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Select the files in the File List for conversion. Save time by converting multiple documents to audio files with Batch conversion. Once the audio file is created, right click on it in the File List and click Play Audio File. The time taken for the process to complete depends on the length of the document. You can adjust the volume with the help of the slider. When you choose the file, click Test to listen to how it sounds. Browse for the music file that you want to add. Enable the option Add background music to the output file. Choose to convert to MP3 format so that you can add background music. The file formats supported for the background music are MP3, WAV, AIFF, WMA, MPA, ASF, MPEG, MPG, and M1V.Ĭlick Speak > Convert Current File to Audio. When converting your document to MP3 format, you can combine speech with music. Listen to long articles with a soft background track. When you want to add background music to your audio file, increase the bit rate for higher quality. The higher the bit rate, the larger the files and the better the audio quality. Constant Bitrate: The number of bits processed every second is the bit rate.Values of 8 KHz and below introduce noticeable distortion. Higher values can be used if the audio is being broadcast or used for commercial reasons. Generally with Text Speaker, 16KHz will produce optimum spoken audio files. A higher frequency produces better quality, but larger audio files. Audio Frequency: This setting controls the sampling rate of your audio output.However, stereo is appropriate to be used when you set the quality as low or normal. It compresses the audio files and saves storage space. Joint Stereo can be used when you want to produce very high quality audio files. Audio Channels: Stereo and Joint Stereo are the two options available in the Audio Channels dropdown.The higher the quality, the larger the file size. The quality you choose will affect the size of your files. Audio Setting: Set the quality of your audio file from the dropdown list.Increasing the bit depth produces larger size files. When adding a background music, the higher the bit depth value, the better the sound quality. For Text Speaker, increasing this value above 8 generally does not produce a noticeably better sound quality. Bit Depth: The accuracy with which sound frequencies are recorded in the file depends on the Bit Depth value.Generally with Text Speaker the value can be set to 16KHz for optimum audio files. Channel: Stereo mode produces high quality audio and gives you the impression of natural voices.The advantage of these techniques is that they modify speech sounds to make the audio more understandable. The files produced by CCITT A-Law and µ Law are almost the same as PCM. Audio Compressor: PCM produces the highest possible audio quality files but with a large size.The audio files can be produced in WAV and MP3 formats.Ĭlick Speak > Convert Current File To Audio. This feature gives you the ability to listen to your documents wherever you are. One of the most powerful features of Text Speaker is its ability to convert your documents into audio files. Troubleshooting Speaking or Converting Documents