User manual IZOTOPE ANR-B

[. . . ] ANR-B Adaptive Realtime Noise Reduction USER'S GUIDE ABOUT IZOTOPE ANR-B Thank you for purchasing iZotope ANR-B Adaptive Realtime Noise Reduction. ANR-B is the first product of its kind--it features advanced new algorithms that can recognize noise and suppress it in realtime. ANR-B is designed to clean up call-ins, on-location interviews, noisy studio feeds and any audio source that suffers from broadband noise, tonal noise and phone line artifacts. We believe that ANR-B will change the way you work by taking care of the tedious process of noise removal for you, without requiring constant input. [. . . ] When using Link mode, turning one suppression knob will simultaneously adjust the suppression level of the other channel. Noise Reduction Modes There are two primary methods of removing noise with ANR-B. Manual mode allows the user to define a noise profile using a noise-only audio sample, and can yield better quality when working with non-spoken content like music. You can toggle between these modes with the "Adapt" button on each channel. Adapt Mode In this mode, the noise reduction algorithm is always adapting and re-evaluating what is noise in real time in the incoming signal. Therefore, as the noise profile of the incoming audio changes, the algorithm adapts to it. NOTE: Tap the Train button once and ANR-B will capture a noise profile for about one second. If you hold down the train button, ANR-B will continue capturing the noise profile until you let go of the button. If the noise is changing and not stable, holding the Train button longer may increase the accuracy of the suppression. Training in Adapt mode You can also, if you wish, use the Train button to capture a noise profile while in Adapt mode, but this is not required. When in adapt mode, the noise reduction algorithm will use the trained profile as a starting point, but it will continue to listen to incoming audio and vary the noise profile as necessary. Using Training while Adapt is enabled may allow you to remove a new noise source more quickly than waiting for the automatic detection. iZotope ANR-BTM User's Guide 5 Metering Each channel has several meters that provide important visual feedback: Input Meter ­ Shows the level (in dBFS) of the source audio. Output Meter ­ The output meter shows the level (in dBFS) of audio after being processed by ANR-B. Suppression Meter ­ This meter shows how much noise is being attenuated (in dB). The suppression meter's scale is from 0 to 20 dB, and it reads downward. Bypass and Residual Controls The Bypass and Residual buttons are useful for critical listening and fine-tuning of the noise reduction process. You may find that these controls help you set the suppression level to get the most transparent noise reduction possible. Bypass - Engaging the bypass button allows you to monitor the original audio signal with no noise suppression being applied. This is useful for comparing the processed signal to the noisy signal. Residual - The residual button lets you hear only the noise that the noise suppression algorithm is removing. You can use this feature to hear if there is any non-noise material being removed by the process. This is a momentary switch--when you let go of the switch, ANR-B will operate in its normal mode. NOTE: If you hear a lot of non-noise material in Residual mode, you may want to use a less aggressive suppression setting, or you may want to try Manual mode for the program material in question. iZotope ANR-BTM User's Guide 6 ANR-B MENUS AND OPTIONS The Setup Menu To enter the Setup Menu, press the Setup button. [. . . ] EXCLUSIONS AND LIMITATIONS This Limited Warranty does not apply to any non-Vendor hardware products or any software, even if packaged or sold with Vendor hardware. Manufacturers, suppliers, or publishers, other than Vendor, may provide their own warranties to the end user purchaser, but Vendor, in so far as permitted by law, provides their products "as is". Software distributed by Vendor with or without the Vendor brand name (including, but not limited to system software) is not covered under this Limited Warranty. Refer to the licensing agreement accompanying the software for details of your rights with respect to its use. [. . . ]