Editing Audio from Camasia using Audacity (5 minute Screencast Tutorial)
Whilst speaking with Daniel Foster at TechSmith I decided to create a short video that shows you how to use the free Audacity audio-editor to gain more control over your audio editing than CamTasia provides.
Note - The Screencasting Handbook covers this and lots more if you’re making your own screencasts, come and take a look.
Topics covered include:
- Removing background noise (you can do this for all the audio or just sections)
- Silencing periods with breathing and lip-smack noises
- Fading in and out to cover-up harsh cuts
- Dynamic range compression
- Normalisation
- De-essing using the volume control
I also discuss a way of positioning your mic to reduce the chance of recording strong sibilants and tell you how to get better control over aligning your audio with video actions.
The audio clip used is from my ie6update introduction screencast of yesterday.
Take a look here:
Ian produces professional screencasts (ProCasts, twitter), writes The Screencasting Handbook and blogs (IanOzsvald.com).
The Editing Audio from Camasia using Audacity (5 minute Screencast Tutorial) by ProCasts' Blog about Professional Screencast Production, unless otherwise expressly stated, is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England License.
You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.
April 27th, 2009 at 11:45 am
[...] noise like birds, traffic, rain can’t really be removed. You can try with a tool like Audacity but the general rule is that you should always start with the cleanest audio recording you can [...]
May 25th, 2009 at 11:17 am
[...] of the quality of your product. Always use a good mic in a quiet environment and perform an audio clean-up step in post-production if [...]
August 22nd, 2009 at 8:11 am
[...] Improve you audio – use a tool like Audacity to record, clean and edit your narration before you edit it into your screencast (screencast guide to narration editing with Audacity) [...]
August 25th, 2009 at 6:54 pm
[...] speaking, Jay’s breaths can be heard and background hiss is is present. Audacity is a great tool for de-noising and fading out unwanted sounds like breaths. Cleaning this up would add a further [...]
November 13th, 2009 at 1:57 pm
[...] a de-noiser means I had to export each audio track, import it into Audacity, de-noise the audio (as discussed here) and import the cleaned track back into FlashBack. This process took about 15 minutes per [...]
November 14th, 2009 at 1:14 pm
[...] was used and that has a built-in de-noiser system that can remove the hiss. Alternatively my Audacity tutorial for Camtasia gives further ideas for cleaning up the [...]
November 21st, 2009 at 5:49 pm
[...] this Audacity screencast tutorial for instructions on de-noising, range compressing and editing your narration using [...]