Spaces:
Running
Running
File size: 1,558 Bytes
2f49513 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 |
/*
* SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { useEffect, useRef } from "react";
import logger from "../utils/logger";
const FFT_SIZE = 256;
const dataArray = new Float32Array(FFT_SIZE / 2);
export default function useRealTimeVolume(
source: AudioNode | null,
threshold: number = 0
): number {
const analyzerRef = useRef<AnalyserNode>(null);
useEffect(() => {
logger.log("New source! Creating new analyzer");
if (source) {
analyzerRef.current = source.context.createAnalyser();
analyzerRef.current.fftSize = FFT_SIZE;
source.connect(analyzerRef.current);
}
}, [source]);
const analyzer = analyzerRef.current;
if (!analyzer) {
return 0;
}
analyzer.getFloatFrequencyData(dataArray);
if (Number.isFinite(dataArray[10])) {
const volume = Math.max(0, dataArray[10] + 120) / 5;
return volume > threshold ? volume : 0;
}
return 0;
}
|