Audio refers broadly to the information, be it acoustic or electronic, entering, traversing, or exiting some medium.
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50 views
Network jitter in VoIP [closed]
I am interested about the network jitter introduced in VoIP and, if possible, in video conferencing. Does anyone know where I can find actual traces of VoIP calls and/or video calls so that I can ...
2
votes
1answer
59 views
What is a stereo pair of samples called?
I'm a part of a development team working on an audio processing application. We have the silliest problem that's already caused us some trouble coding. We work with stereo audio signals, and when ...
2
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0answers
334 views
Stream multiple sound sources via mms/rtsp using pulseaudio
I have a server with about 20 different sound capable applications.
Lets say each application gets a ID between 10 and 30.
I could then do it by launching each application by padsp -s ...
0
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1answer
126 views
Cost-effective ways to start a home studio with Pro Tools?
What is the best way to purchase Pro tools and computer in order to run it? I am starting up in creating my own studio and based on your advice and other positive input from many other sources I want ...
2
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3answers
71 views
What is it called when there are several channels of audio playing over a video?
I'm editing a video where there are several channels of audio playing over it.
I have things like background music, sound effects, etc.
Would it be correct to call them audio channels or is there a ...
3
votes
1answer
1k views
How to do live monitoring of audio input on Mac? (i.e. hear the input sound on audio out)
How to do live monitoring of audio input on Mac? (i.e. hear the input sound on audio out)
Is there a generic way to do this or is is application specific?
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1answer
61 views
Where can I find resources for self-learning of audio-video production concepts
My father has an audio-video production studio that I wanted to inherit. However, I majored in computer science and have no clue whatsoever about how audio and video production works. The problem here ...
2
votes
1answer
345 views
What is the equivalent samplerate and bitdepth of FM radio?
At its best transmission quality, what is the equivalent samplerate and bitdepth of FM radio?
Thanks.
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2answers
1k views
How can I cut out background noise from my footage?
I recently shot some video footage and I used the camera's mic (I know it was a bad idea, but...). Unfortunately, there was some on-going background noise (I think it was a fan). How can I get rid of ...
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2answers
598 views
sub-100 pound/dollar SPDIF/coaxial audio input into USB (mac lion and Win 7 64 compatible?)
Can you recommend a sub-100 pound/dollar SPDIF/coaxial audio input device into USB (mac os x lion and Win 7 64 compatible?)
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0answers
153 views
How can I set PulseAudio to use convolution
I'm using Ubuntu 11.04 and PulseAudio.
I made impulse to correct bass response on my speakers and would like to use it globally.
I can set Jack through jack-convolve plugin to use my impulse, but as ...
2
votes
0answers
73 views
Transcoding DV Without Desyncs
I've recorded DV video from my camcorder over FireWire, and it plays fine in OSX. However, when trying to transcode it to H.264 for editing and uploading it to YouTube, the audio desyncs. I've been ...
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votes
2answers
260 views
Why does higher quality audio have lower volume?
Anecdotally I've noticed that higher quality videos, whether be a 1080p HD video on the TV or a BluRay rip on a computer, the volume seems to be lower than a standard quality video. I've noticed this ...
2
votes
1answer
1k views
creating glissando/portamento with piano roll editors
I've been using several Midi sequencers with piano roll editors (Ableton, Reaper) and none of them seem to have a straightforward way to join two or more note events into a single glissando or ...
6
votes
3answers
144 views
How far apart temporally can two sounds be heard while still sounding like they are playing at the same time?
I am trying to synchronize music played on different computers. I've been collecting quantitative information to try to identify sources of asynchrony.
I would like to know how far apart in time two ...
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0answers
64 views
how to play audio file continously [closed]
im using asp.net db is sql server.I have number of audio files added in my project for particular time.
for a fixed time period i have one audio file assigned to play.
my problem is how to play these ...
3
votes
1answer
290 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 ...
3
votes
2answers
135 views
I want to connect my iPod using the headset jack to a portable PA system and am worried about phantom power
I have a Liberty 4500 portable PA system and a headset plug to male XLR adapter.
I am afraid the phantom power from the Liberty PA system will fry my iPod.
How can I prevent it from happening?
3
votes
1answer
673 views
Garageband export volume issue.
Alright, so I have Garageband and Soundbooth. I am composing sounds for a video game in Garageband and have an explosion in the project. I have the volume so that when I play it in Garageband it plays ...
4
votes
2answers
765 views
Why does does my audio go out of sync every time I reencode either the audio or video stream?
I have a video in an AVI container. The video is H264 AVC and the audio is VBR MP3. (I don't know if this is relevant— I recorded it in from an analog video capture card, from a VHS. The ...
2
votes
2answers
133 views
What is the title for someone knowledgeable in all that is related to sound?
I'm basically looking for a title that is more broad than an Audio Engineer.
Basically, I'm looking for a title that would cover a:
Musician (of their preferred instrument and/or more);
Recording ...
4
votes
1answer
319 views
extract specific frequencies from audio
As you can see from the spectrograph, there are two melodic lines in this excerpt. These two voices are played by different instruments. Is there a tool (preferably free) that will allow me to extract ...
5
votes
3answers
688 views
“Subtracting” specific audio using an Isolated track from the same mix.
I have an audio file (Music + Vocals) and I have an instrumental (Music Only). Is there a program or some way I can take the music file and subtract the instrumental leaving only the vocals? (Full ...
5
votes
3answers
122 views
Converting voice into modem sounds
I'd like to record my voice and apply some effects on it. The final result should remind the listener of phone lines or some modem sounds, but only the melody and rhythm of the language should be kept ...
3
votes
1answer
88 views
Extracting conversations from a long WMA-File
I have a few wma-files all about 2h long each.
I was going around with a microphone interviewing people. I did not turn the recording off in order to not miss anything. Now the problem is filtering ...
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2answers
406 views
Appropriate background music for a webapp screencast
I'm making a screencast tutorial of a webapp. It's primarily boring.
Can anyone recommend an appropriate soothing background music from the FCP audio content?
This will be my first time using Final ...
2
votes
1answer
105 views
What are the most common text-based music/audio notation systems?
I am trying to find a good all-text (type able) musical notation system that already exists* and that has some usage and credibility.
Ideally, such a system would allow very simple musical ...
9
votes
7answers
2k views
What are some disadvantages of audacity?
I've been using Audacity for a while and it seems like the perfect recording studio: free, open source, great features, easy to use, its easy to fall in love with. However, I want to have a more ...
2
votes
2answers
146 views
What is the best way to make music play more slowly? (at any arbitrary speed)
And what is the best program to use for that?
6
votes
2answers
930 views
How to eliminate guitar amp hum (software and hardware amps)
There's nothing quite like the sound of a guitar playing into a warm tube amp with the pre turned up high and the post turned down. There's also nothing quite like the hum you get out of one of these ...
8
votes
1answer
149 views
Can opening closed speaker cabinets for service affect the sound?
I have two pairs of speakers that could do with opening them up to investigate problems--one decades-old set of Celestion hi-fi speakers that has developed a rattle, the other a set of M-Audio ...
