Transcription Services from Multiple File Formats
An audio file format can be defined as a container format that is used to store audio data on a system. There are different types of audio formats, such as uncompressed audio formats, lossless audio formats, free and open file formats, open file formats and proprietary file formats. At Outsource2india, we can transcribe files that have formats, such as, DSS, MP3, WAV, MOV, MP4, AIFF, MPEG4, WMA and RA.
The following is a list of file formats for which we can provide transcription services -
1. Digital Speech Standard (DSS)
Digital Speech Standard files or DSS file formats are proprietary compressed digital audio formats. DSS was developed by the international voice association, headed by Grundig, Philips and Olympus. By using the DSS format, you can perform functions, like recording, rewinding and playing. It has the ability to record in overwrite or insert mode. The DSS file format can meet your requirements for quality speech solutions and is one of the most preferred formats. It has a high compression rate and is perfect for complicated workflows.
The DSS file format uses less disk space for storing, many dictations on one devise and high speed transmission on the internet. When you use this file format you can save information such as, date, time and dictation length. The DSS format reduces the time taken to transfer and also reduces the memory requirement. There is minimal quality loss and lesser energy consumption. Other advantages of the DSS file format are its high compression rate and audio quality. However, the file format is old and has poor codec capabilities.
2. MPEG-1 Audio Layer 3 (MP3)
The MPEG Layer-3 format or the MP3 format is one of the most popular formats used for downloading and storing music. The MP3 file format is the most popular digital audio format. It falls under the category of lossy compression and is a proprietary format. It has the capability to reduce the amount of data required to represent the audio. The MP3 file format is also preferred above other file formats because of its superior quality.
The MP3 file format offers many advantages such as easy storage, reduced cost of production. It is also small in size and is perfectly suited for uploading audio on the internet. It also takes lesser transmission time over the internet. When compared to WAV files, MP3 files take less space and can be easily stored in an electronic format. Since MP3 files are highly compressed in size, more data can be stored in a single CD.
In the MP3 file format, inaudible portions of the audio file are eliminated and the MP3 file is compressed to one-tenth of the size of a PCM file, while maintaining a superior audio quality.
3. Waveform Audio (WAV)
The waveform audio file format, wave file format or WAV file format falls under the category of free and open file formats. WAV has been developed by Microsoft and IBM for storing audio on computers. It is one of the main formats used on windows systems for raw audio. WAV can be played on all windows applications and is also compatible with Macintosh and Windows operating systems. In a wave file, unprocessed data is stored in a raw form. This feature ensures high audio quality.
The wave file format is not suitable for transmission over the internet and is not advisable if you want to store many audio files in a small disk space. The other disadvantage is that WAV files are uncompressed and large in size. In a wave file the audio data is encoded using PCM.
WAV is a standard audio file container used in computers having Windows. WAV file formats can contain data encoded with different varieties of codec. This feature enables the file size to be reduced. The WAV file format uses a riff structure. The WAV file format is popular for its CD like quality sound files. WAV files also have the capability to include large files of 10 MB per minute.
4. Quick Time Movie Format (MOV)
The quick time movie file format or MOV file format is an openly-documented media container. The MOV file format was developed by apple. It falls within the category of proprietary compression. This format is ideal for streaming audio and video. MOV files are compatible with both windows and Macintosh platforms. The MOV files format can enable you to create, edit, view and publish multimedia files.
The MP4 file format is a proprietary file format. The MP4 file format is developed by Apple. It is mostly used for downloading music from the iTunes music store. The MP3 file format is a proprietary format of AAC with digital rights management. The MP4 file format is very similar to the MP3 file format as the MP4 file format can also compress the audio files without any reduction in the audio's quality. It also has the capability to compress video files.
6. Audio Interchange File Format (AIFF)
Audio interchange file format or the AIFF file format is a standard file format developed by Apple. AIFF is an audio file format standard that is mainly used for storing sound data on computers and other electronic audio devises. In the standard AIFF file format, the data is uncompressed. It is one of the most commonly used file formats for video and audio applications.
When compared to the MP3 format it uses larger disk space. It is similar to the WAV format used for Mac. The AIFF format has been designed to enable the exchange of sampled audio data between two applications. You can store high-quality sampled audio and musical instrument information in the AIFF file format.
The MPEG4 file format is an international standards organization specification. MPEG4 includes many of the features of MPEG1 and MPEG2. It has new features such as, improved support for 3D rendering, audio objects, VRML objects and video objects. The MPEG4 file format has varied functionalities such as improved coding efficiency, error resilience, capability to interact with audio visual scenes generated at the receiver and capability to encode different media data.
By using the MPEG4 file format, you can protect your content better. Apart from supporting audio and video, MPEG4 can also support text, 3D objects and other media types. The MPEG4 file format can deliver high-quality video at a smaller size with a lower data rate.
8. Windows Media Audio (WMA)
The windows media audio format of the WAV file format is one of the most popular audio formats. The WMA format is owned by Microsoft. It has been designed with digital rights management abilities to ensure copy protection. The sound quality of the windows media audio format matches the sound quality of the MP3 file format. WMA files have a downloadable format and can be easily streamed to listeners. When you use a WMA file, you can restrict the use of the file, as the WMA code includes optional copyright protection. The WMA file format is a compressed audio file format and has the same advantages of the MP3 file format.
9. Real Audio (RA)
The real audio format or the RA file format is a proprietary format which has been specifically designed for streaming audio over the internet. It has been developed by RealNetworks. It uses a variety of audio codecs to compress files. RA files also have the ability to conform to low bandwidths. The RA file format has features to enable the storage of files in a self-contained manner on the computer, while the audio data is maintained within the file. The RA file format can be used as a streaming audio format as it can be played and downloaded at the same time.
Outsource MP3 transcription, RA transcription, AIFF transcription, DSS transcription, MP4 transcription, MPEG4 transcription, WAV transcription and WMA transcription to O2I and get access to accurate services within a fast turnaround time.
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