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Revision 1005 - (hide annotations) (download)
Fri Dec 29 20:06:14 2006 UTC (12 years, 11 months ago) by schoenebeck
File size: 10323 byte(s)
* global volume can now be altered at runtime
  (added two new LSCP commands for this, LSCP specs updated)

1 schoenebeck 947 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 schoenebeck 973 (MIDI bank, MIDI program) pairs with arbitrary
7 schoenebeck 947 (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 schoenebeck 973 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 iliev 981 - new notification events for tracking audio/MIDI device changes,
21     MIDI instrument map changes and MIDI instrument changes
22 schoenebeck 990 - 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 schoenebeck 1001 - 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 schoenebeck 1005 - global (sampler wide) volume can now be controlled at runtime
30 schoenebeck 947
31     * MIDI driver:
32     - dispatch bank select (MSB and LSB) messages
33    
34 persson 951 * Gigasampler format engine:
35     - if a filter is used and EG2 finishes before EG1, let the voice
36     die when EG2 has finished (this fixes a problem with clicks and
37     voice starvation for some gigs)
38    
39 iliev 959 * Bug fixes:
40     - fixed crash occurring on certain LSCP scripts (Bug 39)
41    
42 schoenebeck 937 Version 0.4.0 (24 November 2006)
43 persson 696
44 schoenebeck 697 * packaging changes:
45 capela 868 - changed deprecated copyright attribute to license; added ldconfig
46     to post-(un)install steps; added devel package for liblinuxsampler;
47     to linuxsampler.spec (RPM)
48 schoenebeck 697 - install necessary development header files for allowing 3rd party
49     applications to link against liblinuxsampler
50     - liblinuxsampler's API documentation can be generated with 'make docs'
51     (Doxygen required)
52 schoenebeck 715 - added benchmark to automatically detect the best triangle LFO
53     implementation (currently either an integer math solution or a
54     di-harmonic approximation), automatic detection can be overriden
55     with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
56     configure script argument though (mandatory for cross-compilation)
57 schoenebeck 829 - do not automatically pick optimized gcc flags if the user already
58     provided some on his own (as CXXFLAGS)
59 schoenebeck 849 - added compile time option to disable processing of All-Notes-Off MIDI
60     messages
61 schoenebeck 852 - added compile time options to allow disabling the various audio and
62     MIDI drivers
63 schoenebeck 909 - fixed automatic GCC CPU switch detection on PPC
64     (patch by Ebrahim Mayat)
65 schoenebeck 697
66 persson 696 * Gigasampler format engine:
67 schoenebeck 738 - extensive synthesis optimization
68     (reimplementation of EGs and LFO(s), removed synthesis parameter
69     prerendering and the synthesis parameter matrix in general, splitting
70     each audio fragment into subfragments now where each subfragment uses
71 persson 830 constant pitch and filter coefficients. The volume coefficient is
72     linearly interpolated inside a subfragment, unless
73     --disable-interpolate-volume is set.)
74 persson 696 - fine tuning of the EG modulation parameters
75 persson 729 - improved filter cutoff calculation by adding support for the
76     following gig parameters: Cutoff freq (used when no cutoff
77     controller is defined), Control invert, Minimum cutoff, Velocity
78 persson 791 curve and Velocity range. The keyboard tracking now scales
79     cutoff frequency instead of resonance.
80 persson 877 - added support for gig parameter Resonance.
81 schoenebeck 775 - fixed bug in sysex handling (patch by Juan Linietsky)
82 schoenebeck 781 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
83     which can be overridden with --enable-global-attenuation
84 persson 783 - EG fixes: made the length of "attack hold" stage more
85     accurate. Release stage can now start before attack stage
86 persson 797 ends. Cancel release didn't work when sustain was zero. Attack
87     time now has a minimal value to prevent clicks.
88 persson 799 - fixed pitch changes larger than one octave
89 schoenebeck 829 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
90     - implemented portamento mode and solo mode (a.k.a 'mono mode'):
91     all modes can be altered via standard GM messages, that is CC5 for
92     altering portamento time, CC65 for enabling / disabling portamento
93     mode, CC126 for enabling solo mode and CC127 for disabling solo mode
94 persson 832 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
95     parameter) and crossfade
96 persson 831 - added support for the "attenuation controller threshold" gig
97     parameter
98 persson 832 - added smoothing of volume changes caused by control change
99     messages
100 persson 865 - sample loop parameters are now taken from the DimensionRegion
101     instead of the wave chunk
102     - fixed keyswitching for v3 gigs with a number of keyswitch splits
103     not equal to a power of two
104 persson 877 - reimplementation of the filter algorithm. The new filter is more
105     accurate and supports all gig filter types, including bandreject
106     and lowpass turbo.
