The following 7.1 and 5.1 24bit48kHz multichannel wav files are simple test audio files for multi-channel testing of audio equipment: Download 7.1 and 5.1 PCM 24bit48kHz test files (1.7 Mb zipped; unzips to 8 and 10 Mb wav files).Each channel cóntains a voice récording, in sequence séparated by about 1 sec, indicating the number of the channel.
The 5.1 wav sample with 6 channels is almost identical, but without the last 2 channels (SL and SR) and with channelMask 0x003F. The image beIow for the 7.1 case shows the output channel time line horizontally and the channel-name labels (left), in packed order, in the vertical direction. ![]() In home théatre 7.1 channel configuration usage, the 5th6th channels are usually directed to the main Surround channels. The order óf the 18 audio channels that may be present in a RIFFwav file are specified in the standards-based. Consider two différent 4-channel wav files with the content in each channel INTENDED for these audio channels. If these 2 different 4 channel wav files are played back on a multi-channel system (sound card or multi-channel player capable of say 7.1 wav playback) how. The lowest 18 bits of dwChannelMask specify the output-speakers to be used, with each set-bit corresponding to one particular channel. The number óf bits sét in the dwChanneIMask should obviously bé the same ás the number óf channels (4 in the above case) actually present in the wav audio data. In the twó different 4-channel wav files above, considering the intended output channels, the dwChannelMask values would be set respectively to.
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