錄音硬件 - 園園
（I dedicated this document to GaoShan friend 戈壁灘）

當軟件裝上時，就得看硬件是不是也工作了。話筒和耳機是必須的。電腦聲卡有友好的，接受各種層次的話筒。也有拒絕很多種話筒的。我的電腦聲卡就是。連一般的話筒都不行。錄音時能看見下面green bar在動，卻看不見wave 錄在track 上。尤其好的話筒，像Shure SM58，好像普遍都說信息太小。這時加大信息是一種可行的辦法。
我買了M-Audio MobilePre USB Portable Audio Interface 來加大input volume. 下面是link 供參考。
http://www.musiciansfriend.com/product/MAudio-MobilePre-USB-Portable-Audio-Interface?sku=701368&src=3SOSWXXA

First you need to install the device software which comes with the Audio Interface. There are some additional editing software with the purchase, I did not install because I have these functions in CE. But you must install device software into your computer.

And then you need to make sure to connect 3 lines correctly:

Line 1 – USB line (gray line). This line comes with the product. You need to connect this line from USB port of audio interface with USB port in your computer. You can easily find the holes since they are so obvious for the size.

Line 2 – cable line for microphone. This line does not come with my purchase, so I have to buy it separately. You need to make sure you buy a right one. Look carefully for the two ends for what you really need. Open the box to see how many lines coming with your purchase. You may be lucky to get all the lines. If not, you can buy them right away. I do not know these and have to drive back to Sam Ash Music Store three times. You need to connect this line from audio interface with your microphone.

Line 3 A– for desktop, you need to connect from your speaker to audio interface output stereo hole (Under output section at the back of the device, there are 3 holes, the smaller one with color is.)

Line 3 B – for laptop, you need to have a line with both small heads, like the size of the head of the headphone. You need to buy this line if it does not come with your purchase. Connect this line from audio interface output stereo hole to your laptop microphone hole.

Now you connect what you are supposed to.

這個產品有的說好用，有的說頭痛。就我這兩天install 的經歷來說，簡直讓我睡不着。折騰了一番，把它接上了desktop. 折騰了兩天，還是無法與laptop 接上. 毛病是我一插上USB接頭，伴奏樂就聽不見了。問題就出在了USB上. 我不太懂USB, 從internet上看到，USB有USB port和USB hut。我不懂有啥區別。若是安部就班裝上就工作了，你的USB是那種 友好的. 若是安部就班裝上不工作的, setting 就有點不一樣了。

我的情況是，一插上USB，我就聽不見伴奏樂。下面是戈壁灘幫我找出的解決辦法。我貼出來供參考。

When you connect with lines, your audio interface should be lit (blue line). Then play a song from Window Media Player. If you can hear the sound, you have no problem. Your computer USB recognizes audio interface device. If not, please follow the steps to change your setting to try to see if this solves your problem.

• Go to start/control panel/sounds and audio devices/click audio tab
• You should see two areas 1) sound playback 2) sound recording (normally, both should show “M-Audio Mobile Pre” because they will be chosen when you connect the audio interface with your computer. However, my computer does not play sound when these two are up, so I have to change the setting as:

• Sound playback – my original sound card, not M-Audio Mobile Pre (from drop down box, you can see you have two choices, one is M-Audio Mobile Pre and the other one should be your original sound device in your computer.)

• Sound recording - M-Audio Mobile Pre

This is how I finally got my laptop connected with this audio interface. One more important thing to remember is to take the external USB mouse out. Otherwise, it still does not work in my laptop.You have to use internal mouse instead.

僅供參考。I hope this can help those who need audio interface to increase input volume for recording.