Video: Pitch Shifting and Microphone Specs

The other day I broke a laptop monitor in half and I recorded it using four very different microphones with different specifications. I recorded the sounds with a sampling rate of 192 kHz and loaded the sounds into Izotope RX5 to show the spectrogram and pitch down the sounds two octaves. This video demonstrates how different the sounds are when pitched down since some of the microphones capture audio well beyond what the human ear can hear – yet when you pitch the sound down those inaudible frequencies are brought into our range of hearing:

Microphones Used:
Sanken CO-100K (20 – 100’000 Hz)
Sennheiser MKH 8040 (30 – 50’000 Hz)
Rode NTG3 (40 – 20’000 Hz)
Schoeps CCM41 (40 – 20’000 Hz)

Recorder:
Sound Devices 788T

Software Used:
Izotope RX5

Powerboat passing by to game-loop audio

This year I went to the Nynäs Offshore Race which takes place only a 30 minute walk from my home in Nynäshamn. I brought my new “field recording kit” that may not be the most portable setup in the world, but it gives me the best option for recording directional spot mono audio using a Rode NTG3 shotgun microhpone and environmental ambiences and stereo effects with a pair of Sennheiser MKH 8040 micorphones. The mics are housed in wind-protecting Rode and Rycote blimps with dead kittens (those huge furry things to block most of the wind.) I record the 3 channels of audio into a Sound Devices 633 field mixer at 192 kHz 24 bit audio.

I recorded quite a few powerboats as the passed by – but getting usable game audio is quite tricky. I’ll tell you why:

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