IDT has introduced a new high definition, low power PC audio codec designed to help bring home-entertainment-level audio fidelity to enterprise desktop and notebook systems, while supporting mobile user capabilities such as advanced processing for voice over Internet protocol (VoIP).
The IDT 92HD71B features four stereo channels, and is compatible with the Intel high definition (HD) audio interface. The audio device provides stereo 24-bit resolution with sample rates up to 192 kHz. The dual digital SPDIF outputs enable simple integration with multichannel consumer entertainment equipment, including audio integration with system HDMI video. The codec incorporates proprietary technology to achieve digital to audio conversion signal-to-noise ratio fidelity in excess of 100 dB. It also includes extensive optimisations to minimise unwanted audio artefacts, such as ‘pops’, during system power-up.
In addition to high-fidelity, low power devices, the IDT PC audio solution provides a flexible, easy-to-customise graphical user interface (GUI), an audio effects designer program enabling system designers to optimise their system characteristics, and numerous audio processing capabilities required for home entertainment, VoIP and other audio computing applications. As a result, these audio solutions enable OEM customers to maximise battery life, offer advanced usage models for PC audio, provide their end-customers the ability to personally manage the quality of their audio experience, and achieve high levels of overall audio fidelity, compatible with the most stringent Windows Logo Program fidelity requirements.
The 92HD71B and software supports full-duplex stereo audio and simultaneous VoIP telephony by supporting multiple, independent audio streams. Additionally, the optimised and flexible power management, including driver optimisations and specialised audio circuitry mitigates pop/click sound anomalies, offering a smoother audio experience. The audio solution provides a mono output for laptop sub-woofer and support for 1,5 V and 3,3 V HD audio signalling with run-time selection to enable a wide range of system designs.
Additional features include:
* Digital microphone inputs, enabling small form-factor high fidelity digital microphones, optimised for VoIP telephony and voice recognition.
* High performance analog mixer option, enabling flexibility for mixing audio sources into a single integrated stream.
* Integrated headphone amplifier to eliminate external circuitry.
* Jack insertion detection to enable dynamic, advanced user event detection and management.
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