ways to convert audio from mono to stereo?

target wrote on 6/29/2025, 5:06 PM

so i know you can right click an audio clip in vegas and go to -> Channels -> Combined but doing this for every audio clip seems a bit tedious to be honest.

i'm just using vegas to record voice overs; over my video. is there perhaps a menu in the audio track where u can record as stereo rather than mono? OBS studio has this feature where if your microphone is mono, you can click mono and it'll record the audio as stereo.

 

thanks!

Comments

Gid wrote on 6/29/2025, 5:35 PM

@target This script will change selected events from stereo to mono.

Go to C:\Users\'name'\OneDrive\Documents\Vegas Script Menu, duplicate (copy & paste) one of the cs files, rename it keeping the .cs extension at the end & replace the contents with the script below. This will then show in Tool - Scripting. You can pin scripts to the Toolbar at the top of the Vegas UI.

using System;
using System.Collections.Generic;
using System.Collections;
using System.IO;
using System.Text;
using System.Windows.Forms;
using System.Globalization;
using System.Drawing;
using System.Runtime;
using System.Xml;
using ScriptPortal.Vegas;

namespace Test_Script
{
    public class Class1
    {
        public Vegas myVegas;

        public void Main(Vegas vegas)
        {
            Vegas myVegas = vegas;

            foreach(Track myTrack in myVegas.Project.Tracks)
            {
                foreach(TrackEvent evnt in myTrack.Events)
                {
                    if (evnt.Selected && evnt.IsAudio())
                    {
                        AudioEvent aevnt = (AudioEvent)evnt;

                        aevnt.Channels = ChannelRemapping.Mono;
                    }
                }
            }
        }
    }
}

public class EntryPoint
{
    public void FromVegas(Vegas vegas)
    //public void FromVegas(Vegas vegas, String scriptFile, XmlDocument scriptSettings, ScriptArgs args)
    {
        Test_Script.Class1 test = new Test_Script.Class1();
        test.Main(vegas);
    }
}

 

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rraud wrote on 6/30/2025, 11:20 AM

If you have Sound Forge, the stereo file can be converted to mono in a few seconds and overwritten or just created as a new mono 'take'. If file size is a concern, this will also half the size of a stereo PCM.
FWIW, I recently mixed a two-hour concert with 30+ stereo tracks, Most of the instrument tracks were dual-mono PCM files, so I converted those to single-channel mono to conserve space and efficiency.

rraud wrote on 7/2/2025, 11:09 AM

convert audio from mono to stereo

I just re-read this topic title: Why in the world do you want to convert a single mic mono VO recording to stereo. It typically not necessary.

Howard-Vigorita wrote on 7/2/2025, 8:48 PM

The only way I know how to get stereo from one mic is to use a fig-8. Which is essentially mid-side without any possibility of width control. It used to be popular with solo folk singing guitarists with one lobe aimed up at their mouth and the other down at their acoustic guitar. As well as duos and groups singing in a circle around the mic. I've seen some British fx units that sandwich reverb inside of a mid-side encode/decode loop but I don't think they'll work with a single omni or directional mic.

Dexcon wrote on 7/2/2025, 10:51 PM

iZotope have a plugin named Ozone Imager 2 which has the ability to 'stereoize' a mono audio track giving the mono audio a stereo sound. From the product webpage:

Stereoize can turn mono into stereo, with no need for reverb or doubling. Use the new Stereoize II mode for subtle enhancement, or Stereoize I for a colorful phasing effect.

The plugin processes the sound; however, it the audio track itself remains a mono one-channel track.

You may wish to try it out to see if it does what you want - and the good news is that Ozone Imager 2 is free ... though presumably an iZotope account (now part of the Native Instruments group) will need to be created if you don't already have one.

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rraud wrote on 7/3/2025, 10:33 AM

I use iZ's Ozone Imager's 'Stereoize' option and it is decent.. and free. A mono event or file would needs to have two channels though.
Another free Stereoizer plug-in is Voxengo's Stereo Touch. It is more complex than the Ozone Imager and can have disastrous results if not used judicially .

Regarding the original topic, I would not use either of the above on narration, nor would I transcode the original mono file to stereo.