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Contents of /linuxsampler/trunk/ChangeLog

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Revision 738 - (show annotations) (download)
Tue Aug 16 17:14:25 2005 UTC (18 years, 7 months ago) by schoenebeck
File size: 4535 byte(s)
* extensive synthesis optimization: reimplementation of EGs and LFO(s),
  removed synthesis parameter prerendering and the synthesis parameter
  matrix in general, splitting each audio fragment into subfragments now
  where each subfragment uses constant synthesis parameters
  (everything's still very buggy ATM)

1 Version CVS HEAD (?)
2
3 * 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 also scales
26 cutoff frequency, not just resonance.
27
28 * LSCP server:
29 - fixed application exit on broken pipe error (fixes bug #20)
30
31 * general changes:
32 - support for muting sampler channels and solo mode of the same, two new
33 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
34 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
35 introduced for this, the behavior is the same like on a mixer console
36 (patch by Grigor Iliev, a bit adjusted). Also added configure option
37 --enable-process-muted-channels which can be used to enable the
38 processing of muted channels.
39
40 Version 0.3.3 (15 July 2005)
41
42 * packaging changes:
43 - fixed compilation with gcc 4.0
44
45 * Gigasampler format engine:
46 - LFO preprocessing was performed even though the respective LFO was
47 disabled by the instrument patch (minor efficiency fix)
48 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
49 for volume ramp downs in the same fragment (needed for current voice
50 stealing implementation) then simply inform the user with a warning
51 about possible click sounds and reduce the volume ramp down
52 appropriately instead of cancelling the audio device connection
53
54 Version 0.3.2 (24 June 2005)
55
56 * packaging changes:
57 - updated autotools build files to compile on OS X
58 (conditional compilation of CoreMIDI and MidiShare drivers)
59 - hand-crafted assembly optimization code can be disabled with
60 './configure --disable-asm' (definitely not recommended)
61 - fixed 'make dist' rule to include all necessary files
62 - require automake (>= 1.5) for 'make -f Makefile.cvs'
63 (due to 'dist-bzip2' automake option)
64
65 * Gigasampler format engine:
66 - support for the gig parameters for "release velocity response" curves
67 - fine tuning of the EGADSR envelope
68 - volume of release triggered samples now depends on note-on velocity,
69 note length and gig parameter "release trigger decay" instead of
70 note-off velocity.
71 - revised voice stealing
72 (fixes crash and endless loop caused by voice stealing)
73 - don't reset scale tuning on instrument or audio output device change
74 - handle key group conflicts right at the beginning of each fragment
75 instead of when the respective voice is actually launched
76 (fixes undefined behavior if stolen voices belonged to a key group -
77 this case was followed by a "killed voice survived" error message)
78 - fixed minor issue with null/silence samples
79 (those stole voices even though they don't need a voice at all which
80 resulted in "voice stealing didn't work out" messages)
81 - don't reset volume, pan, pitch and MIDI controller values on
82 instrument or audio output device change
83
84 * LSCP server:
85 - fixed some crashes (patch by Grigor Iliev, fixes #19)
86 - fixed LSCP event "CHANNEL_INFO" notification
87 (e.g. did not notify on volume changes or MIDI program change events)
88
89 * linuxsampler application:
90 - added command line parameters --lscp-addr and --lscp-port to override
91 default IP address and port of LSCP server
92
93 Version 0.3.1 (24 May 2005)
94
95 * initial release

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