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Revision 791 - (hide annotations) (download)
Sun Oct 16 14:50:20 2005 UTC (14 years, 1 month ago) by persson
File size: 5524 byte(s)
* Filter tuning: calculation of cutoff frequency and bandwidth
  improved. Removed use of "BasicBPFilter". Changed bandpass filter
  from constant peak to constant skirt. Use gig parameter Resonance if
  no resonance controller is set. Removed keyboard tracking influence
  on resonance.

1 persson 696 Version CVS HEAD (?)
2    
3 schoenebeck 697 * 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 schoenebeck 715 - 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 schoenebeck 697
14 persson 696 * Gigasampler format engine:
15 schoenebeck 738 - 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 persson 696 - fine tuning of the EG modulation parameters
22 persson 729 - 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 persson 791 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 schoenebeck 775 - fixed bug in sysex handling (patch by Juan Linietsky)
32 schoenebeck 781 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
33     which can be overridden with --enable-global-attenuation
34 persson 783 - 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 persson 696
38 persson 783
39 schoenebeck 711 * LSCP server:
40     - fixed application exit on broken pipe error (fixes bug #20)
41    
42 schoenebeck 775 * MIDI driver:
43     - fixed legacy sysex code which caused dispatching of MIDI SysEx
44     messages several times instead of once
45    
46 schoenebeck 705 * 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 iliev 716 (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 iliev 777 - support for sostenuto pedal
55 iliev 779 - support for monitoring the total number of active voices
56 iliev 778 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
57     SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
58 schoenebeck 705
59 schoenebeck 692 Version 0.3.3 (15 July 2005)
60 schoenebeck 686
61     * packaging changes:
62     - fixed compilation with gcc 4.0
63    
64 schoenebeck 687 * Gigasampler format engine:
65     - LFO preprocessing was performed even though the respective LFO was
66     disabled by the instrument patch (minor efficiency fix)
67 schoenebeck 688 - 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 schoenebeck 687
73 schoenebeck 677 Version 0.3.2 (24 June 2005)
74 schoenebeck 609
75     * packaging changes:
76     - updated autotools build files to compile on OS X
77     (conditional compilation of CoreMIDI and MidiShare drivers)
78 schoenebeck 617 - hand-crafted assembly optimization code can be disabled with
79     './configure --disable-asm' (definitely not recommended)
80 schoenebeck 654 - 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 schoenebeck 649
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 schoenebeck 663 - revised voice stealing
91     (fixes crash and endless loop caused by voice stealing)
92 schoenebeck 659 - don't reset scale tuning on instrument or audio output device change
93 schoenebeck 668 - 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 schoenebeck 669 - 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 schoenebeck 670 - don't reset volume, pan, pitch and MIDI controller values on
101     instrument or audio output device change
102 schoenebeck 654
103 schoenebeck 620 * LSCP server:
104 schoenebeck 654 - fixed some crashes (patch by Grigor Iliev, fixes #19)
105 schoenebeck 660 - fixed LSCP event "CHANNEL_INFO" notification
106 schoenebeck 670 (e.g. did not notify on volume changes or MIDI program change events)
107 schoenebeck 609
108 schoenebeck 668 * 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 schoenebeck 579 Version 0.3.1 (24 May 2005)
113    
114     * initial release

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