Method for Determining a Transmission Quality When Receiving Audio Signals

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention describes a method for determining the quality of audio transmission by analyzing audio signals sent via analog frequency-modulated channels. The process involves IQ demodulation, digitizing the signal, calculating statistical measures of the signal samples, and using fluctuations in these measurements to indicate how good or bad the transmission channel is.

Use CasesContent extracted from patent full text and abstract with AI.

• Assessing the audio quality in analog FM radio transmissions
• Diagnosing problems in analog audio broadcasting systems
• Quality monitoring in analog wireless audio communication devices like microphones or hearing aids
• Testing and optimizing analog audio transmission equipment during manufacturing

BenefitsContent extracted from patent full text and abstract with AI.

• Provides an objective, quantifiable measurement of audio transmission quality
• Enables early detection of signal degradation or interference in analog FM channels
• Can be integrated into existing audio receiving devices for real-time quality monitoring
• Improves reliability of analog audio communication systems

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Inventors & Applicants

Patent Abstract

There is provided a method of determining a transmission quality when receiving audio signals which are transmitted over a frequency-modulated path in analog form. For that purpose a frequency-modulated audio signal is received and IQ demodulation of the input signal is implemented. The I- and the Q-path of the demodulated baseband signal are subjected to analog/digital conversion. Alternatively the input signal can first be digitized and then subjected to IQ demodulation. A multiplicity of N samples is detected. The amount of the N samples is formed. A reference value is determined from the amount of the N samples. Each of the N samples is standardized to the reference value. A measurement in respect of the fluctuations in the standardized amounts is determined. The measurement in respect of the fluctuations indicates the quality of the transmission path.