

V1.4:
65536 or 131072 samples calculation, filters up to 524288 taps
possible, adaption of all functions to allow 131072 samples with
automatic cor filter adjustment, history file also in workspace,
ini-file also in workspace (workspace actions). Handling
improvements: CutNWindow combobox, expert mode in menu File, Esc
key exits forms Parameter/Targetdesign, Enter key starts functions,
positioning of cursor in edit boxes, frequence/wavelength info in
magnitude chart (Allison). Small bugfixes: minphase below/above frequency, label in psychoacoustic + others
V1.3
a-v: Copy curve, move curve, new feature in windowing function, new
arrangement of macros (macro1 - macro4), SRC gain adjustment, silence
function, CorTest filter, Kaiser window 140/180 dB, improved algorithm
minphase/linphase, folder selection for XO generator, RWindow width,
Cor filters to minphase, ETC display, project workspace introduction,
test convolution, time alignment for up to 5-way systems, Amplitude sum
function, mic calibration, Hanning window in logsweep, gain display in
macro4. Handling: combobox in macro1, page control/tabs, subsonic edit box in target designer, IACC (inter-aural coherence). Improvements:
minphase optimization, RemoveDC, Q display in target designer.
Bugfixes: memory leakage, max. envelope, chart automatic
minimum/maximum, average function, NAN problem + many other small
improvements
V1.2 f-r: Logsweep 16, 24 and 32 bits incl. dithering (16/24), amplitude/time chart without phase chart, save files with write protection and confirmation, compression two separate functions - fix level and reference curve, crossover up to 5 bands, macro2 for 5 bands, export ampltude response to Excel, gain in macro2, history function, Dirac pulses in logsweep, shortcuts for functions, filter length up to 131072. Small bugfixes: open logsweep records, save wav <> 65536 samples length, SRC improvement + others
03.11.2006:
V1.2e - Slight improvement of TacTSpecial, Wav-Filter applies
triangular (TPDF) dither, removed LogSweep Recorder function from
Acourate due to introduction of the separate LogSweep Recorder acourateLSR
22.10.2006:
V1.2 - ASIO Logsweep Recorder introduced. You can now record the sweep
by Acourate itself (e.g. Audacity is no longer required). The recorder
is designed for the purpose of logsweep recording. The recorder uses
the ASIO interface to overcome some limitations of the Windows MMIO
system. Thus an ASIO driver is necessary with your soundcard. Most
soundcards have such a driver. If not (e.g. mainboard soundchips) then
try to run with ASIO4All, see http://www.asio4all.com/. The filename of
the recording is the logsweep filename with the ending _rec.wav.
16.10.2006:
V1.1 - TacT RCS2.0S and 2.2X supported. Workaround solution completely
outside of RCS measurement functions. Thus possibility to control the
correction result. Acourate generates crossovers as correction files.
Correction files also include these crossovers in mode 2.0.
19.09.2006:
V1.0d - small modifications to improve the user interface
18.09.2006:
V1.0b
- Target Designer. Starting with version 1.0 Acourate has a target
designer included. Easy creation of target curves without editing.
Select the appropriate drag operation and draw your target along the
measurement curve. Store a target and make a new one with slight
differences for listening comparison. Watch out for the next tutorial.
08.09.2006:
V0.7 - Room correction functions automated. Up to now Acourate has used
single functions to be called for each step. Starting with V0.7
Acourate has macros to allow easier computation of room correction
filters. The macros require some conventions are met. Licensed users
will recieve detailed information about utilizing the automation
functions. Shortcuts for functions introduced, see menu for description.
28.08.2006:
V0.6q - New function: Time Alignment Assistant. Now you can mark the
time alignment peaks and easily get the necessary delays, see tutorial
no. 4. Logsweep Generator: now creation of stereo left/right only
signals possible. Dirac test pulse can be added to logsweep to check
for time glitches between playback and recording. Save function: after
save the chart legend is updated to the save filename.
22.08.2006:
V0.6o - New menu: wav-Functions. The 1st function 'wav-Filter' allows
to read standard wav-files (16bit, 24bit, 32bit) and to apply one
(mono, stereo) or two different (stereo) filters, e.g. room correction
filters, on the wav-file. The result is stored under the same filename
with the extension _FIR.wav. The filter(s) have to be loaded as curve1
(and curve2). Processing time for a stereo wav-file of ~5min length
with two different filters of size 65536 taps on my laptop is about 10
seconds. The new function allows user to test or use a room correction
without a convolution engine by grabbing a CD, treating each track with
wav-Filter and burning the modified track on a CD.
15.08.2006:
V0.6n - Acourate now reads also mono 32bit wav-files. The LogSweep is
saved as 32bit wav-file, this allows to open it easily with Audacity.
The logsweep convolution also working with 32bit wav. Thus the export
format of Audacity should be set accordingly. Compression function:
frequency range selection added. Amplitude Difference also creates
minphase signals. CutNWindow: peaksymmetric checkbox visible again.
Radiobutton for marked area displays the selected range. Some minor bug
fixes.
07.08.2006: V0.6m - Added functionality to
CutNWindow with peak search in marked selection, FatLine Checkbox for
an easier identification of the active curve by a thicker line,
Samplerate 88200 Hz added, Samplerate Converter also handles 88200 Hz,
some more info in the Amplitude Chart
05.08.2006:
V0.6k - XP Manifest, Zoom button pictures, 96 kHz bug fix
21.07.2006:
V0.6f - Selection of right marker could create problems, bug fixed
19.97.2006:
V0.6e - Usability improvements: Introduction of Expert/Normal user mode
(ini-file), Logsweep convolution progress bar, Filename for Save,
Selection indication by colorband
17.07.2006: V0.6d
- raw-format for open allowed, Normalization refined, Save function for
all samples in full license refined, bugfix with step response display,
killed by a grue.
07.07.2006: BruteFIR on a USB
memorystick - added package ready to use for a RME HDSP9652 soundcard
including setup instruction.
07.07.2006: V0.6c -
Logsweep format changed to *.raw for better compatibility with
Audacity, convolution filename bug fix.
02.07.2006:
V0.6b - Improvement of AQT3 psychoacoustic, improvement of frequency
response marker selection
27.06.2006: V0.6a - New
functions: Leading/Trailing Zero Insertion, AQT3 Psychoacoustic
Frequency Response; Modification: SampleRateConverter with
KaiserImpulse instead RemezImpulse for stability reasons, Behaviour of
Function Form3
13.06.2006: V0.5e - Bugfixing -
always these little bugs :(
10.06.2006: V0.5a - New
functions: Samplerate Conversion, Logsweep Generator, LogSweep
Convolution (computation time for 2 x 60 sec logsweep and inverse in
double precision ~ 10 sec on my Centrino laptop), improved display
speed with millions of points, e.g. LogSweep measurement
-
Note: Please download together with new MtxVec build 16.5.06 -
26.05.2006:
V0.4a - New functions: Linear Phase Extraction, Group Normalization
24.05.2006:
V0.3g - Minor changes: display of computer ID, icon
22.05.2006:
V0.3e - First release of Acourate trial version at www.acourate.com
(((acourate)))™
