In Audacity with your file open, confirm the project rate is 8000 (shown in lower left corner of progress bar). Then, choose Edit | Preferences | File Formats. In the Uncompressed Export Format, choose Other Then, in Header, choose WAV (Microsoft) and in Encoding, choose U-Law. Then, choose File | Export as WAV and simply name it appropriately. button in the Recording format group and select or clear the Convert audio format to the one specified below check box: As previously noted, no conversion can increase the actual sound quality. If a player reproduces "8000 Hz 8 bit mono" sound, and you convert it to "44100 Hz 16 bit stereo", it will not sound any better than "8000 Hz 8 bit mono". I tried creating a wav file using PCM, 44.100 kHZ., 16 bit, Mono and used the same name as the csv and bmp files just had the wav file extension different and I could not get it to play on my Nuvi 260. Is there something else (i.e. proximity settings) that has to be included? Any help would be appreciated. Thanks-- Channels: 1 (mono) Audio sample rate: 8khz Audio format: CCITT u-Law. Currently, I have to edit the tracks in Audacity and export to a standard format (Wav, mp3 doesn’t matter) and then use a second program that converts from that to the required settings. I’m really hoping to do away with that and have it done direct from Audacity. Convert audio to CCITT u-Law – Jake Ludington. Leave Converting set to Wave, then click the button for Compressed. Click the compressed settings and change Format to CCITT u-Law, then pick 8,000 kHz, 8 Bit, Mono in the Attributes. Back on the main converter page, click convert and you’ll be all set. The confusion started from the thought that since the PCM is 16bit, a sample will always be 4 bytes whether it is Mono or Stereo but I was wrong! A Stereo sample will be 4 bytes when a Mono sample will be 2 bytes so it is stored as [LSB] [MSB] for a sample! Share. Improve this answer. Follow. 3 Answers. Here is how you calculate the constant bitrate (CBR) of uncompressed audio: Bits Per Second (bps) = Sample Rate (Hz) * Word Length (bits) * Channel Count. 44100 * 16 * 2 = 1411200 bps or 1411.2 kbps (kilobits per second, i.e. bps / 1000) To express that in bytes, kilobytes or megabytes use the following conversions: Bits to bytes An example of a 1-stage stream format conversion is the conversion of a PCM format to another PCM format (e.g., 8kHz 16-bit Stereo PCM [SPSF_8kHz16BitStereo] -> 44kHz 8-bit Mono [SPSF_44kHz8BitMono]). This requires only one codec (e.g., "Microsoft PCM Converter"). To get 5200 to 5400 bytes per second, you have to work backwards. Select 8-bit (1-byte) per sample. So you only have 5200 to 5400 sampleRate to work with. PCM data is raw audio samples. The only way to get higher quality audio into less bytes is by audio compression, into mp3 or aac or some other audio compression codec. Using the file selector above, select a WAV file from your computer or phone. After seeing the selected file appear in the file selector, you can customize your output conversion settings including bitrate, sample rate and channels. Click the "Convert" button to convert your file to WAV format. The WAV file should automatically save to your device. 6C1icgg.