Original recording (PCM encoded 16 bits per sample, sampling rate 44100 Hertz, stereo). PCM encoded sound files with 16 kHz and 8 kHz sampling rate, respectively: 2. A-e02-16kHz.wav 3. U-LAW encoded (8 bits per sample) sound file with 44.1. Mar 7, 2015 - WAV is the container format for the PCM codec so if you MUST have PCM then get into a binary file editor (wxHexEditor is a nice one) and delete the first 44 bytes (its header) of that WAV file. So above gives you 8000 samples per second and a bit depth of 8 bits, and mono. Verify this using avprobe.

Working With Wave Files Native Formats As with any telephony device it is important to play and record audio files (wave files) utilizing formats that are native to the device. For example the Dialogic Proline/2V and D/4PCI supports the following formats natively: • PCM 11,025 Hz, 8-bit, Mono • ADPCM 6,000 Hz, 4-bit, Mono • ADPCM 8,000 Hz, 4-bit, Mono • uLaw 6,000 Hz, 8-bit, Mono • uLaw 8,000 Hz, 8-bit, Mono The wave files provided with ExceleTel TeleTools are in the format “PCM 8,000 Hz, 16-bit, Mono”. If you find that they work with your Dialogic card it is because there is a CODEC (Audio COmpressor DECompressor) installed on your system that converts the file in real-time. You can see what CODECS are installed on your system by clicking on “Multimedia” in the Windows 98 Control Panel, selecting the “Devices” tab and expanding the “Audio Compression Codecs” item. You can also find other WAV file formats by checking our WEB page.

Alternative software development tools for Intel / Dialogic hardware Less costly Royalty Free Hardware Independent Would you like to find an alternative to the expensive, royalty based, hardware specific, and/or discontinued computer telephony software development tools from Intel / Dialogic, Pronexus, Parity, Envox or others? For more information about ExceleTel TeleTools.

Artisosft VisualVoice Parity CallSuite Parity VOS Pronexus VBVoice CT ADE (Dialogic, Intel, Envox) Do you need a replacement for one of these or one of the others like them? To download ExceleTel TeleTools trial software now. You may also directly to get help or more information about replacing your current computer telephony software development tool. ExceleTel Inc. Driverpack Solution 16 Iso Utorrent For Pc. +1(919)233-2232 The etPlay control sends audio data to the audio device via the Windows Audio API. If the device does not support the format of the audio data, Windows will search for a CODEC that has the ability to convert the data from the current format to a supported format.

Diagram 1 illustrates the data passing through a CODEC; diagram 2 does not utilize a CODEC. CODECs are specialized drivers that receive streamed audio data in one format and output a stream of audio data in a different format.

The use of a CODEC is automatic. The only way to avoid utilizing CODECs is to send the audio data to the device in a format that it supports natively. Most CODECs seem to be work well however we have seen some create problems.

For example the header information that is generated by some CODECs is not always compatible with the Dialogic audio drivers; this will cause an error. CODECs execute at the operating system level. This is something to keep in mind if your application supports a large number of lines.

For example if you had 48 lines playing wave files simultaneously requiring conversion then 48 copies of the CODEC would need to execute at the same time draining your system’s resources. You will need to check with your telephony hardware supplier for audio formats that your device supports natively to avoid utilizing CODECs. Decoding Wave File Formats with TeleScope The TeleScope utility supplied with ExceleTel TeleTools makes it easy to experiment with your telephony device. Use it to learn how your device works and to debug problems with your code and even the telephony device, it’s drivers and Telephony Service Provider (TSP). Please take the time to read the “Using TeleScope” and the “How Do I Do That?” sections of the ExceleTel TeleTools help file. Most telephony devices manufacturers supply sample programs and audio (wave) files with their device and drivers. For example Dialogic has their TAPI sample program (Takler32.exe) and the wave file Play.wav (uLaw 8,000 Hz, 8-bit, Mono).