base_K3bSoxEncoderConfigWidget Sebastian Trueg Form1 0 0 419 201 unnamed 0 m_checkManual Manual settings (used for all file types) tqlayout2 unnamed spacer2 Horizontal Fixed 20 10 tqlayout1 unnamed textLabel2 Sample rate: Signed Linear Unsigned Linear u-law (logarithmic) A-law (logarithmic) ADPCM IMA_ADPCM GSM Floating-Point m_comboEncoding false <p>The sample data encoding is signed linear (2's complement), unsigned linear, u-law (logarithmic), A-law (logarithmic), ADPCM, IMA_ADPCM, GSM, or Floating-point.</p> <p><b>U-law</b> (actually shorthand for mu-law) and <b>A-law</b> are the U.S. and international standards for logarithmic telephone sound compression. When uncompressed u-law has roughly the precision of 14-bit PCM audio and A-law has roughly the precision of 13-bit PCM audio. A-law and u-law data is sometimes encoded using a reversed bit-ordering (i.e. MSB becomes LSB).<br> <b>ADPCM </b> is a form of sound compression that has a good compromise between good sound quality and fast encoding/decoding time. It is used for telephone sound compression and places where full fidelity is not as important. When uncompressed it has roughly the precision of 16-bit PCM audio. Popular versions of ADPCM include G.726, MS ADPCM, and IMA ADPCM. It has different meanings in different file handlers. In .wav files it represents MS ADPCM files, in all others it means G.726 ADPCM. <br> <b>IMA ADPCM</b> is a specific form of ADPCM compression, slightly simpler and slightly lower fidelity than Microsoft's flavor of ADPCM. IMA ADPCM is also called DVI ADPCM.<br> <b>GSM</b> is a standard used for telephone sound compression in European countries and is gaining popularity because of its good quality. It is usually CPU intensive to work with GSM audio data.</p> <p><em>Description based on the SoX manpage</em></p> m_editSamplerate false 14400 textLabel4 Data size: textLabel3 Data encoding: textLabel1 Channels: 1 (mono) 2 (stereo) 4 (quad sound) m_comboChannels false Bytes 16-bit Words 32-bit Words m_comboSize false spacer1 Vertical Expanding 250 16 m_checkManual toggled(bool) m_comboChannels setEnabled(bool) m_checkManual toggled(bool) m_editSamplerate setEnabled(bool) m_checkManual toggled(bool) m_comboEncoding setEnabled(bool) m_checkManual toggled(bool) m_comboSize setEnabled(bool)