FM-modulation but just not: frequencies serial

Using Nyquist scripts in Audacity.
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Suru
Posts: 9
Joined: Thu Feb 28, 2019 8:59 am
Operating System: Windows 10

FM-modulation but just not: frequencies serial

Post by Suru » Thu Feb 28, 2019 12:10 pm

Just found FM-modulation script, and it looks ok. Some limits. "Base freq" and then "modulating, original signal". Deviation is quite little. But, is excelent.

Just now working with quite simple "ring tone", it is as phone call. "Dual tone", 500 Hz, 1kHz and 10 Hz change between signals. Several times I make it only way I know: "create tone 1kHz, lenght eg. 100 ms", "create tone 500 Hz, 100 ms" and then manually copypaste. FM-modulation make this about... about. "Base freq 500 Hz, modulate with 10 Hz square etc"...

Maybe script is also possible, but how? this type...
Line1: create 500 Hz sine, amplitude 0,8, lenght 100 ms
Line2: create 1 kHz sine, amplitude 0,8, lenght 100 ms
(Line 3: create 1200 Hz sine, amplitude 1, lenght...)
(Line 4...)
Repeat until 3000 ms

Is this possible and how?

steve
Site Admin
Posts: 81649
Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: FM-modulation but just not: frequencies serial

Post by steve » Thu Feb 28, 2019 12:59 pm

Perhaps this "DTMF Tones" plug-in is what you're looking for: https://wiki.audacityteam.org/wiki/Nyqu ... DTMF_Tones
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