A good-quality audio file results in transcription of the best quality, and to achieve a high-quality, you need to plan your audio recordings well.
Here are some tips on how to record an audio with the best possible quality:
Find a good quality microphone
For quality output, you need a good microphone, not necessarily an expensive one. Many low-priced microphones give good quality results if you know how to use them properly.
Choose a unidirectional microphone. It records sound from one direction and picks up sound only from the narrator, thus reducing ambient noise. Some microphones such as Samson Go Mic come with an option to switch between unidirectional and omnidirectional. An omnidirectional microphone picks up sound from all directions, which can result in a lot of disturbance.
Maintain a consistent recording environment!
Good-quality audio can be recorded only in a controlled recording environment. A recording studio lets you control all the sound, but if you don’t have access to a studio, here is what you can do to achieve high-quality audio output:
- Adjust the settings of the microphone or recorder according to the ambience.
- Use a microphone screen to prevent the plosive sounds of "p" or "t" or "d" ruining your recordings.
- Measure the recording distance that gives you clear audio so that the distance can be maintained for future recordings.
Place the microphone correctly!
The placement of microphone is the key to a successful recording.
- Keep the mic close to the source: For an interview, this would mean holding the microphone just below the mouth of the speaker (moving back and forth between the interviewer and interviewee).
- DO NOT keep the mic too close to the source: If the microphone is right in front of someone’s mouth, their breath will result in unpleasant thuds, distorting the recording and possibly making it incomprehensible!
Use a limiter!
It’s a good option to get a recorder equipped with a limiter. A limiter prevents distortion by limiting the levels at which the sound is being recorded. This ensures that any sudden outburst of sound like laughter is not recorded.
Avoid ambient noise as much as possible!
Maintaining complete silence is definitely tough, but you can surely get rid of noise that you can control.
- Place the microphone away from any computer, air conditioner, or other device that makes a noise.
- Make sure that everyone around is silent when the speaker speaks.
Trim down the sound!
In a recording studio, walls are designed to absorb sound waves. But how to cut the extra sound when you can’t use a studio?
- Your Cubicle setup can be designed to absorb sound.
- Porta-Booth can be used.
- Portable studio can be built using PVC pipe frame and curtains.