GitLab

* add Waveforms for Testing Purposes section

* Update test/README.md

use wrapper function for scipy.io.wavfile.read
Co-authored-by: moto <855818+mthrok@users.noreply.github.com>

* remove un-used files from the doc

* Update test/README.md

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

* fix indent; remove mentions of unused files

* remove whitenoise* files from README.md
Co-authored-by: moto <855818+mthrok@users.noreply.github.com>

* Make tests backend aware by introducing TorchaudioTestCase and reset backend for each TestCase.

* Set backends for the test cases that require specific backend.

* Add README for test

* Apply review feedback

* Add description to test_dataloader