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Co-authored-by: Vincent QB <vincentqb@users.noreply.github.com>

Co-authored-by: moto <855818+mthrok@users.noreply.github.com>

* Switch to cmake for build
* Hide symbols

modified amplitude_to_DB to clamp per-item when a batch is provided
Co-authored-by: Vincent QB <vincentqb@users.noreply.github.com>

* Distinguish get_encodinginfo for Tensor I/O and save output

* Isolate get_tensor_encodinginfo so as not to use the same helper function

Co-authored-by: Prabhat Roy <prabhatroy@fb.com>

So that when a test fails in flaky manner, we can look into the difference.

Co-authored-by: Prabhat Roy <prabhatroy@fb.com>

Co-authored-by: Prabhat Roy <prabhatroy@fb.com>

[`sox_format_t.tell_off`](https://fossies.org/dox/sox-14.4.2/structsox__format__t.html#a2016a9fa839f3139e3c2f64381b0c445) should be representing current offset in file, but there are cases it does not. This was causing segmentation fault in some cases. This PR fixes it by replacing it with `ftell` call and add extra check so that if the same thing should happen, it will throw runtime error instead of segmentation fault.

fix 'file-does-not-end-in-newline' and typo.

Co-authored-by: krishnakalyan3 <skalyan@cloudera.com>

* Do not install sox system-wide, so that it will never get mixed up with static one torchaudio builds
* Do not install cmake system-wide
* Move libsndfile installation to Docker image