Free Download APU Software TrueGain v5.7.1 | 221.9 MBAPU TrueGain is an equal-loudness compensated gain control plug-in designed to maintain the perceived tonal balance of an audio mix when the monitoring level changes. It combines gain adjustment with frequency-response compensation so that changes in listening level can be evaluated while preserving the intended perceptual balance.
The plug-in provides dedicated presets for compensated gain control and translation checking. Compensated Gain Control presets automatically adjust the frequency response as the gain control is changed, while Translation Check presets allow users to simulate different listening levels without changing the physical output level of monitors or headphones.
TrueGain includes equal-loudness FIR filters based on ISO 226:2023 and ISO 226:2003, along with a Fletcher-Munson contour based on the original 1933 paper. It also provides configurable smoothing, selectable filter types, real-time spectrum analysis, and reference SPL calibration for more accurate monitoring workflows.
APU TrueGain is designed to help audio professionals evaluate and control tonal balance across different listening levels. Its compensated gain processing adjusts the frequency response as gain changes, allowing the perceived balance of a mix to remain consistent while monitoring at different levels.
The Translation Check presets provide a way to audition how a mix may be perceived at quieter or louder listening levels without physically changing the volume of the monitoring system. This can help identify changes in bass perception or vocal harshness that may become apparent when the listening level changes.
The plug-in uses FIR filters implementing ISO 226:2023 and ISO 226:2003 equal-loudness contours. A Fletcher-Munson option is also available for users who want to work with the
equal-loudness contour derived from the 1933 research.
Key Features- Apply equal-loudness compensated gain control to audio mixes.
- Maintain perceived tonal balance when changing listening levels.
- Use Compensated Gain Control presets for automatic frequency-response compensation.
- Use Translation Check presets to simulate different listening levels.
- Evaluate how bass perception changes at different loudness levels.
- Check vocal character at quieter listening levels.
- Use FIR filters based on ISO 226:2023 equal-loudness contours.
- Use FIR filters based on ISO 226:2003 equal-loudness contours.
- Apply the Fletcher-Munson contour based on the original 1933 paper.
- Use filters validated across supported sample rates according to the specified tolerance requirements.
- Apply smooth interpolation to gain and spectral adjustments.
- Configure smoothing times to control processing responsiveness.
- Choose between linear-phase and minimum-phase filter types.
- Analyze frequency content with the integrated real-time spectrum analyzer.
- Configure FFT sizes, window types, and time averaging.
- Display frequencies using linear, logarithmic, or musical-note scales.
- Adjust the spectrum analyzer dB range and use automatic zoom.
- Calibrate the plug-in using an external SPL meter for a specific listening environment.
- Set a reference SPL level for typical listening conditions when an external SPL meter is unavailable.
- Use presets covering common listening levels alongside the reference SPL control.
Why Choose APU TrueGainAPU TrueGain is suited to mixing and monitoring workflows where perceived tonal balance needs to be evaluated across different listening levels. Its compensated gain and translation-checking modes provide a controlled way to examine how frequency perception changes as monitoring loudness varies.
The combination of ISO equal-loudness contours, Fletcher-Munson processing, configurable smoothing, filter-phase options, spectrum analysis, and reference SPL calibration provides detailed control for loudness-dependent monitoring and mix evaluation.
System RequirementsAPU TrueGain requires a compatible system capable of running the APU Software plug-in. Specific operating system, processor, memory, and hardware requirements were not provided in the source information.
Home Pagehttps://apu.software/truegain/Product Information- Software Name: APU Software TrueGain
- Version: v5.7.1
- Languages: English
- License type: Full Version
- File Size: 221.9 MB
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