Many readers of the magazine are building all kinds of model planes, ships, trains, cars and other equipment. However, for greater affinity with their prototypes it is desirable to “voice”, which will give them even greater appeal. Recall, for example, sounded like a train. First heard a gradually increasing noise of a train, then near the station he blows his whistle to his approximation, and stood, and noisily blowing off steam, making a sound like “poof poof poof”. Before leaving the station bell sounds, and the locomotive gives a farewell whistle before the journey.
The proposed description of a fairly simple synth sound effects for model a passenger train with a steam locomotive. The block diagram of the synthesizer shown in figure 1. It consists of several independent blocks: generator of “pant”, generator, whistle, generator, ringing bells, mixer, amplifier AF with the speaker. Description the last block is not given.
Fig. 1. The block diagram of the synth sound:
1 — “pairs” 2 — block “whistle”, 3 — “the bell”, 4 — mixer, 5 — uzch, 6 — speaker.