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Contents of /linuxsampler/trunk/ChangeLog

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Revision 781 - (show annotations) (download)
Mon Sep 26 10:17:00 2005 UTC (14 years, 2 months ago) by schoenebeck
File size: 5104 byte(s)
* fixed event handling bug which was introduced by the recent synthesis
  optimizations (events were only processed for the first active voice)
* added global volume attenuation of -9 dB (0.35f) to prevent clipping
  which can be overridden with --enable-global-attenuation

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 - fixed bug in sysex handling (patch by Juan Linietsky)
28 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
29 which can be overridden with --enable-global-attenuation
30
31 * LSCP server:
32 - fixed application exit on broken pipe error (fixes bug #20)
33
34 * MIDI driver:
35 - fixed legacy sysex code which caused dispatching of MIDI SysEx
36 messages several times instead of once
37
38 * general changes:
39 - support for muting sampler channels and solo mode of the same, two new
40 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
41 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
42 introduced for this, the behavior is the same like on a mixer console
43 (patch by Grigor Iliev, a bit adjusted). Also added configure option
44 --enable-process-muted-channels which can be used to enable the
45 processing of muted channels.
46 - support for sostenuto pedal
47 - support for monitoring the total number of active voices
48 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
49 SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
50
51 Version 0.3.3 (15 July 2005)
52
53 * packaging changes:
54 - fixed compilation with gcc 4.0
55
56 * Gigasampler format engine:
57 - LFO preprocessing was performed even though the respective LFO was
58 disabled by the instrument patch (minor efficiency fix)
59 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
60 for volume ramp downs in the same fragment (needed for current voice
61 stealing implementation) then simply inform the user with a warning
62 about possible click sounds and reduce the volume ramp down
63 appropriately instead of cancelling the audio device connection
64
65 Version 0.3.2 (24 June 2005)
66
67 * packaging changes:
68 - updated autotools build files to compile on OS X
69 (conditional compilation of CoreMIDI and MidiShare drivers)
70 - hand-crafted assembly optimization code can be disabled with
71 './configure --disable-asm' (definitely not recommended)
72 - fixed 'make dist' rule to include all necessary files
73 - require automake (>= 1.5) for 'make -f Makefile.cvs'
74 (due to 'dist-bzip2' automake option)
75
76 * Gigasampler format engine:
77 - support for the gig parameters for "release velocity response" curves
78 - fine tuning of the EGADSR envelope
79 - volume of release triggered samples now depends on note-on velocity,
80 note length and gig parameter "release trigger decay" instead of
81 note-off velocity.
82 - revised voice stealing
83 (fixes crash and endless loop caused by voice stealing)
84 - don't reset scale tuning on instrument or audio output device change
85 - handle key group conflicts right at the beginning of each fragment
86 instead of when the respective voice is actually launched
87 (fixes undefined behavior if stolen voices belonged to a key group -
88 this case was followed by a "killed voice survived" error message)
89 - fixed minor issue with null/silence samples
90 (those stole voices even though they don't need a voice at all which
91 resulted in "voice stealing didn't work out" messages)
92 - don't reset volume, pan, pitch and MIDI controller values on
93 instrument or audio output device change
94
95 * LSCP server:
96 - fixed some crashes (patch by Grigor Iliev, fixes #19)
97 - fixed LSCP event "CHANNEL_INFO" notification
98 (e.g. did not notify on volume changes or MIDI program change events)
99
100 * linuxsampler application:
101 - added command line parameters --lscp-addr and --lscp-port to override
102 default IP address and port of LSCP server
103
104 Version 0.3.1 (24 May 2005)
105
106 * initial release

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