Search found 6404 matches

by Trebor
Sun Jan 27, 2013 8:39 am
Forum: Windows
Topic: Please assist with the very BASICS
Replies: 9
Views: 1410

Re: Please assist with the very BASICS

If you are trying to record the sound your computer is making using Audacity, see ... http://manual.audacityteam.org/o/man/tutorial_recording_audio_playing_on_the_computer.html If you have the video file on your computer, Audacity can quickly extract the sound from it if you install something called...
by Trebor
Fri Jan 25, 2013 2:44 pm
Forum: Audio Processing
Topic: Trying to find how quickly a series of sounds plays
Replies: 14
Views: 2803

Re: Trying to find how quickly a series of sounds plays

Yes but I need such a figure for this file for each beepstyle: http://www.filedropper.com/123monovstr ... The more accurate the method the better. Millisecond accuracy is needed. "123monoVstr" group 1 (between 2-7seconds) : @ 2200Hz ten pluses take somewhere between 0.490 and 0.498 of a s...
by Trebor
Thu Jan 24, 2013 1:41 pm
Forum: Audio Processing
Topic: Trying to find how quickly a series of sounds plays
Replies: 14
Views: 2803

Re: Trying to find how quickly a series of sounds plays

They should be roughly 50 ms apart ... As can be seen from the spectrogram in my previous post , the different frequencies in the beeps have different durations: 1300Hz harmonic is about twice as long as the one at 1800Hz, so the gap between when one beep ends and the next begins depends on what fr...
by Trebor
Thu Jan 24, 2013 10:04 am
Forum: Audio Processing
Topic: Trying to find how quickly a series of sounds plays
Replies: 14
Views: 2803

Re: Trying to find how quickly a series of sounds plays

flamin' 'orrible wallpaper.gif
My estimation between 190-195 milliseconds apart
flamin' 'orrible wallpaper.gif (107.45 KiB) Viewed 1683 times
Proceesed triple bleep form ''singlebeeps''.wav
(120.63 KiB) Downloaded 88 times
by Trebor
Thu Jan 24, 2013 4:06 am
Forum: Windows
Topic: Recording result sounds thin out of phase
Replies: 3
Views: 1694

Re: Recording result sounds thin out of phase

I have disabled every software enhancement I can find on the speakers, etc. I have turned off, I believe, Beats Audio. The computer uses motherboard audio. I was thinking of purchasing a sound card to try to get away from the problem - it just seems like something to try. Any suggestions? The sound...
by Trebor
Wed Jan 23, 2013 4:07 am
Forum: Audacity 2.x Feedback and Reviews
Topic: Large files
Replies: 8
Views: 2423

Re: Large files

Attached is "coming soon to a theatre near you" as mono 32kbps CBR MP3. The first half is directly from the sample from Trebor. The second has been pre-filtered at 6 kHz (6000 Hz) and has noticeably less "artefacts" without sounding too muffled. Is that "pre-filtered" ...
by Trebor
Wed Jan 23, 2013 3:50 am
Forum: Audio Processing
Topic: Can you help me EQ/process my live MP3 recording?
Replies: 37
Views: 12021

Re: Can you help me EQ/process my live MP3 recording?

Trebor, did you export your remix at 256kb? I usually use 256kbps, but as Koz says mp3, (even at 256kbps), is going to add more compression damage because mp3 is lossy compression format. FLAC format is a loss less compression format, but the compression ratio is only 1:2 whereas mp3 can be 1:10 i....
by Trebor
Tue Jan 22, 2013 6:58 am
Forum: Audacity 2.x Feedback and Reviews
Topic: Large files
Replies: 8
Views: 2423

Re: Large files

Mono yes. That helps a lot. However: from 44100Hz (default) to 22025Hz My money is that doesn't work I just tested that and you're right, the bit rate (kbps) defines the size of the mp3 file, (I'm getting WAV and MP3 properties confused :oops: ) However there are less digital artifacts if you use a...
by Trebor
Tue Jan 22, 2013 3:08 am
Forum: Audacity 2.x Feedback and Reviews
Topic: Large files
Replies: 8
Views: 2423

Re: Large files

I'm trying to reduce a 25MB streamed audio (talking) mp3 file to 4 or 5MB to email a short (and smaller) clip. If it's only talking (not music) you could try changing the sample rate (project rate bottom left) from 44100Hz (default) to 22025Hz and exporting with a MP3 bit rate of 64Kbps. Also reduc...