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Contents of /linuxsampler/trunk/ChangeLog

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Revision 865 - (show annotations) (download)
Sun May 14 07:15:52 2006 UTC (14 years, 4 months ago) by persson
File size: 7317 byte(s)
* sample loop parameters are now taken from the DimensionRegion
  instead of the wave chunk
* fixed keyswitching for v3 gigs with a number of keyswitch splits not
  equal to a power of two

1 Version CVS HEAD (?)
3 * packaging changes:
4 - install necessary development header files for allowing 3rd party
5 applications to link against liblinuxsampler
6 - liblinuxsampler's API documentation can be generated with 'make docs'
7 (Doxygen required)
8 - added benchmark to automatically detect the best triangle LFO
9 implementation (currently either an integer math solution or a
10 di-harmonic approximation), automatic detection can be overriden
11 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
12 configure script argument though (mandatory for cross-compilation)
13 - do not automatically pick optimized gcc flags if the user already
14 provided some on his own (as CXXFLAGS)
15 - added compile time option to disable processing of All-Notes-Off MIDI
16 messages
17 - added compile time options to allow disabling the various audio and
18 MIDI drivers
20 * Gigasampler format engine:
21 - extensive synthesis optimization
22 (reimplementation of EGs and LFO(s), removed synthesis parameter
23 prerendering and the synthesis parameter matrix in general, splitting
24 each audio fragment into subfragments now where each subfragment uses
25 constant pitch and filter coefficients. The volume coefficient is
26 linearly interpolated inside a subfragment, unless
27 --disable-interpolate-volume is set.)
28 - fine tuning of the EG modulation parameters
29 - improved filter cutoff calculation by adding support for the
30 following gig parameters: Cutoff freq (used when no cutoff
31 controller is defined), Control invert, Minimum cutoff, Velocity
32 curve and Velocity range. The keyboard tracking now scales
33 cutoff frequency instead of resonance.
34 - filter fine tuning: calculation of cutoff frequency and
35 bandwidth improved. Removed use of "BasicBPFilter". Changed
36 bandpass filter from constant peak to constant skirt. Added
37 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
62 * LSCP server:
63 - fixed application exit on broken pipe error (fixes bug #20)
64 - fixed the notification messages delay due to lack of
65 network activity (fixes bug #26)
66 - fixed parser bug which occured on space(s) within device parameters
69 * audio driver:
70 - added aRts audio output driver (by no means RT safe)
72 * MIDI driver:
73 - fixed legacy sysex code which caused dispatching of MIDI SysEx
74 messages several times instead of once
76 * general changes:
77 - support for muting sampler channels and solo mode of the same, two new
78 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
79 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
80 introduced for this, the behavior is the same like on a mixer console
81 (patch by Grigor Iliev, a bit adjusted). Also added configure option
82 --enable-process-muted-channels which can be used to enable the
83 processing of muted channels.
84 - support for sostenuto pedal
85 - support for monitoring the total number of active voices
88 - fixed some memory management errors
89 - fixed some concurrency problems that could lead to crashes when
90 LSCP commands were executed
92 Version 0.3.3 (15 July 2005)
94 * packaging changes:
95 - fixed compilation with gcc 4.0
97 * Gigasampler format engine:
98 - LFO preprocessing was performed even though the respective LFO was
99 disabled by the instrument patch (minor efficiency fix)
100 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
101 for volume ramp downs in the same fragment (needed for current voice
102 stealing implementation) then simply inform the user with a warning
103 about possible click sounds and reduce the volume ramp down
104 appropriately instead of cancelling the audio device connection
106 Version 0.3.2 (24 June 2005)
108 * packaging changes:
109 - updated autotools build files to compile on OS X
110 (conditional compilation of CoreMIDI and MidiShare drivers)
111 - hand-crafted assembly optimization code can be disabled with
112 './configure --disable-asm' (definitely not recommended)
113 - fixed 'make dist' rule to include all necessary files
114 - require automake (>= 1.5) for 'make -f Makefile.cvs'
115 (due to 'dist-bzip2' automake option)
117 * Gigasampler format engine:
118 - support for the gig parameters for "release velocity response" curves
119 - fine tuning of the EGADSR envelope
120 - volume of release triggered samples now depends on note-on velocity,
121 note length and gig parameter "release trigger decay" instead of
122 note-off velocity.
123 - revised voice stealing
124 (fixes crash and endless loop caused by voice stealing)
125 - don't reset scale tuning on instrument or audio output device change
126 - handle key group conflicts right at the beginning of each fragment
127 instead of when the respective voice is actually launched
128 (fixes undefined behavior if stolen voices belonged to a key group -
129 this case was followed by a "killed voice survived" error message)
130 - fixed minor issue with null/silence samples
131 (those stole voices even though they don't need a voice at all which
132 resulted in "voice stealing didn't work out" messages)
133 - don't reset volume, pan, pitch and MIDI controller values on
134 instrument or audio output device change
136 * LSCP server:
137 - fixed some crashes (patch by Grigor Iliev, fixes #19)
138 - fixed LSCP event "CHANNEL_INFO" notification
139 (e.g. did not notify on volume changes or MIDI program change events)
141 * linuxsampler application:
142 - added command line parameters --lscp-addr and --lscp-port to override
143 default IP address and port of LSCP server
145 Version 0.3.1 (24 May 2005)
147 * initial release

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