WMV to GSRT Converter

Transform WMV to GSRT without installing software

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Rapid Processing

Converting WMV to GSRT is fast — cloud servers handle the heavy lifting so you get results in moments.

Secure Processing

All uploads are handled over encrypted connections. Source files are deleted immediately, output files within 24 hours.

No Local Resources Needed

Conversion is handled by our cloud infrastructure. Your device is free while WMV transforms into GSRT.

How to convert WMV to GSRT

1

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

2

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

3

Let the file convert and you can download your gsrt 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
GSRT is a purpose-built ringtone format developed by Grandstream Networks for its line of IP phones and VoIP endpoint devices. Each file begins with a fixed-size header identifying sample rate (typically 8 kHz or 16 kHz), bit depth, and payload length, followed by PCM or mu-law encoded audio data optimized for the small speakers found in desk phones. The design prioritizes minimal decode complexity — Grandstream handsets run on embedded processors with limited memory, so the format avoids transform stages or complex bitstream parsing. Ringtones are usually provisioned through a web management interface or a centralized configuration server, letting IT administrators push branded audio to an entire fleet of phones at once. Although GSRT occupies a narrow niche within enterprise VoIP telephony, its straightforward binary layout means conversion tools can map the payload directly to WAV with minimal effort. Key advantages include rock-solid playback reliability on Grandstream hardware, negligible latency from file read to speaker output, and seamless integration with the provisioning ecosystem for company-wide ringtone deployment.
Initial release: 2002

Frequently Asked Questions

Why convert WMV to GSRT?

Choose GSRT over WMV for VoIP device ringtone creation. WMV suffers from poor Mac, Linux, and mobile device support, while GSRT works more broadly.

How do I open a GSRT file?

GSRT opens easily in Grandstream IP phones or SoX for conversion. Just double-click the file or drag it into the player of your choice.

Can I convert multiple WMV to GSRT at once?

Absolutely. Upload several WMV files and convert them all to GSRT 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 GSRT keep only the audio?

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