Voice control circuit and smart television

• Main Authors: ZHANG JIE, ZUO SHUAI
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2022
• Subjects: ACOUSTICS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MUSICAL INSTRUMENTS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; SPEECH ANALYSIS OR SYNTHESIS; SPEECH OR AUDIO CODING OR DECODING; SPEECH OR VOICE PROCESSING; SPEECH RECOGNITION

A voice control circuit and a smart television, the voice control circuit comprises a smart television SOC chip, a digital audio signal processor, a first interface module, a second interface module and a recovery module, the first interface module is connected with the digital audio signal processor and the smart television SOC chip, and is used for an internal voice interface of the smart television; the second interface module is connected with the digital audio signal processor and the smart television SOC chip and is used for an external voice interface of the smart television, and the recovery module is used for sending a sound signal output by a smart television power amplifier to the first interface module and the second interface module as an echo cancellation reference signal. The recovery function is started when the second interface module is connected to the intelligent voice device, or the recovery function is closed when the second interface module is connected to the non-intelligent voice devi