Antex electronic SX-34 Files recorded are of poor quality, There are dropouts or pops and clicks

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too hot. To see if this is the problem, does the Line Out sound distorted when just listening to the record source as a feed- through?

Files recorded are of poor quality.

1.Some formats, bitrates, and sample rates do not sound as good as others. PCM8 should not be used. It is provided only for backward compatibility. Record PCM16 at 48 KHz sample rate as a benchmark; this is the highest quality the card is ca- pable of. MPEG at 64K bits/sec or greater will give the best compromise between disk space used and sound quality.

2.See “Files I record sound distorted” and “There is a lot of noise or hum, even when the Antex Card is idle” above.

There are “dropouts” or “pops and clicks”.

1.You may be exceeding the maximum sample rate the card is capable of with the number of devices and compression for- mat chosen. See the section on “Dual Device Operation”.

2.This may also be an indication of a data throughput problem. In other words, your computer is not delivering data to the Antex Card fast enough.

If the file is stored on a network server, try copying the file to the local computer and playing it directly from the com- puter’s hard drive. If this solves the problem, the network or server is too slow. Using compressed file formats, such as MPEG may alleviate the problem.

Your hard drive may be fragmented or running low on space.

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Contents Antex Electronics Corporation September 17 Rev. ETh Street GARDENA, CaliforniaDeclaration of Conformity Table of Contents SX-34 Mixer and Block Diagram SX-6 Mixer and Block Diagram Figures Introduction Card InstallationSX-5e,6,34,35 & SX-36 Jumper Settings Jumper Settings & ConnectionsMaking Connections to the Card Addresses and InterruptsPage SX-35/36 Connections SX-35/36 Connector DescriptionLine I/0 JP8 MIC JP7 AUX in JP9Output Header JP5 SX-34 Connector DescriptionMicrophone Header JP7 AUX Header JP6Mono Header JP4 SX-6 Connections SX-6 Connector DescriptionMicrophone Input JP3 Line OUT JP2Balanced and Unbalanced Signals SX-5e Connector DescriptionImpedance and Signal Levels Playback and Record Devices COMPRESSION, Data RATES, and Networks ISO/MPEG-1 Bitrates 32 KHz 44.1 KHz 48 KHz Setup Tips Upgrade Driver, WIN Driver Installation WindowsSetup Tips Upgrade Driver, WIN Windows NT Antex Application Software Installation Sample Rate Using Windows Demonstration SoftwareMpeg Bitrates CompressionWave Device ChannelsVU Meters Record/Stop FileDual Device Operation VolumeInstalling and Using Multiple Cards in a System Mixer and Block Diagrams SX-36 Mixer and Block Diagram Page Page SX-36 Mixer SX-36 Block Diagram SX-34 Mixer SX-34 Mixer and Block DiagramSX-34 Block Diagram SX-6 Mixer and Block Diagram SX-6 Mixer SX-6 Block Diagram SX-5e Mixer SX-5e Mixer and Block DiagramPage SX-5e Block Diagram Antex Meter Antex MeterAntex Meter pull-down menu Antex Meter options Page Troubleshooting Files I record sound dull There are dropouts or pops and clicks Files recorded are of poor qualityToll Free 800 Phone 310 FAX 310 TECHNICAL/ORDERING InformationTerms Connectors for Male HeadersAppendix Page SX-36 SpecificationsAll Cards as applicable SX-6 SX-34About Digital Audio SX-5ePage Analog-to-Digital Digital-to-Analog