我正在使用 SoundTouch 库对一些音频文件进行音高转换。一切正常,除了新音频文件的最后几百毫秒与原始文件不同。这是原始文件:
正如你所看到的,结局是不对的。就像原始文件中没有任何内容一样,当然有。
这是我正在使用的代码:
int generateFile(WavInFile *file, SoundTouch *st, string fileName, int semitones)
{
const bool speech = true;
SAMPLETYPE samples[BUFF_SIZE];
WavOutFile *out = new WavOutFile(fileName.c_str(), (int)file->getSampleRate(), (int)file->getNumBits(), (int)file->getNumChannels());
int nChannels = (int)file->getNumChannels();
assert(nChannels > 0);
int num, nSamples;
int buffSizeSamples = BUFF_SIZE / nChannels;
st->setSampleRate((int)file->getSampleRate());
st->setChannels(nChannels);
st->setPitchSemiTones(semitones);
if (!speech)
{
st->setSetting(SETTING_USE_QUICKSEEK, 0);
st->setSetting(SETTING_USE_AA_FILTER, 0);
}
else
{
st->setSetting(SETTING_USE_QUICKSEEK, 0);
st->setSetting(SETTING_SEQUENCE_MS, 40);
st->setSetting(SETTING_SEEKWINDOW_MS, 15);
st->setSetting(SETTING_OVERLAP_MS, 8);
}
while (file->eof() == 0)
{
num = file->read(samples, BUFF_SIZE);
nSamples = num / (int)file->getNumChannels();
st->putSamples(samples, nSamples);
do
{
nSamples = st->receiveSamples(samples, buffSizeSamples);
out->write(samples, nSamples * nChannels);
} while (nSamples != 0);
}
st->flush();
do
{
nSamples = st->receiveSamples(samples, buffSizeSamples);
out->write(samples, nSamples * nChannels);
} while (nSamples != 0);
delete out;
return 0;
}
是的,我稍后在我的代码中删除了 WavInFile *file。所以我的问题是 - 为什么 SoundTouch 会这样做,我该如何解决?
此外,我不能简单地剪切新音频文件的错误部分,因为我正在以这种方式生成数百个文件,因此剪切每一个文件都会......