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10
11<h1>snd - 3DSurround Demo</h1>
12
13<h2>Description</h2>
14
15<div class="section">
16<p>This is a sample of 3D surround.</p>
17</div>
18
19<h2>Required Environment</h2>
20
21<div class="section">
22<p>None.</p>
23</div>
24
25<h2>How to Use</h2>
26
27<div class="section">
28    <table>
29        <thead>
30        <tr>
31<th>Input</th>
32<th>Operation</th>
33        </tr>
34        </thead>
35        <tr>
36<td>A Button.</td>
37<td>Toggles mixed audio data between stereo and surround.</td>
38        </tr>
39        <tr>
40<td>B Button.</td>
41<td>Toggles the virtual speaker position of 3D surround audio between square and wide.</td>
42        </tr>
43        <tr>
44<td>R, L Buttons</td>
45<td>Sets the surround sound depth (R:+, L:-). You can specify a value in the range from 0.000000 through 1.000000.<br />The surround sound depth parameter indicates the intensity of the 3D surround sound effect when sound is output through the speakers. Larger values create a more pronounced effect. <br />The surround sound depth has no effect when sound is output through headphones.</td>
46        </tr>
47        <tr>
48<td>+Control Pad Left/Right</td>
49<td>Sets the pan position. You can specify a value from -1.000 through 1.000.</td>
50        </tr>
51        <tr>
52<td>+Control Pad Up/Down</td>
53<td>Sets the surround sound pan position. You can specify a value from -1.000 through 1.000.</td>
54        </tr>
55    </table>
56</div>
57
58<h2>Notes</h2>
59
60<div class="section">
61<p>None.</p>
62</div>
63
64<h2>Execution Procedure</h2>
65
66<div class="section">
67<p>When you run the demo, it displays its controls and the various parameter values.</p>
68    <p><img src="Fig/3DSurround.png"></p>
69<p>The following log is also displayed in debugger output.</p>
70    <pre class="code">
71Loading wav files...
72rom:/kart_title.32.wav (2ch, 32000Hz, 16-bit wav file)
73rom:/idle.wav (1ch, 32000Hz, 16-bit wav file)</pre>
74
75</div>
76
77<h2>Revision History</h2>
78
79<div class="section">
80    <dl class="history">
81        <dt>2011/10/12</dt>
82<dd>Added support for applets, and modified How to Use and the screen display.</dd>
83        <dt>2011/02/02</dt>
84<dd>Initial version.</dd>
85    </dl>
86</div>
87
88
89<hr><p>CONFIDENTIAL</p></body>
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