# Manipulating large audio files

**URL:** <https://www.ruby-forum.com/t/manipulating-large-audio-files/77844>\
**Category:** Ruby\
**Created:** [March 7, 2006, 3:56pm UTC](https://www.ruby-forum.com/t/manipulating-large-audio-files/77844 "2006-03-07T15:56:14Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![alex789](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alex789](https://www.ruby-forum.com/u/alex789)\
**Post date:** [March 7, 2006, 3:56pm UTC](https://www.ruby-forum.com/t/manipulating-large-audio-files/77844/1 "2006-03-07T15:56:14Z")

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Hi.

I’m looking for a ruby library to manipulate large audio files (\>  
1GB). The files will typically be too large to hold in RAM. I need to  
be able to stretch the files by very small amounts (like half a second  
over the course of an hour.) I also need to pad with silence.

alex

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<div class="post-metadata">

**Author:** ![alex789](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alex789](https://www.ruby-forum.com/u/alex789)\
**Post date:** [March 7, 2006, 4:08pm UTC](https://www.ruby-forum.com/t/manipulating-large-audio-files/77844/2 "2006-03-07T16:08:47Z")

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On Tue, 7 Mar 2006, Alex P. wrote:

> Hi.
> 
> I’m looking for a ruby library to manipulate large audio files (\>  
> 1GB). The files will typically be too large to hold in RAM. I need to  
> be able to stretch the files by very small amounts (like half a second  
> over the course of an hour.) I also need to pad with silence.
> 
> alex

check out gridflow.

-a

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<div class="post-metadata">

**Author:** ![alex789](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/bc8723/32.png) [@alex789](https://www.ruby-forum.com/u/alex789)\
**Post date:** [December 7, 2006, 2:42am UTC](https://www.ruby-forum.com/t/manipulating-large-audio-files/77844/3 "2006-12-07T02:42:54Z")

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Hi everyone,

I checked out gridflow but it seems to be used only for video or  
pictures.

See: [http://gridflow.ca/latest/doc/format.html#Picture/Movie\_Formats](http://gridflow.ca/latest/doc/format.html#Picture/Movie_Formats)

What do you guys use when you need to edit or handle large mp3 files  
with Ruby?

unknown wrote:

> On Tue, 7 Mar 2006, Alex P. wrote:
> 
> > Hi.
> > 
> > I’m looking for a ruby library to manipulate large audio files (\>  
> > 1GB). The files will typically be too large to hold in RAM. I need to  
> > be able to stretch the files by very small amounts (like half a second  
> > over the course of an hour.) I also need to pad with silence.
> > 
> > alex
> 
> check out gridflow.
> 
> -a