44 lines
1004 B
Plaintext
44 lines
1004 B
Plaintext
README
|
|
for codec2/unittest
|
|
Created David Rowe 31 July 2012
|
|
|
|
Training (experimental) sparse phase VQs:
|
|
|
|
1/ In ../src/phase.c phase_experiment() enable:
|
|
|
|
print_sparse_pred_error()
|
|
|
|
and 'make' c2sim (in src)
|
|
|
|
2/ Run over a training database:
|
|
|
|
$ ./c2sim /xhome1/codec2/samples/train.spc --phaseexp > train_phtrain.txt
|
|
|
|
a) check stats in Octave:
|
|
octave> load ../src/train_phtrain.txt
|
|
octave> std(nonzeros(train_phtrain(:,1:20)))
|
|
octave> hist(nonzeros(train_phtrain(:,1:20)),20)
|
|
3/ Extract and convert to floats vector you wish to train for example
|
|
first 20 (out of MAX_AMP == 80):
|
|
|
|
$ ./extract ../src/train_phtrain.txt train_phtrain.flt 1 20
|
|
|
|
4/ Convert to rectangular:
|
|
|
|
$ ./polar2rect train_phtrain.flt train_phtrainr.flt
|
|
|
|
5/ Run this program:
|
|
|
|
$ ./vqtrainph train_phtrainr.flt 20 1024 vq.txt
|
|
|
|
Ouput is vq.txt
|
|
|
|
Tests
|
|
-----
|
|
|
|
+ build up insmallest possible stesp
|
|
+ impl errors v alg errors
|
|
+ use actual phase data as codebook
|
|
+ test vq with rand phases first or known data
|
|
|