Convert OPUS to AU Files Online for Free.

Q: Can I convert a file from a streaming service like Spotify?

A: While we can’t directly extract audio from streaming services like Spotify, you can record the audio first and then upload it to RunConvert. Just remember, ensure you're following all legal guidelines when recording or downloading.

Q: Can I convert audio for different types of devices?

A: Totally! Whether you're converting for a smartphone, a computer, or a special device like a smart speaker, we offer the formats that will work perfectly across all devices. No matter the platform, your file will be ready to go.

Q: Can I convert a recorded phone call to text?

A: While we can’t convert audio to text, you can use transcription tools to turn your audio call into text, and then run the text through your desired process. Audio to text conversion might be something we add in the future!

Q: What’s the best audio format for high-quality podcasts?

A: For podcasts, we recommend using MP3 with a bitrate of at least 128kbps to ensure high-quality sound while keeping file sizes manageable. FLAC is another great choice if you’re after the best sound quality, though the files will be larger.

Q: What’s the best format for music streaming on my device?

A: For music streaming, MP3 is often the most compatible format across devices, but FLAC is perfect if you want the best audio quality. If you’re prioritizing smaller file sizes, MP3 is the way to go!

Q: Can I convert audio to different formats for use in my audio library?

A: Yes, you can! Whether you’re building an audio library for personal or professional use, RunConvert can help you convert your files to the formats that best suit your needs—MP3, FLAC, OGG, and more.

Q: Can I convert multiple audio formats into one file?

A: You can't merge different audio formats into one file directly, but you can convert them into the same format first and then combine them. There are audio editors available to help you merge files once they’re in the same format.

Q: What’s the fastest way to convert a large audio file?

A: To speed things up, make sure the file isn’t too large before uploading. RunConvert can handle big files, but keeping them under 200MB will ensure quicker conversions. Otherwise, just be patient—it’ll be worth it!

Q: How do I convert an audio file for use in an educational video?

A: For educational videos, you’ll want an audio file that’s both high quality and compatible with most video editing software. MP3 or WAV are your best options, and you can easily convert any audio you have into these formats.

Q: How long will it take to convert my audio file?

A: Most of the time, the conversion takes just a few minutes. However, it depends on the file size and the format. Larger files or more complex conversions can take longer, but we’ll get it done as quickly as possible.