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Questions tagged [mp3]

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4
votes
2answers
7k views

Why do mp3 have sample rate?

So my understanding of mp3 or any lossy file format is that a lossless audio such as wav will be sampled at some rate i.e. 44.1kHz and the mp3 will compress each second of that to a constant rate of ...
2
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1answer
978 views

LAME bitrate and lowpass filters

Is there a formula or chart that specifies what lowpass filter LAME will automatically invoke for certain bitrates? I've looked around the net and can't find anything on this. And is there a specific ...
1
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1answer
162 views

How to handle conversion of 32728 Hz for playback on common software/devices? [closed]

I've been working on converting the soundtrack from a video game from its original format to something that you can easily play back on regular consumer devices. The system is Nintendo 3DS, utilizing ...
1
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6answers
3k views

Does converting an mp3 format audio file to m4a format makes audio quality better?

Does converting an mp3 format audio file to m4a format makes audio quality better ? I was just wondering if mp3 is lossy. How it can generate lossless m4a file after conversion. I know mp3 can be ...
2
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2answers
716 views

Generate sound file from Db or SPL graph

I have a chart that shows values of the sound amplitude (in Db and SPL) measured in one point of the space as a function of the time. Could be possible to generate an audio file using these values? If ...
0
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1answer
151 views

How to know best fit output quality for transcoding?

From time to time I have some files which I need to transcode for my personal mp3 player to play it. They may be recordings in other formats or even videos. I like to use VBR, as it gets the best ...
0
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2answers
85 views

Exporting from ogg to mp3 has poor quality

I have several sound effects in ogg format. I have to export them in mp3. I oppened each of them in Audacity and used export functionality to achieve my goal. But when I played the sounds in mp3 ...
-3
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1answer
176 views

Interpreting sampling rate of mp3 files

I thought mp3 encoding doesn't have a uniform sampling rate, how then sox --i shows sampling rate field for mp3s? I see 44100 sampling rate for an mp3 file.
0
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1answer
55 views

How can configure Rekorbox so that it records the computed BPM in the MP3 ID3's BPM field?

Rekorbox computes the BPM of an MP3 while analyzing it. How can I configure Rekorbox so that it records the computed BPM in the MP3 ID3's BPM field?
7
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3answers
14k views

How to convert a stereo MP3 to mono MP3

We had an MP3 created for a message greeting on our phone system. It is stereo MP3, not sure what the bit rate is, but is sampled at 44.1k. Our sound system requires it to be in this format: 16 bit ...
1
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3answers
730 views

Looping mp3 in Flash / Actionscript

It's a known problem to loop mp3's because of the gap they have in the beginning. But since Flash has programatic control, I tried to use the offset to play it. Still, so far, I couldn't get it to ...
5
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1answer
8k views

How can I detect corrupt/incomplete MP3 files?

I have 1,000 MP3. Some of them went through e-mail, FTP, USB key, etc., which means they might be corrupt or incomplete. How can I check them (without having to test them one by one manually)?
0
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2answers
289 views

What are the distorted sounds in 2 - 5 kHz range?

I have an mp3 128 Kbps music file with particular parts where a series of single note only on a cello is played initiated with a bell click. Less than a second after a bell click and cello note ...
1
vote
1answer
86 views

Record cassettes using computer

I know there are a lot of devices that take cassettes and digitize them into MP3s, but I'm looking to do the opposite. I'm looking for a device that I can plug my computer's (or phone or whatever) ...
0
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2answers
169 views

convert to mp3 or lower the samplingrate

I have a question regarding sound quality - its a question about whether I should choose betwteen two strategies where the purpose is to preserver good sound quality at the one hand - and to reduce ...
0
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1answer
442 views

best sound-quality - MP3 or WMA

Is there any difference in sound-quality between the following formats: MP3 WMA
1
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2answers
1k views

MP3-format - how the quality is affected

I am developing an app based on soundphrases for android. I record a voice with my samsung galaxy SIII and then use audacity for making the quality better. Then this soundfile is exported as an ...
0
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1answer
423 views

Relative compare between AAC and MP3 - Optimal convertion

I want to convert a big number of AAC music files to mp3. The bitrates I will meet in AAC are in the range of 96,128,152,192 kbps. The available bitrates to mp3 from my converter are 96,128,152,192,...
0
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2answers
2k views

How to add meta info to mp3/wav file MAC OSX?

