How to mix waves

[paul_nicholls]

I've made a "wave reator" to simulate old sound stuff (square, saw, sinus and noise). Now I want to write a function to mix the waves.

I did something similar to:

(* Pseudo Pascal *)
  FUNCTION MixWaves (Wave1, Wave2: ARRAY OF BYTE): ARRAY OF BITE
  BEGIN
    FOR B := 1 TO Length (Wave1) DO
      Result[B] := (Wave1[B] + Wave2[B]) DIV 2;
  END;

It almost works but the result sounds "softer" (I mean with less volume).

What function should I use?

I know it has been a while, but I found this site the other day which might help with the mixing and volume issues:
http://www.vttoth.com/digimix.htm

cheers,
Paul

[Ñuño Martínez]

Didn't I reply you? IIRC i commented that JSoftware's and Dan's solution would result in distorted sound. BTW I didn't tested it yet so I can't tell you.

[paul_nicholls]

Didn't I reply you? IIRC i commented that JSoftware's and Dan's solution would result in distorted sound. BTW I didn't tested it yet so I can't tell you.

No, I hadn't seen any reply from you.

Anyway, apparently the link I gave you makes mixing possible without volume changes or distortions

cheers,
Paul

[JSoftware]

This article sums it up pretty nicely. http://kebby.org/articles/fr08snd4.html

Just under the illustration in section 4.2 there's a section about mixing. In short, don't do any tricks to avoid clipping

[paul_nicholls]

This article sums it up pretty nicely. http://kebby.org/articles/fr08snd4.html

Just under the illustration in section 4.2 there's a section about mixing. In short, don't do any tricks to avoid clipping

hmm...interesting article, thanks for sharing

cheers,
Paul