Digital Audio Basics “Any signal can be completely reconstructed from samples.” - Harry Nyquist Know your prefixes! Giga (G) – billion; Mega (M) – million; kilo (k) – thousand Bit (b) – a binary digit Byte (B) – 8 bits Word – can be several bytes (wordlength), usually measured in bits
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“Any signal can be completely reconstructed from samples.” - Harry Nyquist
TYPICAL SIGNAL FLOW IN A DIGITAL AUDIO CHAIN
Often the computer acts as the ADC, Digital Recorder, and DAC
A computer soundcard can be internal or external. Many external soundcards use Firewire or USB. All computer soundcards have ADC’s and DAC’s built into them. Some even have built-in preamps.