Video converts without audio
Ask iLounge offers readers the opportunity to get answers to their iPod-, iPhone-, iPad-, iTunes-, or Apple TV-related questions from a member of the iLounge editorial team. We'll answer several questions here each week, and of course, you can always get help with more immediate concerns from the iLounge Discussion Forums. Submit your questions for consideration using our Ask iLounge Submit Form. We reserve the right to edit questions for grammar, spelling, and length.
Q: I used iTunes 6.0.2 to convert a video file to one that is compatible with the iPod, but in doing so it has removed the sound track. Why would this be, and is there any way to avoid this?
A: QuickTime Pro and all applications which depend on it (iMovie, iTunes, and several 3rd party conversion programs) simply do not support the conversion video files which are “Muxed,” or multiplexed. This means that the video has been encoded such that the audio and video are stored in a single track, rather than independently.
Unfortunately, muxed MPEG files are fairly common, necessitating for all but casual users one of the third-party conversion utilities which support it. On the Mac, our favorite iPod-specific video conversion utility, Podner, supports muxed audio, as do several options on the PC.
Alternatively, non-iPod specific “demuxing” utilities exist on both platforms, which create an intermediate video compatible with iTunes’ converter.
To determine if the video you’re trying to convert is muxed, open it in QuickTime, and select “Show Movie Info” from the “Window” menu.
- Will removing a credit card from Safari also remove it from Apple Pay?
- Can I mute Handoff calls coming into my Mac from my iPhone?
- How do I keep my iPhone calls from ringing on my Mac?
- Why doesn’t Traffic show up on my Today Notifications Screen?
- Why doesn’t my iPhone reconnect to Wi-Fi after I turn it on?
- Why can’t I see the iPad-style landscape view on my iPhone 6 Plus?
- Apple enables Single Sign-On across all iOS 10 and tvOS 10 devices
- Apple releases fifth beta for tvOS 10.1 to developers
- Apple to start publishing its AI research
- Supreme Court rules against Apple in design patent case
- Study finds half of kids headphones exceed safe volume limits
- More iPhone 6s devices affected by shutdown bug; iOS update coming
- Apple releases sixth beta of iOS 10.2 to developers
- Developers pushing back against abusers of Apple’s App Store refund policy
- Apple lobbies for shared data, more public road access to test autonomous driving systems
- Apple Store app update allows purchases from Apple Watch
- Sen.se GuardPeanut
- iHome iZBT10 Zenergy Bedside Sleep Therapy Speaker
- Twelve South HiRise Duet for Apple Watch and iPhone
- IK Multimedia iLoud Micro Monitor
- JBL Under Armour Sport Wireless Heart Rate Headphones
- Edifier e235 Luna E Speaker System
- Clamcase ClamCase+ for 9.7” iPad Pro
- Scosche BoomBottle H2O+ Waterproof Wireless Speaker
- Thermos Connected Hydration Bottle with Smart Lid
- Beats Solo3 Wireless On-Ear Headphones
- Top Five: The Best Products for Building a Smart Home with HomeKit
- Instant Expert: Secrets & Features of watchOS 3
- Instant Expert: Secrets & Features of tvOS 10
- Instant Expert: Secrets & Features of iOS 10
- Inside the betas: iOS 10 Photos gets Advanced Computer Vision
- Inside the betas: iOS 10 Music app delivers ‘clarity and simplicity’
- Inside the betas: iOS 10 Maps gets a major redesign
- Inside the betas: iOS 10 shakes up the user experience
- Inside the betas: watchOS 3 promises a real speed boost
- Inside the betas: A sneak peek at what’s new in tvOS 10