Author Topic: Will disable audio make smaller files?  (Read 455 times)

5uneyes

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Will disable audio make smaller files?
« on: September 05, 2018, 02:27:07 PM »
First, THANKS for this great piece of software!!!

In the following months I will be doing a lot of filming but I definitely don't need audio. I wonder if I can save space (ie produce smaller files) by disabling audio.

I know I can use Canon's "disable audio" option and this works for native H.264. But...
1) is there a way to disable audio for RAW video recording (or any/all video recording in ML anyway)?
2) and most importantly, would an audio-less video file occupy less space than a video with audio?

Thanks!

Walter Schulz

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Re: Will disable audio make smaller files?
« Reply #1 on: September 05, 2018, 02:48:56 PM »
WAV bandwidth calculation is not exactly rocket science:
Sampling rate x Bit depth (x2 for stereo) = 44,100 Hz x 4 Byte = 176,400 Byte/s = 172.27 KiByte/s.
BTW: CD data rate is base for SD and CF flash memory speed index: 600x = 600x CD data rate. THey use 150 KiByte/s because of error correction, though.
Photogs and videographers: Assist in proof reading upcoming in-camera help!. Your input is wanted and needed!

5uneyes

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Re: Will disable audio make smaller files?
« Reply #2 on: September 05, 2018, 04:14:41 PM »
OK thanks, from your reply I understand (correct me if I'm wrong) that  I save 176,400 Bytes for each second of video when using "disable audio" in RAW video, right?

allemyr

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Re: Will disable audio make smaller files?
« Reply #3 on: September 05, 2018, 05:03:18 PM »
Save and save :) 176400byte is 0.18 megabyte which is nothing compared to raw recording which is around 90mb/s.

5uneyes

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Re: Will disable audio make smaller files?
« Reply #4 on: September 05, 2018, 05:11:44 PM »
ok so basically it makes no difference  ;)
Thanks!!