The design includes personally fabricating Dupi surrounding voice decipherer by using ordinary electronic devices, using DC control technology in the predrive amplified circuit and applying active servo-technology to the over-loaded low voice curcuit.
本文介绍了一种新型功率放大电路的设计，利用普通元器件自制杜比环绕声解码器，将直流控制技术应用到前置放大电路，将有源伺服技术应用到超重低音电路，各具特色，LM3886功率放大芯片，功率大，效果好。
the sonority of the bass voices
男低音部的低沉声音.
contrabass or double-bass clarinet.
最低音或者倍低音黑管。
treble/bass/alto clef
高音[低音/中音]谱号.
SATB (soprano,alto,tenor,bass)
女高音、女低音、男高音和男低音
A tone of low pitch or volume, especially of spoken sound.
低音；低声低强度或音量的音调，尤指说话声音
An instrument, especially a double bass, that produces tones in a low register.
低音乐器特别是低音提琴，产生出音域低的音调
A woman having a contralto voice.
女低音嗓音为女低音的妇女
lower in range than tenor and higher than bass.
音域比次中音低、比低音高。
A low - pitched sound or tone.
低音低沉音质的，深沉音调的
A voice having a range between soprano and contralto.
次高音；女中音音域在高音与低音中间的嗓音
Is he a bass or a baritone?
他是男低音还是男中音?
absence of peaky highs and beefed-up bass.
没有最高音和加强低音。
A bass singer, especially an operatic bass.
低音歌手低音歌手，尤指演唱歌剧的低音部分
a soprano with a voice between soprano and contralto.
声音在女低音和女高音之间的女高音。
A male singer or voice with a range higher than a bass and lower than a tenor.
男中音高于低音音域且低于高音音域的男音或男歌手
having or denoting a low vocal or instrumental range.
具有或者代表低音或者乐器的低音域。
Pitched an octave below the normal bass range.
倍低音的比正常的低音乐器或嗓音在音域上低一个八度的
the bass clef,ie symbol in music showing that the notes following in it are low in pitch
低音谱号（乐谱上表明其后的音符为低音的符号）.