用于web/javascript的自动音频精灵生成器？

（在一个音频文件中连接多个音频位）在web上的javascript音频控制中越来越常见。然而，创建和实现音频精灵需要相当多的“愚蠢”工作。有没有一种工具或方法可以让你自动完成而不是“手动”完成

例如，给定一个包含音频文件的文件夹，我需要一个生成音频文件的工具

包含所有内容的音频文件，最好用一点静音隔开

音频文件中每个声音片段的开始和偏移计时（以毫秒为单位）。最好，它会输出javascript sprite代码本身

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这个python脚本是一种生成音频精灵的简单方法 以及适合web的javascript代码

功能

• 无需安装特殊模块
• 将音频文件连接到带有静音填充的精灵
• 生成javascript精灵信息（计时）

要求：

silenceDuration = 0.2  # Seconds of silence between merged files
outfile = "soundsSprite.wav"  # Output file. Will be saved in the path below.
folder = "C:/Users/Jonas/Dropbox/Documents/cnru/programmering/html5 nback/stimuli_mess/audioletters/"

# Prepare...
import wave, os, glob
os.chdir(folder)
currentTime = 0
sprite = {}

# Open output file
output = wave.open(outfile, 'wb')

# Loop through files in folder and append to outfile
for i, infile in enumerate(glob.glob('*.wav')):
    # Skip the outfile itself
    if infile == outfile: continue

    # Open file and get info
    w = wave.open(folder + infile, 'rb')
    soundDuration = w.getnframes() / float(w.getframerate())

    # First file: determine general parameters- Create silence.
    if i == 0:
        output.setparams(w.getparams())
        silenceData = [0] * int(w.getframerate() * 2 * silenceDuration)  # N 0's where N are the number of samples corresponding to the duration specified in "silenceDuration"
        silenceFrames = "".join(wave.struct.pack('h', item) for item in silenceData)

    # Output sound + silence to file
    output.writeframes(w.readframes(w.getnframes()))
    output.writeframes(silenceFrames)
    w.close()

    # Create sprite metadata {'mysound.wav': [start_secs, end_secs]}. Then increment current time
    start = round(currentTime, 3)
    end = round(currentTime + soundDuration, 3)
    sprite[infile[:-4]] = [start, end]
    currentTime += soundDuration + silenceDuration

# Yay, the worst is behind us. Close output file
output.close()

# Output in the required format. Here for jquery.mb.audio
for filename, times in sprite.items():
    print '%s: {id: "%s", start: %.3f, end: %.3f, loop: false}, ' % (filename, filename, times[0], times[1])

仅在.wav上用作输入和输出。之后转换为其他文件格式

所有音频文件应具有相同的属性（采样器、频道等）

Python代码：

silenceDuration = 0.2  # Seconds of silence between merged files
outfile = "soundsSprite.wav"  # Output file. Will be saved in the path below.
folder = "C:/Users/Jonas/Dropbox/Documents/cnru/programmering/html5 nback/stimuli_mess/audioletters/"

# Prepare...
import wave, os, glob
os.chdir(folder)
currentTime = 0
sprite = {}

# Open output file
output = wave.open(outfile, 'wb')

# Loop through files in folder and append to outfile
for i, infile in enumerate(glob.glob('*.wav')):
    # Skip the outfile itself
    if infile == outfile: continue

    # Open file and get info
    w = wave.open(folder + infile, 'rb')
    soundDuration = w.getnframes() / float(w.getframerate())

    # First file: determine general parameters- Create silence.
    if i == 0:
        output.setparams(w.getparams())
        silenceData = [0] * int(w.getframerate() * 2 * silenceDuration)  # N 0's where N are the number of samples corresponding to the duration specified in "silenceDuration"
        silenceFrames = "".join(wave.struct.pack('h', item) for item in silenceData)

    # Output sound + silence to file
    output.writeframes(w.readframes(w.getnframes()))
    output.writeframes(silenceFrames)
    w.close()

    # Create sprite metadata {'mysound.wav': [start_secs, end_secs]}. Then increment current time
    start = round(currentTime, 3)
    end = round(currentTime + soundDuration, 3)
    sprite[infile[:-4]] = [start, end]
    currentTime += soundDuration + silenceDuration

# Yay, the worst is behind us. Close output file
output.close()

# Output in the required format. Here for jquery.mb.audio
for filename, times in sprite.items():
    print '%s: {id: "%s", start: %.3f, end: %.3f, loop: false}, ' % (filename, filename, times[0], times[1])

**输出** 我对我拥有的许多音频文件（大声朗读字母）运行了此操作，并获得以下输出：

精灵变量：

{'AA': [0.449, 0.776], 'E': [3.149, 3.419], 'A': [0.0, 0.249], 'C': [2.113, 2.395], 'B': [1.554, 1.913], 'AE': [0.976, 1.354], 'D': [2.595, 2.949], 'G': [4.132, 4.554], 'F': [3.619, 3.932], 'H': [4.754, 4.972], 'K': [5.957, 6.258], 'J': [5.172, 5.757], 'L': [6.458, 6.719], 'O': [6.919, 7.133], 'Q': [8.488, 8.957], 'P': [7.853, 8.288], 'S': [9.681, 10.057], 'R': [9.157, 9.481], 'U': [10.694, 10.994], 'T': [10.257, 10.494], 'V': [11.194, 11.703], 'Y': [12.601, 12.93], 'X': [11.903, 12.401], 'Z': [13.13, 13.714], 'OE': [7.333, 7.653]}

。。。已转换为样式：

感谢来自以下方面的灵感：

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（tom10的答案）

看看这个优秀的Node.js解决方案：

对我来说太棒了