*/
	write32(16);
	/* sample format (raw) */
	write16(1);
	/* channel count */
	write16(numChannelsNew);
	/* sample rate */
	write32(sampleRate);
	/* byte rate (sample rate * block align) */
	write32(sampleRate*(numChannelsNew*bitRateNew/8));
	/* block align (channel count * bytes per sample) */
	write16(numChannelsNew*bitRateNew/8);
	/* bits per sample */
	write16(bitRateNew);
	/* data chunk identifier */
	writeString('data');
	/* data chunk length */
	write32(dataLength);
	// 写入采样