How to create a sound like this?

Hello people. I'm new to this forum, and I need help on that: How could I create this sound? I have a reference image that could help:

[Image Analyst]

The image didn't come through. Try again. Why don't you just record the sound from the video. Windows snip and sketch program will let you do that.

[Augusto]

Oh ok. Wait a second.

[Star Strider]

An hour later, still nothing ...

[Augusto]

Yeah bro, I'm late lol. Here it is tho:

(P.S: I zipped the audios bcuz I couldnt upload WAV.)

I need help on making these 2 sounds: The siren on the background, and these whistling sounds,

[Sam Chak]

Great. Do you want to remake the identical audio waves? Or, just want to find the frequency spectrum and apply the redshift filter to somewhat mimic the Doppler effect?

[Image Analyst]

Why do you need to create it with MATLAB code rather than just record it from an existing video or download a similar sound? Go here to search for similar sounds:

FindSounds.com - Search the Web for Sounds

[Augusto]

Yes Sam Chak, i want to recreate the same audio waves.

Answer 1

[Star Strider]

Firstt, look to see what their spectrograms reveal —

uz = unzip('examples.zip')

uz = 1x2 cell array
    {'siren_sound_example.wav'}    {'whistle.wav'}

for k = 1:numel(uz)
    fn = strrep(string(uz{k}), "_", "\_");
    [wavvec,Fs] = audioread(uz{k});
    figure
    tiledlayout(2,1)
    nexttile
    pspectrum(wavvec(:,1),Fs,'spectrogram')
    colormap(turbo)
    title("Left Channel")
    nexttile
    pspectrum(wavvec(:,2),Fs,'spectrogram')
    colormap(turbo)
    title("Right Channel")
    sgtitle(fn)
end

●

for k = 1:numel(uz)
    fn = strrep(string(uz{k}), "_", "\_");
    [wavvec,Fs] = audioread(uz{k});
    figure
    tiledlayout(2,1)
    nexttile
    [sp,fp,tp] = pspectrum(wavvec(:,1),Fs,'spectrogram');
    waterfall(fp,tp,sp')
    set(gca,XDir="reverse",View=[60 60], ZScale='log')
    colormap(turbo)
    ylabel("Time (s)")
    xlabel("Frequency (Hz)")
    title("Left Channel")
    nexttile
    [sp,fp,tp] = pspectrum(wavvec(:,2),Fs,'spectrogram');
    waterfall(fp,tp,sp')
    set(gca,XDir="reverse",View=[60 60], ZScale='log')
    colormap(turbo)
    ylabel("Time (s)")
    xlabel("Frequency (Hz)")
    title("Right Channel")
    sgtitle(fn)
end

These are going to be a challenge to synthesize. I’ll give it some thought.

.