ShiftAudioFormat
BlogTry Free

Audio Format Guides

Platform specs, conversion tips, and best practices for audiobook authors, musicians, podcasters, and DJs.

5 min read

How to Get Your Suno Songs on Spotify: WAV, LUFS, and Endings Explained

Suno gives you an MP3 — Spotify distributors want 16-bit WAV at the right loudness. Here's exactly how to make AI-generated music distribution-ready, free, in your browser.

Suno to SpotifySuno WAVAI music distribution
9 min read

How to Pass the ACX Audio Quality Check (and Fix Failures)

What ACX's automated quality check actually measures, why files fail, and exactly how to fix RMS, peak, noise floor, and format failures before you resubmit.

ACX audio checkACX quality check failedACX rejection
8 min read

Podcast Loudness Standards: LUFS Explained (-16 LUFS and Why It Matters)

What LUFS actually measures, the loudness targets for Spotify, Apple Podcasts, and YouTube, why -16 LUFS is the podcast standard, and how to hit it without clipping.

podcast LUFSpodcast loudness-16 LUFS
6 min read

ACX Audio Requirements: The Complete Guide for 2026

Everything you need to know about ACX audio specs for Audible. Sample rate, bitrate, RMS levels, noise floor, and common rejection reasons — with a free conversion tool.

ACX audio requirementsAudible specsaudiobook format
5 min read

How to Convert Audio for Spotify: Format, Bitrate & Loudness Specs

Complete guide to Spotify's audio requirements for music, podcasts, and audiobooks. Learn about format specs, loudness normalization, and how to prepare files for upload.

Spotify audio formatSpotify specsSpotify loudness
8 min read

Best Audio Formats for Music Production: WAV vs FLAC vs MP3 Explained

A producer's guide to audio formats. When to use WAV, FLAC, AIFF, MP3, AAC, and OGG — for recording, mixing, mastering, distribution, and DJ sets.

WAV vs FLAC vs MP3best audio formatmusic production format
6 min read

SoundCloud Upload Specs: Audio Format & Quality Guide

SoundCloud audio requirements for uploads — recommended formats, file size limits, transcoding quality, and how to get the best sound on SoundCloud.

SoundCloud upload formatSoundCloud specsSoundCloud audio quality