Conversational Speech generator tool

Readme file with example that explains how the conversational speech generator tool should work.

BUG=webrtc:7218
NOTRY=True

Review-Url: https://codereview.webrtc.org/2722173003
Cr-Commit-Position: refs/heads/master@{#17010}
Committed: https://chromium.googlesource.com/external/webrtc/+/810025f9e92bfe43c0340fba8051d816618bf9a8

[AleBzk, 2017-03-01 13:04:43]

Description was changed from

==========
Readme file with example

BUG=webrtc:7218
NOTRY=True
==========

to

==========
Readme file with example

BUG=webrtc:7218
NOTRY=True
==========

[AleBzk, 2017-03-01 13:04:43]

alessiob@webrtc.org changed reviewers:
+ henrik.lundin@webrtc.org, minyue@webrtc.org

[AleBzk, 2017-03-01 13:08:08]

This CL starts an additional Python tool which I need to create suitable probing
signals to evaluate AEC/AECM in APM. Check README.md, it explains what the tool
should do.

[hlundin-webrtc, 2017-03-03 14:01:10]

LGTM with one question/comment.

https://codereview.webrtc.org/2722173003/diff/20001/webrtc/modules/audio_proc...
File webrtc/modules/audio_processing/test/py_conversational_speech/README.md
(right):

https://codereview.webrtc.org/2722173003/diff/20001/webrtc/modules/audio_proc...
webrtc/modules/audio_processing/test/py_conversational_speech/README.md:28: ``` 
a1 0
Is this implicit assumption that the speakers switch after each file? That is,
it is not possible to pass two files in a row to A, and then one file to B,
right?

If so, please, document this.

[AleBzk, 2017-03-03 15:27:08]

alessiob@webrtc.org changed reviewers:
- minyue@webrtc.org

[AleBzk, 2017-03-03 15:27:08]

Thanks a lot for your comment!
I reviewed the example allowing for multiple tracks in a row from the same
speaker and promising multiple-end conversations (which will come almost for
free).

https://codereview.webrtc.org/2722173003/diff/20001/webrtc/modules/audio_proc...
File webrtc/modules/audio_processing/test/py_conversational_speech/README.md
(right):

https://codereview.webrtc.org/2722173003/diff/20001/webrtc/modules/audio_proc...
webrtc/modules/audio_processing/test/py_conversational_speech/README.md:28: ``` 
a1 0
On 2017/03/03 14:01:10, hlundin-webrtc wrote:
> Is this implicit assumption that the speakers switch after each file? That is,
> it is not possible to pass two files in a row to A, and then one file to B,
> right?
> 
> If so, please, document this.

Good point. I think it's easier to allow freedom here (also in terms of coding).
This requires to add a third column to the text file to indicate which end is
active. This is also good to make an arbitrary number of ends (not just two).

[AleBzk, 2017-03-03 15:28:50]

Description was changed from

==========
Readme file with example

BUG=webrtc:7218
NOTRY=True
==========

to

==========
Readme file with example that explains how the conversational speech generator
tool should work.

BUG=webrtc:7218
NOTRY=True
==========

[AleBzk, 2017-03-03 15:29:09]

The CQ bit was checked by alessiob@webrtc.org

[AleBzk, 2017-03-03 15:29:09]

The patchset sent to the CQ was uploaded after l-g-t-m from
henrik.lundin@webrtc.org
Link to the patchset: https://codereview.webrtc.org/2722173003/#ps40001 (title:
"Multiple tracks in a row from the same speaker, multiple-end conversations")

[commit-bot: I haz the power, 2017-03-03 15:29:17]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2017-03-03 15:31:11]

CQ is committing da patch.

Bot data: {"patchset_id": 40001, "attempt_start_ts": 1488554949309430,
"parent_rev": "db23ea69b63d3ff3d4c42565d9bd23261dd8f9e9", "commit_rev":
"810025f9e92bfe43c0340fba8051d816618bf9a8"}

[commit-bot: I haz the power, 2017-03-03 15:31:17]

Description was changed from

==========
Readme file with example that explains how the conversational speech generator
tool should work.

BUG=webrtc:7218
NOTRY=True
==========

to

==========
Readme file with example that explains how the conversational speech generator
tool should work.

BUG=webrtc:7218
NOTRY=True

Review-Url: https://codereview.webrtc.org/2722173003
Cr-Commit-Position: refs/heads/master@{#17010}
Committed:
https://chromium.googlesource.com/external/webrtc/+/810025f9e92bfe43c0340fba8...
==========

[commit-bot: I haz the power, 2017-03-03 15:31:18]

Committed patchset #3 (id:40001) as
https://chromium.googlesource.com/external/webrtc/+/810025f9e92bfe43c0340fba8...