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Altera_Forum
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17 years ago

Tone Generation

Hi I am facing problem regarding Generation of tones (like Busy, Beap, Dial tone), if any help regarding this.
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

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Hi,

Yes same Logic I am using, Now I am trying to generate base band data for particular tone using below equation in matLab and Generated Base band data is taken in ROM and data is accessed with SAMPLING frequency(Fs).

tone_data=sin(2*pi*row_freq*time_period)+sin(2*pi*col_freq*time_period)

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I will follow that by(for 14 bits signed):

tone_data = round((2^13-1) * tone_data/max(abs(tone_data)));

also make sure of phase continuity i.e. the last value of tone_data must wrap-up correctly with first data.

kaz