5/24/2023 0 Comments Speech timer app remote control![]() The audio output is transmitted to a Class-D amplifier via a wired cable. In addition, Yao developed an interface that makes it easy to adjust the sound effect on the application. For example, Jaloudi’s intergraded wireless and wired microphone system transmits the audio input via a wired cable to the RCA connector on the mixing console. To adjust the mixer system effectively, the integration of platform functions has gradually attracted attention. It is not easy for an inexperienced person to control every detailed operation and the sound effects. It is often necessary for the sound engineer to listen to the audio effects on the spot and to then make adjustments immediately. Through the audio mixer, the audio input can be played via speakers. The traditional audio mixer has multiple input channels. While different instruments are played, performers will have different and individual adjustment needs. In general, a sound engineer, who is responsible for the public address (PA) system, must satisfy and deal with all requests from performers, musicians, and listeners during a live band performance. Moreover, the proposed system has the advantage of having a low-cost hardware circuit design, and provides high flexibility of setting for the audio mixer system according to the user’s preference. The experimental results show the average accuracy of all respondents reached 92.3%. ![]() The main contribution of this work is to propose multiple functions of a mixer system with a convenient and interactive user interface. The control commands will be transmitted to DSP via Bluetooth 5.0, self-defined Bluetooth packet format (SBPF), and data transfer controller (DTC). ![]() The application provides a UI interface on an Android mobile phone in order to achieve the functions of speech recognition and touch control. The proposed system adopts a digital signal processor (DSP) as the core of the hardware architecture. This paper presents a smart digital mixer system that integrates touch control, speech control, and commonly used functions on an Android mobile platform to improve the mobility of audio mixer while tuning. However, sound engineers always spend plenty of time tuning the mixer until the satisfied results are obtained. To achieve this effect, microphones and instruments are all connected to an audio mixer, then the expected audio output will be played through the speakers. When a band is performing at a public occasion, certain sound effects are expected to be added to enliven the atmosphere.
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