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Contents of /linuxsampler/trunk/ChangeLog

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Revision 906 - (show annotations) (download)
Sun Jul 23 16:44:08 2006 UTC (13 years, 2 months ago) by schoenebeck
File size: 7872 byte(s)
* MIDI driver API extension for MIDI drivers which already supply exact
  time stamps for events (i.e. for offline rendering based MIDI drivers)

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

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