From the course: Audio Recording Techniques
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Exploring direct boxes
Direct injection of a signal means that a microphone is bypassed, and the electric instrument is plugged directly into the console, microphone preamp, or recording device. It's used to capture the pure sound of the instrument which isn't always desirable, and to eliminate the need for an additional microphone, making the session setup faster. There are a couple of other good reasons why a direct box is used though. The so called DI box matches the impedance of the mic preamp to the instrument. So, that the high frequency response isn't rolled off. It also provides ground isolation to eliminate any straight hum that might occur. There are two basic types of direct boxes. Active which provides gain and therefore needs electronics requiring a battery, AC or phantom power. And Passive, which has no gain, doesn't require a power. The Active box like the Countryman Type 85 sometimes has enough gain to be able to actually replace the mic preamp and connect directly to a storage device like a…
Practice while you learn with exercise files
Download the files the instructor uses to teach the course. Follow along and learn by watching, listening and practicing.
- Ch_02_Microphones_PT_Sessions.zip
- Ch_02_Microphones_Raw_WAVs.zip
- Ch_03_Preamps_PT_Sessions.zip
- Ch_03_Preamps_Raw_WAVs.zip
- Ch_04_Microphone_Placement_PT_Sessions.zip
- Ch_04_Microphone_Placement_Raw_WAVs.zip
- Ch_05_Drums_PT_Sessions.zip
- Ch_05_Drums_Raw_WAVs.zip
- Ch_06_Guitar_PT_Sessions.zip
- Ch_06_Guitar_Raw_WAVs.zip
- Ch_07_Bass_PT_Sessions.zip
- Ch_07_Bass_Raw_WAVs.zip
- Ch_08_Vocals_PT_Sessions.zip
- Ch_08_Vocals_Raw_WAVs.zip
- Ch_09_Piano_PT_Sessions.zip
- Ch_09_Piano_Raw_WAVs.zip
- Ch_10_Horns_PT_Sessions.zip
- Ch_10_Horns_Raw_WAVs.zip
- Ch_11_Strings_PT_Sessions.zip
- Ch_11_Strings_Raw_WAVs.zip
- Ch_12_Percussion_PT_Sessions.zip
- Ch_12_Percussion_Raw_WAVs.zip
- Ch_14_Stereo_Techniques_PT_Sessions.zip
- Ch_14_Stereo_Techniques_Raw_WAVs.zip
- Ch_15_Recording_The_Session_PT_Sessions.zip
- Ch_15_Recording_The_Session_Raw_WAVs.zip
- Ch_16_Simply_Falling_PT_Mix_Session.zip
- Ch_16_Simply_Falling_Raw_WAVs.zip
Contents
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Exploring different microphone types5m 16s
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Microphone directional response basics2m 43s
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Hearing different directional patterns4m 58s
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Exploring how the proximity effect works3m 55s
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(Locked)
Explaining microphone controls1m 49s
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(Locked)
Reviewing microphone accessories3m 3s
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(Locked)
Exploring direct boxes1m 9s
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(Locked)
Exploring amplifier emulators2m 36s
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