The signal-processing tag has no wiki summary.
6
votes
2answers
403 views
Can I record a sound frequency I can't hear and play it back so I can hear it?
Can I record a sound frequency I can't hear and play it back so I can hear it?
If yes, How?
6
votes
1answer
168 views
In which situations is Audio Expansion applied (opposite of compressors)?
I've encountered from time to time some plugins that allows a threshold and a ratio to be set so that quieter sound can have an even more quieter level (or silenced altogether). Ableton Live actually ...
5
votes
3answers
583 views
Low Pass Filter?
I've constantly heard about the Low-Pass (or High-Pass) filter, but I am confused. I read that it works on cancelling out certain frequencies that are below (or above) a certain threshold.
However, ...
4
votes
3answers
266 views
What do various sounds look like on the wave spectrum
I am trying to understand some basics of the acoustic theory.
Can someone in their own simple words explain what are the differences between the waves on two different instruments playing the same ...
4
votes
5answers
675 views
How to amplify mans voice in a noisy recording?
There is a party and as usual people are grouped. We have 2 groups - in first there is a woman who is telling a story at the moment. In second, there is a man, telling interesting anecdote. We have 7 ...
3
votes
1answer
80 views
Ascending Hi Cut Filter?
I Tracked a guitar track and for a certain section there is a transition guitar part, and it would sound amazing with an ascending hi cut filter, but i have no idea how to implement that into the ...
3
votes
2answers
84 views
Removing tonality: antitune
What kind of processing would you apply to an audio track to remove its tonal quality (its pitch), leaving sound with the same texture as the original but ambiguous pitch? For example, a drum sound ...
3
votes
1answer
281 views
What's the difference between a vocoder and a harmonizer?
As a follow-up to this question: What is the difference between Autotune and a Vocoder?, let's get into the nitty-gritty about vocoders and harmonizers.
For example, in Imogen Heap's famous Hide and ...
2
votes
1answer
41 views
How do I capture or create first-person audio?
I was wondering how I might capture or create audio which sounds like it's being heard first-person. For example, there's a scene in Being John Malkovich where the viewer sees through Malcovich's ...
2
votes
2answers
48 views
How to fix an audio-set with wrong levels
I have a set of 300 audios. I use those files in an App, as the voice of an animated character.
So, the thing is, that I can't find a process that take the audio, and "normalize" its levels to make a ...
2
votes
1answer
87 views
How to amplify & clean up a weak reel-to-reel recording for converting to digital?
I am in the process of converting old reel-to-reel and cassette tape recordings to digital. One reel-to-recording from the early 70’s of my first band is real weak. When I amplify the sound the tape ...
1
vote
3answers
194 views
What causes the limitation on excessive analog signals vs. digital signals?
In the digital world, "clipping" would occur when a signal passes above 0db.
But if you are dealing with analog equipment, is there a certain "ceiling" that tends to "brickwall" the signal down as ...
1
vote
1answer
617 views
Which DSP / VST / AU / RTAS external units exists to offload audio processing from internal CPU?
I'm looking for a list of products that allows the user to install and run their own purchased VSTs, AU, RTAS or any other kind of audio plugin - on an external device dedicated for running virtual ...
1
vote
1answer
122 views
Frame rate conversion during playback for maximal smoothness
So I watch my 25 fps DVD on my 60Hz LCD monitor... For now lets assume everything is progressive scan.
It seems that current DVD programs (and all media players on PC's, like youtube, vlc, etc.) ...
1
vote
1answer
59 views
Do I need an amplifier to listen to the signal audio coming from a DAC?
I'm planning to use a DAC (digital-analog converter) to convert signal from an optical/toslink connection (Apple TV) to my speakers with 3.5 analog jack.
I'm wondering if I need an amplifier or if I ...
1
vote
0answers
127 views
Low Pass Filter? [duplicate]
Possible Duplicate:
Low Pass Filter?
I've constantly heard about the Low-Pass (or High-Pass) filter, but I am confused. I read that it works on cancelling out certain frequencies that are ...
0
votes
2answers
52 views
how to remove sound clipping in existing record [duplicate]
I have an old record that has some clipping effect that happened during recording. This is a song, so i can't just cut out all frequencies probably ... is there any smarter way around to get rid of ...
