MP3 is a patented digital audio encoding format using a form of lossy data compression.

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MP3 encoding Algorithm ref

Does any body have a reference describing MP3 algorithm in a step by step manner and clear to understand? This refs were a little bit confusing: audio compression using modified discrete cosine ...
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MP3 equalization

I made an equalizer using eq10q filters. Now I want to use my equalizer for music equalization and make my own music player. So I have some doubts: If I want to equalize MP3 files, do I have to ...
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Why is an audio compressed in FLAC(Free Lossless Audio Codec) changing its bit rate?

I just recognized that the bit rate of an audio file compressed in FLAC is changing during play. On the other hand, MP3 file has a fixed bit rate such as 128, 192, 320kbsp etc. But why FLAC is not? ...
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Formatting issue WAV - MP3?

I have two "sources" of audio: record WAV audio files (44.1kHz, 16bit, stereo) with Linux arecord and convert them with LameMP3Encoder to MP3 files (44.1kHz, 320kbps, 32bit**, CBR)*** record MP3 ...
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Will lossy compression prevent me from performing audio analysis?

I'm starting a project where we will have to analyze bird recordings. We will try to measure the birds activity using the audio. The recordings are really long (around 24 hours each) and recorded in ...
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Downsampling MP3 for FM broadcast

I have some MP3s that are encoded at 44.1kHz with a bitrate of 160kbps. I hook these up to my car using an FM transmitter and the sound quality isn't particularly great. Low and high notes sound ...
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365 views

Difference between jpg compression and mp3 compression

My understanding of jpg compression is that, if done repeatedly, any image will eventually be reduced to a single flat color, due to the way it deals with neighboring pixels. However, years ago I was ...
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347 views

how to extract telephone audio only from an mp3

I have mp3s of radio talk shows in which the host interviews people on the phone. The host uses a microphone, and the interviewee uses either a landline phone or a cell phone. I want to save just the ...
2
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490 views

Audible mp3 artifacts?

What kind of compression artifacts would typically be most noticeable to a non-audiophile listener in a low-bit rate mp3 (MPEG-2 Layer III) compressed audio file? What kind of audio signal might one ...
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How to extract vocal part from stereo audio signal?

I'm now processing MP3 file and encounter this problem. My MP3 is stereo encoded. What I want to do is extract vocal part for further processing(whatever mode of output signals, mono or stereo are ...
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324 views

MP3 Decoding Discrepancy

Is it possible for two different decoders to output two different sample results for the same MP3? I'm decoding an mp3 on Matlab and it produces two columns (presumably one for each channel). When I ...