event "CHANNEL_INFO" notification
106          (e.g. did not notify on volume changes or MIDI program change events)
107    
108      * linuxsampler application:
109        - added command line parameters --lscp-addr and --lscp-port to override
110          default IP address and port of LSCP server
111    
112  Version 0.3.1 (24 May 2005)  Version 0.3.1 (24 May 2005)
113    

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