Digital Signal Processing (DSP) Laboratory Experiment 7: Audio Signal Processing

These flashcards cover key terms and concepts related to digital signal processing and audio effects.

Digital Signal Processing (DSP)

A methodology for manipulating audio or other signals to enhance or analyze them.

Audio Signal Processing

The techniques used to manipulate, enhance, or analyze audio signals.

Low-Pass Filter (LPF)

A filter that allows low-frequency signals to pass while attenuating high-frequency signals.

Cutoff Frequency (fc)

The frequency beyond which the filter attenuates signal components.

Noise Reduction

The process of removing high-frequency noise from audio signals to improve clarity.

Equalization

The adjustment of specific frequency bands to enhance or suppress audio elements.

Echo Effect

A signal processing technique that creates a delayed repetition of sound, simulating natural reflections.

Flanger Effect

An audio effect that creates a sweeping sound by introducing a time-varying delay.

Reverberation (Reverb)

An effect that simulates the natural reflection of sound waves in enclosed spaces.

Butterworth Filter

A type of filter used to achieve a smooth frequency response.

Bandpass Filters

Filters that allow a specific range of frequencies to pass while attenuating frequencies outside that range.

Sine Wave Modulation

A technique used to vary a delay in audio processing by applying a low-frequency sine wave.

MATLAB

A programming environment widely used for numerical computing and audio signal processing.

Gain Factor (a)

A coefficient that adjusts the amplitude of a signal in audio processing.

Waveform Analysis

The visual representation of an audio signal's amplitude over time.

Sampling Frequency (fs)

The number of samples of audio carried per second.