ARM-software/CMSIS-DSP

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CMSIS-DSP embedded compute library for Cortex-M and Cortex-A

Stars: 1.1k
Forks: 244
Open beginner issues: 2
Indexed issues: 38
Avg merge: 1m
Merged PRs (30d): 1

Dominant language: C
License: Apache-2.0
Last GitHub push: Sep 10, 2026
Latest indexed: Sep 20, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

Open All

38 open issues indexed

arm_iir_lattice_f32: 3-9x available on multi-channel input via a batched entry point Open

DONE wontfix

Difficulty 5/5 Over a week Newbie friendliness 35/100

ARM-software/CMSIS-DSP#346 · 1 comment · Opened Sep 8, 2026
[Feature]: CMake install : generate a version file Open

DONE enhancement

Difficulty 2/5 1-2 days Newbie friendliness 72/100

ARM-software/CMSIS-DSP#343 · Opened Sep 2, 2026
const-qualify other FFT functions Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

ARM-software/CMSIS-DSP#312 · 2 comments · Opened Jun 4, 2026
Extend range of arm_mult_q31 Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

ARM-software/CMSIS-DSP#282 · Opened Nov 7, 2025
Usage of MFCC function arm_mfcc_q31/f32 Open

documentation question

Difficulty 4/5 3-5 days Newbie friendliness 28/100

ARM-software/CMSIS-DSP#279 · 3 comments · Opened Oct 23, 2025
[Feature Request] `arm_cmplx_dot_prod_real_*` — optimized real × complex dot product Open

future

Difficulty 4/5 3-5 days Newbie friendliness 42/100

ARM-software/CMSIS-DSP#277 · 4 comments · Opened Oct 16, 2025
Clarification on Adding Tests in Testing/Readme.md Open

documentation

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

ARM-software/CMSIS-DSP#259 · Opened Jul 10, 2025
Non-monolithic version of FFT Open

future

Difficulty 5/5 Over a week Newbie friendliness 35/100

ARM-software/CMSIS-DSP#257 · 1 comment · Opened Jul 3, 2025
Enhancement proposal: Use FlatBuffers to better organize + access tests input data Open

future

Difficulty 5/5 Over a week Newbie friendliness 20/100

ARM-software/CMSIS-DSP#255 · 1 comment · Opened May 14, 2025
SVM group failing in CMSIS-DSP 1.16.2 Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 30/100

ARM-software/CMSIS-DSP#254 · 1 comment · Opened May 14, 2025
Testing/processResult.py and missing currentConfig.csv? Open

documentation question

Difficulty 3/5 1-2 days Newbie friendliness 32/100

ARM-software/CMSIS-DSP#253 · 2 comments · Opened May 7, 2025
Problem with executing DSP code on STMCube IDE Open

question

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ARM-software/CMSIS-DSP#249 · 1 comment · Opened Apr 3, 2025
Calculate amplitude and phase of a given harmonic Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

ARM-software/CMSIS-DSP#241 · 1 comment · Opened Mar 7, 2025
arm_biquad_cascade_df2T_f32 Neon version is not working (and scalar version is re-enabled in library) Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ARM-software/CMSIS-DSP#231 · 3 comments · Opened Jan 16, 2025
Add Skewness and Kurtosis to Statistics Functions Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

ARM-software/CMSIS-DSP#229 · 4 reactions · Opened Jan 13, 2025
Add the function: arm_clip_f64() Open

wontfix

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

ARM-software/CMSIS-DSP#207 · 1 comment · Opened Aug 30, 2024
[Feature Request] Polyphase/Rational Resampling Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

ARM-software/CMSIS-DSP#194 · 3 comments · Opened Jul 9, 2024
There are several functions in the FilteringFunctions that should not have DSP extended macros. Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ARM-software/CMSIS-DSP#193 · 6 comments · Opened Jul 4, 2024
Correlation function arm_correlate_f32 has wrong output array length expectation for NEON Open

documentation enhancement neon

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

ARM-software/CMSIS-DSP#120 · 5 comments · Opened Sep 21, 2023
LDLT decomposition returns diagonal matrix D non-optimally Open

documentation enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ARM-software/CMSIS-DSP#119 · 1 comment · Opened Sep 20, 2023
GCC failing to identify SMM[UL\LA]R idioms causes performance issues Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ARM-software/CMSIS-DSP#117 · 7 comments · Opened Aug 31, 2023
In-place filtering, complex computation Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ARM-software/CMSIS-DSP#110 · 3 comments · Opened Jun 26, 2023
A faster and more accurate sine and cosine function Open

future

Difficulty 5/5 Over a week Newbie friendliness 35/100

ARM-software/CMSIS-DSP#97 · 1 comment · Opened Mar 15, 2023
Implement an equivalent to sosfilt_zi Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 42/100

ARM-software/CMSIS-DSP#83 · 1 comment · 1 reaction · Opened Jan 9, 2023
Performance benchmarks Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ARM-software/CMSIS-DSP#70 · 6 comments · Opened Nov 16, 2022
Add a clip_u31_to_q31 Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 25/100

ARM-software/CMSIS-DSP#68 · 4 comments · Opened Nov 3, 2022
Matching MFCC configuration with Librosa's Open

question

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ARM-software/CMSIS-DSP#54 · 3 comments · Opened Oct 5, 2022
Fixed-Point Helium Complex Multiplication saturation sensitivy Open

bug enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ARM-software/CMSIS-DSP#47 · Opened Sep 22, 2022
In-place operations Open

documentation question

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ARM-software/CMSIS-DSP#44 · 1 comment · 1 reaction · Opened Sep 6, 2022
Q formats should not be used as storage types Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 30/100

ARM-software/CMSIS-DSP#30 · Opened Jul 18, 2022
Reduce the size of tables for RFFT/RIFFT fixed point versions Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ARM-software/CMSIS-DSP#25 · 1 comment · Opened Jun 30, 2022
Trigonometric functions for fixed point Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

ARM-software/CMSIS-DSP#22 · Opened Jun 30, 2022
Improve accuracy of biquad functions Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

ARM-software/CMSIS-DSP#17 · Opened Jun 29, 2022
Improvements to Clarke/Park transforms Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 15/100

ARM-software/CMSIS-DSP#15 · Opened Jun 29, 2022
Autocorrelation Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

ARM-software/CMSIS-DSP#14 · Opened Jun 29, 2022
Accumulation functions Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 15/100

ARM-software/CMSIS-DSP#12 · Opened Jun 29, 2022
New multiply accumulate functions like in Ne10 Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

ARM-software/CMSIS-DSP#10 · Opened Jun 29, 2022
arm_sqrt_q15 accuracy improvements Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 15/100

ARM-software/CMSIS-DSP#9 · 1 comment · Opened Jun 29, 2022

ARM-software/CMSIS-DSP

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