| 改造AAC语音室学习机音质的措施 |
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| 引用本文： | 张碧翔.改造AAC语音室学习机音质的措施[J].电声技术,2012,36(9):30-33. |
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| 作者姓名： | 张碧翔 |
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| 作者单位： | 四川机电职业技术学院 实验实训部,四川 攀枝花,617000 |
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| 摘 要： | 介绍了改造AAC语音室学习机音质的措施,包括选择优质磁头调整录音补偿网络电路、放音补偿网络电路、音频压缩/扩展电路、电机稳速电路的参数。改造后的学习机带速稳定、音质层次分明、信噪比显著提高。此方法成本低、检测性能优、工作效率高。
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| 关 键 词： | 磁头 录音补偿网络 放音补偿网络 音频扩展/压缩 |
Measures to Improve the Quality of AAC Language Lab Learning Machine |
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| ZHANG Bixiang.Measures to Improve the Quality of AAC Language Lab Learning Machine[J].Audio Engineering,2012,36(9):30-33. |
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| Authors: | ZHANG Bixiang |
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| Affiliation: | ZHANG Bixiang (Department of Practice and Experiment, Sichuan Electromechanical Institute of Vocation and Technology, Panzhihna Sichuan 617000, China) |
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| Abstract: | The measures to improve the AAC language lab learning machine performance are introduced, which include se- lecting high quality head and scientifically adjusting the recording compensation network circuit, playing compensation net- work circuit, audio compression/expansion circuit, motor speed circuit parameters. The learning machine after changed has stable conveyor speed and quality level ,which obvious improves signal-to-noise ratio. This method is of low cost, excellent performance, high work efficiency and detection. |
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| Keywords: | magnetic head recording compensation network playing compensation network audio compression/expansion |
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