<p>The settings say Stereo. The doubling of file size might indicate that the original file was mono.</p>

CC BY-SA 3.0
2015-05-14T18:58:53.570Z
2015-05-14T18:58:53.570Z
TotalForge
<p>In Sony Vegas Pro 10 I've placed an <code>.mp3</code> file (about <strong>3MB</strong> file size), then I've cut it slightly at the end to <strong>shorten the length</strong>. I've tried to encode it with following settings:</p>

<pre><code>File - Render As  
Save As Type: MP3 Audio  
Template: Default Template  
Description: Audio: 256 Kbps, 44,100 Hz, 16 Bit, Stereo, MP3
</code></pre>

<p>The encoded file is about <strong>6MB</strong> and it seems that the resulting file is the same quality as original.</p>

<p>How can I render <code>.mp3</code> without getting a larger file size than the original?</p>

CC BY-SA 3.0
2015-05-13T17:09:33.703Z
OK, the output is 256kbps / 44.1K. But what are the sample rate and bit rate for the original file?
Jim Mack
CC BY-SA 3.0
2015-05-13T17:12:29.510Z
@JimMack, how can I check this data, pls?
qadenza
CC BY-SA 3.0
2015-05-13T18:43:23.090Z
Use [Mediainfo](https://mediaarea.net/de/MediaInfo). I don't really know Vegas, but it should have some sort of metadata display as well ...
MoritzLost
CC BY-SA 3.0
2015-05-15T04:21:54.070Z
My guess would be that the original file was not recorded at 256kbps, but something lower like 192 or maybe even 128.
user1118321
<vegas-pro><compression>
Rendered mp3 file is much larger than original
qadenza
# Rendered mp3 file is much larger than original

(Asked by: username_0 on 2015-05-13)

In Sony Vegas Pro 10 I've placed an .mp3 file (about 3MB file size), then I've cut it slightly at the end to shorten the length. I've tried to encode it with following settings:
File - Render As  
Save As Type: MP3 Audio  
Template: Default Template  
Description: Audio: 256 Kbps, 44,100 Hz, 16 Bit, Stereo, MP3

The encoded file is about 6MB and it seems that the resulting file is the same quality as original.
How can I render .mp3 without getting a larger file size than the original?

**Tags:** vegas-pro, compression

> **Comments:**
> **username_1**: OK, the output is 256kbps / 44.1K. But what are the sample rate and bit rate for the original file?  
> **username_0**: @JimMack, how can I check this data, pls?  
> **username_2**: Use [Mediainfo](https://mediaarea.net/de/MediaInfo). I don't really know Vegas, but it should have some sort of metadata display as well ...  
> **username_3**: My guess would be that the original file was not recorded at 256kbps, but something lower like 192 or maybe even 128.  

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## 1 answers

### Answer by username_4 on 2015-05-14. Score: 1

The settings say Stereo. The doubling of file size might indicate that the original file was mono.


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