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2026.06.29

Wind Noise Suppression Software

Product Overview

When making a conversation in outdoor and recording, or shooting a motion using a microphone, the microphone picks up the wind sound which makes difficulty to hear the voice. Attaching a windshield sponge to a microphone could be a solution to avoid such wind noise, but it cannot be applied to a smartphone. As the wind sound hits the microphone has many low frequency components, it may be effective to suppress the low frequency components with a high-pass filter. However, this method suppresses the low frequency components of the sound even when the wind is not blowing.

TMC has developed a software IP that detects the wind noise in real time and instantly reduces the wind noise only when the noise is detected.

Model Number

  • TM1829

Features

  • No patent fees is required taking advantage of an original voice processing technology.
  • Instant wind noise suppression by detecting the wind noise in real time.
  • No signal suppression is made when no wind, since the suppression process is performing only when the wind noise is detected.
  • Parameterized wind noise suppression, that enables adjusting according to the equipment.

Specification

Sampling Frequency 8kHz, 16kHz, 24kHz, 32kHz, 48kHz
Input / Output Data Format 16-bit linear PCM (monaural or stereo)
Frame Length 8msec
Strength of Wind Noise Suppression Adjustable in 4 steps (Max. suppression of approx. 20 dB)

Processing Example

Product & Technology Inquiries                     Please feel free to contact us with technical questions regarding software integration, such as "Will it work on our current CPU?" or "Is it compatible with our existing OS?", or to consult about an evaluation version.

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