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Revision 1049 - (show annotations) (download)
Wed Feb 28 06:53:42 2007 UTC (17 years, 1 month ago) by schoenebeck
File size: 11145 byte(s)
* the ALSA audio output driver parameters now reflect the correct
  parameter value ranges for the respective selected sound card
  (patch by Till Wimmer, a bit fixed and extended)
* bumped version to 0.4.0.4cvs

1 Version CVS HEAD (?)
2
3 * general changes:
4 - replaced the old, confusing MIDI program change mechanism by a
5 flexible MIDI instrument mapper which allows to map arbitrary
6 (MIDI bank, MIDI program) pairs with arbitrary
7 (engine type, instrument file, file index) triplets which will be
8 loaded on the respective channel when such MIDI program change
9 messages arrive, beside that, each entry allows to define a life-time
10 strategy for the instrument, so the user can define whether the
11 instrument should i.e. be permanently loaded (to be able to switch
12 quickly among sounds) or i.e. loaded just on demand when the
13 respective program change arrives (to safe RAM space), as well as a
14 global volume factor for each entry, so the user can adjust the volume
15 dynamic of his mapped instrument collection without having to modify
16 the instrument files, also one can manage arbitrary amount of such
17 MIDI instrument maps and assign each sampler channel individually
18 a certain map, so that i.e. separation of normal instruments and
19 drumkits is possible
20 - new notification events for tracking audio/MIDI device changes,
21 MIDI instrument map changes and MIDI instrument changes
22 - sampler was limited to load max. 200 instruments in the background
23 due to a constant size RingBuffer FIFO which is now replaced by a
24 dynamic (unlimited) size std::list FIFO
25 - added FX sends, these allow to route audio signals to arbitrary audio
26 output channels for being processed by external effect processors
27 (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
28 controllers
29 - global (sampler wide) volume can now be controlled at runtime
30
31 * MIDI driver:
32 - dispatch bank select (MSB and LSB) messages
33
34 * audio driver:
35 - the ALSA audio output driver parameters now reflect the correct
36 parameter value ranges for the respective selected sound card
37 (patch by Till Wimmer, a bit fixed and extended)
38
39 * Gigasampler format engine:
40 - if a filter is used and EG2 finishes before EG1, let the voice
41 die when EG2 has finished (this fixes a problem with clicks and
42 voice starvation for some gigs)
43 - playback is no longer disabled during instrument loading
44 - all notes playing on a channel that changes its instrument keep
45 playing with the old instrument until they get a note off
46 command
47 - EG fix: a release value of zero could cause noises or crash
48 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
49 - EG fine tuning: when attack is zero the EG starts at a level
50 above max sustain level, which means that there is a decay phase
51 even if sustain is 100%
52
53 * Bug fixes:
54 - fixed crash occurring on certain LSCP scripts (Bug 39)
55 - another thread safety fix for lscp "load engine" and "set
56 channel audio output device"
57
58 Version 0.4.0 (24 November 2006)
59
60 * packaging changes:
61 - changed deprecated copyright attribute to license; added ldconfig
62 to post-(un)install steps; added devel package for liblinuxsampler;
63 to linuxsampler.spec (RPM)
64 - install necessary development header files for allowing 3rd party
65 applications to link against liblinuxsampler
66 - liblinuxsampler's API documentation can be generated with 'make docs'
67 (Doxygen required)
68 - added benchmark to automatically detect the best triangle LFO
69 implementation (currently either an integer math solution or a
70 di-harmonic approximation), automatic detection can be overriden
71 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
72 configure script argument though (mandatory for cross-compilation)
73 - do not automatically pick optimized gcc flags if the user already
74 provided some on his own (as CXXFLAGS)
75 - added compile time option to disable processing of All-Notes-Off MIDI
76 messages
77 - added compile time options to allow disabling the various audio and
78 MIDI drivers
79 - fixed automatic GCC CPU switch detection on PPC
80 (patch by Ebrahim Mayat)
81
82 * Gigasampler format engine:
83 - extensive synthesis optimization
84 (reimplementation of EGs and LFO(s), removed synthesis parameter
85 prerendering and the synthesis parameter matrix in general, splitting
86 each audio fragment into subfragments now where each subfragment uses
87 constant pitch and filter coefficients. The volume coefficient is
88 linearly interpolated inside a subfragment, unless
89 --disable-interpolate-volume is set.)
90 - fine tuning of the EG modulation parameters
91 - improved filter cutoff calculation by adding support for the
92 following gig parameters: Cutoff freq (used when no cutoff
93 controller is defined), Control invert, Minimum cutoff, Velocity
94 curve and Velocity range. The keyboard tracking now scales
95 cutoff frequency instead of resonance.
96 - added support for gig parameter Resonance.
97 - fixed bug in sysex handling (patch by Juan Linietsky)
98 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
99 which can be overridden with --enable-global-attenuation
100 - EG fixes: made the length of "attack hold" stage more
101 accurate. Release stage can now start before attack stage
102 ends. Cancel release didn't work when sustain was zero. Attack
103 time now has a minimal value to prevent clicks.
