Thread: How to piece together multiple sound files into one streamed .wav or .mp3 file?

Is your nick supposed to mean "Hagbard Celine"? In this case, I'd say "Think for yourself, schmuck!" ;-)

Assembling a .wav file that contains 18000 spoken characters is not a good idea. It will be huge, and it's far more elegant to write a program that reads the file and produces the corresponding sound on-the-fly:

Code:

char file[10];

while((c = fgetc(fp)) != EOF) {
        sprintf(file, "%c.wav", c);
        call_external_program("my_wavplayer %s", file);
}

If you just want to let the world know about the DNA sequence of a mitochondrion, it's probably more convenient to assemble a MIDI file where each instrument corresponds to a nucleoside. It will be much less boring to listen to, and it's easier to remember ;-)

MP3 is a streaming format, so simply appending two mp3 files should also work. On my system, I tested it with "cat a.mp3 b.mp3 >> c.mp3 && mpg123 c.mp3" and it worked perfectly. Don't forget to remove the ID3 tag from a.mp3 (i.e. the last 128 bytes), if it has one. You can easily do this with a hex editor, because the first three bytes of the ID3 tag are 'T', 'A' and 'G', if I remember correctly.

If you still insist on generating .wav files, I'd suggest using a library that reads and understands .wav files. Maybe SDL is a good starting point, but actually I don't know anything about graphics and sound programming. If this is supposed to be a short hack, I'd use Perl and whatever module that implements .wav support.

Greets,
Philip