假如弄个前面是sstv音频头，后面是音乐或者人声的音频，再拿去解码出一张图片，这张图片调制的sstv音频能否把原来的音乐或语音还原出来

音乐和SSTV的音频信号存在很大区别，SSTV软件不会识别音乐信号，也就是不会出现图片信息；但！B站有UP试过将SSTV画面进行特殊改良后使得SSTV的信号类似于音乐声音，但仅仅也是类似于音乐的声音。这个时候就可以互转。

试了，不行个人认为可能是因为它需要一些纠错码，所以改变了原来的音频

@"BG7RCA"#p48277 SSTV还有纠错功能？

Can SSTV audio and images be reversed?

BI3SDE

If I have an SSTV audio head at the front, with music or voice audio coming from it, and then decode that into a picture, could that modified SSTV audio restore the original music or voice?

dovesky

There is a significant difference between the audio signals of music and SSTV. SSTV software does not recognize music signals, meaning that no image information will appear. However, one user on Bilibili has successfully modified the SSTV signal to resemble music sounds. This allows for bidirectional conversion.

BG7RCA

I tried it, but it didn't work.
Personally, I think it might be because it needed some error correction codes, so the original audio was changed.

BG8LGP

BG7RCA Does SSTV also have error correction capabilities?

BG4IJK

SSTV音频变成图像时，取的是音频里面几个特定的音调，其他声音都会被当作噪音忽略掉，所以解出的图片里已经没有音乐或人声的信息了。

图像变成音频时，则是将图像里的颜色加工成特定的音调，所以编出来的声音不会包含音乐或人声等其他信息，而且你会觉得不同图片用同样编码方式编出来的声音听起来都差不多。

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