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因为懒得去折腾耳放和解码器所以又入了张老虎卡
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耳机是HD600，现在在和原来的MIA MIDI+国产HEF188对比听中，暂时感觉良好; g+ H; b) n% q. @) U. h J+ A0 H
2 ? P) Q; w5 d4 T8 p b/ O但是现在没搞明白ASIO时的音量怎么调节？控制台的音量控制完全起不了作用。只能靠Foobar的音量条工作。驱动本身有没有其它方法控制那个耳放芯片呢？
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另外顺便关于耳放增益的问题，耳放选择关键是阻抗匹配，那么HD600（300ohm应该选+12db（64~300ohm）还是+18db（300-600ohm）比较好？0 }3 f: ~( U' i9 Z
尽管+18明显很有推力，但感觉好像有点过头有点吵的感觉。
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% ~! `4 O; Q4 XPS:在驱动说明里找到的答案5 H3 k) s8 w2 i6 J6 M! H0 U
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Xonar Essence ST bit-perfect ASIO driver (beta) for Windows XP 32/64bit2 J: w3 \/ Y% `- p+ K6 W6 l
1. Sample rate supported: 44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz
! L6 t, g) H6 K! R2. Supports one ASIO playback stream (maximum 8 channels) to analog output.
5 E- R7 |8 \, l, m+ [9 ?! l3. Supports one ASIO recording stream (2 channels) from analog input.7 i: k' c( X) Y/ x; u8 x
4. Recording source (microphone in or line in) is selected by system mixer.' w4 a# g8 B2 m' G( _0 |
5. To keep the ASIO stream bit-perfect, the following two rules apply:/ G) [. z l, u* z6 g! P8 ?
(1) The ASIO stream has higher priority of using DMA buffer than other streams. That is, when the ASIO stream is played, other streams cannot be played.
w* ^ ^0 l9 Q2 t ~7 ~(2) No volume control is available for the ASIO stream.
e- ?5 K( l" x# G! O" n4 l9 P6. When there are more than two ASIO applications running, only one application gets the right to use the hardware resource. This is based on “first come, first service” rule.
0 x7 v G$ A- H9 A' ?7. Current buffer time is set at 10ms, will be adjustable in later version.) d; D5 G6 b3 {' ~! u* w+ M1 ^
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这样做有意义嘛？我调用foobar的音量功能岂不更糟糕。
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4 e ]$ |3 ]" r9 }. M3 D小白一个，不胜赐教 |
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发表于 2010-9-13 21:37
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