Hello,
First of all I'm using rMATLAB2018.
I'm trying to resample an audio file with sampling rate 44100 Hz to 22050 Hz and then convert the last one into a PCM with 16 bits.
The resample was an easy step but I'm struggling to convert to PCM 16 bits...
This is my attempt:
[x, fs] = audioread(a_filename);% resample:
fsin = fs;fsout = 22050;m = lcm(fsin,fsout);up = m/fsin;down = m/fsout;x_22 = resample(x, up, down);audiowrite([a_filename,'_22050','.wav'], x_22, fsout);% convert to PCM 16 bit
fid = fopen([a_filename,'_22050','.wav'], 'r'); % Open wav file
wF = fread (fid, inf, 'int16');% 16-bit signed integer
fwrite(wF,'short');fclose(fid);
I'm getting this error message:
Error using fwrite
Invalid file identifier. Use fopen to generate a valid file identifier.
What am I doing wrong here? Thank you.
Best Answer