[linux-audio-dev] Amplitude modulation with LADSPA

[Lars Luthman]

On Mon, 2006-03-13 at 05:11 +0300, Andrew Gaydenko wrote:
> The aim is: 
> 
> - to generate high frequency sine (say, 1-10KHz - carrier),

The "Sine oscillator" in the LADSPA toolkit (1046/sine_fcaa)

> - to modulate it's amplitude with low frquency signal (say, in 1-10Hz range)

The "Sine oscillator" in the LADSPA toolkit (1047/sine_fcac)

> - to pass this modulated signal through some device,
> - to demodulate it, and, as a result,
> - to get that 1-10Hz signal.

Not sure about this. Maybe use the "Frequency tracker" in swh-plugins
(1418/freqTracker) and subtract the known frequency of your high
frequency sine from the result?

-- 
Lars Luthman
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