Spectrum vs Spectrolite

This app generates some visual effects from your music library or microphone. More than 50 effects included. [Usage] 1. Tap the music button. 2. Select your songs from music library. These songs should be on your device. When interstitial advertisement appeared, after several seconds, a close button will be shown. [ About the Premium Version ] In the Free version, the banner ads or watermark will be displayed screen bottom. The full screen advertisement will be displayed after playing the song or after a certain period of time. And only limited contents are available. In the premium version, ads will not be displayed. And all contents are available. [Premium Version Prices] - Forever : $9.99 - 1 Year : $8.99 - 6 Months : $4.99 - 1 Month : $1.99 [ About Subscription ] • Payment will be charged to iTunes Account at confirmation of purchase • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable [ Usage ] https://yuuki.ws/apps/spectrum/help [EULA & Privacy Policy] https://yuuki.ws/apps/spectrum/EULA-PrivacyPolicy.html

Spectrolite visualizes sound as spectrograms in real time. Spectrolite supports constant-Q spectrograms, which use a logarithmic frequency scale for a display where musical notes are evenly spaced. Spectrograms based on linear and mel frequency scales are also supported. The display covers the full frequency range of human hearing. Intuitive touch panning and zooming lets you dive in and explore the spectrograms in detail. Gain, Q, and other parameters can be adjusted in real time and instantly apply to the display of past signals as well as future ones. The Pro in-app purchase adds grids and scales for time, frequency, and amplitude, as well as a spectrum view and a tap-to-measure function. This expands Spectrolite into an audio measurement tool that you can use to measure frequencies, musical pitches, amplitudes, and durations.