An audio track as an AU file does not play at normal speed

[adigold1968]

I accidentally clicked an edit command. I tried to save editing of a recorded segment and did not export the file. Now the file is saved in AU format.
When I try to hear the sound track. It sounds at a high and uncertain speed.
How to restore the file or re-edit it to normal playback speed.
To sum up the question: How can I edit an AU file and change the playback speed from high speed to normal speed?

[adigold1968]

I accidentally clicked an edit command. I tried to save editing of a recorded segment and did not export the file. Now the file is saved in AU format.
When I try to hear the sound track. It sounds at a high and uncertain speed.
How to restore the file or re-edit it to normal playback speed.
To sum up the question: How can I edit an AU file and change the playback speed from high speed to normal speed?

Audacity 2.2.1- version of Windows using

e0000a60.au

AU file
Created from audio track I made from voice recording

(1.01 MiB) Downloaded 12 times

[steve]

If you accidentally do something, and the project is still open, the unintended action can be undone using "Edit menu > Undo ..." (Shortcut: Ctrl + Z).
The "Undo" command will undo the last thing done, and you can undo any number of actions, stepping back to when the project was opened.

Note: The "Undo History" is NOT saved in the project, which means that once a project has been closed, there's no going back.


If you are saying that you inadvertently did something which changed the speed, and then saved the project and closed the project, then unfortunately we can't just "Undo" whatever you did. Is this the case? If so, we need to try to work out what you did, and try to correct it (if possible).
What precisely do you mean by: " It sounds at a high and uncertain speed."?

[steve]

How can I edit an AU file and change the playback speed from high speed to normal speed?

The "AU" files are "data files" for the Audacity project. You should not interfere with them.

An Audacity project has two parts: There is an "AUP" file, and an associated "_data" folder. The two parts must be kept together and not modified in any way outside of Audacity.

To open an Audacity project, use "File menu > Open" and select the AUP file.

[steve]

You may find this quick Tour Guide helpful for getting started with Audacity: http://manual.audacityteam.org/man/auda ... guide.html

[DVDdoug]

First, there is a playback speed control (Transcription Toolbar) so make sure that's set to 1.0. The playback speed control only affects Audacity so if you export to WAV or MP3 the speed will be normal.

If that's not it there is a Change Speed Effect that you can use to slow it back down. Since you don't know what you did you'll have to use trial-and-error, and if you don't have a timing or pitch reference you'll just have to make your best guess at what sounds right.

The Change Speed effect changes speed & pitch together, just like if you change the speed on analog tape or a vinyl record. (There are other effects for changing tempo or pitch independently.)

[kozikowski]

The "AU" files are "data files" for the Audacity project. You should not interfere with them.

Yes, but.

They're also six second sound files and you can play them in Audacity as a troubleshooting tool.

They should sound normal, just short. No idea why it plays off speed.

Don't do anything else. Moving one or renaming one is the kiss of death for your show.

Koz

[steve]

They're also six second sound files

Not exactly. They are "audio data", but unlike a normal "audio format" file, the data they contain is not fully described by the file header. Of particular relevance here; the header does not have any information about the sample rate.

[kozikowski]

header does not have any information about the sample rate.

Ummmm.....

OK......

So what sample rate does it use when all those people with no AUP file claim to have played their show in six second chunks with no mention of any distortion?

Koz

[steve]

So what sample rate does it use when all those people with no AUP file claim to have played their show in six second chunks with no mention of any distortion?

44100 Hz.