107 persson 903 - real support for 24 bit samples - samples are not truncated to
108     16 bits anymore
109     - support for aftertouch (channel pressure, not polyphonic
110     aftertouch)
111 persson 922 - LFO1 behaviour fixed (dampening from max volume instead of
112     amplifying from 0)
113 persson 696
114 schoenebeck 711 * LSCP server:
115     - fixed application exit on broken pipe error (fixes bug #20)
116 iliev 793 - fixed the notification messages delay due to lack of
117     network activity (fixes bug #26)
118 schoenebeck 826 - fixed parser bug which occured on space(s) within device parameters
119     (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
120 schoenebeck 711
121 schoenebeck 838 * audio driver:
122     - added aRts audio output driver (by no means RT safe)
123    
124 schoenebeck 775 * MIDI driver:
125     - fixed legacy sysex code which caused dispatching of MIDI SysEx
126     messages several times instead of once
127 schoenebeck 906 - API extension for MIDI drivers which already supply exact time stamps
128     for events (i.e. for offline rendering based MIDI drivers)
129 persson 922 - added checks for bad MIDI data
130 schoenebeck 775
131 schoenebeck 900 * linuxsampler application:
132     - show available sampler engine types on startup
133    
134 schoenebeck 705 * general changes:
135     - support for muting sampler channels and solo mode of the same, two new
136     LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
137     fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
138     introduced for this, the behavior is the same like on a mixer console
139 iliev 716 (patch by Grigor Iliev, a bit adjusted). Also added configure option
140     --enable-process-muted-channels which can be used to enable the
141     processing of muted channels.
142 iliev 777 - support for sostenuto pedal
143 iliev 779 - support for monitoring the total number of active voices
144 iliev 778 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
145     SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
146 persson 835 - fixed some memory management errors
147 persson 841 - fixed some concurrency problems that could lead to crashes when
148     LSCP commands were executed
149 schoenebeck 925 - fixed crash when instrument loading failed previously on the same
150     sampler channel (fixes bug #36)
151 schoenebeck 705
152 schoenebeck 692 Version 0.3.3 (15 July 2005)
153 schoenebeck 686
154     * packaging changes:
155     - fixed compilation with gcc 4.0
156    
157 schoenebeck 687 * Gigasampler format engine:
158     - LFO preprocessing was performed even though the respective LFO was
159     disabled by the instrument patch (minor efficiency fix)
160 schoenebeck 688 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
161     for volume ramp downs in the same fragment (needed for current voice
162     stealing implementation) then simply inform the user with a warning
163     about possible click sounds and reduce the volume ramp down
164     appropriately instead of cancelling the audio device connection
165 schoenebeck 687
166 schoenebeck 677 Version 0.3.2 (24 June 2005)
167 schoenebeck 609
168     * packaging changes:
169     - updated autotools build files to compile on OS X
170     (conditional compilation of CoreMIDI and MidiShare drivers)
171 schoenebeck 617 - hand-crafted assembly optimization code can be disabled with
172     './configure --disable-asm' (definitely not recommended)
173 schoenebeck 654 - fixed 'make dist' rule to include all necessary files
174     - require automake (>= 1.5) for 'make -f Makefile.cvs'
175     (due to 'dist-bzip2' automake option)
176 schoenebeck 649
177     * Gigasampler format engine:
178     - support for the gig parameters for "release velocity response" curves
179     - fine tuning of the EGADSR envelope
180     - volume of release triggered samples now depends on note-on velocity,
181     note length and gig parameter "release trigger decay" instead of
182     note-off velocity.
183 schoenebeck 663 - revised voice stealing
184     (fixes crash and endless loop caused by voice stealing)
185 schoenebeck 659 - don't reset scale tuning on instrument or audio output device change
186 schoenebeck 668 - handle key group conflicts right at the beginning of each fragment
187     instead of when the respective voice is actually launched
188     (fixes undefined behavior if stolen voices belonged to a key group -
189     this case was followed by a "killed voice survived" error message)
190 schoenebeck 669 - fixed minor issue with null/silence samples
191     (those stole voices even though they don't need a voice at all which
192     resulted in "voice stealing didn't work out" messages)
193 schoenebeck 670 - don't reset volume, pan, pitch and MIDI controller values on
194     instrument or audio output device change
195 schoenebeck 654
196 schoenebeck 620 * LSCP server:
197 schoenebeck 654 - fixed some crashes (patch by Grigor Iliev, fixes #19)
198 schoenebeck 660 - fixed LSCP event "CHANNEL_INFO" notification
199 schoenebeck 670 (e.g. did not notify on volume changes or MIDI program change events)
200 schoenebeck 609
201 schoenebeck 668 * linuxsampler application:
202     - added command line parameters --lscp-addr and --lscp-port to override
203     default IP address and port of LSCP server
204    
205 schoenebeck 579 Version 0.3.1 (24 May 2005)
206    
207     * initial release

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