Mastering Tool Kit Parameter Functions

Expander

This expands the dynamic range at a fixed ratio.

On/Off

OFF, ON

This setting turns the expander on/off.

 

Lo Thres

-80–0 dB

This sets the volume level at which the lower-range expander goes into effect.

Lo Ratio

1:1.00–1:16.0, 1:INF

This sets the ratio of increase in output of the lower range when the input level falls below the Lo threshold level.

Lo Attack

0–100 ms

This sets the time it takes for the lower-range expander to go into effect once the input level falls below the Lo threshold level.

Lo Release

50–5000 ms

This sets the time it takes for the lower-range expander effect to stop once the input level exceeds the Lo threshold level.

Mid Thres

-80–0 dB

This sets the volume level at which the midrange expander goes into effect.

Mid Ratio

1:1.00–1:16.0, 1:INF

This sets the ratio of increase in output of the midrange when the input level falls below the Middle threshold level.

Mid Attack

0–100 ms

This sets the time it takes for the midrange expander to go into effect once the input level falls below the Middle threshold level.

Mid Release

50–5000 ms

This sets the time it takes for the midrange expander effect to stop once the input level exceeds the Middle threshold level.

Hi Thres

-80–0 dB

This sets the volume level at which the upper-range expander goes into effect.

Hi Ratio

1:1.00–1:16.0, 1:INF

This sets the ratio of increase in output of the upper range when the input level falls below the Hi threshold level.

Hi Attack

0–100 ms

This sets the time it takes for the upper-range expander to go into effect once the input level falls below the Hi threshold level.

Hi Release

50–5000 ms

This sets the time it takes for the upper-range expander effect to stop once the input level exceeds the Hi threshold level.

Compressor

This compresses the overall output signal when the input volume level exceeds a set value.

On/Off

OFF, ON

This parameter turns the compressor effect on/off.

Lo Thres

-24–0 dB

This sets the volume level at which the lower-range compressor goes into effect.

Lo Ratio

1:1.00–1:16.0, 1:INF

This sets the ratio of suppression of the lower-range output when the input level exceeds the Lo threshold level.

Lo Attack

0–100 ms

This sets the time it takes for the lower-range compressor to go into effect once the input level exceeds the Lo threshold level.

Lo Release

50–5000 ms

This sets the time it takes for the lower-range compressor effect to stop once the input level falls below the Lo threshold level.

Mid Thres

-24–0 dB

This sets the volume level at which the midrange compressor goes into effect.

Mid Ratio

1:1.00–1:16.0, 1:INF

This sets the ratio of suppression of the midrange output when the input level exceeds the Middle threshold level.

Mid Attack

0–100 ms

This sets the time it takes for the midrange compressor to go into effect once the input level exceeds the Middle threshold level.

Mid Release

50–5000 ms

This sets the time it takes for the midrange compressor effect to stop once the input level falls below the Middle threshold level.

Hi Thres

-24–0 dB

This sets the volume level at which the upper-range compressor goes into effect.

Hi Ratio

1:1.00–1:16.0, 1:INF

This sets the ratio of suppression of the upper-range output when the input level exceeds the Hi threshold level.

Hi Attack

0–100 ms

This sets the time it takes for the upper-range compressor to go into effect once the input level exceeds the Hi threshold level.

Hi Release

50–5000 ms

This sets the time it takes for the upper-range compressor effect to stop once the input level falls below the Hi threshold level.

*With the compressor, the level is automatically adjusted to the optimum setting according to the threshold (Thres) and ratio (Ratio) settings. In addition, since lengthening the attack (Attack) setting may result in distortion, a buffer (margin) of -6 dB is provided. Adjust the mixer (Mix) level as needed.

Section 4

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Roland BR-864 owner manual Expander, 129
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BR-864 specifications

The Roland BR-864 is a compact and powerful digital recorder designed for musicians, songwriters, and audio producers seeking high-quality recording solutions without the complexity of larger studio equipment. With its user-friendly interface and impressive features, the BR-864 stands out as a versatile tool for capturing music ideas, practice sessions, and full-fledged recordings.

At the heart of the BR-864 is its ability to record up to eight tracks simultaneously. This is a significant advantage for musicians who often find themselves layering various instruments and vocals. The device features a built-in high-quality microphone and two combo input jacks, allowing for easy connectivity of guitars or microphones. Additionally, the BR-864 supports both XLR and 1/4-inch inputs, providing flexibility for a variety of sound sources.

One of the standout technologies of the BR-864 is its 16-bit/44.1kHz uncompressed audio quality. This ensures that recordings maintain their clarity and detail, making it suitable for both studio and live settings. Musicians can easily engage with the onboard effects including reverb, delay, and compression, which helps enhance the overall sound without needing to rely on external equipment.

The BR-864 also features a built-in metronome and a variety of rhythm patterns to aid in practice and songwriting. This feature is particularly beneficial for musicians looking to develop their timing and arrangement skills. The device is equipped with a multi-track editing feature, allowing users to cut, copy, paste, and loop tracks with precision, resulting in a polished final product.

For ease of use, the BR-864 includes an intuitive LCD screen display, which helps users navigate its numerous features quickly. The onboard effects and editing tools are accessible via a series of simple buttons, which is especially advantageous for those who may not be technically inclined.

The unit is powered by batteries or an AC adapter, making it portable and ideal for taking to gigs or rehearsals. Its robust design ensures durability, allowing it to withstand the rigors of regular use. The BR-864 also provides USB connectivity, enabling easy file transfer to computers for further mixing, editing, or sharing.

Overall, the Roland BR-864 combines portability, functionality, and high-quality sound into a single unit that caters to the needs of modern musicians. Its wide range of features makes it an ideal choice for anyone looking to create, edit, and produce music effectively and efficiently.
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