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ALC892 is a Realtek High Definition Audio Codec (also known as a sound card) commonly found on motherboards. It’s a 10-channel (8+2) device that supports 7.1 surround sound and stereo output, along with features like content protection for high-quality audio playback from Blu-ray and other sources. It also includes integrated microphone arrays with features like Acoustic Echo Cancellation and Noise Suppression.
Here’s a more detailed breakdown:
High Definition Audio:
The ALC892 is designed to handle high-definition audio, including formats like DVD audio, Blu-ray, and HD DVD.
Multiple Channels:
It can support up to 10 channels of audio, allowing for 7.1 surround sound and an additional stereo output for front panel connections.
Content Protection:
The codec includes Realtek’s proprietary content protection technology, which ensures that high-quality audio can be played back without being degraded.
Microphone Support:
It features two stereo ADCs and one stereo digital microphone converter, along with support for microphone arrays with advanced features like Acoustic Echo Cancellation (AEC), Beam Forming (BF), and Noise Suppression (NS).
Analog I/O:
All analog inputs and outputs can be re-tasked, and headphone amplifiers are integrated into several output ports.
SPDIF:
The ALC892 supports 16/20/24-bit SPDIF input and output with up to 192kHz sample rates, facilitating connections to other audio devices like digital decoders and speakers.
HDMI:
It features a secondary SPDIF-OUT output for connecting to an HDMI transmitter.
Comparison with ALC887:
While both ALC887 and ALC892 support 192kHz sample rates, the ALC892 has additional features like content protection and a better codec for handling high-definition audio, according to a forum post on Linus Tech Tips.
Motherboard Integration:
The ALC892 is often found on motherboards as the integrated audio solution, particularly on budget-friendly options.