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Contents of /linuxsampler/trunk/ChangeLog

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Revision 852 - (show annotations) (download)
Fri Apr 14 19:13:32 2006 UTC (14 years, 5 months ago) by schoenebeck
File size: 7112 byte(s)
* added compile time options to allow disabling the various audio and MIDI
  drivers (./configure --disable-foo-driver)

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
58 * LSCP server:
59 - fixed application exit on broken pipe error (fixes bug #20)
60 - fixed the notification messages delay due to lack of
61 network activity (fixes bug #26)
62 - fixed parser bug which occured on space(s) within device parameters
65 * audio driver:
66 - added aRts audio output driver (by no means RT safe)
68 * MIDI driver:
69 - fixed legacy sysex code which caused dispatching of MIDI SysEx
70 messages several times instead of once
72 * general changes:
73 - support for muting sampler channels and solo mode of the same, two new
74 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
75 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
76 introduced for this, the behavior is the same like on a mixer console
77 (patch by Grigor Iliev, a bit adjusted). Also added configure option
78 --enable-process-muted-channels which can be used to enable the
79 processing of muted channels.
80 - support for sostenuto pedal
81 - support for monitoring the total number of active voices
84 - fixed some memory management errors
85 - fixed some concurrency problems that could lead to crashes when
86 LSCP commands were executed
88 Version 0.3.3 (15 July 2005)
90 * packaging changes:
91 - fixed compilation with gcc 4.0
93 * Gigasampler format engine:
94 - LFO preprocessing was performed even though the respective LFO was
95 disabled by the instrument patch (minor efficiency fix)
96 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
97 for volume ramp downs in the same fragment (needed for current voice
98 stealing implementation) then simply inform the user with a warning
99 about possible click sounds and reduce the volume ramp down
100 appropriately instead of cancelling the audio device connection
102 Version 0.3.2 (24 June 2005)
104 * packaging changes:
105 - updated autotools build files to compile on OS X
106 (conditional compilation of CoreMIDI and MidiShare drivers)
107 - hand-crafted assembly optimization code can be disabled with
108 './configure --disable-asm' (definitely not recommended)
109 - fixed 'make dist' rule to include all necessary files
110 - require automake (>= 1.5) for 'make -f Makefile.cvs'
111 (due to 'dist-bzip2' automake option)
113 * Gigasampler format engine:
114 - support for the gig parameters for "release velocity response" curves
115 - fine tuning of the EGADSR envelope
116 - volume of release triggered samples now depends on note-on velocity,
117 note length and gig parameter "release trigger decay" instead of
118 note-off velocity.
119 - revised voice stealing
120 (fixes crash and endless loop caused by voice stealing)
121 - don't reset scale tuning on instrument or audio output device change
122 - handle key group conflicts right at the beginning of each fragment
123 instead of when the respective voice is actually launched
124 (fixes undefined behavior if stolen voices belonged to a key group -
125 this case was followed by a "killed voice survived" error message)
126 - fixed minor issue with null/silence samples
127 (those stole voices even though they don't need a voice at all which
128 resulted in "voice stealing didn't work out" messages)
129 - don't reset volume, pan, pitch and MIDI controller values on
130 instrument or audio output device change
132 * LSCP server:
133 - fixed some crashes (patch by Grigor Iliev, fixes #19)
134 - fixed LSCP event "CHANNEL_INFO" notification
135 (e.g. did not notify on volume changes or MIDI program change events)
137 * linuxsampler application:
138 - added command line parameters --lscp-addr and --lscp-port to override
139 default IP address and port of LSCP server
141 Version 0.3.1 (24 May 2005)
143 * initial release

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