How to add meta info to mp3/wav file MAC OSX ? Is there any application?
2
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3answers
286 views

Multicore Mp3 encoder for OSX, is it available? Why not?

Hi Everyone, Not necessarilly a sound design question.. Everyone probably runs a multicore computer and since we are in the business of sound, we need to create a lot of mp3 files. Now this is ...
11
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4answers
2k views

Is there a losslessly compressed audio file?

Anyone who works with audio either as a hobby or as a professional knows about MP3 and WAV, and the advantages and disadvantages of each. Namely: MP3 (most commonly MPEG III) disadvantage: lossy ...
2
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2answers
2k views

mp3 encoding and settings

For encoding mp3s I use the Fraunhofer codec that I think sounds the best. I found it in Nero program and I can record my cubase arrangements in audacity and save it as a wav file in audacity and ...
2
votes
3answers
584 views

Join audio files into one mp3?

I have a bunch of mp3 files I would like to consolidate into a single mp3. What software is able to do this quick and effectively? I have tried online conversion tools and they don't work so well. I ...
4
votes
1answer
305 views

What is this static in front of the audio in MP3?

I understand that MP3 is not recommended for production as it is lossy, but that is irrelevant here. I understand that the MP3 encoding algorithm inserts silence in the first second to pad out the ...
4
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2answers
63 views

Is there a utility software to set a default sound output level for a number of MP3 tracks?

Some of the tracks in my MP3 collection have low output sound and this requires that I adjust volume level back and forth every time such a track plays and completes. Is there an application that I ...
1
vote
1answer
379 views

Will ripping my old 90's and 2000's CDs yield as good a quality as buying the MP3s today?

I have a bunch of old CDs from 1990 and 2000 that I want to rip as MP3s to my computer. I am not an audio buff, so perhaps this question is a bit irrelevant to my personal quality preferences, but ...
3
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2answers
3k views

Audacity: Increase audio volume in audacity software

How can I increase audio volume of a mp3 file in audacity? I need to cut a part of mp3 song to make a ringtone. But as I save it in by mobile, the volume is too low for this particular file. Is there ...
5
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6answers
53k views

Is it possible to separate voices from one mp3 file?

I want to separate 2 or more voices from one audio file, is there any software to this ? I have done some googling and seen that the answer is NO in most cases. But I think at least there should be ...
2
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2answers
20 views

Program to generate midi sounds and sequences

I have a few songs I have written for a band using TuxGuitar, with the classic set of instruments: 2 guitars, 1 bass and drums. I can export this songs to MIDI, but since a while I've been searching ...
0
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5answers
131 views

PC laptop mp3 playback

I am working on a theater sound design which will require frequent repetitions of a few sound files. I have a PC laptop that I can use for playback. I have seen software that allows the assignment of ...
1
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1answer
5k views

Opus vs MP3 (Size & Quality Comparison)

How does Opus differ from MP3 when comparing both in relation to the file size and quality. For example if I were to convert a 320kbps or 128kbps file that is 10MB or 4MB in mp3 format to opus, what ...
4
votes
2answers
528 views

FLAC vs MP3 (Lossless vs Lossy)

I tried to compare one file which was flac with mp3 file that was converted from FLAC. I kept comparing these two files and I really had hard time differencing between these two codecs. It was ...
2
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1answer
28 views

MP3 Podcast Problems… mp3 file format?

I'm having trouble with an audio file. If you look over at this Ask Different question I submitted, you'll see I was having issues with getting a podcast to work in iTunes. I finally narrowed it ...
3
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3answers
39 views

Easiest way to convert audio tape to mp3?

