Audio correction

Audio correction 

When speaking to my tutor Annabeth with regards to entering my film into festivals such as the Royal Television Society. She stressed the importance of audio clarity in film festivals

So here are a couple of Premiere pro audio presets that will help improve the clarity of my audio.

DeHummer:

• Firstly in Premiere apply the DeHummer preset to your audio. 
• In the custom set up, set the filter to 16.
• Then set the reduction to it's highest value, around 30.
• Making sure that the preset is at 50.hz.

EQ:

• A good way to isolate the noise frequencies is applying an EQ filter on the audio clip.
• Firstly mark the 'in' and 'out' points on a section of the timeline where there is any background noise.
• Set the play mode to loop and press play. You should now hear a loop of the background noise.
• Now apply the EQ filter to the audio track and low the custom setup drop down.
• In the the custom setup turn on a mid filter (mid2) and rise the point to the top of the graph filter in-order to determine where the main peak of the background noise comes from.
• Invert the shape by dragging the point to the bottom of the graph.
• Widen the curve and adjust the position to reduce the noise.
• De select loop mode and press play.
• Now adjust the curve depth so you you reach a good level between noise reduction and a natural sounding voice.
• Increase the Output slider to maintain a similar volume after the effect is applied.
• To take out some of the sharpness in the voice drop the high end frequencies.
• As well as dropping low end frequencies to remove any rumble.

DeNoiser:

• In the effect panel in premiere go to: Audio Effects > Stereo > DeNoiser.
• Drag and drop on to the audio
• Open the Custom setup 
• Take the reduction to around - 17.dB
• Increase the Offset to around 10.dB

High-pass:

• High-pass removes LOW frequencies, such as a low hum of a fan.
• Low-pass removes HIGH frequencies, such as a screech.
• Apply the High-pass by dragging and dropping it onto the audio.
• Then in the Effect control change the Cutoff to around 200.hz

Dynamics:

• Apply the Dynamics effect to the audio timeline.
• Under the Compressor column change the Threshold to approximately -22.dB - which determines when the compression kicks in.
• Ratio is how much compression is applied. Change it to around 3.00dB
• Attack & Release deal with how fast the compression starts and how slow it releases.
• Take the Attack down to 0.10
• The last parameter MakeUp gain which is a volume control, change the value to around 12.dB