WAV vs MP3: WAV for lossless editing, MP3 for smaller sharing files

WAV is uncompressed and lossless, preserving original audio quality for recording and editing, while MP3 is compressed and lossy, removing data to reduce file size.
One minute of CD-quality stereo audio (44.1 kHz, 16-bit) is about 10.6 MB as a WAV file, compared to 0.96 MB for a 128 kbps MP3 and 2.4 MB for a 320 kbps MP3.
MP3 is recommended for sharing, streaming, and voice cloning samples (192 kbps or higher), as it is compatible with virtually any device and avoids the cumulative quality loss from repeated compression during editing.
FLAC offers lossless compression at roughly half the size of WAV, while M4A (AAC) provides quality similar to or better than MP3 at the same bitrate, making it suitable for Apple devices.

Format Specifications and Trade-offs

WAV files are difficult to share via email or messaging platforms due to size limits and longer upload/download times.
MP3 quality varies by bitrate; 320 kbps provides the highest quality, while 96 kbps or lower is noticeably lower quality.
Converting an MP3 to a WAV file increases file size but does not restore the audio data lost during the original compression.

ElevenLabs Text to Speech offers download options including MP3 (128 kbps, 192 kbps, 256 kbps), M4A, FLAC, and WAV.
ElevenCreative Studio export quality depends on the subscription plan: Free, Starter, and Creator plans support 128 kbps MP3 or WAV, while Pro, Scale, Business, and Enterprise plans support 16-bit, 44.1 kHz WAV or 192 kbps MP3.