Computer recording, and then made into audio files to play, recorded on the tape recorder, there is noise, the original sound is small.

Step: 1, use cool editing software to reduce noise; 2. Use a double-headed audio cable, one end of which is connected to the computer output, and the other end is connected to the micro of the tape recorder (still input, I forgot, I haven't done it for many years); 3. Turn the computer playback volume to the middle position, not too loud, or there will be a current sound; 4. Press the record key of the tape recorder; 5, click on the computer playback ideas: to ensure that the recording period.