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Questions tagged [wav]

WAV (or WAVE), short form for Waveform audio format, is a standard format audio file from Microsoft and IBM for storing audio on PCs.

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ffmpeg stereo to mono loses audio quality

I am trying to extract audio (wav) from a mp4 file and keep only 1 channel but the output wav file is all noise. I use this command to extract audio: ffmpeg -i test.mp4 -ar 32000 -ac 1 out.wav ...
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1answer
25 views

How can I break the WAV file into multiple WAV files each containing one word [duplicate]

I have a WAV file of a human reading simple sentences ("hello world"). How can I break the WAV file into multiple WAV files each containing one word ("hello" and "world") by automatically recognizing ...
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90 views

Convert NMF (Nice Media File) audios to Wav or MP3

How can I use ffmpeg to convert NMF audios to WAV or MP3 massively?
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1answer
115 views

How to convert mp3 to wav without losing metadata?

How can I convert an mp3 file to wav without losing metadata with ffmpeg? This happens whether I convert from mp3 or if I'm re-encoding a wav file, it doesn't make a difference. I tried adding -...
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0answers
30 views

ffmpeg shortening wav file when converting from pcm

I am using this command to convert large pcms (90 mins recording) into wav files: ffmpeg -f s16be -ar 11025 -ac 2 -acodec pcm_s16be -i f7.pcm f7.wav The wav I get back is usually about 50 - 65 ...
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0answers
238 views

Extracting metadata from wav files

I was curious if there is a way to extract metadata from wav files. For instance, can you get bpm, key, instrument, etc. from a .wav file on upload?
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1answer
155 views

Concatenate and loop MP3 files

I want to concatenate and loop 3 MP3 files. grammaraudio1.mp3 grammaraudio2.mp3 grammarsudio3.mp3 The output file must loop the first MP3 file five times, then the second one 5 times, etc. Can I ...
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2k views

FFmpeg - convert WebM/Opus to WAV or FLAC in single step?

I want to create WAV and FLAC audio files from WebM files with Opus audio streams, and I want to do so without further degrading the audio. I am currently using a 2-step process as follows (WAV ...
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4answers
665 views

What is the loudest sound that can be stored in a .wav file?

Is there a limit on how loud an audio file can be? There probably is a limit to stop people from breaking their ears, but I don't know what it is.
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1answer
404 views

How to view the periodogram or FFT of a WAV file in Audacity?

I’m trying to visualize the periodogram (or the Fourier transform (FFT)) of a WAV file (not a spectrogram produced by a sliding window). Is it possible to do this using Audacity?
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1answer
418 views

FFmpeg concat demuxer is changing bitrate

I am using the concat demuxer to concat some wav files. ffmpeg -safe 0 concat -i files.txt -c copy output.wav files.txt stores files as: file 'C:\Users\folderpath\input1.wav' file 'C:\Users\...
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1answer
530 views

arecord: Create large (7 days) audio recording

For a scientific experiment, we're trying to create a large (7 day) audio recording using arecord from alsa on a RasPi using a USB microphone. The pipeline for the recording is as follows: arecord -f ...
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1answer
39 views

Is it possible to use Audacity as a simple sample editor?

It's a weird question but here's my workflow. I want to be able to open a WAV file from other DAWs, like Ableton or Reason in Audacity. Apply some effects and maybe do some slicing, then get the ...
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0answers
76 views

route live audio output to live .wav file

i found this nice visualisation program: https://www.youtube.com/watch?v=VVrf89SXvTM i really like it, but it can only play *.wav files in the same folder as the program executable is. but i want to ...
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1answer
530 views

shntool splits .wav files at the wrong split points

I am on Ubuntu 16.04 LTS, and I am using the most recent version of the Oh My ZSH shell. I am using shntool (specifically shnsplit) from the terminal to split .wav files for albums into separate ...
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1answer
879 views

How can I delete .wav metadata without changing any of its features?

I have to delete additional info from .wav header so it can be processed by another program. After some search I have tried to use ffmpeg, for example: ffmpeg -y -i $filename -map_metadata -1 -codec ...
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2answers
631 views

Lossless conversion from wav 24bits to flac

Is it possible to have a lossless conversion from a wav file Stream #0:0: Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 1 channels, s32, 1152 kb/s to a wav file ? I tried using ffmpeg : ffmpeg -...
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1answer
330 views

Is it possible to trigger a script when a .wav audio file is played?

