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26 votes
Accepted

Does the .wav file created from a .mp3 file have better quality than the .mp3 file itself?

A WAV file has the potential to hold "more" or "better" data than an mp3. WAVs employ no compression, no loss; they are as close to an exact replica as it is possible to get. An mp3 employs lossy ...
Tetsujin's user avatar
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8 votes

Does the .wav file created from a .mp3 file have better quality than the .mp3 file itself?

No. When you convert a file from .mp3 to .wav, no new information is added: there is no way to regenerate the information that was lost when you created the mp3. All the extra data in the .wav file is ...
Hobbes's user avatar
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5 votes

Does the .wav file created from a .mp3 file have better quality than the .mp3 file itself?

MP3 is the 'colloquial' name for "MPEG 1 Layer 3" audio encoding. The purpose of mp3 encoding is to reduce the overall size of an audio data stream whilst maintaining an acceptable level of listening ...
Mark's user avatar
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4 votes

Does the .wav file created from a .mp3 file have better quality than the .mp3 file itself?

In order to make sound, your computer must drive the speaker with a time-varying voltage. In order to create the time-varying voltage, the computer must send a sequence of numbers to a Digital-to-...
Solomon Slow's user avatar
2 votes

How can I learn to write audio decoding software

I recommend you to start with pulse-code modulation files (.WAV, .AIFF, etc.): https://en.wikipedia.org/wiki/Pulse-code_modulation What is stored in a typical CD-quality PCM file is nothing more than ...
Yadli's user avatar
  • 233
2 votes

Does the .wav file created from a .mp3 file have better quality than the .mp3 file itself?

You cannot get detail from nothing Even though WAV files can hold more detailed sound, that doesn't mean they always do. Converting from MP3 to WAV would be one such scenario, the converter cannot ...
520's user avatar
  • 121
1 vote

Audio equivalent to QR code

A similar idea (sometimes called “data over sound”) was the Chirp technology. A mobile app was provided which could send and receive data via audio (speaker/microphone). With a data rate significantly ...
Yushin Washio's user avatar
1 vote

Audio equivalent to QR code

Dual-tone multi-frequency signaling (DTMF) seems to be the obvious answer, because it also has two dimensions (two sets of tones). To make the tones more tolerable, you could move them to a lower ...
Marcel's user avatar
  • 121
1 vote
Accepted

Is audio better quality through a DAC meant for microphone encoing? (U-Phoria UM2)

An external ADC/DAC chain might sound better than if you did it in the PC. Is it really? Possibly, or it could be apophenia or other psychological improvement. You would need to do controlled ...
edwina oliver's user avatar
1 vote

Is it possible for Matlab to read and decode an mp3 file?

Supported codecs and containers for the audioread function of matlab can be found at: https://www.mathworks.com/help/matlab/ref/audioread.html
Mark's user avatar
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1 vote

What causes the spike in PCM signal?

These spikes are high frequency components contained in the resulting signal decode. There are two possible reasons for this. Method one uses a low pass filter which removes these components. Method ...
Mark's user avatar
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1 vote

Does the .wav file created from a .mp3 file have better quality than the .mp3 file itself?

No. This is about data resolution. Converting WAV to MP3 gets your data compressed, with loss. Converting MP3 to WAV gets your data expanded, without loss (But the loss presumably already has taken ...
Marcel's user avatar
  • 121
1 vote

Does the .wav file created from a .mp3 file have better quality than the .mp3 file itself?

Nope. Data (waveform) and Encoding (.mp3 / .wav) are things independent of each other. The same waveform encoded in both mp3 and wav, will produce a different decoded waveform when run thru the ...
Goose's user avatar
  • 111
1 vote

What is the difference between Vorbis and Opus?

The difference in quality is not huge, especially at higher bit rates. The main advantage of opus over vorbis is versatility imho. It can be used for very-low-bitrate applications, and due to encoding/...
saolof's user avatar
  • 111

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