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66 Commits (90f5435c504168e092f2369226a4ab090bc3afac)

Author SHA1 Message Date
Christophe Favergeon b46a2f86b5 First version of the dynamic time warping algorithm. 
F32 only. Some windows suppported.
 3 years ago
Christophe Favergeon f757add3bb Added window functions for use with Fourier transforms. 
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
Silfurion 633ab5913e Add Conversion functions from and to 64 bit floating point 
Cleaned f64 conversion functions.
 3 years ago
Christophe Favergeon 91f599c052 Householder and QR decomposition for matrices (f64,f32,f16). 
(not yet optimized)
 3 years ago
Christophe Favergeon 99bcacd027 CMSIS-DSP: Some improvements for sign conversion warnings. 
Added new tests for function in utils.h
 4 years ago
Christophe Favergeon e45dc7c22e CMSIS-DSP: Improvements to pull request #1363 
To avoid having to change the API in an incompatible way,
a arm_mat_mult_opt_q31 was introduced and is providing a faster implementation
to use with Helium (but requiring more storage for intermediate results).

Some improvements to tests for matrix functions added.
 4 years ago
Christophe Favergeon 8092cc61f9 CMSIS-DSP: New MFCC Q15 and Q31 
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
Christophe Favergeon 0597838b9f CMSIS-DSP: New f64 tests 
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
Christophe Favergeon 8fb55a90b7 CMSIS-DSP: Added MFCC F16 
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
Christophe Favergeon 3d264cfabb CMSIS-DSP: MFCC F32 
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
Christophe Favergeon 4014866174 CMSIS-DSP: Remove some gcc compilation warnings. 5 years ago
Christophe Favergeon baa16ae1a1 CMSIS-DSP: Correcting issue #1165 5 years ago
Christophe Favergeon e9a8ba6255 CMSIS-DSP: Scalar version of Levinson Durbin algorithms. 
f32, f16 and q31.
 5 years ago
Christophe Favergeon 0556e5fb2a CMSIS-DSP: Added scalar version of clipping functions. 5 years ago
Christophe Favergeon 4357c9e947 CMSIS-DSP: Added scalar f32 quaternion functions. 
Some correction for RFFT Fast f32 in Python wrapper
 5 years ago
Christophe Favergeon 4165f51802 CMSIS-DSP: Tuning of link scripts to be able to run bigger tests on IPSS. 5 years ago
Christophe Favergeon 4288cf4fec CMSIS-DSP: Some improvements to build Helium version with gcc. 
Helium f16 disabled by default with gcc since there are a few remaining build issues.
 5 years ago
Christophe Favergeon 6f229b4f65 CMSIS-DSP: New MVE implementation of the FIR f32 5 years ago
Christophe Favergeon 212e9cb805 CMSIS-DSP: Added Cholesky decomposition 
LL^t and LDL^t variant.

