VU Meter Pro
Pro metering. Anywhere.
$9.99 · Designed for iPad. Not verified for macOS.
Version 1.5 is here. Significantly lower input latency for live work, plus a wide-range VU display (−40 to +10), the NAVY theme, and Input Trim expanded to ±5 dB.
VU Meter Pro is a professional audio metering app for broadcast, streaming, and live sound.
It combines an analog VU meter with a loudness meter, phase meter, LED bar meter, and waveform display. Arrange the meters you need on screen to match each on-site workflow.
Connect any USB class-compliant device (audio interface, mixer, recorder, camera, switcher, and more) with a single USB cable and start measuring right away. Use it as a portable meter in the field, or as a fixed tool in the studio.
Works on both iPhone and iPad.
What it measures
· Audio level (analog VU meter / LED bar)
· Loudness (Momentary / Short-term / Integrated / True Peak / LRA)
· Loudness history (graph display, up to 24 hours)
· Waveform (Waveform Scope, up to 30-minute history, pinch-to-zoom)
· Phase (Lissajous + correlation meter)
Standards-based measurement
Loudness measurement follows ITU-R BS.1770 and conforms to EBU R128 / EBU Mode (Tech 3341 and 3342) and ARIB TR-B32, at 48 and 96 kHz. Measurements are verified against reference signals.
ITU-R BS.1770 is the measurement standard widely adopted by national broadcast loudness practices such as ATSC A/85 (US) and OP-59 (Australia), which target −24 LKFS.
Built for the field
· Responsive, real-time metering
· Standard and wide-range VU scales (−20 to +3 / −40 to +10)
· Seven meter themes for different lighting conditions and preferences
· Input Trim (±5 dB) for level calibration
· Peak-hold readouts for easy reading at a glance
Launch and measure. No setup required.
This app is built and maintained by a working engineer in radio, audio, and video production, for use in the field. Visibility and operational reliability are the top priorities.
Use with an external audio interface. The built-in microphone is not suitable for accurate measurement.
· Significantly improved input latency for more responsive metering in live settings.
· Added a wide-range VU display (−40 to +10) for checking wider dynamic range.
· Added the NAVY meter theme.
· Expanded the Input Trim range from ±1 dB to ±5 dB.
· Improved loudness measurement accuracy (True Peak / LRA / Integrated), revised to follow the ITU-R BS.1770 and EBU standards more strictly.
· Fixed an issue where LRA was not displayed correctly at 96 kHz.
· Fixed an issue where loudness history stopped recording while the Settings screen was open.
· Added Japanese help text, switchable within the Help screen (iPad).
· Various UI refinements.
The developer, Tomoaki Shimizu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Tomoaki Shimizu
- Size
- 4.3 MB
- Category
- Music
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - iPad
Requires iPadOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © BLUETREE Cloud.
