6
votes
Why do some audio amps use AC while others use DC
Is AC current fundamentally better as a working current when it comes to amplifying audio signal?
No. If anything, using an AC power supply makes it more difficult to have low noise.
The circuits ...
- 1,578
5
votes
Accepted
Why do some audio amps use AC while others use DC
The type of current is actually completely irrelevant as all transmitted power is AC. Unless you are driving your amplifier from batteries, everything has to be converted at some point to DC.
The end ...
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5
votes
Accepted
Recording multiple microphones tightly synchronised
Virtually all modern audio interfaces for computer use have clock-synchronized sampling across all inputs. This is a prime requirement for most ordinary multi-track recording. It would be difficult ...
- 1,869
4
votes
Accepted
What dBFS threshold should I set for differentiation between silence and NOT silence
This question, as stated, is not answerable. The answer is "it depends". What you need to determine is the noise level in the file. Silence is rarely silent, but there is a large difference between ...
- 8,162
3
votes
Accepted
Low microphone volume, even with phantom power enabled in my audio interface software
A 57 doesn't need phantom. It won't hurt it, it just has no use for it at all.
With no further info, testing is done by swapping out/comparing each component - mic, cable, interface - to see whether ...
- 8,560
3
votes
how to separate an audio file based on different speakers
I don't know of anything that will do this automatically - perhaps some advanced broadcast reporter software [Hindenburg springs to mind], but that's outside my area. Many DAWs could do it manually at ...
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3
votes
Accepted
can you combine a high passed signal and low passed signal to get original signal
As long as you have identical rolloff characteristics - slope and frequency, the mix of the two will be identical to the original signal.
Whether the filter alters phase or not depends entirely on ...
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3
votes
Accepted
Digitize vinyl on PC (TT > Stereo Amp > USB Audio Interface > PC recording software)
Use the Marantz as your pre-amp. Route the audio out of one of its 'Recorder' outputs. This should give you consumer-level output, nominally -20dB.
Input to the Behringer on a switchable input mic/...
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3
votes
How to improve guitar tone for recording?
In addition to @frcake's excellent answer, I have a few points:
I have been gigging for over 30 years and I still have trouble getting some sounds I want. One solution that most guitarists go for is ...
- 5,973
3
votes
Can I record a sound frequency I can't hear and play it back so I can hear it?
I would like to expand on the caveat in @Rory Alsop's answer, since to me he answers one part of your question (can I play it back so I can hear it?) while relegating the arguably far less trivial ...
- 293
3
votes
Accepted
What you need to know to create a software synth?
You need to understand sound sources (oscillators, noise generators, and samples), modulation (LFO in particular), sound shaping (envelopes), and then signal processing (read: math and audio physics). ...
- 146
3
votes
Which DSP / VST / AU / RTAS external units exists to offload audio processing from internal CPU?
Another option is to look into Sonic Core's products. Originally, the PCI card-based hardware was developed by CreamWare, but Sonic Core acquired them, and developed the Xite series of hardware based ...
- 31
2
votes
i need a singer simulator or virtual singer?
Alter Ego Bones (free) Standalone, VST % AU 64bit - wi;; sing and speak whatever you type in to it, same presets are provided in English and Japanese, there are also add-on voices which are not free.
...
- 21
2
votes
Time resolved sound measurment
A microphone usually measure pressure variation or pressure gradient of the acoustic sound wave at the transducer location. That means that the atmospheric pressure (what you possibly call ambient ...
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2
votes
Combining two clicky copies of the same record into one good recording
Honestly, I think you'd have a much simpler task if you tried some de-clicker software on the best of the pair than attempt to keep two independently-recorded analogue tracks in prefect phase-sync for ...
- 8,560
2
votes
How to improve guitar tone for recording?
As a rule of thumb, closer to the center is trebly , closer to the ring is mellower - more bassy.
Electric guitar recording is a world of it's own, many people go to insane extends to hunt the tone ...
- 1,539
2
votes
Accepted
Is it legitimate to use a low pass filter on short segments of audio around stitch between two amplitude signals to remove noise?
The answer is to be found in understanding what a crossfade is. A crossfade can be either "Constant Level" or "Constant Power". One is linear, one is logarithmic in shape.
You need to build a table ...
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2
votes
Accepted
Audio Signal Difference Extraction
In one sense, the answer from "audionuma" is correct, a similar process is possible in both Ableton and Audacity. In Ableton, all the tools you need to do this are contained in the "Utility" plug-in, ...
- 758
2
votes
What is a Codec Input?
Codec is a term used for "Coding" and "Decoding" of audio. You might use a codec when you are "encoding" your audio as another format for transmission over networks or other transport layers. You ...
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2
votes
Why is this audio obfuscation algorithm not working?
The process you are using is not going to work, as you have a one-to-one mapping of input to output. Any time you do that, patterns exist that relate to the original.
This type of algorithm has been ...
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1
vote
Detect which microphone is spoken into
The most common solution to this issue is to use a Dugan Auto-mixer. This is either a standalone piece of hardware or a software feature built into some of the more modern digital mixers, for instance ...
- 8,835
1
vote
Can a circuit designed for mono jacks work with stereo jacks?
you cannot do this. if you try and apply a stereo signal to a mono pedal, you will get a mono signal out.
- 8,835
1
vote
Accepted
Can steady-state noise contain a fundamental frequency?
First impressions are that there are some contributors to your project - possibly one of the 'referees' and the other laughing colleague that you mention - that don't understand the difference between ...
- 8,835
1
vote
Move high pitched sounds from left to right speaker
What app you could use is going to depend on what OS you're on. I've always found Windows to be a bit iffy for audio routing; things like Voicemeeter Banana [which I've never tried], but idk how they ...
- 8,560
1
vote
What's the easiest way to utilize the stereo tracks on my Zoom L-12 as microphone inputs?
You might want to read This PreSonus Article But you should be fine to connect a balanced TRS to TS. But are you really needing 10-12 mic inputs? you'd be better off buying a mixer with more inputs. ...
- 1,020
1
vote
Video As Audio?
I once tried recording a video signal as audio on a vhs tape, if you squinted at it you could make out the original image on things with sharp contrast, it obviously did not get the colour burst so it ...
- 11
1
vote
Accepted
Quick and dirty demo creation for hearing loss presentation
I don't know if this will satisfy the "dirty" part, but you could use a free (freeware/open source) digital audio editor to get it done quickly and cheaply.
I'd suggest using Audacity. It's a popular,...
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1
vote
What do you call someone who programs software for producing, reproducing or processing audio?
I would recommend a dual major between your current major and computer science. Computer science is going to be the main degree behind developing software as it involves how to break down a problem ...
- 8,162
1
vote
i need a singer simulator or virtual singer?
I created 2 virtual singer plugins that are pretty realistic, here are the links:
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Only top scored, non community-wiki answers of a minimum length are eligible