b46a2f86b5
First version of the dynamic time warping algorithm.
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F32 only. Some windows suppported.
3 years ago
f757add3bb
Added window functions for use with Fourier transforms.
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Regular functions for use with tone detection and noise estimation.
Flat-top windows for estimation of tone amplitudes.
Parameters of the windows are given.
Kaiser window missing (Bessel function not available in the library).
No f16 implementation since it is not accurate enough. It is better
to compute a f32 window and convert to f16 after.
3 years ago
633ab5913e
Add Conversion functions from and to 64 bit floating point
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Cleaned f64 conversion functions.
3 years ago
91ef795234
Corrected issue #66
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Saturation problem in arm_absmax_no_idx_q(7|15|31)
Difference of behavior for absmax_q(7|15|31) between reference and code:
reference is first max found. Code was last max found.
3 years ago
633b528421
Corrected issue #49
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Incorrect out of bounds value for linear interpolation (float).
3 years ago
865419778b
Added tests for the new accumulate functions.
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Corrected build issue on Neon without aarch64 support.
Corrected some Doxygen issues
3 years ago
91f599c052
Householder and QR decomposition for matrices (f64,f32,f16).
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(not yet optimized)
3 years ago
99bcacd027
CMSIS-DSP: Some improvements for sign conversion warnings.
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Added new tests for function in utils.h
4 years ago
29cb70ce55
CMSIS-DSP: scalar atan2 q31, q15, f32 and f16
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Correction to q15 and q31 division when denominator is max
negative value.
4 years ago
8dcdb350a4
CMSIS-DSP: Mean square error for q15, q31, f16, f32, f64.
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Reworked q7 to have a bit more accuracy.
4 years ago
47a987217f
CMSIS-DSP: Mean square error q7
4 years ago
02d4e88031
CMSIS-DSP: Reworked sqrt q15 and q31
4 years ago
cd7ecea5a7
CMSIS-DSP: Corrected some failing f16 tests.
4 years ago
3976ce6959
CMSIS-DSP: Corrected wrong test pattern for fixed point division.
4 years ago
8092cc61f9
CMSIS-DSP: New MFCC Q15 and Q31
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arm_cmplx_mag_q15 reworked to be more accurate but less efficient.
New function arm_cmplx_mag_fast_q15 introduced to retain previous
(less accurate) but faster behavior.
Improvement to Python wrapper to support the new functions.
4 years ago
99dc566e87
CMSIS-DSP: MVE versions of vlog q15 and q31 and PythonWrapper fix
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PythonWrapper was no more building on windows due to a too long
link command line.
A temporary fix was made. But on long term the wrapper must be refactored
into submodules to allow to more easily add new functions.
4 years ago
0597838b9f
CMSIS-DSP: New f64 tests
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Tests for : BasicMaths, ComplexMaths, Stats, FastMath
Filtering, Distances, Support.
Some tests are disabled because only a subset
of the functions has been converted to f64.
4 years ago
9674e00294
CMSIS-DSP: log f16 update
4 years ago
8fb55a90b7
CMSIS-DSP: Added MFCC F16
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This first version is not very accurate due to problems with the log.
A coming commit will improve the log accuracy.
Issues #1305 and #1304 also corrected as part of this commit.
4 years ago
3d264cfabb
CMSIS-DSP: MFCC F32
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MFCC F32 implementation
MFCC F32 tests
MFCC F32 in Python wrapper
Python wrapper structure updated to support submodule like
cmsisdsp.mfcc and cmsisdsp.fixedpoint
PythonWrapper tests updated to use the new fixedpoint
cmsisdsp.mfcc is used to generate the mel filter, dct and window coefficients.
4 years ago
9f36d99a0b
CMSIS-DSP: Correction os issue 1274
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arm_mat_solve_lower_triangular_f32 and arm_mat_solve_upper_triangular_f32
had constraints which could be removed to make the function
more generic.
4 years ago
840a233053
CMSIS-DSP: Scalar version for arm_vlog_q31
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Added scalar version of arm_vlog_q15
Updated PythonWrapper with vlog q31 and q15
Corrected small compilation issue with AC5 compiler.
4 years ago
1019e4c4a8
CMSIS-DSP: Correcting a bug in matrix inversion
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When pivot is 0, the row permutation code was not correct and failing on
some matrixes (but not all matrixes).
5 years ago
90c27e0f4a
CMSIS-DSP: Added absmin and absmax
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Scalar versions only.
f32, f16, q31, q15, q7.
5 years ago
baa16ae1a1
CMSIS-DSP: Correcting issue #1165
5 years ago
e9a8ba6255
CMSIS-DSP: Scalar version of Levinson Durbin algorithms.
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f32, f16 and q31.
5 years ago
68dd797c99
CMSIS-DSP: Helium code for clipping functions.
5 years ago
0556e5fb2a
CMSIS-DSP: Added scalar version of clipping functions.
5 years ago
4357c9e947
CMSIS-DSP: Added scalar f32 quaternion functions.
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Some correction for RFFT Fast f32 in Python wrapper
5 years ago
9a254bc926
CMSIS-DSP: Improvements for building with gcc on M55.
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Solve most of f16 issues. But there are still some remaining
build issues with gcc10q4.
2 functions are reverting to scalar version when build with gcc on M55.
(Since Helium versions of those functions are not building).
5 years ago
212e9cb805
CMSIS-DSP: Added Cholesky decomposition
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LL^t and LDL^t variant.
Added foward and backward substitution to solve linear systems
with triangular matrix.
5 years ago
078c0b282d
CMSIS-DSP: Improved f16 scalar code.
5 years ago
1b34e464ba
CMSIS-DSP: Added new f16 tests
5 years ago
d4b4df5198
CMSIS-DSP: Added f32 distance tests
5 years ago
1b0af07ac9
CMSIS-DSP: Added stats and SVM tests
5 years ago
c2325e1370
CMSIS-DSP: Added Bayes benchmarks
5 years ago
69d56b1a31
CMSIS-DSP: f16 versions of classical ML functions
5 years ago
b8c9c080d7
CMSIS-DSP: Adedd f16 test patterns for Bayes classifier
5 years ago
886692b84e
CMSIS-DSP: Added f16 test patterns for SVM
5 years ago
2cafb0c42f
CMSIS-DSP: Added f16 test patterns for distance functions
5 years ago
55c9be8af0
CMSIS-DSP: Added additional f16 statistics functions
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and the required f16 fast math functions.
5 years ago
534c34f883
CMSIS-DSP: Added f16 support functions
5 years ago
51be1901ce
CMSIS-DSP: Added f16 versions of statistics functions.
5 years ago
71218873eb
CMSIS-DSP: Added f16 versions of linear and bilinear interpolations
5 years ago
d2d691cc23
CMSIS-DSP: Added f16 matrix functions
5 years ago
7d79ffa51f
CMSIS-DSP: Added arm_correlate_f16
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Corrected PythonWrapper issues due to new f16 functions
5 years ago
f0750e92c2
CMSIS-DSP: Added f16 version of biquads.
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Corrected few doxygen issues.
5 years ago
7c55ae80f7
CMSIS-DSP: Added arm_fir_f16
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Improved f16 comlex dot product
Correction to compile flags to FFT tables for MVE version.
5 years ago
ebf9104c4e
CMSIS-DSP: Added complex math f16
5 years ago
41f2015387
CMSIS-DSP: Re-organization of arm_math.h
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arm_math.h splitted into several headers.
Interpolation functions moved from arm_math.h to a separate folder.
5 years ago
Christophe Favergeon
Silfurion