Sound Production

This lab was quiet interesting because Rakesh showed us about frequency and he played a clip in which different frequency is shown, some students weren't able to hear the last few frequency that other students could hear.

When working with sounds you would need to know about frequency. People can hear sounds with in certain frequency levels, from 20 Hz to 20,000 Hz, (H = hertz). A key factor in hearing sounds is your age, for example during our lab; Rakesh was the first to stop hearing the sounds.

When recording sound would be recorded using a Mic, there are many different microphones you can use to record sound.

One of the best mics to use is an Omnidirectional Mic, this mic is able to record sounds from all different directions around the Mic.

This image below is of an omnidirectional mic

There are also many other mics that can be used such as a Stereo Mic, a Cardioid mic, Mini Cardioid Mic etc.

Omnidirectional Mic

• Omni pattern provides maximum ambient pickup. Frequency response: 20 - 18,000 Hz.
• Operates on battery or phantom power.
• Ideal for group vocals, strings, acoustic guitar and piano.

Stereo Mic

• Provides the spacial impact and realism of a live sound field.
• Frequency response: 30 - 20,000 Hz.
• Battery operation only.
• Ideal for TV, DAT (digital audio tape) and Radio recording.

Cardiod Mic

• Sound is similar to expensive studio microphones.
• Low-mass diaphragm ensures minimum sound distortion.
• Frequency response: 30 - 20,000 Hz.
• Operates on battery and phantom power.
• Ideal for close-up vocal, overheads, piano and strings.

Mini Cardoid Mic ((Lavalier Mic)

• Frequency response: 40 - 20,000 Hz.
•  Operates on battery and phantom power.
• Mic is attached to a power and transmitter module.
• Provides crisp, full sounding voice and instrument pickup.

Unidirectional Mic (Shotgun)

• Two range settings: “Normal” for close up and medium distance recording; “Tele” for long distance pickup.
• Frequency response: 70 - 18,000 Hz.
• Designed especially for voice recording with video cameras.