I have a several hundred audio files that are waves, and 8khz mono, but are 32 bit. I need to convert them for the phone system to the following format:
CCITT mulaw (8bit, 8khz, mono, wav)
I was wondering if Audacity script/batch capability will help me accomplish this quickly?
I 'think' the only change it actually has to make is the bit rate from from 32 to 8 bit. I use audacity all the time to make or change to the proper format, but since I have been delivered a lot of files, just wanted to automate that if possible for a quick conversion.
Thank you so much for any help, or any other suggestions that could steer me in the right direction!
-Michael
Script/batch convert WAVs from 32 to 8 bit?
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This forum is for Audacity on Windows.
Please state which version of Windows you are using,
and the exact three-section version number of Audacity from "Help menu > About Audacity".
Audacity 1.2.x and 1.3.x are obsolete and no longer supported. If you still have those versions, please upgrade at https://www.audacityteam.org/download/.
The old forums for those versions are now closed, but you can still read the archives of the 1.2.x and 1.3.x forums.
This forum is for Audacity on Windows.Please state which version of Windows you are using,
and the exact three-section version number of Audacity from "Help menu > About Audacity".
Audacity 1.2.x and 1.3.x are obsolete and no longer supported. If you still have those versions, please upgrade at https://www.audacityteam.org/download/.
The old forums for those versions are now closed, but you can still read the archives of the 1.2.x and 1.3.x forums.
Re: Script/batch convert WAVs from 32 to 8 bit?
Yes Audacity can help.
You need to make a Macro containing the "ExportWAV" command.
Before using the Macro you need to "prime the pump". The ExportWAV command does not have any parameters - it uses the last used settings, so before running the Macro, manually export a file as 8-bit WAV.
If you need to change the sample rate as well, then you will need to add the "Set Project" command before the "ExportWAV" command. In the "Set Project" settings, ensure that "Rate" checkbox is selected, and the required sample rate.
You need to make a Macro containing the "ExportWAV" command.
Before using the Macro you need to "prime the pump". The ExportWAV command does not have any parameters - it uses the last used settings, so before running the Macro, manually export a file as 8-bit WAV.
If you need to change the sample rate as well, then you will need to add the "Set Project" command before the "ExportWAV" command. In the "Set Project" settings, ensure that "Rate" checkbox is selected, and the required sample rate.
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)
Re: Script/batch convert WAVs from 32 to 8 bit?
This is not working for me. The export window is defaulting to Windows 16bit every time it's invoked, and if I change it to custom, I can export custom, but then the following macro export is executed using the default Windows 16bit anyway.
Re: Script/batch convert WAVs from 32 to 8 bit?
Which version of Audacity do you have? (look in "Help menu > About Audacity").
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)