Dual-Host Audio Interface with Real-Time Vocal Pitch Correction
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Solution Overview
Problem
Traditional audio interfaces lack multi-host redundancy, leading to potential interruptions in audio signal flow and require complex external pitch correction, which introduces latency and complexity, failing to meet the demands of professional applications like live performances and broadcast environments.
Innovation Solution
An audio interface system with dual host connections, real-time vocal pitch correction, and advanced signal processing, featuring a dedicated controller for seamless switching and an LCD display for feedback, ensuring uninterrupted operation and high-quality audio performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single host connection is used in traditional audio interfaces, then the device complexity is reduced, but the reliability of audio signal flow is compromised due to potential interruptions or failures
Solution Approach 1:
The audio interface incorporates a second host connection port and automatic switching mechanism as a preemptive measure. When the primary host connection fails or is interrupted, the system automatically switches to the secondary connection without requiring manual intervention, thus cushioning against potential signal flow interruptions before they affect performance.
Solution Approach 2:
The system dynamically changes the operational state by switching between two host connections based on connection status. The audio interface monitors the health and availability of host connections and automatically transitions from one connection parameter state to another, maintaining audio signal flow continuity without user awareness of the underlying complexity.
2Adaptability or versatility
If external pitch correction hardware or software is used, then vocal pitch correction capability is improved, but the system introduces additional latency and complexity
Solution Approach 1:
The audio interface integrates vocal pitch correction functionality directly into the device's internal processing architecture. The Voc FX modules are built-in components that process vocal signals through the same audio interface, eliminating the need for separate external pitch correction hardware or software applications, thus reducing system complexity while maintaining correction capability.
Solution Approach 2:
The audio interface incorporates multi-functional Voc FX modules that can perform various vocal processing tasks including pitch correction, effects processing, and other vocal enhancements within a single device. This universal approach allows the audio interface to handle multiple functions that would traditionally require separate external devices.
3Adaptability or versatility
If external pitch correction software is used, then pitch correction functionality is achieved, but the processing latency increases
Solution Approach 1:
By merging the pitch correction processing into the audio interface's internal DSP architecture, the system eliminates the additional data transmission and processing steps required when using external software. The vocal signals are processed through the same audio interface that captures them, significantly reducing processing latency and enabling real-time pitch correction suitable for live performances.
Data Source
AI summary
An audio interface comprises a CPU (central processing unit) that includes a DSP (digital signal processor), a MIDI (musical instrument digital interface) processor, and two Voc FX (vocal effects) modules; MIDI IN, MIDI OUT, and MIDI HOST ports connected to the MIDI processor; first and second microphone ports connected to the first and second Voc FX modules, respectively; a plurality of OUTPUT ports connected to the DSP; and first and second HOST ports connected to the DSP; wherein the audio interface provides multi-host redundancy, real-time signal processing and MIDI control,