MP3 Converter vs Qr reader

[MP3 Converter-Video to Audio MP3 and other formats] is a simple-to-operate, powerful audio and video format conversion and audio editing tool with various functions for operating audio. Cropping: Supports free cropping of audio and precise control of cropping time Variable speed: 0.1 to 4 times speed, you can choose Fade out and in: supports audio start and end gradients from 0 to 5 seconds Volume adjustment: 0-100 volume adjustment, no longer worry about the volume being too loud Audio splicing, reverberation Supports freely changing the order of splicing audio, and reverberating different audio at the same time format conversion Supports the conversion of audio formats such as mp3, m4a, m4r, aac, wav, flac, caf, etc., and also supports the conversion of video formats such as mp4, mkv, 3gp, m4v, mov, avi, f4v, etc. Special feature Audio extraction: Extract audio from video with one click Vocal separation: separate vocals and background sounds Set as ringtone: Convert audio to ringtone with one click and easily set ringtone for incoming calls Audio Reverse: Play audio backwards to experience a different kind of fun Volume gain: Increase the audio volume appropriately to make the sound brighter Auto-Renewal 1. Payment: After the user confirms the purchase and makes the payment, it will be credited to their iTunes account. 2. Cancel subscription: If you need to cancel the subscription, please manually turn off the auto-renewal function in the iTunes/Apple ID settings management 24 hours before the current subscription period expires. After cancellation, no further charges will be made. 3. Renewal: The Apple iTunes account will be charged within 24 hours before the expiration. After the deduction is successful, the subscription period will be extended for one subscription period. Privacy Policy: https://docs.google.com/document/d/1i_5KSJ3RchkF-mT3IZo5kXz5EAbw5cktAIX90ejPn0c/edit?usp=sharing Terms of Use: https://docs.google.com/document/d/1xCJFPsbwypCZrKEI9Y8DRCy1ki7X-ahugxTWo_dZ9Ac/edit?usp=sharing

Generate QR code: Generate QR codes for different types of content, such as email, messaging, YouTube, Twitter, Instagram links. Scan QR code: You can scan the QR code in the album or use a camera to scan the QR code. Custom color: Abandoning black and white QR codes, different colors and background colors can be set for the QR code. Automatic Renewal Service Statement Payment: After the user confirms the purchase and makes the payment, the amount will be credited to their iTunes account. Unsubscribe: To unsubscribe, please manually disable the auto renewal feature in iTunes/Apple ID settings management 24 hours before the current subscription period expires. After cancellation, no further fees will be charged. Renewal: Apple iTunes account will be charged within 24 hours before expiration. After successful deduction, the subscription period will be extended by one subscription period. Privacy Policy: https://docs.qq.com/doc/DVHZTYVhrTmJFWGlR Terms of Use: https://docs.qq.com/doc/DVG9WU3VobU1yRWFU