Professional Audio & Video Solutions

Audio Precision Enhances Electro-Acoustic Testing

Audio Precision Enhances Electro-Acoustic Testing

Audio Precision, the recognized standard in audio test, announced the availability of version 4.2 of their APx500 audio test software. AP's latest software release delivers a series of new features focused on electro-acoustic and production test environments, including customizable sub-sequences, input EQ, and a dedicated production test mode.

    Powerful Features for Production Test and Electro-Acoustics

  • apabilities being introduced with version 4.2 of APx500 test software are primarily focused on electro-acoustic testing—loudspeakers, headphones and microphones—and production test scenarios. APx's built-in automation engine, the Sequencer, has been enhanced to support multiple sequences in a single project and sequence looping. The new release also permits the creation of customizable sub-sequences for applications such as 'golden unit' testing or microphone calibration. Users testing loudspeakers and microphones can now apply an equalization curve to an input signal. The input curve can be edited, exported, imported and selectively applied to available input channels. Addressing the unique needs of manufacturing environments, version 4.2 adds a dedicated production test mode. Now, a test system administrator can create device-specific projects then put the system into password-protected production mode. From that point on, system operators have a simplified interface that allows for project selection, test activation and report generation, but does not permit project modification or parameter changes.

  • Production Test

  • One or more sequences can be designated as Production Test sequences. A Production Test sequence is designed by an administrator or supervisor, who possesses the APx project password. One or more of the project sequences is designed to be run on the production floor by an operator, who does not have the password and works from a restricted menu, locked out from modifying the project. Menu design, prompts and other interaction with the operator are facilitated in the Edit Sequences dialog. System and user variables can be used in prompts, responses and file paths. Sequence statistics and variable lists can be saved and reported. See Variables, next.

Related Solutions

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  • Audio Precision Adds STI (STIPA) Measurement Capability to APx500 Software

    Quantifying the Intelligibility of Speech

    Developed as a method for quantifying the intelligibility of speech with respect to a transmission medium—for example a room, an intercom system, a radio link—STI is an objective measure that provides a single rating between 0 and 1 that predicts the likelihood of syllables, words and sentences being comprehended within the intended medium. The rating is broken down into qualification bands ranging from “bad” (0 to 0.36), to “excellent” (0.75 to 1.0).

  • Lip-Sync The time alignment of the audio relative to the video

    I think you know the problems when audio and video are not in sync, what to do?

    We can give you the figure when you are out of sync to get it back easy.

    In both professional and consumer television and A/V systems, divergent audio and video signal paths and the delay inherent in digital processing provide many opportunities for the program sound and picture to fall out of synchronization

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