audio recording

How can I remove distortion from an audio recording?

Audio waveform

Episode 1527

Josh from Austin, TX

Josh has an audio recording that has a lot of distortion. How can he fix it? Leo says he can't, really. Distortion usually means the top end of the audio recording has "clipped" causing the audio to lose the upper end. But the chatroom says that Izotope is a plugin that can repair it somewhat. Since the caller is blind, however, Leo recommends a service called Auphonic. They have professional audio restoration tools that can do the job. There's a free tier and a pay tier.

Can I use an HDMI splitter with a MacBook Air?

The Audiobook Speakeasy

Episode 1499

Rich from Tuscon, AZ

Rich is an audiobook narrator and he just finished building his own vocal booth to record his audio files. But since the booth is so small, he wants to have his laptop on the outside with a monitor connected and a monitor on the inside. WIll an HDMI splitter do the job with a 2012 MacBook Air? Leo says that a splitter can degrade the image quality. The Air also has a mini display port, so he'd need an adapter for HDMI. They're pretty cheap. The Air won't really have an issue with the splitter.

Why am I getting a hum in my recordings with Audacity?

Audacity

Episode 1393

Micah from Maine

Micah uses Audacity and he gets an intermittent hum on his microphone. Leo says that the mic Micah uses is USB and so a hum can't really find its way into the chain because the power is coming from the laptop, not an analog phantom power source. It could mean that the Digital to Audio converter is going bad, but if there's no analog loop, then there can't be a hum. So it must be software.

Can I record and edit audio with a Chromebook?

Episode 1368

Greg from Van Nuys, CA

Greg wants to know if he can use a Chromebook to record and edit audio recordings. Leo says that newer ChromeBooks support the use of Android apps from the Play Store and that would give you access to audio recording apps. There's also multiple cloud-based audio editors where you save in the cloud and edit through the Chrome browser. Here's good list here. Soundcloud. Twisted Wave.

How can I improve audio recording on a smartphone?

Episode 989

Braden from Wisconsin

Whenever Braden uses his smartphone to record, the audio is terrible. Leo says that phones these days use multiple microphones and dedicates one for noise cancellation. If he doesn't have that feature, then an external microphone connected to the phone with an adapter will work. The iRig may be good for that. Audio Technica also makes a microphone that can plug into a smartphone, but it looks like a big stage microphone.