I have a few hundred of audiotapes; I am looking for an easiest way to convert them to mp3; I would like to find a software which would 1) adjust recording level automatically (and do it gradually - ...
0
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3answers
1k views

Re-encoding MP3 reduces quality

If we have an MP3 file and we decode it to an uncompressed WAV file and then later encode it to MP3 again at the same sample rate - why is it that the quality gets degraded? This is a past exam ...
1
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2answers
1k views

MP3 date tag format

I want to tag a whole lot of mp3s (in MediaMonkey) and I was wondering what format I should use for the "date" tag. Ideas: DD.MM.YYYY MM/DD/YYYY MM.DD.YYYY YYYY-MM-DD Is there any standard for this?...
3
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1answer
9 views

Mp3 codec reencoding effects

Does encoding a low bit rate (say 128 kbps) Mp3 from a 320 kbps Mp3 produce the same thing as encoding it from the original lossless? Or does the way Mp3 work mean that the losses compound on each ...
0
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1answer
834 views

Software to combine a MP3 and a CD+G file

I am looking for software to turn MP3 and CD+G into an MP4, MOV, AVI, or any other common video format. Any suggestions?
0
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1answer
157 views

How to recognize deep from loud sounds?

I found a player at newgrounds.com time ago (cannot find it now, forgot the url, will comment if i find it) that has two pairs of speakers. The upper pair plays loud sounds or screamy sounds but the ...
1
vote
1answer
616 views

How do I mass convert mp3 to an open format without losing quality?

I have some mp3 files - stems from a track ready for remix. The originals in a non-lossy format are not available. I would like to open them in Ardour, on linux, but Ardour doesn't open mp3s, because ...
6
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5answers
9k views

Is it possible to loop MP3 without gaps? [duplicate]

Any sound editor adds little gap on the beginning and on the end of sound loop when I convert it to mp3. Deleting gap is useless, after reload it’s still there… Is there any way to solve this?
2
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3answers
407 views

portable player to replace minidisc

I've been using minidisc players for the last decade. Since that technology is as good as dead, and so will by my last player soon, I'm in the market for the latest and greatest portable music player ...
2
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2answers
2k views

What could be causing distortion on my MP3 when imported into Audacity?

I appreciate that this is an open ended question; I'm really looking for some pointers on what to look at next. I recorded 48 minute conversation into an MP3 at 128kbps. It's a stereo recording with ...
0
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3answers
2k views

MP3 cd in car stereo

I'm not sure if this is the right place for this question, so if it isn't feel free to move or delete it. I just burned an MP3 cd (let's call it CD 1) with about 80 songs on it, and it plays fine on ...
2
votes
1answer
828 views

Enhance badly converted 128kbps mp3 samples

i have very old recordings of songs (from my own bands) for which i don't have the source anymore and which have been badly converted to a bad quality mp3 (128kbps) I know that's all wrong but i was ...
1
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2answers
27 views

How to use ZOOM H4N to vary speed of nearly “any” MP3 clip?

Zoom's H4N can vary speed of audio that it records, but often has trouble doing that to podcasts (from CBC, etc.). Is there a way to persuade it to work with nearly "any" MP3? If not, what FOSS ...
1
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2answers
35 views

File renaming of MP3

I have a huge music collection and a good majority of it is Billboards Top 100. The Tags on the files are incorrect and the file names are similar. 15-Kay_Kyser-Woody_Woodpecker.mp3 T#-Artist_Name-...
5
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8answers
4k views

MP3 gapless looping help?

Hi guys, quick query here, Need to make some sounds for a client loop seamlessly in his game. Edited them fine as wav files in Pro Tools so they loop ok, but when saved as mp3 at clients request a ...
3
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4answers
3k views

Best lossy format for music?

Which one of the lossy file formats like Ogg, AAC, Mp3, Wma has the best quality/size ratio? I've seen that AACs are smaller than MP3 at the same bitrates. Do they sound worse than MP3?
40
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13answers
41k views

Are there any audible differences between 192 and 320 kbit/s .mp3 files?

I have friends that are very picky when it comes to mp3 bit-rate, and will always look for the 320 kbit/s version of a file. However, I have never noticed any differences, they sound the same to me. I ...