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8 | 8 | <span class="topic">Importing DPCM samples</span>
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10 | 10 |
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11 | 11 | <p class="text">
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12 | 12 | This feature is used to convert Microsoft wave files (.wav) to 1-bit DPCM samples,
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13 | 13 | as used by the NES hardware's sample channel.
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14 | 14 | The format of the wave files must be PCM, no compressed formats are supported.
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15 | 15 | Sample rate, sample size and channel count doesn't matter, the file will be
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16 | 16 | resampled according to the quality setting.<br /></p>
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| 17 | + |
| 18 | + <p class="text"> |
| 19 | + <img id="IMG1" style="FONT-SIZE: 10pt" src="img/pcm_import.png" |
| 20 | + alt="Screenshot of PCM import dialog"></p> |
17 | 21 |
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18 | 22 | <p class="text">
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19 | 23 | Choose import in
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23 | 27 |
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24 | 28 | <ul class="text">
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25 | 29 | <li><b>Quality</b><br />
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| - Sets the sample rate for the converted sample, this is equivalent to the pitch setting in the instrument editor. Use the same setting to play the |
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| - sample at original pitch. Quality of 15 gives |
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| - best result but also shortest sample time.<br /><br /> |
| 30 | + Sets the <a href="2a03.htm#DPCMSamplerate">sample rate</a> for |
| 31 | + the converted sample, this is equivalent to the pitch setting |
| 32 | + in the instrument editor. Use the same setting to play the |
| 33 | + sample at original pitch. Quality of 15 gives the best result |
| 34 | + at the cost of shortest sample time.<br /><br /> |
29 | 35 | </li>
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30 | 36 | <li><b>Gain</b><br />
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31 | 37 | Sets the conversion volume level. Range: -12dB to +12dB.
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34 | 40 |
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35 | 41 | <p class="text">
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36 | 42 | Maximum supported size of one DPCM sample
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37 |
| - is 4 kB, at quality 15 (33 kHz) it's a little |
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| - less than one second and lowest quality (4 kHz) about eight seconds.</p> |
| 43 | + is 4 kB (4081 bytes). At rate 15 (33.14394 kHz NTSC / 33.2521 kHz |
| 44 | + PAL), the play length is a little less than a second, while the |
| 45 | + lowest rate 0 (4.18171 kHz NTSC / 4.17740 kHz PAL) lasts about eight |
| 46 | + seconds.</p> |
39 | 47 |
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40 | 48 | <hr />
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41 | 49 | <span class="footer">Back to <a href="interface.htm">interface</a> · <a href="main_index.htm">main index</a></span>
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