Looping “natural” (“real world” rather synthesized) sounds is difficult.
This was my attempt (mono)
With enough time spent, it would be possible to get a better loop, but assuming that when used it will be constantly changing speed, either of these loops will probably be close enough.
(Oneplus 7 pro using an audio recorder app set to 22050Hz stereo)
That’s not good news. 22050 sound quality is roughly half-way between AM and FM radio.
“Better than AM radio” is not a good sound specification for a production recording.
Koz
Steve,
That’s about what I end up with too when I try mono.
Kozikowski,
22050 hz allows for a 1.5 second long sample for need for speed Iii.
If the frequency goes down I can use a longer sample. If the frequency goes up, it limits the length of my sample.
What frequency do you think would be best for looping this sound in general? (without worrying about the game’s limitations).
Ideally, for full frequency range audio, 44100 Hz sample rate.
Going lower than that will cut down high frequencies, but I’d guess that the engine sound will be OK down to 22050 Hz sample rate (but not much lower).
Even at 22050 Hz sample rate, the available frequency range still goes over 10 kHz, which I’d expect to be sufficient.
Even at 22050 Hz sample rate, the available frequency range still goes over 10 kHz, which I’d expect to be sufficient.
True, but record the work in terrifically high, perfect quality so you can do production, effects, and filters on it to end up with 22050.
Koz
So I ended up recording the engine sound in 44100 Hz and it was much easier to get rid of the “zip” sound from this sample! But it introduced new problems. Now it picks up a hissing noise as well as wind and some clicking. After doing some research, I was able to get rid of the hissing noise by applying a low pass filter… but that seemed to make the actual sound of the engine seem further away and not as clear. And the sound of the wind was still there. I played around with the noise reduction effect to remove some of the wind sound but it doesn’t remove it completely. I’ve attached the raw 44100 Hz stereo sample as well as my best attempt at making a loop so far. I just grabbed a section that didn’t have any clicks, used a low pass filter to remove the hissing, and then noise reduction to remove some of the wind noise.
Maybe instead of recording my own car’s engine noise, I can take an engine sample from a video with the wind/hissing/clicks already edited out. I could also try recording at 44100 Hz again but this time while I rev the engine in neutral and that way I wouldn’t have to worry about wind. Although doing that is bad for my engine so I’d like to avoid that again if at all possible.
Man… I never imagined that audio editing would be so complicated and delicate lol.
I never imagined that audio editing would be so complicated
Somebody did a home video long ago where they went nuts making a screws and bolts and color of paint exact replica of a television news set. You sat there watching this thing stunned and the suspension of disbelief carried them right up to when somebody tried to talk. Boom! Instant kids recording in the kitchen.
You know that thing on a movie set where the director yells “Roll Film!” and “Action!” There is another voice between those two. “Speed!” That’s the sound lady. Without her you can all go home. Don’t mess with the sound lady.
Koz