1. Do this in two steps. First generate the RAW file (in audacity, there is an option to export to headerless RAW audio file under Export -> Export Audio). Make sure you export to 8-bit signed or unsigned values. Then, using a linux tool called xxd, you convert the binary file into a c header file (I suppose you could do this with any hex

You need to get your file converted to a more standard format before converting it to MP3. Use WaveFormatConversionStream.CreatePcmStream to go from mu law to linear PCM 16 bit. Then the next challenge will be that LAME probably won't like 8kHz audio, so upsample to at least 16kHz, possibly higher with either another WaveFormatConversionStream

L1 = ( Lbig1 File -> Import -> Raw Data -> choose
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If you use MP3 file in the IVR,and meet the problem on voice quality or voice volume,you can transfer to wav with wavepad.exe tools. you can download wavepad from google. Audio file is normally used in IVR, and music on hold/transfer. ZYCOO CooVox IP
6. I have G729 encoded audio files. I need to programmatically convert them to WAV PCM (16bit 8kHz mono) in the flow of a tool that is doing other thing too. I have an executable that will do that for me. But spawning that external process every time I convert is too heavy on resources. Especially if I need many of them being done in parallel.

So let us stay with uncompressed "wave" format. There are two choices you need to make here: sample rate. bit depth. In video we use 48kHz as sample rate, on CD-s it is 44.1 kHz. Both work equally well as far as normal sound goes. Rarely anything different, and then the receiver of the files probably will tell you.

Make sure you enter the following codec for conversion. Step 1: Open the Terminal on your Mac, go to the directory that contains files that you like to convert PCM to WAV.If you are using Windows, you can enter the command line for the codec. Step 2: After that you can enter the following codec to turn PCM to WAV.
P.s don't forget it's PCM, 8kHz 16-bit, mono, maximum length 90 seconds . ACSS (SME) APSS (SME) www.ipoffice.tel We are using MP3's at 24 bit 44.1KHz. We have Instead of using the "$()" syntax, just use "*.mp3" in the for line, and make sure to quote the file names in the sox command. In addition, the basename command doesn't remove the file extension, just any folder names.

Re: Use goldwave for changing wav to pcm 16bit using command. If you can open the files in GoldWave, then you can set up a Batch Processing preset to convert the file to Wave with "PCM 16 bit, mono" attributes. You can then use that preset on the command line. See the Command Line section in the help/manual for details ('-process").

Carregue o áudio que você deseja transformar em WAV. Altere a resolução de bits, taxa de amostragem, formato PCM e mais nas configurações opcionais (opcional). Clicando no botão respectivo, a conversão começa. Converta seu áudio para o formato WAV com este conversor de WAV online gratuito. Você também pode extrair faixas de áudio
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    • convert mp3 to pcm 8khz 16 bit mono