A New Vocal Tone for the Same Melody and Lyrics

You’re happy with the tune and the words, but the voice doesn’t quite fit. Perhaps it sounds too sharp for a gentle verse, or too soft for an energetic chorus. You want a different vocal sound without starting the song again.

ACE Studio’s Voice Changer works with an existing vocal recording to change its vocal character while preserving the melody and lyrics. The key is to start with a performance you like, choose a suitable voice, and check the result against the original. Voice conversion guide

Make a source song in ACE Music before changing its vocal in ACE Studio

If you do not have a recording yet, start in ACE Music: enter your words in Custom → Lyrics and describe the arrangement in Style. We used the original English lines below to generate two versions of “Leave the Window Open.” Compare the finished results in Library, then download the version you want to study as MP3. A new generation is a different song performance; it is not the same thing as replacing the voice on an existing recording.

[Verse]
The rain has left a silver line
Across the window next to mine
[Chorus]
Leave the window open
Let a little daylight in

Enter the original English words to be sung in Custom → Lyrics.

Intimate English acoustic pop with gentle piano, brushed drums and a clear single lead vocal. Keep the melody simple, the phrases unhurried and the backing restrained so the vocal can be studied separately.

Describe the musical direction in Style, check the title and lyrics, then select Generate.

The completed versions are now available in Library. Select each one to compare how the same input develops.

Open Download for the selected result, choose MP3 and confirm the download.

• Listen to English version 1
• Listen to English version 2

For this example we imported the first, approximately 73-second result into ACE Studio and used Basic: Vocal + Instrumental to separate it. Keep the full mix as a reference, but feed only the separated vocal into Voice Changer. There is no need to reconstruct this recording as MIDI or type its lyrics again. The English audio examples below are our generated demonstration, not a recording supplied by a customer.

The downloaded ACE Music mix is open in Studio’s audio editor; Stem Splitter is available below the audio controls.

Start with the Right Recording and a Clear Goal

Choose a recording you own or have permission to use. The sung notes and words should already be right for your song.

If you have a separate vocal recording, use it as your source and keep the original instrumental alongside it. If you only have a finished song with vocals and instruments mixed together, you’ll need to isolate the vocal first.

Decide what you want to hear differently. Timbre means the character of a sound: a voice might feel warm, airy, bright, or husky. A useful listening goal could be: “Keep this melody and these words, but try a warmer voice for the verse.”

Write that as a note for yourself when choosing voices. Start with a short passage containing both a quiet phrase and a stronger note, so your comparison covers more than one kind of delivery.

Convert the Vocal in a Few Steps

Import your recording into ACE Studio by dragging it onto an audio track or an empty track. Supported formats include WAV, MP3, M4A, and FLAC. Audio import instructions

For a full mix, select its region on the Canvas, open Stem Splitter, and choose Basic: Vocal + Instrumental. Run the split to obtain separate vocal and instrumental tracks. Listen to the extracted vocal before continuing. Stem Splitter instructions

Then work with the vocal:

1. Select a complete phrase on the Canvas and open Voice Changer from the main toolbar.
2. Browse Voices. Click a voice’s picture to preview its sound, then select it. You can select multiple voices for a batch conversion.
3. Check the settings. To avoid deliberately changing pitch or timing, keep Semitones at zero, leave Pitch correction off, and set Random offset to zero.
4. Use the instrumental-removal or reverb-and-harmony-removal options if needed.
5. Run Convert. The converted clips appear below the timeline. Voice Changer controls

Keep the source available for comparison. Two contrasting candidates are a manageable starting point.

Worked comparison: one source vocal, two conversion models

We converted the same 0–73-second vocal range with the Emma and Elirah Voice Changer models, using Semitones 0, Pitch correction 0 and Random offset 0. Instrument removal and reverb removal were off for this conversion because a separated vocal was already supplied. The links are isolated vocal exports over the same range, not a new ACE Music generation or a MIDI resynthesis. They retain the leading and ending silence of that range. Compare the sung words, note movement and consonants yourself; these settings avoid requesting a pitch or timing change but do not guarantee identical detail or an artifact-free result. The BPM badges in the arrangement are separate automatic estimates, not evidence that we time-stretched the clips.

The separated vocal is a new audio file with pauses between phrases. Check it before choosing a replacement voice.

The source vocal, Emma conversion and Elirah conversion remain on separate tracks. Only the Emma track is unmuted in this view.

• English vocal reference — separated source
• English vocal comparison — Emma conversion
• English vocal comparison — Elirah conversion

What Changes—and What You Keep

The intended change is the vocal’s timbre. The source provides the melody and lyrics, so the task begins with a sung performance whose composition is already settled.

However, conversion can also affect aspects of vocal style. A different voice may make a phrase feel softer or more assertive. Preserving the melody and lyrics does not mean every expressive detail will sound identical.

The accompaniment needs its own consideration. If you have the original instrumental file, you can keep using it while replacing the vocal. If you extract the instrumental from a full mix, separation may leave audible artifacts. That gives you a starting point to assess, rather than a guarantee of an untouched backing track.

Check the Result and Know the Limits

Compare the source and converted passage at similar listening levels. A louder version can seem more impressive even when its tone fits the song less well.

Listen to the vocal alone first. Follow the highest note, any quick run, and the end of a sustained note. Read along with the lyrics and check whether short words and consonants remain clear. Pay attention to whether a stronger note becomes harsh or a quiet line loses its natural feel.

Next, bring in the instrumental. A soft voice may disappear behind a dense arrangement. A more forward voice may make a reflective lyric feel too forceful. Judge the sound in the song, not only in isolation.

If something sounds wrong, compare the same moment in the source. A damaged word ending or leftover instrument may already be present after separation. In that case, review the extracted vocal or use a cleaner recording if you have one. If the problem appears only after conversion, try another target voice and compare again.

Change one thing at a time. This makes it easier to understand whether the source, the chosen voice, or a setting is affecting the result.

Use the New Vocal in Your Song

Once a candidate works on your test passage, convert the full vocal region and listen through the song. Check section transitions, quiet endings, and notes outside the range of your initial test.

Combine the chosen vocal with the instrumental. Mute the original vocal and any original full-mix track so the old singer doesn’t play alongside the replacement.

For export, open File → Export Audio. Choose Selected tracks for separate audio files or Master for the combined mix, and check the export range. WAV is suitable for further production; MP3 is convenient for listening and sharing. Audio export options

Keep both the original and your chosen version so you can revisit the decision.

Frequently Asked Questions

Do I need to enter the lyrics or create MIDI notes?

No. ACE Studio’s Voice Changer processes an existing vocal performance. You can keep a lyric sheet nearby to check pronunciation, but this workflow does not require you to recreate the song as notes and text.

Can I change only the chorus?

Yes. Voice Changer operates on a selected region of the Canvas. Select the chorus’s vocal region, then check how the new voice sounds at the transitions into and out of that section.

Is this the same as using ACE Music’s AI Cover?

No. AI Cover generates a new complete musical version, including accompaniment. Its instructions ask to preserve the melody and lyrics, but phrasing and timing can vary. Voice conversion is more suitable when you want to change an existing vocal’s sound. AI Cover details