At work we have this software that monitors our door system, we want to run a script each time someone enters the office. One thing it can do is play .wav files. We would want to run a different ...
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0answers
276 views

Get A-Weighted RMS of a wav file? [closed]

Is there a CLI program working on Linux (Debian, more specifically Raspbian) that could extract the RMS (Root Mean Square) of a wave file and return it? At the moment I am using sox (aka rec) to ...
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4answers
5k views

Which audio format truly has the best sound quality? [closed]

I've been to every website, and I've heard again and again that FLAC (Free Lossless Audio Codec) has the best sound quality AND it compresses the file. But I'm wondering if there is a format with ...
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2answers
336 views

How to generate a time dependent frequency wave?

I want to create a sound whose frequency is time-dependent, let's say that the frequency of time ms is timeHz, hence in 20 s you have all the audible frequencies. Just as an example, with ffmpeg you ...
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2answers
32k views

How can I record audio to wav format?

When I use Voice Recorder, it always saves it as a .m4a, but I need the file as a .wav. I know it is possible using Sound Recorder in Windows 7, but Windows 10 seems to use a different program. Is ...
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1answer
535 views

How can I convert this RIFF WAVE .bin file?

I'm trying to extract some audio from a program, and I've got as far as getting a .bin file. When I open this file with a hex editor, the first line is RIFF ÷! WAVEfmt 4. I've done some research, and ...
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2answers
3k views

Quality of wav files using youtube-dl

I'm trying to download music from YouTube site using youtube-dl with the best quality possible. So I've tried to download as a WAV file with this command: youtube-dl -ci -f 'bestvideo[ext=mp4]+...
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190 views

WAV Audio File Repair with Audacity: Increase Speed and Remove Repeated Gaps

I have a corrupt mono wav file: 16 bit PCM 44100Hz - mono. It is a recording of 2 voices. Voice 1 can be heard if the speed is increased by 5 times exactly. Voice 2 is heard if the "gaps" / silences ...
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1answer
1k views

ffmpeg Audio Conversion m4a to wav - file size bloat

While converting audio files from *.m4a to *.wav using ffmpeg (and other audio converters - I've tried a few and cannot remember but they were worse) the file size increases by a lot (10x). original ...
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1answer
4k views

Read wav file header - possibly with audacity - on linux

On ubuntu linux, I want to be able to inspect a wav file such that I can read the wav header to determine the format. I have the tool audacity which, as an audio tool seems pretty good, but I can't ...
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1answer
329 views

Maximum number of files that can be merged in SoX?

For anyone who has experience with the sox audio tool, what is the maximum amount (in MB) of files you have tried to merge? So far I have merged up to 925MB worth of wav files and have not had ...
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1answer
4k views

Combining .wav files from the command line

I am currently in a directory with command prompt open, and combining wav files using the command copy /b *.wav allAudio.wav There are 29 wav files in this directory, each of them exactly 00:00:59 ...
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1answer
803 views

Fix *.wav to *.mp3 with ffmpeg in command line? [closed]

Something happened when I converted Mp3 to Wav. The music lost quality, how can I get back Mp3 Quality with ffmpeg or anytools using command line?
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1answer
1k views

Cannot convert MP3 to wav to burn audio CD

I have made a mp3 recording using Perfect recorder app on Windows 8 Phone Lumia 635. I have transfered this 2 mp3 files to a Windows 10 PC. I can play this files without any problem in Windows media ...
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0answers
75 views

Remove sections of audio in SoX

What's the easiest way to remove the specified sections of a wav file using SoX? Right now I use the trim command to break up the file and then concatenate the parts. However, that seems a little ...
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1answer
2k views

Convert Wav to Ogg

I have a folder with a large number of Wav files which I wish to convert to Ogg. How do I do this for the latest release of Mac Os X. I have tried to run Drop Ogg X but it does not work, complaining ...
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1answer
597 views

Is WAV (PCM) format bit rate is really CBR?

