18667996. Audio Output Device with Hardware Volume Control simplified abstract (Apple Inc.)

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Audio Output Device with Hardware Volume Control

Organization Name

Apple Inc.

Inventor(s)

Hilary K. Mogul of San Francisco CA (US)

Eric J. Day of San Jose CA (US)

Hannes Breitschaedel of Vienna (AT)

Juha O. Merimaa of San Mateo CA (US)

Audio Output Device with Hardware Volume Control - A simplified explanation of the abstract

This abstract first appeared for US patent application 18667996 titled 'Audio Output Device with Hardware Volume Control

Simplified Explanation: The patent application describes a method performed by an audio source device connected to an audio output device. The method involves adjusting the volume of an audio signal, applying dynamic range compression, and then adjusting the volume back before transmitting the signal to the output device.

Key Features and Innovation:

  • Obtaining an audio signal from the source device.
  • Receiving a volume adjustment input.
  • Applying the volume adjustment to the audio signal.
  • Applying dynamic range compression to the volume-adjusted signal.
  • Reversing the volume adjustment on the compressed signal before sending it to the output device.

Potential Applications: This technology could be used in audio devices such as speakers, headphones, and sound systems to enhance the listening experience by adjusting the volume and dynamic range of the audio signal.

Problems Solved: This technology addresses issues related to maintaining consistent audio levels and improving the overall sound quality for users of audio output devices.

Benefits:

  • Enhanced audio quality.
  • Consistent volume levels.
  • Improved listening experience.

Commercial Applications: The technology could be applied in consumer electronics, professional audio equipment, and entertainment systems to provide users with a more enjoyable and consistent audio experience.

Questions about the Technology: 1. How does dynamic range compression impact the audio signal? 2. What are the potential drawbacks of applying volume adjustments to audio signals?

Frequently Updated Research: Ongoing research in audio signal processing and compression techniques may lead to further advancements in this technology, improving audio quality and user experience.


Original Abstract Submitted

A method performed by an audio source device that is communicatively coupled with an audio output device, the method includes obtaining an audio signal; receiving a volume adjustment; applying the volume adjustment to the audio signal; applying dynamic range compression on the volume adjusted audio signal; and applying an inverse volume adjustment to the compressed audio signal, where the inverse volume adjusted audio signal is to be transmitted to the audio output device.