I have a couple Android recordings that I need to convert to wav, so I went to use my copy of audacity-freeworld to do the conversion. It crashed on opening the flie. I have the LAME files and haveworked with mp3 files fine in the past.
I cannot find anything about problems on this.
Anyone know anything about it or other methods to convert amr files?
On Thu, 11 Feb 2016 15:12:43 -0500 Robert Moskowitz rgm@htt-consult.com wrote:
I have a couple Android recordings that I need to convert to wav, so I went to use my copy of audacity-freeworld to do the conversion. It crashed on opening the flie. I have the LAME files and haveworked with mp3 files fine in the past.
AMR is *not* mp3.
I cannot find anything about problems on this.
I don't think you looked very hard.
Anyone know anything about it or other methods to convert amr files?
"The amr file extension is for Adaptive Multi-Rate compressed audio. Adaptive Multi-Rate (AMR) is an audio data compression scheme optimized for speech coding."
Use a tool like sox to convert the files to mp3 or wav directly.
sox /mypath/my_audio.amr /mypath/my_audio.mp3 or sox /mypath/my_audio.amr /mypath/my_audio.wav
Then work with them in audacity. When you are done, if you want them back in amr, reverse the process with sox.
On 02/11/2016 07:02 PM, stan wrote:
On Thu, 11 Feb 2016 15:12:43 -0500 Robert Moskowitz rgm@htt-consult.com wrote:
I have a couple Android recordings that I need to convert to wav, so I went to use my copy of audacity-freeworld to do the conversion. It crashed on opening the flie. I have the LAME files and haveworked with mp3 files fine in the past.
AMR is *not* mp3.
I am aware of that. But one reference I found claimed that amr support was in the LAME libraries.
I cannot find anything about problems on this.
I don't think you looked very hard.
It is well documented that my search foo is weak.
Anyone know anything about it or other methods to convert amr files?
"The amr file extension is for Adaptive Multi-Rate compressed audio. Adaptive Multi-Rate (AMR) is an audio data compression scheme optimized for speech coding."
That I found. Nice to know it is a nice TLA.
Use a tool like sox to convert the files to mp3 or wav directly.
sox /mypath/my_audio.amr /mypath/my_audio.mp3 or sox /mypath/my_audio.amr /mypath/my_audio.wav
Then work with them in audacity. When you are done, if you want them back in amr, reverse the process with sox.
Actually my first choice was to use audacity to do the conversion. Thus I was trying to load amr into audacity. Audacity should not crash hard on loading a codec it does not understand.
Given these were a couple speaches I captured and the person wanting them only has Media Player 12 (and the knowledge base info on adding amr to that is pretty obtuse), I was asked to send it as wav. I found a website to upload to for the conversion. I checked the output and did not find any mal stuff dropped in. So that is done.
I use VLC to listen to my amr recordings.
I used yumex and searched it for amr, and that did not offer sox. Google search on amr conversion to wav did not offer sox. But thanks to you, I know this now and will give it a try.
thanks
On Fri, 12 Feb 2016 13:25:54 -0500 Robert Moskowitz rgm@htt-consult.com wrote:
[snip]
Actually my first choice was to use audacity to do the conversion. Thus I was trying to load amr into audacity. Audacity should not crash hard on loading a codec it does not understand.
Correct. It should give a message that the codec is unknown. This is a bug if it isn't something wrong with the amr files.
Given these were a couple speaches I captured and the person wanting them only has Media Player 12 (and the knowledge base info on adding amr to that is pretty obtuse), I was asked to send it as wav. I found a website to upload to for the conversion. I checked the output and did not find any mal stuff dropped in. So that is done.
I use VLC to listen to my amr recordings.
I used yumex and searched it for amr, and that did not offer sox. Google search on amr conversion to wav did not offer sox. But thanks to you, I know this now and will give it a try.
I did a web search and found someone recommending sox for amr conversion. I've used sox for batch conversions in the past, it's really handy for that.
There was mention of another conversion program that handled amr (mik???), but I hadn't heard of it before so recommended sox instead.
Am 13.02.2016 um 01:49 schrieb stan:
On Fri, 12 Feb 2016 13:25:54 -0500 Robert Moskowitz rgm@htt-consult.com wrote:
[snip]
I did a web search and found someone recommending sox for amr conversion. I've used sox for batch conversions in the past, it's really handy for that.
There was mention of another conversion program that handled amr (mik???), but I hadn't heard of it before so recommended sox instead.
amr support for sox (amr-nb and amr-wb) is in sox-plugins-nonfree, which you can install from the the RPM Fusion nonfree repo: http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-23.n....
BTW, audacity-freeworld loads an amr-wb file quite well for me, so your crashes might have other reasons. Perhaps this thread about audacity crashes might help: https://lists.fedoraproject.org/pipermail/users/2015-August/464231.html
Robert might try removing ~/.audacity-data.
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Klaus-Peter Schrage -
Robert Moskowitz -
stan