audio Archives - Garbage In Garbage Out https://gigoblog.com/tag/audio/ Tech tips & other words Sun, 26 Oct 2025 03:16:15 +0000 en-US hourly 1 High impedance headphones on MacBook Pro 2021 https://gigoblog.com/2021/11/18/high-impedance-headphones-on-macbook-pro-2021/ https://gigoblog.com/2021/11/18/high-impedance-headphones-on-macbook-pro-2021/#respond Thu, 18 Nov 2021 14:42:52 +0000 http://gigoblog.com/?p=735 Good news for audiophiles out there. High impedance headphones are supported on m1 MacBook Pros. Apple’s new laptops feature an adaptive voltage headphone amplifier, meaning it optimizes itself to the headphones you’re using. With these two models, gone is the concern whether 80 ohm or 250 ohm headphones will work. “When you connect headphones with […]

The post High impedance headphones on MacBook Pro 2021 appeared first on Garbage In Garbage Out.

]]> https://gigoblog.com/2021/11/18/high-impedance-headphones-on-macbook-pro-2021/feed/ 0 Adding AC3 Dolby Digital 5.1 multichannel audio to an MP4 without re-encoding https://gigoblog.com/2013/06/30/adding-ac3-dolby-digital-multichannel-audio-to-an-mp4/ https://gigoblog.com/2013/06/30/adding-ac3-dolby-digital-multichannel-audio-to-an-mp4/#respond Sun, 30 Jun 2013 15:22:39 +0000 http://www.gigoblog.com/?p=401 I recently “obtained” some video files which had 5.1 surround sound encoded as AAC, but AppleTV does not play multichannel audio in AAC format. While AppleTV can play back stereo or Dolby Pro Logic II in AAC format, it requires multichannel audio be encoded as AC3. None of these “acquired” MP4s have AC3 5.1 6-channel […]

The post Adding AC3 Dolby Digital 5.1 multichannel audio to an MP4 without re-encoding appeared first on Garbage In Garbage Out.

]]> https://gigoblog.com/2013/06/30/adding-ac3-dolby-digital-multichannel-audio-to-an-mp4/feed/ 0 Mute system audio when increasing/decreasing volume https://gigoblog.com/2007/11/26/mute-system-audio-when-increasingdecreasing-volume/ https://gigoblog.com/2007/11/26/mute-system-audio-when-increasingdecreasing-volume/#comments Mon, 26 Nov 2007 16:42:10 +0000 http://www.gigoblog.com/2007/11/26/mute-system-audio-when-increasingdecreasing-volume/ Here’s a cool tip from The Distant Librarian on how to silence the audio feedback you get when using the keyboard to increase or decrease the volume in Mac OS X. Hold down the shift key while depressing the volume keys will silence the auditory feedback while raising and lowering the volume, but still show […]

The post Mute system audio when increasing/decreasing volume appeared first on Garbage In Garbage Out.

]]> https://gigoblog.com/2007/11/26/mute-system-audio-when-increasingdecreasing-volume/feed/ 2