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Concatenating multiple wav files - defects on borders

£20-250 GBP

Cerrado
Publicado hace más de 8 años

£20-250 GBP

Pagado a la entrega
I have a sequence of chunks of a live mp3 audio stream like so: [login to view URL] [login to view URL] … [login to view URL] If I use Ffmpeg to concatenate these in a single mp3 file the audio is ok. The output of: Ffmpeg –f concat –i [login to view URL] –c copy [login to view URL] [login to view URL] But if I convert each chunk of mp3 to wav and then concatenate wavs there are audible defects on the chunk borders: Ffmpeg –i [login to view URL] [login to view URL] [login to view URL] [login to view URL] … [login to view URL] etc and then: Ffmpeg –f concat –i [login to view URL] –c copy [login to view URL] [login to view URL] For both mp3 to wav and mp3 chunks to single mp3 Ffmpeg shows warning: Skipping 0 bytes of junk at 0. Estimating duration from bitrate, this may be inaccurate What is the problem and is it possible to do it right?
ID del proyecto: 8689964

Información sobre el proyecto

10 propuestas
Proyecto remoto
Activo hace 8 años

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10 freelancers están ofertando un promedio de £134 GBP por este trabajo
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Hello, I have worked with audio for over 20 years now I have my studio and I can help you. Can I deliver the file ready only me of the specifications. After we solved the problem tell you how to solve the problem for other occasions.
£100 GBP en 2 días
5,0 (39 comentarios)
5,5
5,5
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A proposal has not yet been provided
£150 GBP en 3 días
5,0 (1 comentario)
4,2
4,2
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Hello I'm interesting your project very well I'm a Good C++, PHP, FFMpeg, Math, Algorithm expert. I understand your req exactly. I m quite well experienced in these jobs. Let's go ahead with me I want to service for you continously. Thanks
£250 GBP en 2 días
5,0 (2 comentarios)
3,9
3,9
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Hello, my name is Leopoldo and I’m a musician and electronic engineer from Argentina specialized in audio and acoustics. In 2004 I started working with music in personal projects, and during my career I focused my studies in acoustics and digital signal processing. Since 2006 I have been working in music writing, recording, editing and mixing for small bands and singers, taking advantage of the expertise gained in my career. I acquired advanced technical knowledge through my diploma in Acoustics and Electroacoustics, and I expanded my experience during my research at the CINTRA Acoustics Research Center. I have worked with audio signals processing for more than 3 years developing active noise control systems for car interiors, taking care of both the acoustic aspects of the problem and microcontroller programming. I have developed acoustic systems simulations in Matlab, acoustic parameters measurements with Dirac and SiaSmaart Live, and audio signal processing with Nuendo and Cubase. I have also designed and built vacuum tube based analog signal processors for electric guitar. I have a home studio fitted with professional equipment (Presonus soundcard, Mackie and Behringer studio monitors, Studio Project and Shure microphones, etc). I am very passionate about my work, and I believe good communication and compromise to goals are the key to ensure my clients satisfaction. I look forward to hearing back from you and hope we can work together. Kind regards, Leopoldo Budde
£150 GBP en 3 días
5,0 (4 comentarios)
3,5
3,5
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Sure I will check for it.. and solve the issue. Thank you for your time and consideration. Regards, Ram Srinivasan
£200 GBP en 5 días
0,0 (0 comentarios)
0,0
0,0
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Concatenating audio files use to finish in glitches at the borders, I think the best solution is downloading single files and join them in a Digital Audio Workstation with a little crossfade between them.
£111 GBP en 3 días
0,0 (0 comentarios)
0,0
0,0
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Hello! I see your project ends in about 1 hour. Could you hold it a little bit so that I can do some testing with the samples provided? I have a good ffmpeg background, so I'll probably be able to help you. If in doubt, please check my previous employer's feedback. Hope to hear from you. Best wishes! Alex. EDIT: I downloaded the samples and did the testing. Here, both files (mp3 and wav) produced the same result, in terms of audio. Maybe you're using an old version of ffmpeg? The versions I tested were these: - ffmpeg svn-compiled version ffmpeg version N-75077-g309fb6b Copyright (c) 2000-2015 the FFmpeg developers - ffmpeg version from Ubuntu ffmpeg version 2.8 Copyright (c) 2000-2015 the FFmpeg developers I can send you the output samples (mp3 and wav) if you want to check them. Just let me know.
£50 GBP en 1 día
0,0 (0 comentarios)
0,0
0,0

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Bandera de RUSSIAN FEDERATION
Russian Federation
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Miembro desde oct 15, 2015

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