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Questions tagged [audio-processing]

14 questions
19
votes
2 answers

How to increase volume on multiple MP3s at once?

I know how to use Audacity to increase the volume of one MP3 at a time. What I have is a folder of audio files and I'd like to increase the volume of all of them without the need to open each one separately in Audacity. Any good solutions out…
andersonbd1
  • 555
12
votes
2 answers

How do I automatically split an audio file where a tone occurs?

I have an audio recording in which 1 kHz tones divide its segments. There are so many segments that it would take a while to use Audacity to manually split the file. Is there an automatic plug-in or program to do this?
PleaseStand
  • 5,029
8
votes
3 answers

How to remove unwanted noise peaks in sound files in Windows?

How can I remove the peaks in the top channel shown in the image? They are noises. This image is from audacity
Siva
  • 175
3
votes
2 answers

Is there a way to process audio in realtime?

If I record an audio segment with my Yeti I can remove the white noise or noise from my fan with Audacity's Noise Reduction, and it works pretty well. Is there any way to process this effect in real-time, for Skype, Teamspeak, etc.? I tried to do a…
Insane
  • 2,922
2
votes
1 answer

Why does lower latency of audio devices translate to higher CPU consumption?

I'm wondering what the relation is between operating an audio device at a lower latency and it using more CPU power. Can you explain it to me?
Hedge
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  • 35
2
votes
2 answers

How do I create a WAV file that only plays on rear speakers?

How do I create or convert a WAV file to play only with rear speakers. What Windows/Linux software could I use to do that? I tried to use Audacity but with no results.
Amateur
  • 21
  • 2
2
votes
2 answers

Pitch changing plugin for Winamp?

Is there a free Winamp plugin that can change the pitch of the music (in real time, so no Audacity or stuff like that) by a number of semitones? The ones I've found are either not free or too old. Alternatively, what others music players support…
Javier
  • 3,935
1
vote
0 answers

How to determine whether audio is music or not

I would like to listen to talkshows and newsreports from a certain radio station but not to their music. How do I automate the process of detecting the music, and silencing the stream? Currently my only solution is to turn down the volume…
Costin Gușă
  • 714
1
vote
0 answers

Remove Noise from m4b (audiobook) file

I have an audiobook in m4b-format (with metadata such as chaptermarks etc) that unluckily contains a high pitched background noise. What is the best tool/workflow for OS X to remove this unwanted noise while preserving the metadata? I've already…
Julian
  • 111
1
vote
2 answers

Huge file sizes/huge amount of space taken up when I drag and drop MP3s into Audacity (200 MB to 10GB+) - how to prevent that?

When I drag and drop MP3s (about 200 MB) into Audacity, Audacity somehow takes up a huge amount of hard-disk space (10GB+). (This though is temporary. Once I've exited Audacity and not saved the "project", the 10GB+ of space that was taken up is…
user2071051
  • 172
1
vote
0 answers

FFMPEG command to merge audio, video and BGM files for a specific final video file

Given: A video file (Video1) An audio file (Audio1) A background music (BGM) file (BGM1) Task: Create a new video file (OutputVideo) with the following specifications: a. Video Track: Identical to the video track of Video b. Combination of…
Subharaj Bhowmik
  • 11
0
votes
0 answers

Make recorded voice sound like specific tenor / actor?

This might seem unusual but I need to edit an audio file(wav) that is saying some sentences for a presentation and make it sound like a certain tenor that I can find audio samples in the Internet. I have basic knowledge of Audacity and Goldwave. Any…
Dragos
  • 1,547
0
votes
0 answers

How would I separate left and right audio from a soundcard into two inputs, and later combine them together

I have a Steinberg UR22 mk2 soundcard, which I use for my mic and for my guitar, and I can set it up so that my mic is the left channel and my guitar is the right channel. Is it possible to separate the two channels into recording devices, so that I…
Degenerette
  • 1
-2
votes
3 answers

How to prove authenticity of an audio recording?

Hypothetical Situation: I have a recording which has proof that my friend is plotting to kill a a foreign ambassador. Being one who always sticks for what is right, I plan to disclose these plans. How do I prove that these files weren't edited or…
undo
  • 6,129