The ITU-R BS.1770 standard recommends a loudness level of -16 LUFS for streaming services to ensure consistency and avoid excessive loudness.

Expansion is not typically used in mastering for streaming services as it increases the dynamic range, which can lead to perceived loudness inconsistencies.

Dithering is a process of adding low-level noise to the audio signal before quantization to reduce the audible effects of quantization noise.

WAV is a lossless audio format that is not commonly used for streaming services due to its large file size. MP3, AAC, and FLAC are more commonly used due to their smaller file sizes and support for lossy and lossless compression.

Mastering for streaming services aims to achieve a consistent loudness level, optimize audio quality for playback on various devices, and ensure compatibility with different streaming services.

Ratio is not a factor to consider when choosing a limiter for mastering. Attack time, release time, and threshold are the primary parameters that determine how the limiter affects the audio signal.

Multiband compression allows for precise control over the dynamics of different frequency ranges, enabling the mastering engineer to address specific issues or enhance certain aspects of the audio.

Expansion is not used to increase perceived loudness. Compression, limiting, and saturation are commonly used techniques for increasing perceived loudness.

24 bits is the recommended bit depth for mastering audio for streaming services as it provides a good balance between audio quality and file size.

Expansion is not commonly used to control sibilance. De-essing, multiband compression, and equalization are more effective techniques for reducing harsh sibilance.

A stereo imager allows the mastering engineer to widen or narrow the stereo field, adjust the balance between left and right channels, and create a more immersive listening experience.

Expansion is not used to enhance the low end of an audio track. Subharmonic synthesis, multiband compression, and equalization are more effective techniques for boosting the low frequencies.

A limiter is used in mastering to prevent clipping and distortion, control the overall loudness of the audio, and increase the perceived loudness of the audio.

Expansion is not used to add warmth to an audio track. Tube saturation, tape emulation, and multiband compression are more effective techniques for achieving a warmer sound.

A high-pass filter is used in mastering to remove unwanted low frequencies, reduce muddiness and improve clarity, and create a more open and airy sound.