104 - fixed pitch changes larger than one octave
105 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
106 - implemented portamento mode and solo mode (a.k.a 'mono mode'):
107 all modes can be altered via standard GM messages, that is CC5 for
108 altering portamento time, CC65 for enabling / disabling portamento
109 mode, CC126 for enabling solo mode and CC127 for disabling solo mode
110 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
111 parameter) and crossfade
112 - added support for the "attenuation controller threshold" gig
113 parameter
114 - added smoothing of volume changes caused by control change
115 messages
116 - sample loop parameters are now taken from the DimensionRegion
117 instead of the wave chunk
118 - fixed keyswitching for v3 gigs with a number of keyswitch splits
119 not equal to a power of two
120 - reimplementation of the filter algorithm. The new filter is more
121 accurate and supports all gig filter types, including bandreject
122 and lowpass turbo.
123 - real support for 24 bit samples - samples are not truncated to
124 16 bits anymore
125 - support for aftertouch (channel pressure, not polyphonic
126 aftertouch)
127 - LFO1 behaviour fixed (dampening from max volume instead of
128 amplifying from 0)
129
130 * LSCP server:
131 - fixed application exit on broken pipe error (fixes bug #20)
132 - fixed the notification messages delay due to lack of
133 network activity (fixes bug #26)
134 - fixed parser bug which occured on space(s) within device parameters
135 (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
136
137 * audio driver:
138 - added aRts audio output driver (by no means RT safe)
139
140 * MIDI driver:
141 - fixed legacy sysex code which caused dispatching of MIDI SysEx
142 messages several times instead of once
143 - API extension for MIDI drivers which already supply exact time stamps
144 for events (i.e. for offline rendering based MIDI drivers)
145 - added checks for bad MIDI data
146
147 * linuxsampler application:
148 - show available sampler engine types on startup
149
150 * general changes:
151 - support for muting sampler channels and solo mode of the same, two new
152 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
153 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
154 introduced for this, the behavior is the same like on a mixer console
155 (patch by Grigor Iliev, a bit adjusted). Also added configure option
156 --enable-process-muted-channels which can be used to enable the
157 processing of muted channels.
158 - support for sostenuto pedal
159 - support for monitoring the total number of active voices
160 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
161 SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
162 - fixed some memory management errors
163 - fixed some concurrency problems that could lead to crashes when
164 LSCP commands were executed
165 - fixed crash when instrument loading failed previously on the same
166 sampler channel (fixes bug #36)
167
168 Version 0.3.3 (15 July 2005)
169
170 * packaging changes:
171 - fixed compilation with gcc 4.0
172
173 * Gigasampler format engine:
174 - LFO preprocessing was performed even though the respective LFO was
175 disabled by the instrument patch (minor efficiency fix)
176 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
177 for volume ramp downs in the same fragment (needed for current voice
178 stealing implementation) then simply inform the user with a warning
179 about possible click sounds and reduce the volume ramp down
180 appropriately instead of cancelling the audio device connection
181
182 Version 0.3.2 (24 June 2005)
183
184 * packaging changes:
185 - updated autotools build files to compile on OS X
186 (conditional compilation of CoreMIDI and MidiShare drivers)
187 - hand-crafted assembly optimization code can be disabled with
188 './configure --disable-asm' (definitely not recommended)
189 - fixed 'make dist' rule to include all necessary files
190 - require automake (>= 1.5) for 'make -f Makefile.cvs'
191 (due to 'dist-bzip2' automake option)
192
193 * Gigasampler format engine:
194 - support for the gig parameters for "release velocity response" curves
195 - fine tuning of the EGADSR envelope
196 - volume of release triggered samples now depends on note-on velocity,
197 note length and gig parameter "release trigger decay" instead of
198 note-off velocity.
199 - revised voice stealing
200 (fixes crash and endless loop caused by voice stealing)
201 - don't reset scale tuning on instrument or audio output device change
202 - handle key group conflicts right at the beginning of each fragment
203 instead of when the respective voice is actually launched
204 (fixes undefined behavior if stolen voices belonged to a key group -
205 this case was followed by a "killed voice survived" error message)
206 - fixed minor issue with null/silence samples
207 (those stole voices even though they don't need a voice at all which
208 resulted in "voice stealing didn't work out" messages)
209 - don't reset volume, pan, pitch and MIDI controller values on
210 instrument or audio output device change
211
212 * LSCP server:
213 - fixed some crashes (patch by Grigor Iliev, fixes #19)
214 - fixed LSCP event "CHANNEL_INFO" notification
215 (e.g. did not notify on volume changes or MIDI program change events)
216
217 * linuxsampler application:
218 - added command line parameters --lscp-addr and --lscp-port to override
219 default IP address and port of LSCP server
220
221 Version 0.3.1 (24 May 2005)
222
223 * initial release

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