< 3/ 7>SGL Sound Tutorial/2. Create a song

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SOUND TUTORIAL/2. Create a song

2-2. Take the sound of the instrument you use

The only difference between a Saturn target and a MIDI sound source when you turn on the power is that the target does not have tone data, so you can think of them as almost the same.
Here, we will use the Wave editor to obtain the sound handled by the target as a waveform.
The sounds provided in the SEGA Sound Library are quite large in size, so in order to actually use them in a game, you will need to reduce the size.
However, it is a good idea to use this library until you are familiar with the sound to some extent.

Now let's actually capture the sound.

This process is called sampling, and by using Sega Sound Tool's Wave Editor , the loaded sound can be output directly from the target.

Import sounds in the following order.

1) Launch the Wave editor

Start the Wave editor.

2) Create a new file

Select Create new file.

Figure 2-2 Creating a new file

3) Setting target module

Set the sampling conditions from the target.
Select “SCSP” since the sound will be generated from the target. Also, select "16bit" for sound import. After making your selection, click “OK”.

Figure 2-3 Target module settings

4) Import settings

If the sound capture time is less than 10 seconds, select Memory, and if it is longer, select HD.
Please select "16bit" as shown in the figure, and "mono" since only monaural data can be imported. After making your selection, click “OK”.

Figure 2-4 Ingest settings

If you select HD
In the case of HD, a file will be created after sampling and you will need to reopen the file yourself, so please be careful.
Therefore, if you use the Wave editor, try to keep it as large as possible in memory.

If you select HD, the following screen will appear. Normally, select “ON” and click “OK”.

Figure 2-5 HD settings

5) Make sounds

Select "Play Audio".

Figure 2-6 “Play Audio” selection

Then a keyboard screen will appear. Use this screen to play the sampled waveform.
However, since the main task here is editing the waveform, the volume will not change whether you press the key weakly or strongly.
Volume settings are made in the Tone editor .

Figure 2-7 Keyboard screen

When you press the keyboard part with the mouse, a sound will be emitted from the target.
Also, if you press the play button (▼), the basic key sound will be played. To stop, press the stop button (■).

6) Basic editing

Cut, copy, and paste are performed by selecting with the mouse and using the edit menu, just as in general word processing software.
The only difference is that in the case of pasting and cutting, you have the choice of overwriting the selected part or filling in the cut part, so the process is almost the same.

7) Loop

By applying a loop, you can repeat the sound within the specified loop range, reducing the size required for the waveform.
The figure below shows an example of loop settings. After setting, click “Set”.

Figure 2-8 Loop settings

If you hear a clicking noise at the end, try shifting the loop position.
While checking the sound with the space key, move it little by little with the arrows on the scroll bar.
There are three types of loops:

Figure 2-9 Loop mode

8) Setting effects for waveforms

I think there are some things you won't understand unless you try a lot of things, so I'll just give you a rough guide. All you need to do is change the numbers.

**Table 2-1 Effect contents**
Resample	11K~44.1K	Changing the number of samples (If you lower it too much, the sound will not be smooth)
Pitch Shift	0~127	The larger it is, the faster it will be (standard is 60)
Size Shift	Max FFFEh	Change size (affects all parameters)
Scale	100%	Adjusting the volume
Filter LPF (low pass filter) HPF (high pass filter)	500~16000Hz 32~2200Hz	Cutting frequencies higher than the set value Cutting frequencies lower than the set value
Compressor Threshold Compression Ratio	-90~0 1~90	The louder the volume, the lower the volume. The louder the volume, the lower the volume.
Noise Gate There should be Release Hold	-90~0 0~2000 0~2000	Mute the parts that don't reach this level Time until fade out Time until fade in

When making these adjustments, try to make small changes without changing the values too much.
Also, please save your data frequently.
The final file created will be a Macintosh AIFF (Audio Interface File Format) file.

The Wave editor that has been explained so far has the advantage of being able to check the sound directly from the target, but if you are already familiar with other Macintosh waveform editing software, you may want to use it only for final checks. I think it would be more efficient.
Macintosh sound-related software has a long history and is extensive, so why not try out various software?

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