2013/11/6 Thanh-Son PHAN <sonphan.hts@xxxxxxxxx>
Thanks for your reply, I very appreciate,But when I try synthesis an wav file with the reconstructed ap file, it didn't work.
I use the matlab code from [Training.pl]:
addpath('path_to_straight');fprintf(1,'Synthesis demen.wav \n ');
prm.defaultFrameLength = 20;
prm.spectralUpdateInterval = 1;
prm.F0defaultWindowLength = 20; %ms
prm.F0frameUpdateInterval = 1; %ms
[x,fs]=wavread('demen.wav');
[f0,ap]=exstraightsource(x,fs,prm);
[sp]=exstraightspec(x,f0,fs,prm);
% read ap from reconstructed ap file
% code from training.pl
fid=fopen('demen.ap','r','ieee-le');
ap2=fread(fread(fid),[1025 , number_of_frame]);
[sy] = exstraightsynth(f0,sp,ap2,fs,prm);
wavewrite(sy/max(abs(sy)),fs,demen2.wav);2013/11/6 Keiichiro Oura <uratec@xxxxxxxxxxxxxxx>
Hi,It seems that the scripts are correct.If you are worried about band averaging, could you increase the number of band?Regards,Keiichiro Oura2013/11/6 Thanh-Son PHAN <sonphan.hts@xxxxxxxxx>
Thanks for your reply. I don't know what exactly a point is. I extracted aperiodicity coefficient with Straight and there are 513 parameters in each frame.
2013/11/5 Keiichiro Oura <uratec@xxxxxxxxxxxxxxx>
Hi,How many points per frame in the .ap generated by STRAIGHT?Regards,Keiichiro Oura2013/11/5 Thanh-Son PHAN <sonphan.hts@xxxxxxxxx>
This is demen.wav file: https://www.dropbox.com/s/xjd8outcuyl5jil/demen.wav[extract.m]: extracts AP and makes ap file with StraightDear all,I want to convert aperiodicity coefficients (extracted with Straight) to sub-band aperiodicity. I came to the old threadhttp://hts.sp.nitech.ac.jp/hts-users/spool/2008/msg00596.html and make the scipts files:
addpath('path_to_Straight');
prm.defaultFrameLength = 20;
prm.spectralUpdateInterval = 1;
prm.F0defaultWindowLength = 20; %ms
prm.F0frameUpdateInterval = 1; %ms
fprintf(1,'name_of_audio.wav \n ');
[x,fs]=wavread('demen51-56_0001.wav');
[f0,ap]=exstraightsource(x,fs,prm);
ap=ap';
save 'name_of_ap_file.ap' ap -ascii;
and the 2 shell scripts:[script 1] converts ap file to bap file:
echo "Converting aperiodicity file demen.ap to band aperiodicity file demen2.bap"; \
./x2x +af demen.ap | ./bcp +f -n 512 -L 64 -s 0 -e 63 -S 0 | ./average -l 64 > bap1; \
./x2x +af demen.ap | ./bcp +f -n 512 -L 64 -s 64 -e 127 -S 0 | ./average -l 64 > bap2; \
./x2x +af demen.ap | ./bcp +f -n 512 -L 128 -s 128 -e 255 -S 0 | ./average -l 128 > bap3; \
./x2x +af demen.ap | ./bcp +f -n 512 -L 128 -s 256 -e 383 -S 0 | ./average -l 128 > bap4; \
./x2x +af demen.ap | ./bcp +f -n 512 -L 129 -s 384 -e 512 -S 0 | ./average -l 129 > bap5; \
./merge -s 0 -l 1 -L 1 bap1 bap2 | \
./merge -s 2 -l 2 -L 1 bap3 | \
./merge -s 3 -l 3 -L 1 bap4 | \
./merge -s 4 -l 4 -L 1 bap5 > demen2.bap;
[script 2] reconstructs ap file from bap file:
# convert band-aperiodicity to aperiodicity
./bcp +f -l 5 -L 1 -s 0 -e 0 -S 0 demen2.bap | ./dfs -b 1 -1 | ./interpolate -p 64 | ./dfs -a 1 -1 > ./ap/demen2.ap1; \
./bcp +f -l 5 -L 1 -s 1 -e 1 -S 0 demen2.bap | ./dfs -b 1 -1 | ./interpolate -p 64 | ./dfs -a 1 -1 > ./ap/demen2.ap2; \
./bcp +f -l 5 -L 1 -s 2 -e 2 -S 0 demen2.bap | ./dfs -b 1 -1 | ./interpolate -p 128 | ./dfs -a 1 -1 > ./ap/demen2.ap3; \
./bcp +f -l 5 -L 1 -s 3 -e 3 -S 0 demen2.bap | ./dfs -b 1 -1 | ./interpolate -p 128 | ./dfs -a 1 -1 > ./ap/demen2.ap4; \
./bcp +f -l 5 -L 1 -s 4 -e 4 -S 0 demen2.bap | ./dfs -b 1 -1 | ./interpolate -p 129 | ./dfs -a 1 -1 > ./ap/demen2.ap5; \
./merge -s 0 -l 64 -L 64 ./ap/demen2.ap1 ./ap/demen2.ap2 | \
./merge -s 128 -l 128 -L 128 ./ap/demen2.ap3 | \
./merge -s 256 -l 256 -L 128 ./ap/demen2.ap4 | \
./merge -s 384 -l 384 -L 129 ./ap/demen2.ap5 > ./ap/demen2.ap;
The problem is that the ap file and the reconstructed ap file are totally different. I don't know how to solve the problem. I very appreciate your helps.This is demen.ap file: https://www.dropbox.com/s/3rywu09u29x4kl1/demen.ap
--Kind regards,Thanh-Son PHAN--Kind regards,Thanh-Son PHAN--Kind regards,Thanh-Son PHAN