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For optimal results...

Avoid...

Sampling Rate

Capture audio with a minimum sampling rate of 16,000 Hz.

Lower sampling rates may reduce accuracy. Always avoid re-sampling.

Encoding

Use a lossless codec to record and transmit audio. LINEAR16 inWAV file format is recommended.

Lossy encoding

Recording Environment

Our technology is designed to ignore background voices and noise without additional noise-canceling. However, for optimal results, position the microphone as close to the user as possible, particularly when background noise is present.

Excessive background noise and echoes may reduce accuracy, especially if a lossy codec is also used. In cases of poor audio quality, your recognition request can take significantly longer to process

Sampling rate

Set the sampling rate of the audio source to a minimum of 16000 Hz.