Added foward and backward substitution to solve linear systems
with triangular matrix.
 5 years ago
Christophe Favergeon 69d56b1a31 CMSIS-DSP: f16 versions of classical ML functions 5 years ago
Christophe Favergeon f51b3c3317 CMSIS-DSP: Added f16 versions of the distance functions 5 years ago
Christophe Favergeon 55c9be8af0 CMSIS-DSP: Added additional f16 statistics functions 
and the required f16 fast math functions.
 5 years ago
Christophe Favergeon 534c34f883 CMSIS-DSP: Added f16 support functions 5 years ago
Christophe Favergeon 51be1901ce CMSIS-DSP: Added f16 versions of statistics functions. 5 years ago
Christophe Favergeon 71218873eb CMSIS-DSP: Added f16 versions of linear and bilinear interpolations 5 years ago
Christophe Favergeon d2d691cc23 CMSIS-DSP: Added f16 matrix functions 5 years ago
Christophe Favergeon 7d79ffa51f CMSIS-DSP: Added arm_correlate_f16 
Corrected PythonWrapper issues due to new f16 functions
 5 years ago
Christophe Favergeon f0750e92c2 CMSIS-DSP: Added f16 version of biquads. 
Corrected few doxygen issues.
 5 years ago
Christophe Favergeon 7c55ae80f7 CMSIS-DSP: Added arm_fir_f16 
Improved f16 comlex dot product
Correction to compile flags to FFT tables for MVE version.
 5 years ago
Christophe Favergeon ebf9104c4e CMSIS-DSP: Added complex math f16 5 years ago
Christophe Favergeon 8b465544a1 CMSIS-DSP: Added arm_rfft_fast_f16 5 years ago
Christophe Favergeon fe79fc5a00 CMSIS-DSP: Updated tests to use the new headers. 5 years ago
Christophe Favergeon 41f2015387 CMSIS-DSP: Re-organization of arm_math.h 
arm_math.h splitted into several headers.
Interpolation functions moved from arm_math.h to a separate folder.
 5 years ago
Christophe Favergeon 8268b079d5 CMSIS-DSP: Added new matrix functions and MVE version 
arm_mat_mult_q7.c
arm_mat_trans_q7.c
arm_mat_vec_mult_f32.c
arm_mat_vec_mult_q15.c
arm_mat_vec_mult_q31.c
arm_mat_vec_mult_q7.c
 6 years ago
Christophe Favergeon c33adc9485 CMSIS-DSP: Improvements to the float16 support for building. 6 years ago
Christophe Favergeon b543f5c61c CMSIS-DSP: Added f16 support to test framework. 
Added preliminary f16 versions of some functions
 6 years ago
Christophe Favergeon 12af686c77 CMSIS-DSP: Correction of issue 891 
Use of arm_cfft_init_f64 in the tests for coherency with other
cfft tests.
 6 years ago
ClaudioMartino 1d51b2ba00 CMSIS-DSP: Modified spline f32 to compute coeffs at init time 
- Moved coefficients computation to init function
- Improved documentation
 6 years ago
ClaudioMartino 64d43685fb CMSIS-DSP: Added MVE support for logical operators (modified prototypes) 6 years ago
ClaudioMartino fb1f6b04a7 CMSIS-DSP: Added scalar float64 entropy and kullback leibler 6 years ago
Christophe Favergeon 05fcad5977 CMSIS-DSP:Added tests for arm_bilinear_interp (f32,q31,q15 and q7). 
Corrected bug in arm_bilinear_interp_f32. Now indexes are starting at 0
like with other bilinear versions.
 6 years ago
Christophe Favergeon ceca332b10 CMSIS-DSP:Added tests for arm_linear_interp f32, q31, q15 and q7. 6 years ago
Christophe Favergeon c0a597a51c CMSIS-DSP: Added test patterns for arm_fir_decimate and arm_fir_interpolate. 
Added MVE code for arm_fir_decimate and arm_fir_interpolate.
 6 years ago
Christophe Favergeon b6d9bdd4ef CMSIS-DSP: Added MVE code for arm_cfft_q15 6 years ago
Christophe Favergeon f5c31e6af4 CMSIS-DSP: Added MVE code for cfft q31 
Added tests patterns for RFFT Q31 and Q15.
 6 years ago
Christophe Favergeon 3060b1da8f CMSIS-DSP: MVE version of arm_cfft_f32. 6 years ago
ClaudioMartino 169877344c Corrected spline interpolation and merge sort 6 years ago
ClaudioMartino bbafcb8960 Added logical operators + sorting + spline 
- Added NEON bitwise AND, NOT, OR, XOR (q7, q15, q31)
- Added Sorting algorithms f32 (NEON bitonic sort)
- Added cubic spline interpolation function
- Added test patterns for all
 6 years ago
Christophe Favergeon ea8a5b2800 CMSIS-DSP: Added new tests for Biquads. 
Added MVE code for Biquads.
 6 years ago
FabKlein ee57bbde54 CMSIS-DSP: Initial F64 CFFT/RFFT implementation 6 years ago