WMV to GSM Converter

Quick WMV to GSM audio transformation online

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WMV to GSM Made Easy

Switching from WMV to GSM takes seconds. Upload, convert, and enjoy broader audio compatibility instantly.

Privacy Protected

Your uploaded files are erased right after conversion. Converted results are automatically deleted within 24 hours.

Server-Side Processing

All audio encoding happens in the cloud. No CPU strain on your computer, no software downloads needed.

How to convert WMV to GSM

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose gsm or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your gsm file right afterwards

About formats

WMV (Windows Media Video) is a family of video codecs and associated file format developed by Microsoft, first introduced in 1999 as part of the Windows Media framework. The format encompasses several codec generations, from the original WMV 7 through WMV 9 (also standardized as VC-1 by SMPTE under the 421M specification). WMV files are typically contained within the ASF (Advanced Systems Format) wrapper and use the .wmv extension to indicate video content. WMV 9/VC-1 achieved compression efficiency comparable to early H.264 implementations, delivering good visual quality at moderate bit rates and earning adoption for HD DVD and Blu-ray disc content as an approved codec. The format was deeply integrated into the Windows operating system, Windows Media Player, and server-side streaming infrastructure, making it a natural choice for enterprise media delivery, corporate training videos, and Windows-centric web content throughout the 2000s. WMV supports features including interlaced video, multiple bit rate encoding for adaptive streaming, and digital rights management through Windows Media DRM. The Silverlight platform also used WMV as its primary video format for rich internet applications and streaming services. While the industry has largely moved to H.264 and HEVC for most applications, WMV remains present in legacy enterprise content management systems, archived media libraries, and workflows tied to the Windows Media ecosystem.
Developer: Microsoft
Initial release: 1999
GSM 06.10 (Full Rate) is the foundational speech codec of the Global System for Mobile Communications standard, ratified by ETSI in 1991 and deployed across hundreds of cellular networks worldwide. Operating at a fixed 13 kbit/s, the algorithm applies Regular Pulse Excitation with Long-Term Prediction (RPE-LTP) to compress 20 ms frames of 8 kHz mono speech into just 33 bytes each. This approach models the vocal tract as a linear predictive filter, encodes the excitation signal, and leverages pitch periodicity for further reduction — tuned to deliver intelligible voice under the bandwidth constraints of early digital mobile channels. The codec powers not only GSM telephony but also many VoIP applications, voicemail systems, and IVR platforms that benefit from its low bitrate. Three concrete advantages stand out. First, extraordinary compression: one minute of speech fits in roughly 100 KB, enabling efficient storage and transmission. Second, universal tooling — libraries such as libgsm and SoX handle encoding and decoding on every major platform. Third, a royalty-free patent landscape that has encouraged adoption across open-source telephony projects like Asterisk and FreeSWITCH.
Initial release: 1991

Frequently Asked Questions

Why convert WMV to GSM?

WMV has poor Mac, Linux, and mobile device support. Converting to GSM gives you the telephony speech codec standard and makes your content more accessible.

How do I open a GSM file?

You can play GSM using VLC, Audacity, or telephony software supporting GSM 06.10. No special configuration is usually required.

Can I convert multiple WMV to GSM at once?

Absolutely. Upload several WMV files and convert them all to GSM in one batch — each processes independently.

Will the audio quality be preserved?

Audio quality depends on the bitrate you choose. Higher bitrates retain more detail from the original WMV soundtrack.

Does converting WMV to GSM keep only the audio?

Yes — when you convert a video format to GSM, the converter extracts the audio track and discards the video stream entirely.

WMV to GSM Quality Rating

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