Comment 15 for bug 204898

Hey Mario,

I'm not sure, but Karmic packages on Jaunty should work.

Anyway, I took measurements with a sound meter and my headphones. I think we're just migrating the problem. Alsa is already a dB scale. This patch maybe makes it more linear to the ears. I don't know enough about sound to say for sure.

It works, but needs some tuning or a more advanced algorithm.

With patch:

Varying master:
16: 53dbC
19: 54dbC
23: 56dbC
26: 57dbC
29: 59dbC
32: 61dbC
35: 62dbC
39: 64dbC
42: 66dbC
45: 67dbC
48: 69dbC
55: 71dbC
58: 73dbC
61: 75dbC
65: 77dbC
71: 79dbC
74: 80dbC
77: 83dbC
81: 85dbC
84: 85dbC
87: 87dbC
90: 87dbC
94: 87dbC
97: 87dbC
100: 87dbC

Without patch:

26: 52dbC
29: 53dbC
32: 54dbC
35: 56dbC
39: 57dbC
42: 59dbC
45: 61dbC
48: 62dbC
52: 64dbC
55: 66dbC
58: 68dbC
61: 69dbC
65: 71dbC
68: 72dbC
71: 74dbC
74: 76dbC
77: 78dbC
81: 80dbC
84: 82dbC
87: 84dbC
90: 86dbC
94: 86dbC
97: 86dbC
100: 86dbC