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Contents of /linuxsampler/trunk/ChangeLog

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Revision 922 - (show annotations) (download)
Mon Oct 2 18:40:10 2006 UTC (13 years, 2 months ago) by persson
File size: 8084 byte(s)
* small fix of LFO1 behaviour (dampening from max volume instead of
  amplifying from 0)
* added checks for bad MIDI data

1 Version CVS HEAD (?)
2
3 * packaging changes:
4 - changed deprecated copyright attribute to license; added ldconfig
5 to post-(un)install steps; added devel package for liblinuxsampler;
6 to linuxsampler.spec (RPM)
7 - install necessary development header files for allowing 3rd party
8 applications to link against liblinuxsampler
9 - liblinuxsampler's API documentation can be generated with 'make docs'
10 (Doxygen required)
11 - added benchmark to automatically detect the best triangle LFO
12 implementation (currently either an integer math solution or a
13 di-harmonic approximation), automatic detection can be overriden
14 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
15 configure script argument though (mandatory for cross-compilation)
16 - do not automatically pick optimized gcc flags if the user already
17 provided some on his own (as CXXFLAGS)
18 - added compile time option to disable processing of All-Notes-Off MIDI
19 messages
20 - added compile time options to allow disabling the various audio and
21 MIDI drivers
22 - fixed automatic GCC CPU switch detection on PPC
23 (patch by Ebrahim Mayat)
24
25 * Gigasampler format engine:
26 - extensive synthesis optimization
27 (reimplementation of EGs and LFO(s), removed synthesis parameter
28 prerendering and the synthesis parameter matrix in general, splitting
29 each audio fragment into subfragments now where each subfragment uses
30 constant pitch and filter coefficients. The volume coefficient is
31 linearly interpolated inside a subfragment, unless
32 --disable-interpolate-volume is set.)
33 - fine tuning of the EG modulation parameters
34 - improved filter cutoff calculation by adding support for the
35 following gig parameters: Cutoff freq (used when no cutoff
36 controller is defined), Control invert, Minimum cutoff, Velocity
37 curve and Velocity range. The keyboard tracking now scales
38 cutoff frequency instead of resonance.
39 - added support for gig parameter Resonance.
40 - fixed bug in sysex handling (patch by Juan Linietsky)
41 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
42 which can be overridden with --enable-global-attenuation
43 - EG fixes: made the length of "attack hold" stage more
44 accurate. Release stage can now start before attack stage
45 ends. Cancel release didn't work when sustain was zero. Attack
46 time now has a minimal value to prevent clicks.
47 - fixed pitch changes larger than one octave
48 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
49 - implemented portamento mode and solo mode (a.k.a 'mono mode'):
50 all modes can be altered via standard GM messages, that is CC5 for
51 altering portamento time, CC65 for enabling / disabling portamento
52 mode, CC126 for enabling solo mode and CC127 for disabling solo mode
53 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
54 parameter) and crossfade
55 - added support for the "attenuation controller threshold" gig
56 parameter
57 - added smoothing of volume changes caused by control change
58 messages
59 - sample loop parameters are now taken from the DimensionRegion
60 instead of the wave chunk
61 - fixed keyswitching for v3 gigs with a number of keyswitch splits
62 not equal to a power of two
63 - reimplementation of the filter algorithm. The new filter is more
64 accurate and supports all gig filter types, including bandreject
65 and lowpass turbo.
66 - real support for 24 bit samples - samples are not truncated to
67 16 bits anymore
68 - support for aftertouch (channel pressure, not polyphonic
69 aftertouch)
70 - LFO1 behaviour fixed (dampening from max volume instead of
71 amplifying from 0)
72
73 * LSCP server:
74 - fixed application exit on broken pipe error (fixes bug #20)
75 - fixed the notification messages delay due to lack of
76 network activity (fixes bug #26)
77 - fixed parser bug which occured on space(s) within device parameters
78 (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
79
80 * audio driver:
81 - added aRts audio output driver (by no means RT safe)
82
83 * MIDI driver:
84 - fixed legacy sysex code which caused dispatching of MIDI SysEx
85 messages several times instead of once
86 - API extension for MIDI drivers which already supply exact time stamps
87 for events (i.e. for offline rendering based MIDI drivers)
88 - added checks for bad MIDI data
89
90 * linuxsampler application:
91 - show available sampler engine types on startup
92
93 * general changes:
94 - support for muting sampler channels and solo mode of the same, two new
95 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
96 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
97 introduced for this, the behavior is the same like on a mixer console
98 (patch by Grigor Iliev, a bit adjusted). Also added configure option
99 --enable-process-muted-channels which can be used to enable the
100 processing of muted channels.
101 - support for sostenuto pedal
102 - support for monitoring the total number of active voices
103 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
104 SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
105 - fixed some memory management errors
106 - fixed some concurrency problems that could lead to crashes when
107 LSCP commands were executed
108
109 Version 0.3.3 (15 July 2005)
110
111 * packaging changes:
112 - fixed compilation with gcc 4.0
113
114 * Gigasampler format engine:
115 - LFO preprocessing was performed even though the respective LFO was
116 disabled by the instrument patch (minor efficiency fix)
117 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
118 for volume ramp downs in the same fragment (needed for current voice
119 stealing implementation) then simply inform the user with a warning
120 about possible click sounds and reduce the volume ramp down
121 appropriately instead of cancelling the audio device connection
122
123 Version 0.3.2 (24 June 2005)
124
125 * packaging changes:
126 - updated autotools build files to compile on OS X
127 (conditional compilation of CoreMIDI and MidiShare drivers)
128 - hand-crafted assembly optimization code can be disabled with
129 './configure --disable-asm' (definitely not recommended)
130 - fixed 'make dist' rule to include all necessary files
131 - require automake (>= 1.5) for 'make -f Makefile.cvs'
132 (due to 'dist-bzip2' automake option)
133
134 * Gigasampler format engine:
135 - support for the gig parameters for "release velocity response" curves
136 - fine tuning of the EGADSR envelope
137 - volume of release triggered samples now depends on note-on velocity,
138 note length and gig parameter "release trigger decay" instead of
139 note-off velocity.
140 - revised voice stealing
141 (fixes crash and endless loop caused by voice stealing)
142 - don't reset scale tuning on instrument or audio output device change
143 - handle key group conflicts right at the beginning of each fragment
144 instead of when the respective voice is actually launched
145 (fixes undefined behavior if stolen voices belonged to a key group -
146 this case was followed by a "killed voice survived" error message)
147 - fixed minor issue with null/silence samples
148 (those stole voices even though they don't need a voice at all which
149 resulted in "voice stealing didn't work out" messages)
150 - don't reset volume, pan, pitch and MIDI controller values on
151 instrument or audio output device change
152
153 * LSCP server:
154 - fixed some crashes (patch by Grigor Iliev, fixes #19)
155 - fixed LSCP event "CHANNEL_INFO" notification
156 (e.g. did not notify on volume changes or MIDI program change events)
157
158 * linuxsampler application:
159 - added command line parameters --lscp-addr and --lscp-port to override
160 default IP address and port of LSCP server
161
162 Version 0.3.1 (24 May 2005)
163
164 * initial release

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