Search found 6404 matches

by Trebor
Fri Jul 22, 2011 1:54 am
Forum: Audio Processing
Topic: How to amplify after noise removal w/out adding noise
Replies: 17
Views: 6779

Re: How to amplify after noise removal w/out adding noise

The detective insists it is not his recorder, but the recordings I have received from him lately, even when not recorded in large, open places like jail bathrooms, sound like this recording. Could it be the way he downloads/saves the audio files? Yes, an echo effect can be created by accident when ...
by Trebor
Thu Jul 21, 2011 11:36 pm
Forum: Audio Processing
Topic: How to amplify after noise removal w/out adding noise
Replies: 17
Views: 6779

Re: How to amplify after noise removal w/out adding noise

In short the patient is terminal. It sounds like it was recorded via an echoey tube, like an air-vent or drain-pipe. Then way too much compression has been applied which has introduced the whistley R2-D2 artifacts. I’ve attempted to recreate this combination of distortions … before-after attempt to ...
by Trebor
Thu Jul 21, 2011 2:34 am
Forum: Audio Processing
Topic: How to amplify after noise removal w/out adding noise
Replies: 17
Views: 6779

Re: How to amplify after noise removal w/out adding noise

Roxanne1149 wrote:... if it can be fixed.
You could attach a 5-10 seconds of the worst part of the original recording, (before you have attempted to clean it ) to your next post,
and we could tell you if you are flogging a dead horse. Bear in mind anyone can hear and download audio posted in this forum.
by Trebor
Wed Jul 20, 2011 5:33 pm
Forum: Audio Processing
Topic: How to amplify after noise removal w/out adding noise
Replies: 17
Views: 6779

Re: How to amplify after noise removal w/out adding noise

Re: noise removal ... http://forum.audacityteam.org/viewtopic.php?p=115716#p115716 http://forum.audacityteam.org/viewtopic.php?p=106276#p106276 Below is the equalization "curve" for a 300Hz -3000Hz band pass filter ... http://forum.audacityteam.org/download/file.php?id=2698 You could try s...
by Trebor
Wed Jul 20, 2011 2:57 pm
Forum: Audio Processing
Topic: effect(filter) for amplifying by separate wave sequences.
Replies: 12
Views: 4147

Re: effect(filter) for amplifying by separate wave sequences

Do we have any concerns about the hosting? What concerns might there be? The internet archive's Wayback machine has got them in trouble for redistributing material without the authors permission ... Legal status In Europe the Wayback Machine could be interpreted to violate copyright laws. Only the ...
by Trebor
Sun Jul 17, 2011 11:07 pm
Forum: Recording Techniques
Topic: Record from two mics into two separate files simultaneously?
Replies: 11
Views: 3942

Re: Record from two mics into two separate files simultaneou

Trebor, would I be able to save the spectrogram display as a separate file from the actual voice file??? If so, that might work. Hmm... The spectrogram display could be saved as an image using a screen-grab program, (e.g. the free Windows snipping tool ). I’d never heard of an electroglottograph: a...
by Trebor
Sun Jul 17, 2011 6:00 pm
Forum: Recording Techniques
Topic: Record from two mics into two separate files simultaneously?
Replies: 11
Views: 3942

Re: Record from two mics into two separate files simultaneou

If you used Audacity's frequency analysis, or spectrogram display, to a (single) recording of your voice it would show the "vibrations per second", (i.e. frequency), of your voice.
by Trebor
Sat Jul 16, 2011 5:52 pm
Forum: Audio Processing
Topic: Adjusting Volume and Equalizer On Old Music
Replies: 8
Views: 1521

Re: Adjusting Volume and Equalizer On Old Music

A better (free) compressor (plugin) for Audacity ... http://forum.audacityteam.org/viewtopic ... t=+archive
by Trebor
Thu Jul 14, 2011 9:32 pm
Forum: Recording Equipment
Topic: Feedback issues
Replies: 1
Views: 793

Re: Feedback issues

Try disabling "stereo mix", aka "wave out", aka record "what-U-hear" in windows recording devices,
i.e. only record from the USB mixer device, don't simultaneously record the output from Audacity, (which is "what-U-hear").
Recording output => feedback.