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General Category => Demos => Topic started by: BSC on 18:44, 21 November 20

Title: More 1-bit-engine experiments
Post by: BSC on 18:44, 21 November 20
Good news everyone!

I have been experimenting again:

https://soundcloud.com/betasoftcologne/4bit-sweeping-demo?in=betasoftcologne/sets/amstrad-cpc-music-and-experiments
Title: Re: More 1-bit-engine experiments
Post by: BSC on 21:25, 21 November 20
And here you can see a corroscope recording of it:


https://youtu.be/z_mUrv-3ebo (https://youtu.be/z_mUrv-3ebo)
Title: Re: More 1-bit-engine experiments
Post by: GOB on 17:42, 23 November 20
hi, can you explain the principle of this type of sound? Mixture of two "curves"?
Title: Re: More 1-bit-engine experiments
Post by: BSC on 22:35, 23 November 20
hi, can you explain the principle of this type of sound? Mixture of two "curves"?

It's actually a mix of 4 oscillators, each 1 Hz away from the next, i.e. at 400, 401, 402 and 403 Hz.
They start beating because the peaks keep wandering relative to another. I also change the "waveform"
in between, i.e. the tone envelope representing high and low and each waveform is played at 3
different, increasing frequencies

Here's a great (albeit a bit long) video by the great guys at Khan Academy explaining the beating effect:

https://www.khanacademy.org/science/high-school-physics/x2a2d643227022488:waves/beats-and-interference-of-sound-waves-2/v/beat-frequency
Title: Re: More 1-bit-engine experiments
Post by: GOB on 23:46, 23 November 20
Thank you :)
Title: Re: More 1-bit-engine experiments
Post by: BSC on 01:18, 01 December 20
And even more! I love those harsh sounds never heard before on the CPC :)

https://soundcloud.com/betasoftcologne/cocio-and-finsprit-6-channel-preview