QCP to AWB
Convert QCP to AWB, QCP to AWB Converter
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AMR MP3 Converter converts QCP files to AWB format. The software is an all in one audio converter that supports more than 90 audio and video files as input, and converts to popular formats such as MP3, WAV, AAC, M4A, OGG, WMA, and AWB.
AMR MP3 Converter also supports batch conversion, and is full compatible with Vista and Windows 7.
What is QCP?
PureVoice Voice Recording technology provides landline-quality voice transmission that operates at variable encoding rates in order to take advantage of natural pauses in human speech. The high-quality, high-compression solution is useful for store-and-forward as well as streaming applications, and the technology accommodates erasures (dropped data), resulting in better performance on real-time applications.
PureVoice Audio Automatic Gain Control (AGC) provides the highest quality stereo enhancement software available for Qualcomm's MSM platforms, enabling CDMA handset manufacturers a simple "drop-in" solution for enhancing the sound quality and usability of their phones. PureVoice AGC is most effective in adverse noise conditions where background noise would otherwise prevent intelligible phone conversations.
What is AWB?
AMR-WB is codified as G.722.2, an ITU-T standard speech codec, formally known as Wideband coding of speech at around 16 kbit/s using Adaptive Multi-Rate Wideband (AMR-WB). G.722.2 AMR-WB is the same codec as the 3GPP AMR-WB. The corresponding 3GPP specifications are TS 26.190 for the speech codec and TS 26.194 for the Voice Activity Detector.
A common file extension for AMR-WB file format is .awb. There also exists another storage format for AMR-WB that is suitable for applications with more advanced demands on the storage format, like random access or synchronization with video. This format is the 3GPP-specified 3GP container format based on ISO base media file format. 3GP also allows use of AMR-WB bit streams for stereo sound.
The AMR-WB bitrates are 6.60, 8.85, 12.65, 14.25, 15.85, 18.25, 19.85, 23.05 and 23.85 kbps. Compared to narrowband speech codecs (like AMR) optimized for traditional telephone voice quality of 300-3400 Hz, the AMR-WB codec's wider bandwidth of 50-7000 Hz provides excellent speech quality.
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