Digital microphone
AssigneeSennheiser electronic GmbH & Co. KG
InventorsGerrit Buhe, Axel Haupt, Frank Plath, Jan Watermann
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Abstract
The invention relates to a process for the transmission of digitized audio information of high quality and with a short delay, in particular processes for the transmission of digitized audio information in an audio pickup (microphone) and/or playback path. According to the invention there is proposed a channel filter which is used to shape the high frequency spectrum of the transmission, wherein the spectrum has no attenuation in a first range of about 100 to 300 kHz useful bandwidth and in a range outside the first range it has a stop-band attenuation of particularly preferably more than 60 dB or more than 80 dB.
Claims64
1-39. (canceled)
A process for transmitting digitized audio information of high quality and with a short delay, in particular, a process for transmitting digitized audio information in an audio pickup (microphone) and/or playback path comprising the steps of:
- using a channel filter to shape the high frequency spectrum of the transmission, said channel filter allowing the spectrum to have no attenuation in a first range of about 100 to 300 kHz useful bandwidth and in a range outside the first range allowing the spectrum to have a stop-band attenuation of particularly more than 60 dB or more than 80 dB.
Dependencies are inferred from the claim text.