PRODUCTS
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GritTec's Time
stretching technology
Overview
GritTec's Time stretching technology is used for time scale modification (changing the speed or duration) of an audio signal without affecting its pitch.
Principle of functioning our algorithm is based on time-domain modification using SOLA technology, such as Waveform Synchronized Overlap-Add (WSOLA).
Applications
- With audio players for changing the duration of music or speech;
- With audio-video recorder devices or video post synchronization;
- For voice messanging services (voice mail);
- For reduce the rate of bit transmission (jitter control) in devices of IP telephony.
Features
- High sound quality;
- High robustness;
- Guarantees fixed speaker position for stereo signals;
- Time-stretch (time-scale) factor: 50%, ..., 200% (normal speed: 100%);
- Dynamic mode changing of time stretch factor;
- Input packet length: 20 ms, 30 ms or inside specific;
- Dynamic mode changing of input packet length: 20 ms, 30 ms or inside specific;
- Easy integration with target applications.
Signal requirement
- Signal format: 16-bits linear;
- 8 kHz, ..., 48 kHz sampling rate.
Availability
- PC demo for MS Windows;
- SDK with object code, ANSI C++ fixed point code is available on request;
- Portability to any DSP or ARM platforms.
Online Shopping and Free Downloads
- All products include a free evaluation period for your first installation only;
- To continue using these programs after your evaluation period has expired, you can buy a end-user license;
- Click 'Buy Now' under current product.
For more information, please contact us via Online Request Form.
If you are interested in our product, but you have not found your target platform, send us a request. We will be happy to assist you.
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