奇怪的 wav 文件。我可以使用什么过滤器?
我目前正在研究一些与音频文件识别相关的项目。然而,一种类型的文件会产生许多问题。
来自 Audacity:
是否有任何已知的过滤器/算法可以处理此类文件并使它们“正常” ?
I am working currently on a few projects connected with audio files recognition. However one type of files creates many problems.
From Audacity:
Are there any known filters/algorithms which can cope with this type of files and make them "normal" ?
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声音一定严重失真。
恢复波形的一个可能的解决方案是应用 30hz 的高通滤波器。如果您只关心语音,则可以在 10khz 处应用低通,以改善失真给声音带来的抖动。
但请注意,该 wav 声音可能具有特殊编码。在这种情况下,您需要正确转换或加载它,而不是尝试修复声音。
The sound must be heavily distorted.
A possible solution to restore the waveform is to apply a high pass filter at 30hz. If you only care about voice you can then apply a low pass at 10khz to improve the thrashing that the distortion has introduced to the sound.
Note though that there is a possibility that this wav sound has a special encoding. In that case you need to convert or load it correctly instead of trying to fix the sound.