|
|
因为懒得去折腾耳放和解码器所以又入了张老虎卡
2 M4 v( c9 E0 X, X. |; R, s
3 u) T- C# y& p5 [& B1 B5 s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' j! N5 A) V' l% A
% ? d* t& s! S* s% A
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?
: I8 Y5 ?1 r: U. `9 t9 p$ ^$ H3 F, [$ w) X
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?4 }8 L& v# |8 T+ L
尽管+18明显很有推力,但感觉好像有点过头有点吵的感觉。' ~5 K9 n4 R0 R k1 q! {! Q. R+ B
7 H, Z: U2 E) S: I m& S- @
u8 J; ]! U. u- W3 E' ^
PS:在驱动说明里找到的答案4 c+ F2 _3 r/ _1 s
! F5 V8 s1 L. V9 lXonar Essence ST bit-perfect ASIO driver (beta) for Windows XP 32/64bit& k, q& m& Y) M8 ?
1. Sample rate supported: 44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz
& f6 q; E4 W+ \+ j' H% T2. Supports one ASIO playback stream (maximum 8 channels) to analog output.% E8 [$ d K3 E4 h9 u" f) i
3. Supports one ASIO recording stream (2 channels) from analog input.% i, q# z+ P' d6 K* B
4. Recording source (microphone in or line in) is selected by system mixer.: d1 G9 O4 Y8 H; ~" x
5. To keep the ASIO stream bit-perfect, the following two rules apply:3 h9 w' @; y% u
(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.
$ s5 O* Z K) K1 S(2) No volume control is available for the ASIO stream.
/ C( L% t: v8 C* ^1 v5 ~- D* e- Q6. 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.
+ J" W+ Z% ?; r* O& J7. Current buffer time is set at 10ms, will be adjustable in later version.
: Q3 h$ I; r* y7 n( m/ D3 F6 }5 a) E; I) v
0 I( S# F0 e" J% ]" F% C- ^) ~这样做有意义嘛?我调用foobar的音量功能岂不更糟糕。; F# \5 R; \7 j8 I
, ~# K7 x3 I( _9 X! A/ |1 ?5 w$ x$ G* m& P2 u7 Q& V7 {
小白一个,不胜赐教 |
|