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Broadcast Audio Standards

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Audio Metering

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The visual representation of audio levels. Essential in broadcast to maintain consistent levels and avoid over-modulation.

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Peak Normalization

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The process of adjusting the audio signal so the maximum peak hits a certain level, crucial to prevent distortion and maintain consistent audio levels across broadcasts.

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Compression

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Reduces the dynamic range of audio, ensuring the loud and soft parts of a broadcast are more even in volume. Important to prevent large volume jumps for listeners.

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Stereo Imaging

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Involves creating a sense of space and positional cues in two-channel audio. It's important for an immersive and natural-sounding broadcast.

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Sample Rate

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The number of samples of audio carried per second. Higher sample rates can capture higher frequency content, important for the fidelity of the broadcasted audio.

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Bit Depth

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Determines the dynamic range and signal-to-noise ratio of a digital audio signal. Higher bit depths are important in broadcast for capturing subtle nuances and reducing quantization noise.

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Audio Leveling

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The process of adjusting the levels of different audio elements for consistency. Key in broadcast to ensure balance and prevent sudden jumps in volume.

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Frequency Response

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Describes the range of frequencies a broadcast system can reproduce. Important for ensuring audio quality and intelligibility of the broadcast.

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Phase Correlation

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Measures the time difference and alignment between stereo channels. Crucial for ensuring a coherent soundstage and avoiding phase cancellation in broadcasts.

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Dynamic Processing

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Encompasses techniques like compression and expansion to manage the dynamic range of an audio signal, pivotal for a smooth listening experience in broadcasts.

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Audio Codecs

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Used for compressing and decompressing digital audio data. Essential in broadcasting for managing bandwidth and storage while maintaining audio quality.

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Loudness Standards

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Refers to the accepted average audio levels to ensure consistent sound across different platforms and programs. It is important to prevent viewer fatigue and meet regulatory compliance.

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Signal-to-Noise Ratio (SNR)

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The ratio between the desired signal and the background noise, which is vital for maintaining audio clarity and reducing listener fatigue in broadcast environments.

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Broadcast Mixing

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The art of balancing and combining multiple audio sources live or in post-production. Integral for delivering a polished and professional sounding broadcast.

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Acoustic Treatment

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Refers to the modification of an environment to control sound reflections and reverberations. It is important in broadcast studios to ensure clear and accurate audio reproduction.

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