You know, all modern audio codecs bit rate modes are VBR, even if you restrict the settings to for example: MP3 128 CBR, the encoded result is between 120 to 135 ( a bit different with different ...
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1answer
1k views

How to create MP3 from WAV without silence at the start and end?

I´m creating MP3 files from WAV in FL Studio. But in created MP3 file is a very short silence (for example 0.02 sec) at the beginning and at the end of the file. In my program, I want to merge these ...
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1answer
767 views

How can I join multiple wav/flac/audio cds into one master big audio file (>4gb)

I have multiple Audio CDs that I want to merge into one final flac or mp3 file. For example I have 10 audio cds. I can encode each CD into its single wave/flac file, or even mp3, but then I need to ...
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0answers
64 views

One VLC instance for different file types

Is it possible to have two instances of VLC Media Player, one that plays WAV files exclusively and the other that plays MP3 files exclusively? I have to often listen to some WAV sound effects files to ...
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0answers
174 views

Recover Corrupt Audio Data (files visible but not accessible)

I'm was doing PA and recording at a medical conference this weekend but have hit distaster with corrupt data. Was recording a .WAV file using a line into a Tascam DR-40 audio recorder. Recorded about ...
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2answers
2k views

Why Is Conversion From An MP3 To WAV (PCM) Lossless?

I understand that when converting between audio formats where no stream encoding is involved like when converting between WAV (PCM), AIFF, FLAC, ALAC, WMA Lossless, and etc, the process is usually ...
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1answer
5k views

Change codec of WAV file

Is there a way to change the codec/format of WAV file? Can I use ffmpegor anything else? From RIFF (little-endian) data, WAVE audio, Microsoft PCM, 8 bit, mono 8000 Hz to RIFF (little-endian) data,...
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0answers
216 views

How to join 2 WAV files that overlap?

I have several WAV files that overlap a couple of seconds, concretely the first 6 or 7 seconds of one are the same as last of the previous. I'd like to join all of the chunks in just one file but ...
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0answers
471 views

MSIE11 Developer Tools not showing requests made by EMBED element

UPDATE: I assume the cause behind this weird behavor is that some plugins (WMP, VLC, ...) in some DOCTYPEs talk to the remote server directly, therefore browser simply can not detect their requests. I ...
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1answer
96 views

Problems when batch converting .aea files using ffmpeg

I'm running into a problem when using a bash for loop to convert all .aea files in a directory using ffmpeg (in this case, to .wav). I'm using the following: for f in *.aea; do ffmpeg -i "$f" “${f%....
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1answer
488 views

Can I Import WM Player/wav album info into iTunes on Win7 PC?

I have a hard drive that contains about 500 cds that I ripped using Windows Media Player 64 (v11? - current version) on a Win7 64 PC in wav format. I also used WMP to retrieve the album info from the ...
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2answers
9k views

is it possible to convert .nmf audio file to .wav format

Can audio files in "nmf" format be converted to "wav" format? If so, what is the appropriate tool to do so? If it cannot be converted, then what is the workaround? Some sites on the net say that ...
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0answers
257 views

How to play WAV file through Network Paging Interface [closed]

In our building we have a Viking Paging ZPI-4 Interface for our intercom. The interface receives data from our Asterisk Phone system via a Cisco SPA112 Port Adapter which has it's own IP address on ...
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2answers
400 views

In what format is Audacity processing compressed audio files?

What is Audacity doing with a compressed format when importing an mp3 or flac into it? It looks like it is extracting it When I open a wav file, it looks different - it just processes for a second ...
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2answers
3k views

ffmpeg to convert from flac to wav

I need to convert a flac file to a wav file without changing sample rate and bit depth. As far as I know changing these properties may distort the audio, so how do i specify them not to be changed? ...
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1answer
1k views

How to convert ADPCM to wav in Windows?

I have the following frame format of my ADPCM data The frame format of the ADPCM is # byte | Contents ---------------------------------------------------------- 0 | Encoder state: LSByte ...
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0answers
5k views

sox FAIL formats: can't open input file '*.wav': Invalid argument

I am trying to familiarize myself with sox to do some audio processing tasks. Ultimately, I want to take all my WAV files and extract just one channel, and save them, ideally with a modified name (e....