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Contents of /linuxsampler/trunk/ChangeLog

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Revision 849 - (show annotations) (download)
Sat Mar 25 13:05:59 2006 UTC (13 years, 8 months ago) by schoenebeck
File size: 7019 byte(s)
* added compile time option to disable processing of All-Notes-Off
  MIDI messages

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 - do not automatically pick optimized gcc flags if the user already
14 provided some on his own (as CXXFLAGS)
15 - added compile time option to disable processing of All-Notes-Off MIDI
16 messages
17
18 * Gigasampler format engine:
19 - extensive synthesis optimization
20 (reimplementation of EGs and LFO(s), removed synthesis parameter
21 prerendering and the synthesis parameter matrix in general, splitting
22 each audio fragment into subfragments now where each subfragment uses
23 constant pitch and filter coefficients. The volume coefficient is
24 linearly interpolated inside a subfragment, unless
25 --disable-interpolate-volume is set.)
26 - fine tuning of the EG modulation parameters
27 - improved filter cutoff calculation by adding support for the
28 following gig parameters: Cutoff freq (used when no cutoff
29 controller is defined), Control invert, Minimum cutoff, Velocity
30 curve and Velocity range. The keyboard tracking now scales
31 cutoff frequency instead of resonance.
32 - filter fine tuning: calculation of cutoff frequency and
33 bandwidth improved. Removed use of "BasicBPFilter". Changed
34 bandpass filter from constant peak to constant skirt. Added
35 support for gig parameter Resonance.
36 - fixed bug in sysex handling (patch by Juan Linietsky)
37 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
38 which can be overridden with --enable-global-attenuation
39 - EG fixes: made the length of "attack hold" stage more
40 accurate. Release stage can now start before attack stage
41 ends. Cancel release didn't work when sustain was zero. Attack
42 time now has a minimal value to prevent clicks.
43 - fixed pitch changes larger than one octave
44 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
45 - implemented portamento mode and solo mode (a.k.a 'mono mode'):
46 all modes can be altered via standard GM messages, that is CC5 for
47 altering portamento time, CC65 for enabling / disabling portamento
48 mode, CC126 for enabling solo mode and CC127 for disabling solo mode
49 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
50 parameter) and crossfade
51 - added support for the "attenuation controller threshold" gig
52 parameter
53 - added smoothing of volume changes caused by control change
54 messages
55
56 * LSCP server:
57 - fixed application exit on broken pipe error (fixes bug #20)
58 - fixed the notification messages delay due to lack of
59 network activity (fixes bug #26)
60 - fixed parser bug which occured on space(s) within device parameters
61 (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
62
63 * audio driver:
64 - added aRts audio output driver (by no means RT safe)
65
66 * MIDI driver:
67 - fixed legacy sysex code which caused dispatching of MIDI SysEx
68 messages several times instead of once
69
70 * general changes:
71 - support for muting sampler channels and solo mode of the same, two new
72 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
73 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
74 introduced for this, the behavior is the same like on a mixer console
75 (patch by Grigor Iliev, a bit adjusted). Also added configure option
76 --enable-process-muted-channels which can be used to enable the
77 processing of muted channels.
78 - support for sostenuto pedal
79 - support for monitoring the total number of active voices
80 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
81 SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
82 - fixed some memory management errors
83 - fixed some concurrency problems that could lead to crashes when
84 LSCP commands were executed
85
86 Version 0.3.3 (15 July 2005)
87
88 * packaging changes:
89 - fixed compilation with gcc 4.0
90
91 * Gigasampler format engine:
92 - LFO preprocessing was performed even though the respective LFO was
93 disabled by the instrument patch (minor efficiency fix)
94 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
95 for volume ramp downs in the same fragment (needed for current voice
96 stealing implementation) then simply inform the user with a warning
97 about possible click sounds and reduce the volume ramp down
98 appropriately instead of cancelling the audio device connection
99
100 Version 0.3.2 (24 June 2005)
101
102 * packaging changes:
103 - updated autotools build files to compile on OS X
104 (conditional compilation of CoreMIDI and MidiShare drivers)
105 - hand-crafted assembly optimization code can be disabled with
106 './configure --disable-asm' (definitely not recommended)
107 - fixed 'make dist' rule to include all necessary files
108 - require automake (>= 1.5) for 'make -f Makefile.cvs'
109 (due to 'dist-bzip2' automake option)
110
111 * Gigasampler format engine:
112 - support for the gig parameters for "release velocity response" curves
113 - fine tuning of the EGADSR envelope
114 - volume of release triggered samples now depends on note-on velocity,
115 note length and gig parameter "release trigger decay" instead of
116 note-off velocity.
117 - revised voice stealing
118 (fixes crash and endless loop caused by voice stealing)
119 - don't reset scale tuning on instrument or audio output device change
120 - handle key group conflicts right at the beginning of each fragment
121 instead of when the respective voice is actually launched
122 (fixes undefined behavior if stolen voices belonged to a key group -
123 this case was followed by a "killed voice survived" error message)
124 - fixed minor issue with null/silence samples
125 (those stole voices even though they don't need a voice at all which
126 resulted in "voice stealing didn't work out" messages)
127 - don't reset volume, pan, pitch and MIDI controller values on
128 instrument or audio output device change
129
130 * LSCP server:
131 - fixed some crashes (patch by Grigor Iliev, fixes #19)
132 - fixed LSCP event "CHANNEL_INFO" notification
133 (e.g. did not notify on volume changes or MIDI program change events)
134
135 * linuxsampler application:
136 - added command line parameters --lscp-addr and --lscp-port to override
137 default IP address and port of LSCP server
138
139 Version 0.3.1 (24 May 2005)
140
141 * initial release

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