Activity for David Rowe
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David Rowe committed [r4128]
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better formating
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getopt-fied and added stride
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powf patch - thanks Danillo
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Brad's patch for automatically sorted out USB devices that have changed order - thanks Brad
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support for running ofdm_dev without CML, high doppler/hgh SNR option for phase estimation
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run_single working again (uncoded)
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extra tofdm test for non-standard Nc
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accidentally setting up some LDPC constants when modem was meant to be operated uncoded. Thanks Don for finding this one
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support for efficient use of unused data bits, improved 2020 waveform performance by 1.7dB, examples in README_ofdm.txt
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updated for latest incarnation of FreeDV 2020
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building up support for unused data bits in LDPC codeword, all tests passing
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first pass at (504,396) LDPC code support for FreeDV 2020
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option for good use of unused data bits, when payload data is smaller than code
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missing package, thanks Brad
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fine patch from Danilo for a clever way to optimise memory on embedded devices by disbaling unused modes at compile time. Thanks Danilo
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first pass at high latitude ofdm waveform design
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refactored storage for Nc!=17 operation with no LPDC codec, arrays were being overwritten
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moved verbose levels about to make output legible
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added feature to discard BER results from first few frames as these are often very high BER not representative of entire test
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fifo rename to avoid namespace clash, thanks Danillo
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changed calculation of lowest carrier to use round() rather than floor() to avoid round off error between C and Octave, tofdm works on 22 carriers now
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updated for latest LPCNet 1733 bit/s
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leave ofdm test in a working state
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modified tofdm.[mc] to work with variable Nc
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UW symbol and bit mapping behaiving sensibly. We can change Nc and get good results. Made the call to fix UW and txt bits lengths, let payload symbols vary with Nc. Not sure if this is the best way to go, but it's a start!
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working on user-defined modem config to match C code, works for 700D, but not general configs, am debugging ...
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patch from Danilo to clean up M4 and embedded support, thanks Danilo
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mbest optimisation for Codec 2 700C - thanks Danilo
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new ctest for (504,108) LDPC code - thanks Brad
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updated examples
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Brad's fine work integrating the new (504,108) LDPC code design by Bill, vk5dsp. Thanks's Brad :-)
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cmd line option patch for freq offset est params, thanks Mark
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tnlp src file, plus some other potentially useful utilities
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Brads latest and greatest, tweaked function name to match filename
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mode ordering patch - thanks Maitland
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formatting
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script to generate C HRA files - thanks Brad!
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builing nlp, vqtrain has cmd line stop criteria
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various new features to vqtrain to support LPCNet work
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was freeing an mod_out when unallocated, causing freedv-GUI to crash
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oops - one more file for BSD patch
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bringing up to date (draft)
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first pass at LPCNet waveform
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BSD patch thanks SASANO
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OpenBSD support thanks Sasano and Jeroen
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higher order LPC, works at 16kHz
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fix the issue with unselectable sample rates in the Audio config, and plotting while recording
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recursion to speed up dft(), jointly developed by Steva and David :-)
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added initial var est to help target # bits
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exploring latest candidate waveforms
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Steve's patch for ofdm that allows separate tx and rx carrier frequencies, thanks Steve :-)
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progressing utils for VQ training for LPCNet
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VQ utilities
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patch from Steve to speed up ofdm modem, cexpf() realpaced by faster cos() and sin() calls, with optional use of fast ARM trig functions - thanks Steve!
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Patch to reduce memory use of ofdm modem due to recent speed up changes. Still need to optimise dft() with a recursion if possible. All tests passing. Thanks Steve!
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set path to ofdm via en var
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added basic test for fsk modem, should probably add a BER test too
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changed fsk demod freq est linmits, thanks Mark
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support for dumping deep learning features, to try LPCNet synthesis
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removed a few more warnings, and some repeated code in tofdm
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tofdm working with split HRA_112_112.c/.h files, added additional CTest with Dons's unittest/ldpc_check script
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typos
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notes about udev rules and st-util in PATH, which automated tests require
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added test for LDPC enc/noise/dec
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added list of Octave packages for Ubuntu
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added CTest for Horus binary
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cleaned out some unneeded samples, added sample for horus_demo CTest
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mod to remove alias warning
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dumping features after quantisation
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make sure Ctests only included in Debug mode
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updated README wisth short descritions of Codec 2 software, no longer building unneeded executables, reduced install target list
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removed/moved some unneeded programs
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misc programs building now
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updated location of local..mak
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added AWGN BER test for ofdm modem
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tofdm working with CTest with & without CML support
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Added first Ctest
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removed some warnings
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removed some warnings
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removed soem annoying warnings
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cleaned up unit test directory, updated and tested CMakeLists.txt/unittest
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tidying up unittest dir
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updated README for misc and fixed exe property
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minor README tweaks
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patch from Mark vk5qi
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thanks Steve for some fine work in speeding up the dft() and idft() functions using recursions, ofdm_mod now runs twice as fast
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typo
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changed random() to rand()
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freedv_rx help, fixed but in SNR updates, thanks Albert
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fix for 32 bit mode rounding issue
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GUI edits to assist operation by blind Hams, thanks Brad and Joe
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make sure voicing turned on
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added LPCs to feature set
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