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Trans Voice HQ

Trans Voice HQ
  • #: 211632
  • Price: $0.99 In Apple Store
  • Category: Music
  • Updated: 2010-12-15
  • Current Version: 1.3
  • 1.3
  • Size: 0.40 MB
  • Language: English
  • Seller: Masayuki Ishizuka
  • Requirements: Compatible with iPhone 3GS, iPhone 4, iPod touch (3rd generation), iPod touch (4th generation), and iPad. Requires iOS 4.0 or later.
  • © 2010 Masayuki Ishizuka
  •  Add to Favorite apps



Trans Voice can change your voice gender in real-time!

It affords separate control of pitch and formant in real-time(low latency).


If your voice is too loud,

Trans Voice will not operate properly.

You can convert your voice from Mic or recorded file.

(the maximum recording time is 30sec)

Input source: Mic

converts your voice form built-in Mic or head set Mic directly.

The output is headphone jack or receiver.

(Connecting headphone jack to audio line in of PC,

you can use your iPhone as a mic on Video chat and so on.)

Input source: File

converts your voice from recorded file.

When you start playing recorded file without the headphones,

the output is built-in speaker.

Formant Shift:

Formants are fixed frequency regions of emphasis that are an important element in determining how a voice sounds.

Trans Voice can change formants(-1 octave -> +1 octave).

If you change formants to higher, your voice is changed as if your vocal tract have become smaller (like a woman or child).

If you change formants to lower, your voice is changed as if your vocal tract have become larger (like a man or giant).

Pitch Shift:

changes the pitch of you voice

(-2 octave -> +2 octave).


corrects your voice pitch.


fixes your voice pitch.


adjusts the volume balance between the transformed voice and the original voice.

System Requirements:

iPhone 4, 3GS or 3rd generation iPod touch.

(3G iPod touch requires Apple Stereo Headset or similar compatible headset)

-External speakers are recommended.

◊You can listen samples on my site.

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Rated 2/5 based on 2 customer reviews.


2/5 stars

Needs work

I hope the creators of this app continue to work on it. It has an amazing potential if they can work out the static sound with every playback. While I was messing around I found that if you turn on they keyboard and set it to the low C there is a huge difference in the static. Also, the mic is a lot better than the file playback.

I've been listening to myself through my headphones and I have found that there is a much clearer voice modulation if you hold your device at arms length from you. Don't talk loud and do not put the mix any higher than 78% of the 0 line because you will get this strange robotic sound. The format shouldn't go much higher than 45% as well because of the same effect.

Modifying your voice to a lower pitch is a lot better than bring the pitch up. I found that when I had the mix at about 78%, the format at about 18-20%, the keyboard on on the low C and the bar dragged to the highest point, I got the best sounding female voice fit for me. Unfortunately, though, there is still a disrupting static in the background.

Once the creators can somehow get a better sounding recording then this app will be one of the greatest. At this point, however, I wouldn't suggest buying it.

3/5 stars

Meh, weak as described.

I want a realtime voice changer for puppet shows. This barely does the job and I can't even get the pitch changing to work.


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The information may be outdated (2011-04-27 05:43:37). For actual information go to iTunes

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