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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7 v5 L$ y* {, F6 @6 \* W9 b2 M
; L- c5 p, j6 }7 V7 |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
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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？; f9 R5 |1 ~3 r4 e& {" s
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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？
) {) N3 o6 n$ Y1 z3 C n# Q- C尽管+18明显很有推力，但感觉好像有点过头有点吵的感觉。0 k, Z6 z( Z/ s& f* u
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PS:在驱动说明里找到的答案
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* Y; I, \) F& G: Y. PXonar Essence ST bit-perfect ASIO driver (beta) for Windows XP 32/64bit; c b5 X: V! Y5 r" b* [1 c
1. Sample rate supported: 44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz
6 Y& z) g& Z; E: X2. Supports one ASIO playback stream (maximum 8 channels) to analog output.( P% _% c* n+ j# ^, Q# t4 `7 b
3. Supports one ASIO recording stream (2 channels) from analog input.
5 v4 T6 O2 X6 r+ {4 D4. Recording source (microphone in or line in) is selected by system mixer.: R9 M8 O! X9 T
5. To keep the ASIO stream bit-perfect, the following two rules apply:# Z) O2 m9 @8 i( b" X
(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.$ l: J4 ]& W& J# r) H4 X) L
(2) No volume control is available for the ASIO stream.
[' u7 M1 B- b6. 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." E J( K" f$ m! U
7. Current buffer time is set at 10ms, will be adjustable in later version.! D. ?" z2 N0 l8 z
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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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8 y/ W5 }* i8 Y5 D3 X小白一个，不胜赐教 |
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发表于 2010-9-13 21:37
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