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Revision 1049 - (hide 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 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 schoenebeck 1049 * 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 persson 951 * 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 persson 1038 - 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 persson 1039 - EG fix: a release value of zero could cause noises or crash
48 schoenebeck 1041 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
49 persson 1046 - 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 persson 951
53 iliev 959 * Bug fixes:
54     - fixed crash occurring on certain LSCP scripts (Bug 39)
55 persson 1038 - another thread safety fix for lscp "load engine" and "set
56     channel audio output device"
57 iliev 959
58 schoenebeck 937 Version 0.4.0 (24 November 2006)
59 persson 696
60 schoenebeck 697 * packaging changes:
61 capela 868 - 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 schoenebeck 697 - 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 schoenebeck 715 - 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 schoenebeck 829 - do not automatically pick optimized gcc flags if the user already
74     provided some on his own (as CXXFLAGS)
75 schoenebeck 849 - added compile time option to disable processing of All-Notes-Off MIDI
76     messages
77 schoenebeck 852 - added compile time options to allow disabling the various audio and
78     MIDI drivers
79 schoenebeck 909 - fixed automatic GCC CPU switch detection on PPC
80     (patch by Ebrahim Mayat)
81 schoenebeck 697
82 persson 696 * Gigasampler format engine:
83 schoenebeck 738 - 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 persson 830 constant pitch and filter coefficients. The volume coefficient is
88     linearly interpolated inside a subfragment, unless
89     --disable-interpolate-volume is set.)
90 persson 696 - fine tuning of the EG modulation parameters
91 persson 729 - 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 persson 791 curve and Velocity range. The keyboard tracking now scales
95     cutoff frequency instead of resonance.
96 persson 877 - added support for gig parameter Resonance.
97 schoenebeck 775 - fixed bug in sysex handling (patch by Juan Linietsky)
98 schoenebeck 781 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
99     which can be overridden with --enable-global-attenuation
100 persson 783 - EG fixes: made the length of "attack hold" stage more
101     accurate. Release stage can now start before attack stage
102 persson 797 ends. Cancel release didn't work when sustain was zero. Attack
103     time now has a minimal value to prevent clicks.
104 persson 799 - fixed pitch changes larger than one octave
105 schoenebeck 829 - 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 persson 832 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
111     parameter) and crossfade
112 persson 831 - added support for the "attenuation controller threshold" gig
113     parameter
114 persson 832 - added smoothing of volume changes caused by control change
115     messages
116 persson 865 - 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 persson 877 - 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 persson 903 - 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 persson 922 - LFO1 behaviour fixed (dampening from max volume instead of
128     amplifying from 0)
129 persson 696
130 schoenebeck 711 * LSCP server:
131     - fixed application exit on broken pipe error (fixes bug #20)
132 iliev 793 - fixed the notification messages delay due to lack of
133     network activity (fixes bug #26)
134 schoenebeck 826 - 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 schoenebeck 711
137 schoenebeck 838 * audio driver:
138     - added aRts audio output driver (by no means RT safe)
139    
140 schoenebeck 775 * MIDI driver:
141     - fixed legacy sysex code which caused dispatching of MIDI SysEx
142     messages several times instead of once
143 schoenebeck 906 - API extension for MIDI drivers which already supply exact time stamps
144     for events (i.e. for offline rendering based MIDI drivers)
145 persson 922 - added checks for bad MIDI data
146 schoenebeck 775
147 schoenebeck 900 * linuxsampler application:
148     - show available sampler engine types on startup
149    
150 schoenebeck 705 * 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 iliev 716 (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 iliev 777 - support for sostenuto pedal
159 iliev 779 - support for monitoring the total number of active voices
160 iliev 778 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
161     SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
162 persson 835 - fixed some memory management errors
163 persson 841 - fixed some concurrency problems that could lead to crashes when
164     LSCP commands were executed
165 schoenebeck 925 - fixed crash when instrument loading failed previously on the same
166     sampler channel (fixes bug #36)
167 schoenebeck 705
168 schoenebeck 692 Version 0.3.3 (15 July 2005)
169 schoenebeck 686
170     * packaging changes:
171     - fixed compilation with gcc 4.0
172    
173 schoenebeck 687 * Gigasampler format engine:
174     - LFO preprocessing was performed even though the respective LFO was
175     disabled by the instrument patch (minor efficiency fix)
176 schoenebeck 688 - 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 schoenebeck 687
182 schoenebeck 677 Version 0.3.2 (24 June 2005)
183 schoenebeck 609
184     * packaging changes:
185     - updated autotools build files to compile on OS X
186     (conditional compilation of CoreMIDI and MidiShare drivers)
187 schoenebeck 617 - hand-crafted assembly optimization code can be disabled with
188     './configure --disable-asm' (definitely not recommended)
189 schoenebeck 654 - 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 schoenebeck 649
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 schoenebeck 663 - revised voice stealing
200     (fixes crash and endless loop caused by voice stealing)
201 schoenebeck 659 - don't reset scale tuning on instrument or audio output device change
202 schoenebeck 668 - 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 schoenebeck 669 - 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 schoenebeck 670 - don't reset volume, pan, pitch and MIDI controller values on
210     instrument or audio output device change
211 schoenebeck 654
212 schoenebeck 620 * LSCP server:
213 schoenebeck 654 - fixed some crashes (patch by Grigor Iliev, fixes #19)
214 schoenebeck 660 - fixed LSCP event "CHANNEL_INFO" notification
215 schoenebeck 670 (e.g. did not notify on volume changes or MIDI program change events)
216 schoenebeck 609
217 schoenebeck 668 * 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 schoenebeck 579 Version 0.3.1 (24 May 2005)
222    
223     * initial release

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