You can import IRs in .wav and .wir formats (supported bit-depths: 16, 24 and 32- floating point, with sample rates between 44.1kHz and192kHz). The plug-in will automatically sample-rate convert the IR to the sample rate you are working in (session sample rate is 96kHz maximum).

Note: an imported .wav is not saved. If you want to move your session to another system, you will need to include in your backup any IRs and .wav(s) you need for the session.

When importing IRs the IR-series will normalize loud peaks to –12dB. If the imported IR's peak is lower than –12, then no normalization will take place, and the IR will be imported as is. The –12dB norm is applied in order to allow some headroom for the expected peak growth and clipping that will occur when convolving a hot signal with a hot IR. This may still prove to be too high, especially when importing IRs that do not have a Direct signal. In this case, it is recommended to scale the IR level using the Direct/ER/Tail gains. A recommended approach is to try to reach the point where the perceived loudness of the fully wet signal is similar to that of the fully dry signal.

Depending upon the channel component of the plug-in, IR-series will expect a certain number of channels to be imported. If you select an IR with fewer channels than expected, for example loading a stereo file to the IR-series Full Stereo (4 convolutions), the result will be another dialog box saying, “IR requires 2 more channels. Please select a file.” You can create some wild sound effects by loading in completely different impulse files.

If the user chooses to cancel rather than open more files, the IR-series will use what it has and multiply it for the missing channels. The IR-1’s graph screen will show the following message: “IR was loaded using fewer files”.

IR Info and Properties

IR Properties are stored in the IR-1presets and are loaded along with the IR. Some of the properties are fixed and are shown in the top left pane (IR info) of the display. Properties that can be modified using the Plug-In’s controls are displayed beneath the fixed properties section (IR properties).

The IR info pane shows:

Waves IR-1 software guide page 36 of 40

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Waves IR-L, IR-360, IR-1 manual IR Info and Properties
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IR-360, IR-L, IR-1 specifications

Waves is a trusted name in the audio processing industry, and its range of plugins has consistently set the standard for professional audio production. Among its extensive lineup, the Waves IR-1, IR-L, and IR-360 are renowned for their advanced convolution reverb capabilities, delivering studio-quality reverb effects that enhance any sound environment.

The Waves IR-1 is a high-quality convolution reverb plugin that offers exceptional sound quality and versatility. Featuring a wide array of impulse responses derived from actual acoustic spaces, the IR-1 allows users to recreate the sound of various environments, from lush concert halls to intimate rooms. One of its standout features is the ability to manipulate the reverb tail, making it possible to fine-tune the duration and character of the effect. The IR-1 also includes controls for early reflections, damping, and pre-delay, enabling users to craft a reverb that perfectly complements their mix.

The Waves IR-L is a more streamlined version of the IR-1, designed for professionals who demand high-quality reverb but prefer a simplified interface. While it retains the core convolution technology and impulse response library of the IR-1, the IR-L focuses on ease of use, allowing for quick adjustments without sacrificing sound quality. One innovative feature is its “scalable” plugin structure, which lets users modify the plugin interface size based on their screen space. This makes IR-L ideal for both studio work and live sound applications.

Waves IR-360 is designed for immersive audio and 3D sound environments. By providing surround sound capabilities, it enables users to place sounds in a 360-degree space, making it ideal for film scoring and virtual reality audio. Like its predecessors, the IR-360 includes a rich selection of impulse responses, but it also integrates features tailored for spatial audio creation. This includes customizable parameters for azimuth and elevation, allowing precise control over sound placement in three-dimensional space. Additionally, the IR-360 supports various surround formats, making it versatile for multiple audio production contexts.

In summary, Waves IR-1, IR-L, and IR-360 offer powerful and innovative convolution reverb solutions, each designed with specific user needs in mind. With their advanced capabilities, extensive impulse response libraries, and user-friendly interfaces, these plugins cater to a wide range of audio production applications, setting new standards in reverb technology. Whether for music production, post-production, or immersive audio experiences, these tools are essential for achieving high-quality soundscapes.
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