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fix: audio sample rate

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This commit is contained in:
linyuchen 2024-03-23 22:25:48 +08:00
parent 36f7f1b026
commit bb3bce203d
2 changed files with 10 additions and 7 deletions
src/common
config.ts
utils
audio.ts

2
src/common/config.ts

@ -6,7 +6,7 @@ import path from "node:path";
import {selfInfo} from "./data"; import {selfInfo} from "./data";
import {DATA_DIR} from "./utils"; import {DATA_DIR} from "./utils";
export const HOOK_LOG = true; export const HOOK_LOG = false;
export const ALLOW_SEND_TEMP_MSG = false; export const ALLOW_SEND_TEMP_MSG = false;

15
src/common/utils/audio.ts

@ -3,7 +3,7 @@ import {encode, getDuration, getWavFileInfo, isWav} from "silk-wasm";
import fsPromise from "fs/promises"; import fsPromise from "fs/promises";
import {log} from "./log"; import {log} from "./log";
import path from "node:path"; import path from "node:path";
import {DATA_DIR} from "./index"; import {DATA_DIR, TEMP_DIR} from "./index";
import {v4 as uuidv4} from "uuid"; import {v4 as uuidv4} from "uuid";
import {getConfigUtil} from "../config"; import {getConfigUtil} from "../config";
import ffmpeg from "fluent-ffmpeg"; import ffmpeg from "fluent-ffmpeg";
@ -60,7 +60,7 @@ export async function encodeSilk(filePath: string) {
// } // }
try { try {
const pttPath = path.join(DATA_DIR, uuidv4()); const pttPath = path.join(TEMP_DIR, uuidv4());
if (getFileHeader(filePath) !== "02232153494c4b") { if (getFileHeader(filePath) !== "02232153494c4b") {
log(`语音文件${filePath}需要转换成silk`) log(`语音文件${filePath}需要转换成silk`)
const _isWav = await isWavFile(filePath); const _isWav = await isWavFile(filePath);
@ -71,7 +71,10 @@ export async function encodeSilk(filePath: string) {
if (ffmpegPath) { if (ffmpegPath) {
ffmpeg.setFfmpegPath(ffmpegPath); ffmpeg.setFfmpegPath(ffmpegPath);
} }
ffmpeg(filePath).toFormat("wav").audioChannels(1).audioFrequency(24000).on('end', function () { ffmpeg(filePath).toFormat("wav")
.audioChannels(1)
.audioFrequency(16000)
.on('end', function () {
log('wav转换完成'); log('wav转换完成');
}) })
.on('error', function (err) { .on('error', function (err) {
@ -93,6 +96,7 @@ export async function encodeSilk(filePath: string) {
wav = fs.readFileSync(filePath) wav = fs.readFileSync(filePath)
const allowSampleRate = [8000, 12000, 16000, 24000, 32000, 44100, 48000] const allowSampleRate = [8000, 12000, 16000, 24000, 32000, 44100, 48000]
const {fmt} = getWavFileInfo(wav) const {fmt} = getWavFileInfo(wav)
// log(`wav文件信息`, fmt)
if (!allowSampleRate.includes(fmt.sampleRate)) { if (!allowSampleRate.includes(fmt.sampleRate)) {
wav = undefined wav = undefined
await convert() await convert()
@ -103,7 +107,7 @@ export async function encodeSilk(filePath: string) {
fs.writeFileSync(pttPath, silk.data); fs.writeFileSync(pttPath, silk.data);
fs.unlink(wavPath, (err) => { fs.unlink(wavPath, (err) => {
}); });
const gDuration = await guessDuration(pttPath) // const gDuration = await guessDuration(pttPath)
log(`语音文件${filePath}转换成功!`, pttPath, `时长:`, silk.duration) log(`语音文件${filePath}转换成功!`, pttPath, `时长:`, silk.duration)
return { return {
converted: true, converted: true,
@ -113,12 +117,11 @@ export async function encodeSilk(filePath: string) {
} else { } else {
const silk = fs.readFileSync(filePath); const silk = fs.readFileSync(filePath);
let duration = 0; let duration = 0;
const gDuration = await guessDuration(filePath)
try { try {
duration = getDuration(silk) / 1000 duration = getDuration(silk) / 1000
} catch (e) { } catch (e) {
log("获取语音文件时长失败, 使用文件大小推测时长", filePath, e.stack) log("获取语音文件时长失败, 使用文件大小推测时长", filePath, e.stack)
duration = gDuration; duration = await guessDuration(filePath);
} }
return { return {