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    Copyright © 2026 NVIDIA Corporation

    NVIDIA

    Studio Voice

    DownloadableFree Endpoint

    Enhance input speech recorded with low-quality microphones in noisy or reverberant environments, producing studio-quality speech.

    • 2110
    • broadcast
    • communications
    • mic quality
    • nvidia ai for media
    • nvidia holoscan for media
    • smpte
    • speech enhancement
    Get API Key
    API ReferenceAPI Reference
    Accelerated by DGX Cloud

    Getting Started

    NVIDIA Studio Voice NIM uses gRPC APIs for inferencing requests. Following instructions demonstrate the usage of Studio Voice NIM model using Python client.

    Prerequisites

    You will need a system with git and Python 3.10+ installed.

    Setup NVIDIA Studio Voice Python client

    Download the Studio Voice Python client code by cloning the NIM gRPC Client Repository:

    git clone https://github.com/NVIDIA-Maxine/nim-clients.git
cd nim-clients/studio-voice

    Install the dependencies for the NVIDIA Studio Voice Python client:

    sudo apt-get install python3-pip
pip install -r requirements.txt

    Run Python Client

    Navigate to the scripts directory.

    cd scripts

    Send the gRPC requests

    python studio_voice.py --preview-mode \
    --ssl-mode TLS \
    --target grpc.nvcf.nvidia.com:443 \
    --function-id 3f0aeba3-6d91-4465-b8cc-cc2aef355186 \
    --api-key $NVIDIA_API_KEY \
    --input <input_file_path> \
    --output <output_file_path>

    Note the requirements for input file:

    • The supported format is 16-bit mono channel wav file.
    • The size limit for input file is 32 MB.
    • The duration limit for input file is 6 min.

    Command line arguments:

    • --preview-mode - Flag to send request to preview NVCF server on https://build.nvidia.com/nvidia/studiovoice/api.
    • --ssl-mode - Set the SSL mode to TLS or MTLS. Defaults to no SSL. When running preview, TLS mode must be used with default root certificate.
    • --target <ip:port> - URI of NIM's gRPC service. Use grpc.nvcf.nvidia.com:443 when hosted on NVCF. (Default: 127.0.0.1:8001)
    • --api-key $NVIDIA_API_KEY - NGC API key required for authentication. Utilized when using TRY API ignored otherwise.
    • --function-id <function_id> - Function ID for the feature.
    • --input <input_file_path> - The path to the input audio file. (Default: ../assets/studio_voice_48k_input.wav)
    • --output <output_file_path> - The path to the output audio file. (Default: ./studio_voice_48k_output.wav)
    • --streaming - Flag to enable grpc streaming mode.

    Refer the Studio Voice NIM documentation for more information.