Upward tuning reference

Selects the PRF’s ‘Upward long’ interval tuning reference. 1-31 = specified in semitones, 0 = defaults to octave. The ‘Upward short’ interval tuning reference is fixed at a minor third (3 semitones).

Downward tuning reference

Selects the PRF’s Downward long interval tuning reference. 1-31 = semitones, 0 = defaults to octave. The ‘Downward short’ interval tuning reference is fixed at a minor third (3 semitones).

Velocity -> Time

Selects the amount of portamento time modulation determined by note-on velocity (0-127). 0 = none, 127 = max. With this parameter set to a value other than 0, lower velocities will result in a slower slide rate and higher velocities will result in a faster slide rate.

Velocity Response

Selects the velocity response for the target note (0-127). With this parameter set to 0, the target note (destination of slide) will sound with the same velocity as the original note. With this parameter set to 127, the target note is subject to the full rage of the instruments velocity response. 0 = none (original), 127 = max (full velocity response).

Velocity Pullback

Determines the degree to which the PRF filter response is reduced (flattened) based on incoming note-on velocity. 0 = no filter pullback, 127 = full pullback range. With this parameter set to 127, an incoming note velocity of 127 will use the full value of the PRF filter coefficients while lower velocites result in a flatter filter response.

Slide Curve type

Selects the portamento slide curve type, either nonlinear bell-type(acoustic) or linear (synth).

Note: Because GigaStudio streams samples directly from your hard drive, transposing a sample more than three octaves above it’s root can cause unexpected results…

PRF Intervals and Filter Coefficients

There are four filter sets associated with a PRF profile which correlate to pitch intervals: Upward Long, Upward Short, Downward Long and Downward short. Each of these interval sets contains four parameters (Fc, Q0, Q0H, V0) which are explained below. As a sample is transposed up and down the keyboard, the PRF continuously tracks the samples pitch and morphs between the appropriate interval sets.

Upward Long – Controls the target filter settings for the Upward Long Interval as defined by the ‘Upward Tuning Reference’ value.

Upward Short – Controls the target filter settings for the Upward Short Interval which is fixed at three semitones.

Downward Short – Controls the target filter settings for the Downward Short Interval which is fixed at three semitones.

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Tascam 4 Upward tuning reference, Downward tuning reference, Velocity Time, Velocity Response, Velocity Pullback
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4 specifications

The Tascam 4, also known as the Tascam Portacapture X8, is an advanced portable audio recorder that brings a range of professional features, technologies, and characteristics designed for musicians, filmmakers, and content creators. This versatile device is equipped to capture high-quality audio in various settings, whether for music production, field recording, or podcasting.

One of the standout features of the Tascam 4 is its dual XY and AB microphone configuration. This allows users to choose between different stereo recording techniques, providing flexibility and creativity in sound capture. The XY arrangement is perfect for capturing live performances or ambient sounds, while the AB configuration is great for recording wider soundscapes. Additionally, the built-in microphones are of high quality, ensuring that recordings maintain clarity and fidelity.

The Tascam 4 offers up to eight tracks of simultaneous recording, giving users the ability to capture multiple audio sources at the same time. This is particularly useful for music recording sessions, where different instruments and vocals can be isolated on separate tracks. It supports various file formats, including WAV and MP3, with sample rates up to 24-bit/192kHz, ensuring professional-level audio quality.

For more advanced users, the Tascam 4 includes features such as multi-track overdubbing and built-in effects like reverb, which allow for creative sound manipulation. The user-friendly touchscreen interface makes navigating through settings and functions straightforward, while the customizable faders and buttons give users quick access to frequently used controls.

Another significant technological aspect of the Tascam 4 is its USB audio interface capability. This feature lets users connect the device to a computer, making it an effective solution for home studios. It can be used for live streaming or as a high-quality microphone input for podcasts and other applications.

Furthermore, the Tascam 4 is designed with durability and portability in mind. Its compact form factor and robust build make it easy to carry on location, while its battery life ensures long recording sessions without frequent recharging. Whether you're a seasoned audio professional or an aspiring creator, the Tascam 4 provides an impressive array of tools and features that make it a reliable choice for high-quality audio recording in any situation.
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