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Altera_Forum's avatar
Altera_Forum
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17 years ago

Audio signal signed or std_logic_vector

hello i have already designed a digital voice recorder using the de2 the code that process the codec chip data is in the attachment i want now to feed the audio data to to an FFT megafun...
Altera_Forum's avatar
Altera_Forum
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17 years ago

The FFT data is interpreted as signed, but uses std_logic_vector port type, as other aritmetic Megafunctions. No scaling of FFT input required.