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- Audio Frequency Detection 音频检测
- I am majored in audio frequency amplifier. 我主修音频放大器。
- The middle part of an audio frequency. 中声频，中频声波频率的中间部分
- An electromagnetic wave of audio frequency produced by atmospheric disturbances such as lightning, having a characteristically decreasing frequency responsible for a whistling sound of descending pitch in detection equipment. 啸声干扰一种由于诸如闪电等大气干扰而产生的音频电磁波，具有典型的逐渐减弱频率的特征，该频减引起了检波设备中调逐渐下降的啸声
- Purpose: Audio frequency power amplifier applications. 用途:用于音频功率放大。
- Scene supervisory system and audio frequency retransmission system; e. 现场监控系统及视音频转播系统;
- Purpose: Audio frequency general purpose ,driver stage amplifier applications. 用途:用于音频放大,激励级放大。
- Can control audio frequency signals remotely，the volume can be modulated. 可对各路音频信号进行远程操控，音量可调；
- An electromagnetic wave of audio frequency produced by atmospheric disturbances such as lightning,having a characteristically decreasing frequency responsible for a whistling sound of descending pitch in detection equipment. 啸声干扰一种由于诸如闪电等大气干扰而产生的音频电磁波，具有典型的逐渐减弱频率的特征，该频减引起了检波设备中调逐渐下降的啸声。
- Theoretical and actual result analyses show that high frequency detection is an effective method in the prediction of carbonate reservoir beds. 理论及实际效果分析表明 ,高频检测是预测碳酸盐岩储集层的有效方法 ,该方法在充分利用地震波的频率信息预测岩性及油藏领域方面开辟了一新思路 ;
- The main hardware of multi-media computer is composed of CD-ROM, video frequency, audio frequency. 多媒体计算机的主要硬件包括：CD－ROM（光盘驱动器）、视频卡和音频卡。
- The audio frequency alternately service system(VOD), and indoors viewability bill inquiry service. 视音频交互服务系统（VOD），提供客房内可视性帐单查询服务；
- Also there is no "Ghosting" or reflective signals that occur as there is no audio frequency being transmitted. 观察这一次的锁定方向，两个方向的交叉点就是目标物的埋藏位置。
- DSO covers the theories of signal pretreatment, data collection, frequency detection, automatic control, analysis of frequency spectrum and data processing. 其中涉及到信号预处理、数据采集、同步触发、测频、自动控制、数据显示和处理、频谱分析等诸多方面的理论。
- This paper introduces the principle and tested results of measuring nodulizing grade by audio frequency method. 介绍了音频法检测铸件球化级别的原理及试验结果。
- Through the music switcher, music play mode and audio frequency mode can be chosen, which have a very good effect. 通过音乐开关可选择音乐播放、音频方式治疗，有很好的治疗效果。
- Including tabulates the window, the audio frequency characteristic adjustment function, imitates winamp. 详细说明：完整的MP3播放器源码。包括列表窗口，音频特性调整功能，仿照winamp。支持换肤。
- A new method for power measurement of audio frequencies is introduced. 介绍了一种音频范围内功率测量的新方法。
- Signal demodulation of automatic block with audio frequency shift modulated track circuits was implemented with phase-locked loop( PLL) technique and a singe chip microcomputer. 利用锁相环(LL)窄带跟踪特性;与单片机结合;实现自动闭塞系统移频信号解调.
- Using Mallat algorithm on the basis of wavelet transform and multiresolution analysis(MRA) in connection with traditional FFT,a new speech signal fundamental frequency detection method is presented. 将基于小波变换与多分辨分析 (MRA)下的Mallat算法与传统的快速傅立叶变换(FFT)相结合 ,提出了一种新的语音信号的基音频率检测方法。
