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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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R; \5 S: b! [5 D- Z5 _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- c8 M' `- p! N0 U
A- C( i# q7 P r' n: |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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1 Q# _* K5 t' M' |; O1 [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？: L- p7 e2 ~3 ^/ N' ~
尽管+18明显很有推力，但感觉好像有点过头有点吵的感觉。" J- j/ J/ A( d0 f- _: ?" O# r) P
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3 H5 L* [$ O2 v2 W/ @# Q1 NPS:在驱动说明里找到的答案
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Xonar Essence ST bit-perfect ASIO driver (beta) for Windows XP 32/64bit l" e- L4 ~. }% e- d: _; l
1. Sample rate supported: 44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz
/ U! T+ b, z4 B7 j* E& N2. Supports one ASIO playback stream (maximum 8 channels) to analog output.) Q) i! {5 ~: x! A
3. Supports one ASIO recording stream (2 channels) from analog input.
$ X! `; F8 ^" ~4. Recording source (microphone in or line in) is selected by system mixer.2 t/ R) D( r4 ^# }# g* z
5. To keep the ASIO stream bit-perfect, the following two rules apply:
' V6 ]2 W2 w; N* W, M5 J+ i(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.
$ D; ^! X6 }1 @6 C" T+ v6 D& Q& D(2) No volume control is available for the ASIO stream.
v3 K* e% A) t/ `) I6. 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.( \, b2 _- x7 c, H7 W: K' y
7. Current buffer time is set at 10ms, will be adjustable in later version.
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6 U7 G3 x+ n: \5 [! i: H6 Z这样做有意义嘛？我调用foobar的音量功能岂不更糟糕。3 N8 A9 U# S$ p# J! A8 a
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小白一个，不胜赐教 |
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发表于 2010-9-13 21:37
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