NVIDIA Linux Audio Effects SDK

The NVIDIA Linux Audio Effects SDK provides the following audio effects for broadcast use cases with real-time audio processing:

1. Background Noise Reduction: removes common background noise while preserving the speaker’s natural voice. A second version of this effect offers improved accuracy for automated speech recognition.


2. Room Echo Cancellation: removes and suppresses reverbs from audio that might occur from the recording environment, improving speech clarity.


3. Background Noise Reduction + Room Echo Cancellation: removes unwanted noises and reverberations from audio, improving speech intelligibility.


4. Audio Super Resolution: improves sound quality by adding higher frequency content to the audio stream. For low-frequency audio, this feature predicts the higher frequency spectrum of input audio, which improves audio quality.


5. Acoustic Echo Cancellation: removes acoustic echo and feedback from audio, which improves the bidirectional audio quality.


6. Studio Voice: enables ordinary headset, laptop, and desktop microphones to deliver the sound of a high-end studio mic, even if recorded in less-than-ideal acoustic environments with distortions such as reverberations or static noise. Studio Voice enhances and recovers speech degraded by noise reduction filters and beamforming algorithms, making the audio sound like it was recorded in a professional studio. This effect has two variations: Studio Voice High Quality and Studio Voice Low Latency.


7. Speaker Focus (Early Access): identifies and isolates the primary speaker from all other speakers and removes the speech of all other speakers from the input audio.


8. Voice Font (Early Access): converts the speaker's voice in input audio to match the target voice while keeping linguistic information and prosody (for example, rhythm and intonation) unchanged.


For more detailed information, please refer to the documentation guide in the SDK packages.

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