Creating Continous horn sound

[tolgatanriverdi]

Hello
I'm working on to create continous sound such as horn sound in cars.As long as you push the horn the sound continues with same frequency.
However I dont know how can I do that with the horn recording that I have(You can see it in attachment).I have recorded the horn sound of the car with one time pressing the horn and now I want to make it sound like real horn(as long as you push the button sound should be heard as real car horn) but when I play it on audacity with looping it sounds strange.
Do you have any idea how can I create continous sounds like horn

Thanks

[kozikowski]

You need to be very careful about your edit points and a short sample is pretty painful to use.

Select a portion in the middle of the beep that, as near as you can tell, doesn't change beginning to end. Mark the beginning and end points with labels paying attention to the exact point the wave repeats and the blue wave zero crossing points.

Picture 1.png (23.24 KiB) Viewed 1293 times

Delete everything after the last sample, copy the segment and paste -End...and paste -End...and paste -End.

Koz

[steve]

As Koz has said, the loop points are the most important thing. You are looking for a place where the start and ends of the loop match up as closely as possible.
"Zero crossing points" (where the waveform crosses the centre line) are often used as the (zero) amplitude at each end of the loop will help to avoid clicking.
You also need to look at the "shape" of the sound. At certain zoom levels you can see that the waveform has a "ripple" and you need to match that up also.

Here's a screenshot illustrating a good choice of loop points.

loop-points.png (9.96 KiB) Viewed 1283 times

copy the segment and paste -End...and paste -End...and paste -End.

A much quicker way to do that part is to select the segment then "Effect menu > Repeat"

In this example it is quite a short section that is "looped" (repeated about 100 times)